L&T Construction, Water & Effluent Treatment IC
SOP for Electrical Safety
Document No: IM-09-A125
Revision No: 00
Date:12/12/2020
Page 1 of 44
1. PURPOSE:
1.1.
This Safe Operating Procedure recommends safe practices, steps and
measures to be taken in protecting workers from the Electrical Hazards to avoid
“Personal Injuries, Occupational Diseases and environment damages” in line with EHS
Objective of “Zero Harm” across the sites.
1.2.
It also describes the steps and measures for COVID-19/ Pandemic outbreak
and preparedness.
2. TERMS & DEFINITION:
a. Current: The flow of electrical charge is referred to as electric current. There are two
types of current, direct current (DC) and alternating current (AC). DC is current that
flows in one direction with a constant voltage polarity while AC is current that changes
direction periodically along with its voltage polarity. Unit of Current is Ampere (A).
b. Voltage: Voltage is the difference in electric potential between two points, which (in a
static electric field) is defined as the work needed per unit of charge to move a test
charge between the two points. In the International System of Units, the derived unit
for voltage (potential difference) is named Volt (V)
c. Resistance: Electrical resistance (R) of an object is a measure of its opposition to the
flow of electric current. The reciprocal quantity is electrical conductance and is the
ease with which an electric current pass. The resistance of an object depends in large
part on the material it is made of and depends on the size and shape of an object. Unit
for resistance is Ohm (Ω).
d. Ohm’s Law: It states that the current through a conductor between two points is directly
proportional to the voltage across the two points. The formula for Ohm’s law is V=IR.
e. Places of work generally have power nominally supplied at 230 volt (single phase) and
400 volts (3 phase) although some larger workplaces will receive electricity at a higher
supply voltage
f. The main hazards with electricity are:
1. Contact with live parts causing shock and burns
2. Faults which could cause fires.
3. Fire or explosion where electricity could be the source of ignition in a potentially
flammable or explosive atmosphere, e.g. in a spray paint booth
g. The risk of injury from electricity is strongly linked to where and how it is used and
there is greater risk in wet and/or damp conditions.
h. The severity and effects of an electrical shock depend on several factors, such as the
pathway through the body, the amount of current and the length of the exposure time.
Other factors that may affect the severity of the shock are the voltage of the current,
presence of moisture in the environment, the phase of the heart cycle when the shock
occurs, and the general health of the person prior to the shock.
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SOP for Electrical Safety
Document No: IM-09-A125
Revision No: 00
Date:12/12/2020
Page 2 of 44
Fig. Electric Hazards
Fig. Body Resistance & Effects of Electric Shock
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L&T Construction, Water & Effluent Treatment IC
SOP for Electrical Safety
Document No: IM-09-A125
Revision No: 00
Date:12/12/2020
Page 3 of 44
3. PROCEDURE:
3.1.
Risk assessment of the routine and non-routine activities scheduled on the day
shall be done prior the beginning.
3.2.
Checklists, SOPs & Inspections from records section shall be done.
3.3.
Communication about the activities shall be conveyed in morning safety pep
talk.
3.4.
Inspection of all the equipment, hoses, cables, valves etc. shall be performed
before the commencing the blasting and frequently during the operations.
3.5.
Approved PPEs shall be ensured and provided.
3.6.
Precautionary measures shall be followed.
3.7.
Approved disposal shall be ensured at the end of the activity
4. ROLES & RESPONSIBILITIES:
4.1.
Project Manager:
a. The Project Manager shall demonstrate the commitment in managing safety and
health and, bear the final responsibility and accountability for the safety and health in
the industrial undertaking.
b. Shall ensure a safe and healthy working environment.
c. Shall provide the necessary resources for managing safety and health at the site.
d. Shall ensure the experience and trainings of employee is commensurate with the
employee’s assigned task.
e. Shall ensure that the roles and responsibilities for managing safety and health are
assigned, communicated throughout the levels and carried out effectively.
f. Shall ensure complete investigation of all dangerous occurrences and accidents and,
recommendations shall be followed-up.
4.2.
Line Management:
a. The line management personnel, Section/ Site-in-Charge, Zone In-charge, Site
Engineers have a supervisory role and are responsible for managing safety and health
at the site on a day-to-day basis.
b. Risk Assessment of spray painting or powder coating operations shall be done and
safety measures shall be established.
c. Shall ensure the frequent inspection and maintenance of all equipment before and
during the operations.
d. Shall ensure the usage of necessary safety equipment and personal protective
equipment for the assigned tasks.
e. Shall report all the hazards, incidents, injuries, and accidents, defects found in
equipment, PPEs etc. and deviations during daily operation to the management
immediately.
f. Shall understand and act in accordance with the safety rules, safe working procedures
and emergency response procedures.
4.3.
EHSO:
a. Shall ensure that the experience and training of the employee commensurate with the
employee’s assigned task.
b. Shall ensure that Safety Rules and Safe Working Procedures are made available,
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SOP for Electrical Safety
Document No: IM-09-A125
c.
d.
e.
f.
g.
h.
Revision No: 00
Date:12/12/2020
Page 4 of 44
understood and complied with relevant legislation.
Shall ensure that the risk assessment of spray painting or powder coating operation is
carried out and, safety measures are established.
Shall ensure regular and frequent check and maintenance of all the equipment being
used in the tasks.
Investigation of incidences, dangerous occurrences, and accidents and, follow-up
actions shall be ensured.
Up-to-date and Emergency Response Plans shall be established, and mock drills shall
be conducted whenever necessary.
Shall ensure that the necessary information and instructions, trainings are arranged
and provided to the workers.
Workers shall be supervised to follow safety rules and safe working procedures strictly.
4.4.
Competent Person:
a. An electrician is a tradesperson specializing in electrical wiring of buildings.
b. To do an electrical work in buildings one should get a license to do the work.
c. A Person who possess sufficient training, knowledge, experience and other abilities or
skills to be able to carry out their work safely and without risk to health. In other words,
a person who can identify existing and predictable hazards in the surroundings or
working conditions which are hazardous to employees and who has authority to take
prompt corrective measures to eliminate them.
d. The Certificate of Competency and Licenses prescribed under rule 45 of the Indian
Electricity Rules, 1956 shall be issued on the recommendation of the 'Board of
Examiners' from different Government Departments. Electrician shall possess ITI
Electrical grade and B-License for Electrician from Respective state Electrical
Licensing Boards.
5. HAZARDS:
HAZARDS
Physical
RISK
•
•
•
•
•
•
•
•
•
•
•
•
•
Electrical
•
High voltage or current
Excavation
Manual pole erection
Crane movement
Handling transformers
Fire
Fall of person/ material
Improper shutdown procedure
Excavation for erecting the pole and cable lying
Nearby structure may collapse of get fire
Exposure to high noise level
Slip and trip
Electrocution by contact with the overhead electrical lines/
while working under it
Wire dressing/ loose
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L&T Construction, Water & Effluent Treatment IC
SOP for Electrical Safety
Document No: IM-09-A125
HAZARDS
Revision No: 00
Date:12/12/2020
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
RISK
Short circuit
Static Electricity
Cable joints/ damaged cables
Without plug cable connection into board
Poor earthing
Fire
Overload of electrical equipment
Lack of MCCB/ RCCB
Repetitive/ sustained motion
Awkward posture
Stationary position
Exposure to toxic fumes
Oil/ chemical spillage
Insect/ Snake bites
Presence of poisonous plants
Biological
•
Chemical asphyxiation
Psychological
•
•
•
•
•
Work Over-load
Dissatisfaction
Strikes/Formation of unions
Productivity/ business loss
Effect on brand image
Ergonomic
Chemical
Page 5 of 44
6. PRECAUTIONARY MEASURES:
6.1.
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
Shock
The following technologies should be adopted to complement the overall shock
protection program and to minimize the risk of shock:
Voltage-rated gloves shall be worn wherever a shock hazard is present.
Proper design, installation, and maintenance of equipment earthing which is critical to
managing shock hazards shall be ensured.
Installation of RCCB (Residual Current Circuit Breakers)/ELCBs (Earth Leakage
Circuit Breaker) shall be carried out based on the company’s standards / procedures.
Periodic test of RCCB/ELCB should be carried out.
Battery-powered tools instead of AC power driven tools to be used wherever possible.
Reduced-voltage equipment
Double-insulated equipment
Insulated or voltage-rated tools
Voltage-rated PPE (e.g., gloves or helmets)
Insulated mats for floors
Insulated, flexible barriers for exposed equipment parts
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SOP for Electrical Safety
Document No: IM-09-A125
Revision No: 00
Date:12/12/2020
Page 6 of 44
Fig. RCCB TESTING
6.2.
Arc / Flashover
a. Arcing faults in electrical equipment are multi-energy events (i.e., involving heat, blast,
light, and sound) that generally produce high levels of energy release in a short
duration. This phenomenon can occur at low voltage levels as well.
b. It takes place due to phase to phase and phase to earth fault conditions. It may
c. cause heavy flashover which may result in severe injury to employees in the
d. close vicinity. Areas where dangers of Arc/Flashover hazards can occur should be
identified. There should be warning boards wherever use of ARC SUIT is mandatory.
6.3.
Static Electricity
a. Static electricity hazards, including lightning can be a source of ignition, and injuries.
It can result in shock to personnel and damage to equipment directly. It may also lead
to fires.
b. Ensure proper earthing and bonding of earthing conductors to equipment and
structures to prevent generation of static electricity.
c. Each site shall be equipped with adequate lightning arrestors.
Fig. Lightning Arrestors
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SOP for Electrical Safety
Document No: IM-09-A125
6.4.
Revision No: 00
Date:12/12/2020
Page 7 of 44
Fire and Explosion
a. Assess and manage the risk of explosion hazards associated with electrical equipment
b. Selection and procurement of electrical and non-electrical equipment appropriate for
the area classification (refer note below).
c. Maintenance of the mechanical integrity of the installation, including grounding and
bonding.
d. Promptly arresting the leakage of combustible gases and liquid and avoid
accumulation of combustible waste.
e. No hot work to be carried out without “HOT WORK PERMIT”
6.5.
Electrical Safety Devices
ELCB
RCCB
MCB
MCCB
An ECLB is a safety device used for installing in an electrical
device/ circuit with high earth impedance to avoid shock. These
devices identify small stray voltages of the electrical device on
the metal enclosures and intrude the circuit if a dangerous
voltage is identified. The main purpose of Earth leakage circuit
breaker (ECLB) is to stop damage to humans due to electric
shock.
A Residual Current Circuit Breaker (RCCB) is an important safety
measure when it comes to protection of electrical circuits. It is a
current sensing device, which can automatically measure and
disconnect the circuit whenever a fault occurs in the connected
circuit or the current exceeds the rated sensitivity. Aimed at
protecting an individual from the risk of electric shocks as well as
electrocution and fires, RCCB is particularly helpful in instances
of sudden earth fault. The presence of RCCB ensures that in
such cases, the circuit will trip immediately, and the person is
thus protected from an electric shock
A miniature circuit breaker automatically switches off electrical
circuit during abnormal condition of the network like overload
condition as well as faulty condition. Nowadays we use an MCB in
low voltage electrical network instead of fuse. The fuse may not
sense it but the miniature circuit breaker does it in a more reliable
way. MCB is much more sensitive to over current than fuse.
Whenever continuous over current flows through MCB, the
bimetallic strip is heated and deflects by bending. This deflection
of bimetallic strip releases mechanical latch. As this mechanical
latch is attached with operating mechanism, it causes to open the
miniature circuit breaker contacts, and the MCB turns off thereby
stopping the current to flow in the circuit. To restart the flow of
current the MCB must be manually turned ON. This mechanism
protects from the faults arising due to over current or overload.
Molded Case Circuit Breakers are electromechanical devices
which protect a circuit from Overcurrent and Short Circuit. Ranging
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SOP for Electrical Safety
Document No: IM-09-A125
Date:12/12/2020
Page 8 of 44
from 63 Amps up to 3000 Amps.
MCCB is an alternative to a fuse since it does not require
replacement once an overload is detected. Unlike fuse, an MCCB
can be easily reset after a fault and offers improved operational
safety and convenience without incurring operating cost. Molded
case circuit breakers generally have a Thermal element for
overcurrent and Magnetic element for short circuit release which
has to operate faster
The relay is the device that open or closes the contacts to cause
the operation of the other electric control. It detects the intolerable
or undesirable condition with an assigned area and gives the
commands to the circuit breaker to disconnect the affected area.
Thus, protects the system from damage
RELAY
6.6.
Revision No: 00
Hazardous Area Classification
a. When electrical equipment is used in, around, or near an atmosphere that has
flammable gases or vapors, flammable liquids, combustible dusts, ignitable fibers or
flying’s, there is always a possibility or risk that a fire or explosion might occur.
b. Those areas where the possibility or risk of fire or explosion might occur due to an
explosive atmosphere and/or mixture is often called a hazardous (or classified)
location/area.
c. Hazardous areas are classified into zones based upon the frequency of the occurrence
and duration of an explosive gas atmosphere.
Place in which an explosive atmosphere consisting of a mixture with air
ZONE 0
of flammable substances in the form of gas, vapour or mist is present
continuously or for long periods or frequently
Place in which an explosive atmosphere consisting of a mixture with air
ZONE 1
of flammable substances in the form of gas. vapour or mist is likely to
occur in normal operation occasionally.
Place in which an explosive atmosphere consisting of a mixture with air
of flammable substances in the form of gas, vapour or mist is not likely
ZONE 2
to occur in normal operation but, if it does occur, will persist for a short
period
6.6.1. Protection Techniques and Methods
Various protection techniques and methods have been developed and employed, thus
reducing or minimizing the potential risks of explosion or fire from electrical equipment
located in hazardous locations.
a. Flameproof Enclosure 'd' - Type of protection in which the parts which can 'ig nite
an explosive atmosphere are placed in an enclosure which can withstand the pressure
developed during an internal explosion of an explosive mixture and which prevents
the transmission of the explosion to the explosive atmosphere surrounding the
enclosure
b. Increased Safety 'e' - Type of protection applied to electrical equipment in which
additional measures are applied so as to give increased security against the possibility
of excessive temperatures and of the occurrence of arcs and sparks in normal service
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Document No: IM-09-A125
c.
d.
e.
f.
g.
h.
Revision No: 00
Date:12/12/2020
Page 9 of 44
or under specified abnormal conditions
Intrinsic Safety 'i' - Type of protection based upon the restriction of electrical energy
within equipment and of interconnecting wiring exposed to an explosive atmosphere
to a level below that which can cause ignition by either sparking or heating effects
Pressurization 'p' - Technique of guarding against the ingress of the external
atmosphere into an enclosure by maintaining a protective gas therein at a pressure
above that of the external atmosphere
Non-Sparking 'n' - Type of protection applied to electrical equipment such that. in
normal operation and in certain specified abnormal conditions, it is not capable of
igniting a surrounding explosive atmosphere.
Oil Immersion 'O' - Type of protection in which the electrical equipment or parts of
the electrical equipment are immersed in a protective liquid in such a way that an
explosive atmosphere, which may be above the liquid or outside the enclosure cannot
be ignited.
Powder Filling 'q' - Type of protection in which the parts capable of igniting an
explosive atmosphere are fixed in position and completely surrounded by filling
material to prevent the ignition of an explosive atmosphere.
Encapsulation ‘m' – Type of protection whereby parts that are capable of igniting an
explosive atmosphere by either sparking or heating are enclosed in a compound in
such a way that the explosive atmosphere cannot be ignited under operating or
installation conditions.
6.7.
Earthing
a. All extraneous metal parts of an electrical installation and adjacent metal work shall
be connected to earth.
b. The design of the earth system shall consider the protection of life from raised voltages
on external parts and the correct operation of the electrical protection systems.
c. Dual earthing should be provided.
d. Proper symbols and color codes should be used for earthing system.
e. International Standard – IEC 60364 formally defines different types of Earthing
arrangements.
Dual earthing Arrangement
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Plate Type Earthing
Pipe Type Earthing
a.
Generally, for plate type earthing
normal Practice is to use
b.
Cast iron plate of size 600 mm
x600 mm x12 mm. OR
c.
Galvanized iron plate of size 600
mm x600 mm x6 mm. OR
d.
Copper plate of size 600 mm * 600
mm * 3.15 mm
e.
Plate burred at the depth of 8 feet
in the vertical position and GI strip of size
50 mmx6 mm bolted with the plate is
brought up to the ground level.
f.
These types of earth pit are
generally filled with alternate layer of
charcoal & salt up to 4 feet from the
bottom of the pit.
a.
For Pipe type earthing normal practice
is to use GI pipe [C-class] of 75 mm
diameter, 10 feet long welded with 75 mm
diameter GI flange having 6 numbers of
holes for the connection of earth wires and
inserted in ground by auger method.
b.
These types of earth pit are generally
filled with alternate layer of charcoal & salt or
earth reactivation compound.
6.8.
Resistance Testing
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Page 11 of 44
6.8.1. Measurement of Earth Resistance (Three-point method)
Fig. Measurement of Earth Resistance (Three-point method)
a. In this method earth tester terminal C1 and P1 are shorted to each other and
connected to the earth electrode (pipe) under test. Terminals P2 and C2 are connected
to the two separate spikes driven in earth. These two spikes are kept in same line at
the distance of 25 meters and 50 meters due to which there will not be mutual
interference in the field of individual spikes.
b. If we rotate generator handle with specific speed we get directly earth resistance on
scale. Spike length in the earth should not be more than 1/20th distance between two
spikes. Resistance must be verified by increasing or decreasing the distance between
the tester electrode and the spikes by 5 meters.
c. Normally, the length of wires should be 10 and 15 meters or in proportion of 62%
of ‘D’.
d. Suppose, the distance of Current Spike from Earth Electrode D = 60 ft, Then, distance
of Potential Spike would be 62 % of D = 0.62D i.e. 0.62 x 60 ft = 37 ft.
6.8.2. Four Point Method
a. In this method 4 spikes are driven in earth in same line at the equal distance. Outer
two spikes are connected to C1 & C2 terminals of earth tester. Similarly, inner two
spikes are connected to P1 & P2 terminals. Now if we rotate generator handle with
specific speed, we get earth resistance value of that place.
b. In this method error due to polarization effect is eliminated and earth tester can be
operated directly on A.C
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Page 12 of 44
Fig. Earth Resistance Testing
6.8.3. Maximum allowable Earth resistance
Major power station
0.5 Ohm
Major Sub-stations
1.0 Ohm
Minor Sub-station
2 Ohm
Neutral Bushing
2 Ohm
Service connection
4 Ohm
Medium Voltage Network
2 Ohm
L.T. Lightening Arrestor
4 Ohm
L.T. Pole
5 Ohm
H.T. Pole
10 Ohm
Tower
20-30 hm
6.8.4. Treatments for minimizing Earth resistance
a.
b.
c.
d.
e.
Remove Oxidation on joints and joints should be tightened.
Poured sufficient water in earth electrode.
Used bigger size of Earth Electrode.
Electrodes should be connected in parallel.
Earth pit of more depth & width- breadth should be made.
6.8.5. Inspection of Earthing
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Page 13 of 44
All earth pits shall be inspected in a maximum frequency of 15 days jointly by P&M &
EHS, and the values will be recorded at IM 09.
6.9.
Lock Out Tag Out (LOTO)
a. A safe lockout and tagging procedure shall be established prior to work on or near
electrical equipment or lines.
b. A safe lockout and tagging procedure is an operating procedure by which a person,
action individually or as a member of a maintenance crew, may have a machine or
part of a machine or equipment/device removed from and held out of service until
released by that person.
c. A tag indicating “Danger! Do not operate” or the equivalent shall be placed at the power
source of the equipment being serviced. A safe lockout and tagging procedure shall
be strictly followed in securing electrical systems.
d. Power shall be turned off, tagged, and locked in the open position at the master switch
or at the main breaker.
e. A safe lockout and tagging procedure shall be required on all systems and equipment
because if the unauthorized removal or return to the service could result in injury,
damage, or loss
f. The person issued with a lock shall be issued with one key. The spare key and the
master key shall be held in a secure place by the supervisor and kept away apart from
the primary lock and key storage box.
g. Discharge Rods are used to discharge dead system having limited fault levels and
also to discharge the static & induced charges in the dead system or equipment,
particularly in transmission lines, cables, transformers, reactors, large bus bar
systems, switch-gears etc. The withstand capability of the devices and equipment is
expressed by their rated values of current, time and peak factor. IEC 61230:2008
discusses about Portable equipment for earthing or earthing and short-circuiting. Also
IS 2071 Part1:1993 can be referred for the Characteristics related to disruptive
discharge and test voltages
Fig. Use of Discharge Rods
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Page 14 of 44
h. LOTO Procedures
The specific actions for applying LOTO will differ from equipment to equipment, and
from facility to facility. The general LOTO procedure should follow a basic 6 step
process.
Prepare for Shutdown
Notify affected employees that
maintenance will be performed
under LOTO. The authorized
employee should review the
hazards and LOTO procedures
for the equipment that will be
serviced.
LOTO procedure.
Place Locks and Tags. Locks
and/or tags should be placed
on valves, breakers/electrical
disconnects, blank flanges,
and any other point called out
on the equipment specific
LOTO procedure.
Release/Block Stored Energy
Even after the energy source has been
disconnected, in the lockout safety
process, and the machine has been
locked out, that doesn’t entirely
guarantee that there’s no hazardous
energy still stored within the machine or
that it’s safe to perform maintenance.
At this time, it’s important to look for
any hazardous energy that’s been
“stored” within the machine, or any
“residual” energy. During this phase,
any potentially hazardous stored or
residual energy must be releived,
disconnected, restrained, or made nonhazardous in some other way
Shutdown Equipment
The authorized employee
will shut down the
equipment following the
requirements.
Isolate Equipment
Isolate the equipment from
the hazardous energy
sources using the equipment
specific
Verify Equipment
Isolation
Confirm that workers
are clear from the area,
locking devices are
securely in place, and
that the equipment is
isolated. Once this is
done, attempt a normal
startup to confirm that
the equipment does not
start.
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6.10.
a.
b.
c.
d.
e.
f.
g.
h.
Revision No: 00
Date:12/12/2020
Page 15 of 44
HIGH VOLTAGE DETECTOR AND DISCHARGE ROD
The salient features of High Voltage detector are as below
Detector body made up of unbreakable ABS material which holds very good insulating
properties.
Alerts with audio & visual indication through very High bright LEDs.
Works on 9V battery.
Capability to withstand rough handling.
Lightweight.
Can be easily fitted with discharge rods
Provided with self-test function to test the detector itself.
Discharge rod fixed with High Voltage Detector
Fig. Discharge rod fixed with High Voltage Detector
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6.10.1.
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Advantages of High Voltage Detector:
a. Helps in preventing the accidents happened to the workmen while attempting to
connect the discharge rod to the charged line (HT/LT).
b. In case of unintentional line charges (Specially during lunch hours) at site, the detector
fitted in the discharge rod will alert the workmen with audio & visual signal.
c. Typical error of workmen fixing the discharge rod to the charged line and next fixing of
ground wire to spike rods can be avoided.
d. Thus, High Voltage detector alerts the workmen if the line is charged and helps in
ruling out any incidents.
6.11.
Insulating Mats for Electrical Purposes
a. Mats of all classes shall be resistant to acid and oil and low temperature and shall be
identified by the respective class symbol.
b. Insulation mats shall be made with the material called Elastomer free from any
insertions deteriorating its dielectric properties. Upper surface shall have a rough
surface and the lower surface shall be plane.
c. Thickness of Mats for Different Classes shall be as follows:
Sr.
No.
1
2
3
4
Class of
Mat
A
B
C
D
Thickness
(mm)
2.0
2.5
3.0
3.5
Tolerance
(%)
+/- 10
+/- 10
+/- 10
+/- 10
AC (rms)
(kV)
3.3
11
33
66
DC
(V)
240
*
*
*
d. Mechanical properties of mats for different ambient temperature use are as follows:
Sr.
No.
1
2
Ambient Temp Range
(oC)
-10 to 55
-40 to 27
Tensile Strength
(N/mm2)
15
12
Elongation
(%)
250
350
e. Minimum insulation resistance for all classes of mats in wet condition will be 100000
MΩ, when measured with 5000 V Megger or 1 000000 M Ω with 500 V Megger. The
maximum value of the leakage current for all classes of mats shall not be more than
10 µA.
f. Minimum di-electric strength of the mats for different classes shall be as follows:
Sr.
No.
1
2
3
4
Class of Mat
Di-electric strength AC (Rms) (kV)
A
B
C
D
30
45
65
110
g. IS 15652 Insulating mats for electrical purposes shall be referred for the specifications.
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6.12.
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Routing of cables and Cable Joints
a. Cable markers shall be fixed to identify the route of the cables.
b. Cables passing through working area or traffic area shall be protected from damage
by elevating or covering them by suitably sized PVC sleeves/concrete tiles
c. Cables shall be routed through overhead poles at minimum 2400mm(8ft) height.
d. Cable Tray shall be used.
e. Safe hanger / clamp shall be used to avoid contacting with sharp edges
f. Cables shall not be held in place by staples, hung from nails, or suspended by wire.
g. Cables shall be marked by cable covers or a suitable marking tape and buried at a
sufficient depth their damage by any disturbance of the ground
h. Cables buried directly in the ground shall be armored or having metal sheath or be of
the PVC insulated concentric type.
Fig. Cable Routing (OH & UG Cables)
i.
j.
k.
l.
m.
n.
o.
p.
q.
For UG Cables, it shall be completely enclosed in nonconductive conduits. It shall be
buried at minimum of 500mm depth below GL.
Clearly mark the cable route and marking shall be displayed for underground electric
cable.
Joints in the cables shall be avoided wherever possible. Where unavoidable, jointing
of cables shall be carried out with the help of joining kits and no other jointing
procedure, such as locally fabricated compound boxed, is permissible
Regular joining kits shall be used irrespective of whether the cable are laid
underground or run above ground. Jointing of cable shall be done properly in such
way that phase and neutral wire joints are in different location to avoid tripping.
Polythene papers shall not be used for insulation of joints
Substandard type Extension box shall not be used.
Bare wires shall not be used.
Industrial type extension boards and plug sockets are used.
All portable appliances are provided with insulated Three Pin Plug and Socket
arrangement.
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Fig. Industrial Plug Tops
6.13.
a.
b.
c.
d.
e.
f.
g.
h.
Proper Use of External Cords
An extension cord looks harmless, but most extension cords carry 110 volts of
electricity, and 110 volts can kill. Extension cords, if not used correctly, can cause
electric shock, fires (from overloading circuits), and even slipping and tripping hazards.
Follow these tips for safe use:
Check that extension cords are correctly rated for the amount electricity they are to
carry. Heavy commercial duty cords are the minimum recommended on any
construction site.
Ensure that all extension cords are serviceable and free of exposed wiring and splices,
frayed areas, and/or deteriorated insulations. Discard extension cords with broken
wires or damaged insulation.
Connect only one device at a time to extension cords.
Use extension cords for temporary purposes, not for permanent installation. Where
there is a permanent need for an electrical outlet, one should be installed.
Do not tape or splice extension cords.
Do not place extension cords across walkways or doorways where they could pose a
tripping hazard.
Do not place extension cords under carpets, under doors, or other locations that
subject the cord to abrasion or other damage.
Do not drive any vehicle over extension cords
6.14.
IP Distribution Boxes and Double Insulated Cables
a. A distribution board (also known as panelboard, breaker panel, or electric panel) is a
component of an electricity supply system that divides an electrical power feed into
subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit
in a common enclosure.
b. Normally, a main switch, and residual current breakers with overcurrent
protection (RCBO), are also incorporated.
c. Electronic enclosures are used to provide a secure space for cable connections
through multiple entry points.
d. IP 65 Distribution boxes rated as "dust tight" and protected against water projected
from a nozzle.
e. IEC 61439-3:2012 defines the specific requirements for distribution boards intended
to be operated by ordinary persons
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f. Double insulated cables have two levels of insulating materials between the electrical
parts of the appliance and any parts on the outside that you touch. inner coating is
designed to stop current leakage and keep the transported power levels consistently
high.
g. The second layer, which is wrapped around the current insulating coating, is meant to
act as a mechanical sheath.
6.15.
Electrical Tools & Equipment
a. Employees shall use insulated tools or handling equipment when working inside of a
restricted approach boundary with exposed energized conductors or circuit parts.
Insulated tools shall be protected from damage. Insulated tools shall be:
1. Rated for the voltage on which they are used.
2. Inspected prior to each use.
3. Designed and constructed for the environment in which they are used
b. Periodically calibrate the electrical equipment such as Cable detector, RCCB and
Earth Resistance testers.
c. Power Tools, Test equipment, leads, cables, power cords, probes, and connectors
must be visually inspected for external defects.
d. Discharge rods for grounding purpose, Underground Utility Detectors, insulated
crowbar is certain equipment that are used to ensure safety during electrical related
activities
e. Discharge Rods are used to discharge dead system having limited fault levels and
also to discharge the static & induced charges in the dead system or equipment,
particularly in transmission lines, cables, transformers, reactors, large bus bar
systems, switch-gears etc.
Fig. Discharging Rods & Crowbars
6.16.
Essential Work Procedures for Various Conditions
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6.16.1.
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Working on or near Electrically Energized Equipment
a. Work on or near any live conductor shall be carried out only in case of exceptions,
after a thorough HIRA has been carried out.
b. When working on or near energized electrical equipment it shall be ensured that no
other work should be performed within the prohibited approach boundary
c. Permission to work on such locations requires authorization from Engineer in charge
regardless of the PPE used or design of equipment. Appropriate control measures and
suitable precautions (including the provision of suitable PPE) have been taken
d. Recommended PPE: Helmet, voltage rated hand gloves, safety shoes, safety goggle
with face shield, FR (Flame Resistant) coat, gas mask, acid resistant aprons.
6.16.2.
Working near Overhead Lines
a. Work in areas where overhead lines are present should be monitored carefully. HIRA
shall be carried out and adequate precautions taken before such work is permitted.
b. Adequate precautions should be taken while using long length equipment and tackles
in these areas.
c. Reduction in clearances should be considered while working in vicinity of HV lines.
d. Personnel working in these areas should be aware of Induction Voltages present.
e. Personnel should be alert to fault occurring on adjacent lines. Working at height
Procedure shall be followed
f. Retro-reflective goal post can be installed to minimize the electrical hazards.
Fig. Goal Post Arrangement and Safe Clearance
g. Minimum clearance between construction machinery and electrical lines shall be
maintained as given below:
Sr.
No
1
11 kV and below
Safe Clearance from P&M or
any other conductor
1.40m
2
Above 11 and below 33 kV
3.60m
3
Above 33 and below 132 kV
4.70m
Phase to phase voltage in the Lines
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4
Above 132 and below 275kV
5.70m
5
Above 275 and below 400 kV
6.50m
6.17.
Temporary Wiring
a. Electrical installations are often required to be designed and erected for use for short
periods of time ranging from a few hours to few months and are connected to the
supply source in open ground. Such installations are generally unprotected from
environmental hazards as compared to installations in buildings.
b. The major risks in the use of power in such installation arise from short circuit resulting
in fire accidents and exposure to live wire resulting in shock. It is, therefore, imperative
to lay down the necessary precautions to be observed for such installations from the
point of view of safety
b. Temporary wiring shall be done with all safety systems, ELCBs, warning signs, in place
and in working condition.
c. Knowledge of source isolation points shall be known to the working personnel.
d. Wiring for temporary supply shall be done with proper plug and socket arrangement
i.e. male and female connectors
Fig. Male and Female Connectors and Crimping Tool
e. A crimping tool is a device used to conjoin two pieces of metal by deforming one or
both of them to hold each other. The result of the tool's work is called a crimp. crimping
is done for affixing a connector to the end of a cable
f. Proper earthing should be applied to all equipment and tools used. Temporary wiring
will be allowed only in the following cases:
1. Construction, remodeling, demolition of buildings and / or structures.
Maintenance, repair of equipment
2. Emergencies, testing activities, experiments, and developmental work
3. Temporary wiring shall be removed immediately upon completion of
construction, or the purpose for which it was installed
g. The physical and electrical requirements for PVC insulation and sheath of electric
cable are covered in IS 5831. The types of PVC compounds covered by this standard
are:
Type A
Type B
General purpose insulation for maximum rated conductor temperature
70°C intended for cables with rated voltages including 3.3 kV.
General purpose insulation for maximum rated conductor temperature
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Type C
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Page 22 of 44
70°C intended for cables with rated voltages above 3.3 kV.
Heat resisting insulation for maximum rated conductor temperature 85°C
intended for cables with rated voltages up to and including 1100 volts
h. As per IS 694: 2010, Dimensions of Single Core Non-sheathed Cables with Rigid
Conductor (Class 1 or Class 2) for general Purpose (Maximum Conductor
Temperature 70°C or 85°C) is as below
i.
Nominal Cross-Sectional Area of
Conductor(mm2)
0.5
Thickness of Insulation (mm)
0.75
0/6
1.0
0.6
1.5
0.7
2.5
0.8
4.0
0.8
0.6
Special precautions should be taken in case of temporary wiring installation. The
precautions taken shall provide a level of safety equivalent to or greater than that
provided by fixed / permanent wiring.
6.18.
Electrical Power Tools
a. Appropriate personal protective equipment such as safety goggles and gloves must
be worn to protect against hazards that may be encountered while using hand tools.
b. Workplace floors shall be kept as clean and dry as possible to prevent accidental slips
with or around dangerous hand tools.
c. The exposed moving parts of power tools need to be safeguarded. Belts, gears, shafts,
pulleys, sprockets, spindles, drums, flywheels, chains, or other reciprocating, rotating,
or moving parts of equipment must be guarded.
d. Power tools must be fitted with guards and safety switches; they are extremely
hazardous when used improperly.
e. The types of power tools are determined by their power source: electric, pneumatic,
liquid fuel, hydraulic, and power actuated. Never yank the cord or the hose to
disconnect it from the receptacle.
f. Never carry a tool by the cord or hose.
g. Keep cords and hoses away from heat, oil, and sharp edges.
h. Disconnect tools when not using them, before servicing and cleaning them, and when
changing accessories such as blades, bits, and cutters.
i. Keep all people not involved with the work at a safe distance from the work area.
j. Secure work with clamps or a vise, freeing both hands to operate the tool.
k. Avoid accidental starting. Do not hold fingers on the switch button while carrying a
plugged-in tool.
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l.
m.
n.
o.
Maintain tools with care; keep them sharp and clean for best performance.
Follow instructions in the user’s manual for lubricating and changing accessories.
Be sure to keep good footing and maintain good balance when operating power tools.
Wear proper apparel for the task. Loose clothing, ties, or jewelry can become caught
in moving parts.
p. Remove all damaged portable electric tools from use and tag them: “Do Not Use.”
Fig. Working with Electrical Power Tool
6.18.1.
Two Ways to Wire an Electric Tool
1. There are two different ways of wiring an electrical tool: double insulation or the use of
equipment grounding. First of all, the individual wires in the tool and cord are insulated
and the cord itself is also insulated. These are the first level of insulation. With the
double insulation method, the manufacturer provides a second level of insulation
inside the tool, to reduce the risk of a damaged “hot” wire within the tool from coming
in contact with any exposed metal on the tool. Double insulation protects you by
providing another insulation barrier, preventing a wiring defect that could allow an
energized conductor to touch any metal on the tool that you can touch. A double
insulated tool will be marked on its handle or on a data label with the words “Double
Insulated” or with a symbol: a square box within a box.
2. With the equipment grounding method, a third wire is added to the tool’s wiring and
connected to a round pin on the tool’s plug. The other end of this grounding wire is
connected to the metal frame of the tool. The 3-conductor plug on the tool must be
plugged into a grounded outlet. The equipment ground connection on the outlet must
be connected to a grounding connection at the electrical panel. The steel electrical
panel is then connected to the earth. This is generally done via clamping a system
ground wire to a METAL cold water pipe or to ground rods driven into the earth.
Equipment grounding only works when there is a permanent and continuous electrical
connection between the metal shell of a tool and the earth. If a wiring defect in the tool
allows an energized wire to touch the tool’s metal shell, grounding provides a low
resistance path to earth for the resulting current. This will generally allow enough
current to flow so that a fuse will blow or a circuit breaker is tripped, thus turning off
the electricity in that circuit. If this grounding path is broken at any point, the tool is
NOT GROUNDED and the operator is at risk of shock or electrocution
6.19.
Lighting Poles
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a. Dedicated earth electrode shall be provided for each pole with proper interconnection
between earthing point of pole and electrode as marked.
Ref. Typical Drawing For 6mtr. Height Lighting Pole available in Scheme Drawing
Folder in View EHS Document Library.
b. Earthing of Lighting pole and junction box shall conform to IS-3043/IE Rules
c. Do not climb on Lighting Pole for maintenance
d. Never operate and do installation during electrically vulnerable conditions
e. Maintenance and change of lights shall be carried out only after shutdown, LOTO,
disconnections and demounting of poles
6.20.
Lightning
a. Regularly monitor weather conditions and local weather forecasts prior to scheduled
activities. When thunderstorms threaten, don't start anything you can't quickly stop.
b. Pay attention to the daily forecasts so you know what to expect during the day. Also
pay attention to early signs of thunderstorms: high winds, dark clouds, rain, distant
thunder or lightning. If these conditions exist, do not start a task you cannot quickly
stop, and seek a safe place to wait out the storm.
c. Assess your lightning risk and take appropriate actions. During thunderstorms no
place outside is safe.
d. If you can hear thunder, lightning is close enough to strike. Stop what you are doing
and seek safety in a substantial building or a hard-topped metal vehicle.
e. Regularly monitor weather conditions and local weather forecasts prior to scheduled
activities. When thunderstorms threaten, don't start anything you can't quickly stop.
Pay attention to the daily forecasts so you know what to expect during the day. Also
pay attention to early signs of thunderstorms: high winds, dark clouds, rain, distant
thunder or lightning. If these conditions exist, do not start a task you cannot quickly
stop, and seek a safe place to wait out the storm.
f. Assess your lightning risk and take appropriate actions. During thunderstorms no
place outside is safe. If you can hear thunder, lightning is close enough to strike. Stop
what you are doing and seek safety in a substantial building or a hard-topped metal
vehicle.
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g. Understanding of SAFE shelters is essential. SAFE evacuation sites include:
1. Fully enclosed metal vehicles with windows up
2. Substantial buildings
3. Low ground
h. UNSAFE SHELTER AREAS include all outdoor metal objects, like power poles,
fences and gates, high mast light poles, electrical equipment, mowing and road
machinery.
1. AVOID solitary trees.
2. AVOID water.
3. AVOID open fields.
4. AVOID high ground and caves.
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i.
j.
k.
l.
m.
n.
o.
p.
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Wait a minimum of 30 minutes from the last observed lightning or thunder before
resuming activities. Be extra cautious during this phase as the storm may not be over.
Lightning's remote distance is easy to calculate: “If you hear thunder, the associated
lightning is within audible range.”
Suspend activities, allowing sufficient time to get to shelter. Of course, different
distances to safety will determine different times to suspend activities.
Be aware of your surroundings and the nearest safe area.
Know what objects and equipment to avoid during a thunderstorm.
Stay off and away from anything tall or high, including rooftops, scaffolding, utility,
poles and ladders.
Stay off and away from large equipment such as bulldozers, cranes, backhoes, loaders
and tractors.
Do not touch materials or surfaces that can conduct electricity, including metal
scaffolding, metal equipment, utility lines, water, water pipes and plumbing.
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6.20.1.
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Page 27 of 44
Function of a Lightning Conductor
a. A lightning rod or lightning conductor is a metal rod or metallic object mounted on top
of an elevated structure, such as a building, a ship, or even a tree, electrically bonded
using a wire or electrical conductor to interface with ground or "earth" through an
electrode, engineered to protect the structure in the event of lightning strike. If lightning
hits the structure, it will preferentially strike the rod and be conducted to ground through
the wire, instead of passing through the structure, where it could start a fire or cause
electrocution. Lightning rods are also called finials, air terminals or strike termination
devices.
b. In a lightning protection system, a lightning rod is a single component of the system.
The lightning rod requires a connection to earth to perform its protective function.
Lightning rods come in many different forms, including hollow, solid, pointed, rounded,
flat strips or even bristle brush-like.
c. The main attribute common to all lightning rods is that they are all made of conductive
materials, such as copper and aluminum. Copper and its alloys are the most common
materials used in lightning protection.
d. The height of lightning arrester has to be decided based on IS 3043: 1987 guidelines
and lightning radii for the protection of the structure.
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6.21.
Revision No: 00
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Personal Protective Equipment
It is important that anyone working with or around dangerous electrical equipment use
personal protection equipment to keep them safe in the event of an accident. The
following are among the most frequently used types of PPE that can keep your
workplace safer.
a. Use helmet mounted induction tester while working near the Transmission lines.
Fig. Electrical Related PPEs
b.
c.
d.
e.
Rubber Shoes with insulated sole.
Face mask shall be used for arc protection
Rubber gloves for electrical purposes offer protection against electric shock
IE 61482 standard was set up for clothing designed to provide protection against the
thermal hazards of an electric arc
6.21.1.
Testing of Electrical Hand Gloves
a. The rubber gloves must be subjected to an air test along with the inspection.
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b. Grab the glove by the cuff, flip it around several times to make a seal, and then roll the
glove toward the fingers. An air pocket will form within the glove.
c. Hold tightly the rolled portion of the glove and inspect the inflated exterior of the glove
for cracking or any degradation of the insulating material surface.
d. Forcing air into the glove will expose any damage to the insulating material that might
otherwise not be seen when performing only a visual inspection.
e. In addition, you will also want to carefully inspect the glove for any holes in the
insulating material.
f. To inspect for a hole in the glove, hold the glove close to your ear.
g. If you hear air escaping from the glove or if the glove will not hold pressure, the glove
is damaged and shall be removed from service
Fig. Testing of Electrical Hand Gloves
6.21.2.
Classification of Helmets
In terms of electrical performance, ANSI Z89.1-1986 recognizes three different classes:
Class of
Helmet
A
B
C
6.22.
Protection
Protect against impact, penetration and low-voltage electrical
conductors and are proof-tested at 2,200 volts of electrical charge.
Protect against impact, penetration and high-voltage electrical
conductors’ proof-tested at 20,000 volts.
Protect against impact and penetration only. Class C hard hats are
usually made of aluminum, which is an electrical conductor, and
therefore should not be used in situations involving electrical hazards
Electrical Safety Training and Awareness
Proper training shall be ensured to the workers for the electrical activities carried out.
The workers should be made aware about the possible hazards that could happen
during the activity and also the precautionary measures that need to be adopted in
case of chance of a risk.
The electrical safety program principles, include, but are not limited to, the following:
a. Protect the employee from shock, burns, blast, and other hazards due to the working
environment.
b. De-energize equipment and place into an electrically safe working condition before
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c.
d.
e.
f.
g.
h.
i.
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Date:12/12/2020
Page 30 of 44
working on it, if possible.
Plan every job and document first-time procedures.
Anticipate unexpected events.
Identify and minimize the hazards.
Inspect and evaluate the condition of all electrical equipment
Maintain the electrical equipment’s insulation and enclosure integrity.
Use the right tools for the job.
Assess employee’s abilities and train for deficiencies.
Safety awareness posters shall be made available at site locations for the awareness
of the workers and staff. It helps them to be aware about the measures adopted in
case of a electrical hazards occurs.
6.22.1.
Electric Shock Survival
Fig. Electrical Safety Posters
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6.22.2.
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Mock drill on Electric Shock
Mock drills shall be conducted at sites on a periodic interval to impart the
awareness to staff and workmen on the emergency procedures that need to be
ensured on occurrence of an hazard.
6.23.
General Safety Measures
a. Regular shifts or rotation of the job shall be ensured.
b. Safe execution card, permit to work system and safe operating procedures shall be
adhered.
Fig. Implementation of Skill Authorization Pass with Training Details
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c. Pep talk shall be given before the execution of the work
d. The associated risk and its control measures shall be given during Toolbox Talking.
Fig. Fire Fighting Training
e. Training and education, job rotation, job redesign, or designing rosters as per the site
specifications.
Fig. PEP Talk
f. Good housekeeping shall be maintained regularly to ensure pedestrian routes.
g. The First Aid Kit and Drinking Water facility shall be ensured.
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h. Training shall be provided for Electric Shock Survival First Aid
i. The behavior of workers, supervisors in the working area shall be monitored and
behavior-based safety training to all employees shall be provided.
j. Drug & Alcohol Policy and Smoke-free Policy shall be adhered.
k. Use of approved personal protective equipment for different tasks as per the required
standards.
l. Solution Description (VIEW EHS): View EHS is a new centralized reporting,
documentation and performance measurement system for EHS Management System.
This Module digitalizes the entire process of EHS Management by linking every site,
Cluster, Segment, Business Unit and Independent Company’s Key Performance
Indicators to their EHS Objectives.
7. STANDARDS/ LEGAL REQUIREMENTS:
1. BOCW Central Rules, 1998
2. The Factories Act, 1948
3. Indian Electricity Rule, 1956
4. IP 55
5. Industrial Dispute Act, 1947
6. Indian Electricity Rule, 1956
7. The Occupational Safety, Health and Working Conditions Code, 2020
Clause 6(l)
Duties of Employer
Clause 10(l) Notice of certain accident
Clause 11
Notice of certain dangerous occurrences
Clause 12(l) Notice of certain diseases
Clause 13
Duties of employee
Clause 22
Constitution of Safety Committee and, appointment of Safety Officer
Clause 23
Responsibility of employer for maintaining health, safety and working
conditions
Clause 24
Welfare facilities in the establishment, etc.
Chapter VII
Hours of work and annual leave with wages
Clause 33
Maintenance of registers, records and filing of returns
Chapter X
Special provision relating to employment of women
Clause 55
Responsibility for payment of wages
Clause 57
Prohibition of employment of contract labour
Part II
Inter-state migrant workers
Part III
Audio Visual Workers
Part VI
Building and other construction workers
Clause 82
Dangerous occurrences
Clause 87
Emergency Standards
Clause 88
Permissible limits of exposure of chemicals and toxic substances
Clause 89
Right of workers to warn about imminent danger
General
IS CODES
IS 5182: Part 1 to 21, IS 8095: 1976, IS 8990: 1978, IS 9457: 1980, IS
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Electrical and
Electronics
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11972: 1987, IS 14489: 1998, IS 15296: 2003, IS 18001: 2000, SP 53:
1992
IS 15652, IS 818 : 1968 , IS 694: 2010, IS 2148 : 2004, IS 2309 : 1989,
IS 3043 : 1987, IS 4691 : 1985, IS 5216 : 1982 Part I, IS 5216 : 1982
Part II, IS 5424 : 1969, IS 5571 : 2000, IS 5572 : 1994, IS 5780 : 2002,
IS 6381 : 2004, IS 6539 : 1972, IS 7577 : 1986, IS 7724 : 1975, IS 7689
: 1989, IS 7820 : 2004, IS 8239 : 1976, IS 8607 : 1983 Part 5, IS 8923 :
1978, IS 8945 : 1987, IS 9249 : 1979 Part 1, IS 9249 : 1982 Part 2, IS
9835 : 2001, IS 11000 : 1988 Part 1, IS 11005: 1984, IS 11713 : 1986
Part 1, IS 11743 : 1986, IS 12459 : 1988, IS 13925 : 1998 Part 1, IS
13947:Part 5: Sec 2, IS 14231 : 1995 Part 1, IS 14989:2001, IS 15111 :
2002 Part 1, IS 15451 : 2004
Chemical &
Hazardous
Materials
IS 1260 : 1973 Part 1, IS 1446 : 2002, IS 2379 : 1990, IS 4155 : 1966,
IS 4209 : 1987, IS 11451 : 1986
Fire
Protection
IS 1642 : 1989, IS 1648 : 1961, IS 2189 : 1999, IS 2190 : 1992, IS 2406
: 1963, IS 3016 : 1982, IS 3034 : 1993, IS 6382 : 1984, IS 8757 : 1999,
IS 9668 : 1990
Personal Protective Equipment
Body
Ears
Eye & Face
Feet & Legs
Hands
Head
Respiratory
IS 9668: 1990, IS 4501 : 1981, IS 6153 : 1971, IS 7352 : 1974, IS 8519
: 1977, IS 8990 : 1978
IS 6229: 1980, IS 8520: 1977, IS 9167: 1979
IS 1179: 1967, IS 5983: 1980, IS 7524: 1980 Part 1, IS 8521 : 1977
Part 1, IS 8521 : 1994 Part 2, IS 8940 : 1978, IS 9973 : 1981, IS 9995 :
1981
IS 1989 : 1986 Part 1, IS 1989 : 1986 Part 2, IS 3737 : 1966, IS 3738 :
1998, IS 3976 : 2003, IS 4128 : 1980, IS 5557 : 1999, IS 5852 : 1996,
IS 6519 : 1971, IS 7329 : 1974, IS 10348 : 1982, IS 10665 : 1982, IS
10667 : 1983, IS 11225 1985, IS 11226 : 1993, IS 11264 1985, IS
13295 : 1992, IS 14544 : 1998, IS 15298 : 2002 Part 2
IS 2573: 1986, IS 4770: 1991, IS 6994: 1973 Part 1, IS 8807: 1978
IS 2745: 1983, IS 2925: 1984, IS 4151: 1993
IS 8318 : 1977, IS 8347 : 1977, IS 8522 : 1977, IS 8523 : 1977, IS 9473
: 2002, IS 9563 : 1980, IS 9623 : 1980, IS 10245:Part 1 to 46, IS 15322
: 2003, IS 15323 : 2003
8. COVID-19/ PANDEMIC PRECUATIONARY MEASURES:
a. SOP for Pathogenic Infection Prevention and Control (IM-09-A106) shall be referred.
b. If any employee or workmen found more than 38⁰ C, employee/ workmen shall be
advised not to enter to site office/ work location and need to self-quarantine for further
medical advisory.
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Fig. All workmen shall be engaged at site after thermal
c. Stoppage of any employee/ workmen found having fever and cough with breathing
problem and inform concerned department / contractors. Such employees to be
referred to admin and paramedic staff for further direction. Basis symptoms, person
shall be taken to nearest quarantine facility and later immediately to Govt. Hospital
only.
Fig. Daily Pep-talk shall contain the awareness about COVID-19 and preventive
measures to prevent spread
d. Work shall not be planned at COVID-19 RED HOTSPOT locations without obtaining
the permission from the district administration & health department.
e. Work shall be planned/ start where the Govt. has declared, areas as GREEN ZONES
i.e., no infection recorded after approval from management.
f. Movement of workmen shall be restricted to the concerned work locations (especially
green zones as declared by state authorities) only.
g. Workmen shall be instructed to maintain social distancing of 1 m whenever possible
(pep-talks, lunch times etc.)
h. Group meetings shall be minimised.
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Fig. Meetings shall be conducted by virtual platforms as much possible
i.
Workmen/ Sub-contractor shall keep sanitizer/ hand wash soap solutions, water in
sufficient quantity at all common points.
Fig. Hand sanitizing before proceeding to their work spots
j.
Promote regular and thorough hand washing by employees, contractors and
customers.
k. Avoid entry of Visitors to the sites as much as possible. Details of the visitor to be
recorded, travel & health (with respect to exposure to covid-19 positive cases) history
to be maintained.
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Fig. Sanitization of guest house before, during and after the stay
l.
m.
n.
o.
p.
All workmen shall be instructed to keep separate water bottle and avoid common water
bottle at all work locations.
Workmen shall not share their belongings like food, water bottles, utensils, mobile
phones etc. to other workmen.
PPEs issued to a person shall not be re-used by other workmen.
All workmen shall keep their PPEs separately and need ensure regular disinfection/
washing with antiseptic liquid.
All areas in the premises shall be disinfected completely using User friendly
disinfectant mediums through local health service or municipality.
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Fig. Sanitization of areas before start and after end of duty hours
q. Promote good respiratory hygiene & sanitization in the workplace
Fig. Pictorial posters in local language at office and sites
r. Approved disposal of used PPEs shall be ensured.
s. It shall be collected separately in yellow colored non-chlorinated plastic bags, clearly
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marked as “BIOHAZRD” and given to authorized dealer or a Common Bio-medical
Waste Treatment Facility (CBWTF) for disposing the waste; or
t. A MOU shall be signed between the organization and a hospital having waste
treatment facility in its premises or is connected under waste collecting network of
CBWTF.
Fig. Approved segregation & disposal of used PPEs
u. First Aid Centre Preparedness
1. The personnel attending the suspected/ infected personnel shall be aware of the
emergency response plan.
2. First Aid Centre shall be equipped with thermal screening device and required
PPEs.
3. At least 10 isolation ward/ cabin arrangement shall be done.
4. Emergency transportation with isolation cabin shall be arranged.
5. Emergency contact numbers shall be displayed at First Aid Centre.
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Fig. Ambulance
v. Dealing with suspected personnel
1. Isolate the person immediately
2. Inform Management
3. Transferring the suspected personnel to health facility
4. Contact tracing to be done in the immediate area
5. All persons who met the suspected carrier must be home quarantined
6. All details of the suspected carrier and home quarantined persons to be maintained
7. Address the mental health and social consequences of a positive case in the
workplace and offer information and support
8. Address how to keep business running even if a significant number of employees,
contractors and suppliers cannot come to the place of business - either due to local
restrictions on travel or because they are ill.
9. Communicate to all employees and contractors about the plan and make sure they
are aware of what they need to do – or not do – under the plan.
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Fig. COVID-19 Emergency Response
w. Transport Safety
1. It is recommended to use company transport or personal vehicles for movement of
people.
2. Each person to use hand sanitizer at boarding and disembarking
3. Each person to use Triple layer facemask post using the hand sanitization
4. Equipment Required in all Buses:
✓ thermal sensor gun
✓ pack of triple layered safety mask
✓ non-flammable hand rubs
✓ Bus drivers to be trained on the use of thermal screening equipment
Fig. Seating Guidelines
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5. Mandatory Bus Sanitation: Before start of pickup round and Immediately after drop-off
at workplace, bus to be sealed off until in use again
6. Screening of Bus operators and passengers on a boarding
7. Seating Guidelines: Only one person per row on each side and One row in front of and
behind each seated person to be left empty
9. RECORDS:
Document Name
Document No.
HIRA Routine
IM-08-B
HIRA Non- Routine
IM-08-C
EAISR Non- Routine
IM-08-D
EAISR Routine
IM-08-E
EHS Inspection and Monitoring Plan
IM-08-H
Relevant Site-Specific SOP
IM-09-A Series
Medical Screening and Skill Test documents
-
Retention Period
Till the end of
project
Till the end of
project
Till the end of
project
Till the end of
project
Till the end of
project
Till the end of
project
Till the end of
project
Till the end of
project
Till the end of
project
Project EHS Inspection
IM-09-B
Electrical safety Inspection Report
IM-09-C
EHS Protective Equipment, Plant, Vehicle and
Machineries inspection Report
IM-09-E
Till the end of
project
IM-09-H Series
Till the end of
project
Inspection Report
IM-09-H43
Till the end of project
PPE Checklist
IM-09-H48
Till the end of project
SOP for selection, use and Maintenance of PPE
IM-09-A72
SOP for Delivering Pep Talk
IM-09-A75
Checklist for Infection Prevention and Control
IM-09-H79
Till the end of project
IM 11
Till the end of
project
Relevant Activity Specific Checklist
Training Records
Till the end of
project
Till the end of
project
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Document Name
Date:12/12/2020
Page 44 of 44
Document No.
Retention Period
Till the end of
project
Till the end of
project
Till the end of
project
Till the end of
project
Pep Talk Records
IM 12
Applicable Permit to Work Systems
IM-14
SEC card
IM-14-H
Skill Authorization Pass
IM-14-N
IM-29
Till the end of
project
IM-29-C
Till the end of
project
IM-33
Till the end of
project
SOP for Earthing
IM-09-A67
Till the end of project
SOP for Precautions During Thunderstorm and
Lightning
IM-09-A68
Till the end of project
Emergency Preparedness & Response
Emergency Action Plan for Identified hazards
View EHS
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