THE PROJECT OF ENHANCING CAPACITY OF THE MATOLA
INDUSTRIAL AND COMMERCIAL INSTITUTE - MOZAMBIQIUE
METHOD STATEMENT FOR 1000kVA, 33/0,4kV TRANSFORMER INSTALLATION
25th April, 2023
1
THE PROJECT OF ENHANCING CAPACITY OF THE MATOLA
INDUSTRIAL AND COMMERCIAL INSTITUTE – MOZAMBIQIUE
Version no. 001
Document Title
METHOD STATEMENT OF INSTALLATION OF 1000kVA, 33/0,4kV
TRANSFORMER
Document No.
Document Status
Submitting for Approval
Revision No.
Language
English
Next review date
This Revision
Author:
Alexandre Daniel Mutemba
25/04/2023
Document control
Review:
Xingzhe Shang
30/04/2023
Jinglin Chen
Authorized
approver:
30/04/2023
Revision History
Author
Reviewer
Approver
Revision
number
Status
Revision
Description
date
2
Contents
1.
Scope ................................................................................................................ 4
2.
Rules and Standards........................................................................................ 4
3.
Resources......................................................................................................... 5
4.
3.1
Human Resources ...................................................................................... 5
3.2
Material, Machinery and Equipment ............................................................ 6
Procedure ......................................................................................................... 8
4.1
Activity according to flowchart order ........................................................... 11
4.2
Description of Activities .............................................................................. 11
4.2.1
Preparation of the works ......................................................................... 11
4.2.2
Study of the line trace (Survey) ............................................................... 11
4.2.3
Line trace cleaning ................................................................................. 11
4.2.4
Excavation for poles implantation ........................................................... 11
4.2.5
Installation of angle and insulators ......................................................... 12
4.2.6
Erection of the poles .............................................................................. 12
4.2.7
Installation of cable ACSR ..................................................................... 12
4.2.8
Power line crossing Road .............. Ошибка! Закладка не определена.
4.2.9
PT Installation ........................................................................................ 13
4.2.10
Housekeeping and cleaning................................................................... 17
5.
Quality Control ............................................................................................... 17
6.
Health, Safety and Environment.................................................................... 17
7.
Amendment and Additional Information....................................................... 19
8.
Omissions....................................................................................................... 19
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1. Purpose
The purpose of generating this method statement is to define the procedure step by step to
implement correct practices for 1000kVA, 33/0,4kV transformer, Medium Voltage Switchgear
Panel and Battery Bank installation (Substation Equipment’s), including accessories through
the guidelines contained herein so as to ensure that the job execution complies with
specification and serves the intended function to satisfactory level.
2. Scope

This method statement covers all processes related to Substation Equipment’s
installation and its accessories.
 This procedure is to be read in conjunction with the relevant Inspection Test Plan (ITP),
outlining the responsibility and the quality inspection/ verifications to be performed
by various parties like engineers, consultants and client.
 This document details preparation of work.
 Delivery and inspection upon arrival of material at site.
 Installation of the system.
The works referred to above must be carried out, ensuring the continuity of power supply of
the loads of the IICM infrastructure.
3. References, Codes & Standards
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Approved Shop Drawings
Specifications
Project HSE Pan
Project Quality Plan
Manufacture’s data sheets & Manufacture’s recommendations
Rules and recommendations of local public energy distributor (EDM – Electricidade de
Moçambique)
Recommendations of the local Electrical Authority
Approved Material submittal.
In a general way, all standards, decrees and regulations of Mozambique and in the
absence of these, the standards or international recommendations.
4. Health and Safety
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Strictly followed as per the manufacturer’s Health and Safety recommendations for
handling and use of the materials.
Ensure all involved personnel shall be aware of the same.
Specific safety measures have to follow as applicable, and all the safety measures are
covered separately in the project safety plan.
5. Operation
5.1 Material:
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Material used will be as approved by the Engineer.
The sizes and routes routing will be as per the approved Shop Drawings.
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5.2 Storage and Protection:
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Deliver components parts to site, completely identified in accordance with shop and
certified CAD Drawings prepared for this work.
Store in accordance with the manufacturer’s instructions, above ground, properly
protected from the weather and construction activities.
6. Substation Installation Responsibilities
6.1 Human Resources
For execution of this work will be involved the following technicians and responsibilities:
A. Project Manager Responsibility
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The Project Manager is overall responsible for the project in terms of work execution,
safety, planning and quality according to the Contract Specification and with the
approved drawings.
To ensure that the progressing of works is carried out according to the planned
program and as per the approved method of statement.
To ensure that all the equipment and material required executing the work are
available according to the planned construction program.
To co-ordinate with the Main contractor, MEP coordinator, Safety Officer for a safe and
proper execution of the works.
B. Site Engineer
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To ensure that the works are carried out according to the Contract Specification,
approved method statement and the shop drawings.
To provide all necessary information and distribute responsibilities to his construction.
To monitor the progress of work in relation with the work program and to report to
the Project Manager.
To co-ordinate with the safety officer and to ensure that the works are carried out in
safe practicing method.
C. Site Foreman
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The foreman will carry out his duties by maintaining continuous coordination with the
site engineer on daily basis, and ensure proper distribution of the work force on the
required and planned locations.
To ensure that his assistant foreman/ charge hand is aware of the job requirements
and they have enough information to carry out their duties properly.
To ensure that the daily work is progressing as planned and advice the site engineer
of any requirement for additional resources.
To ensure in consultation with the site engineer that the manpower involved in the
works are moving as agreed and planned for the work.
To control disposal of waste materials according to the instructions received from the
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site engineer.
To ensure full coordination with the safety officer to maintain safe working and proper
housekeeping of the site, following the proved safety measures and further ensure
that all his working team are aware of the same to prevent accident and losses.
To inform the site engineer regarding areas ready for inspection.
Foreman and the storekeeper are responsible for the distribution and control of
materials.
D. HSE officer
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Ensure the implementation of all the safety measures in accordance with the HSE plan
and everybody aware of it for its proper implementation.
Ensure all the implemented safety measures are adequate to maintain safe working
on the site.
Inspect all the site activities and train the person to prevent accidents and its proper
implementation.
Ensure that the site is maintained clean and tidy.
E. Manpower Required
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
Charge hand and Experienced Technicians
Responsible for doing manually excavation or digging, Tools and ordinary equipment
handling and perform all work according the instructions of Electrical Foreman.
F. Equipment Operators (Crane operator)
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Inspect large equipment before and after use to ensure they are working properly
Load and unload cargo and move them to the appropriate storage area
Follow all safety procedures while operating equipment and perform regular
maintenance and minor repairs when necessary.
6.2 Material, Machinery and Equipment
Prior to using any Machinery or equipment to execute any activity, it shall be inspected and
approved by the HSE officer and Supervisor Engineer.
The operators and drivers are will hold a validity driver’s or operators’ license permit license.
Only authorized drivers or operator will be allowed to operate machines or equipment.
To perform this activity will be used the following:
Material necessary
 Transformer and Medium Voltage Switchgear Panel components and Accessories shall
be in line with the approved material submittal and as per approved shop drawings

Poles (support) of wood creosoted

Cable Mink/ACSR

Spies cable

Tweezers

bimetallic connectors
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
guiding cradles
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Hooks,
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Spiking unions

insulators
Machinery and/or Equipment necessary

Crane Truck

Tool box

Portable hand tools

Portable drilling machines

Grinding Machines

Insulating Testing Equipment

Digital Multi-meter

Measuring Tape

Wheel barrows

Manual Easel

Pulleys

100kg Winch

Kit of keys
Personal protective equipment
Personal Protective Equipment (PPE) shall be issued to all the workers such as:

Safety shoes

safety helmet

• safety gloves

Earplug

Safety goggles (if required)

Electrician safety belt
Note: The wearing of the basic PPE shall be enforced fully.
7. Installation and fixation
7.1 Off-Loading:
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
Use Fork Lifts or Mobile Crane to off-load the transformer and Medium Voltage
Switchgear panel.
Make sure that the capacity of the fork lifts or mobile crane can carry the weight of
the equipment’s.
Off load the equipment’s on the designated off-loading area.
Proper care must be observed during off-loading to prevent unnecessary damage or
dents on the equipment’s.
Ensure that the equipment’s are properly protected and covered with tarpaulin.
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7.2 Pre-Installation:


All materials and documentation relevant to this particular section of works shall be
checked by the Construction Department prior to the commencement of works
ensuring that these are correct and approved type.
Before any permanent works will continue, pre-inspection on all materials, tools and
access for installation to be carried out.
7.3 Installation:
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Before the equipment’s will be delivered to site, ensure that the railing is fixed as per
approved drawings and comply on municipality requirement.
Move the equipment’s from the designated off-loading area or storage area using fork
lift and set them in position near to the substation building.
Make sure that the orientation of each equipment’s with regards to the position of
cable entries is correct.
Push in each equipment inside the substation room. Set each equipment on their final
positions and make sure that they are properly secured and protected.
Raise Request for Inspection for equipment’s Installation.
Conduct on site test for the transformer and .
Test shall include winding insulation resistance test and shall conform to
manufacturer’s recommendation and specification.
All tests must be recorded and conducted in the presence of Consultant by
manufacturer testing engineer.
Dress and terminate the incoming and outgoing cables on the transformers.
Ensure that the cables were supported properly.
Cable glands, lugs and termination kits shall be approved type.
After termination works has been completed, clean the transformer cable box and
ensure that it is free from foreign materials and excess openings must be sealed off
and ensure that all the connections are properly tight and torque.
Raise Request for Inspection for the cable terminations and dressing.
Commissioning:
Cover the cable boxes.
Bolts and nuts must be tightened properly.
Make sure that the transformer room is clean and free from foreign materials.
8. Procedure
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Phase 1 - Temporary transformer Installation
Construction of concrete base outside the
substation for the assembly of Temporary PT
Construction of T-Off to feed the temporary PT
Mounting a 12m pole to change the path of the
Medium Voltage line
Interruption in the power supply to the IICM
Dismantling of existing 2x500kVA
transformers
Assembly of temporary transformer 500kVA
and connection to the existing Low Voltage
Switchboard
Temporary transformer connection to the
power line (EDM)
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Phase 2 - 2x500kVA transformers Installation
Dismantling of the existing Medium Voltage and
metering equipment’s
Cleaning and painting of the substation building
Assembly of new Medium Voltage protection and
metering equipment’s
Assembly of new 2x500kVA transformers
Removal of Low Voltage cables from the temporary
transformer and connecting to the new transformers
Replacement of MCCB 120A in
MDB/SAS with MCCB 200A to
protect the MDB Lecture BD-1
cable
Replacement of MCCB 250A
in MDB/SAS with MCCB 350A
to protect the MDB - Dining
Hall cable
Replacement of MCCB 250A
in MDB/SAS with MCCB 450A
to protect the MDB –
Machinery workshop cable
Transfer of the Medium Voltage line from the temporary
transformer to energize the new transformers
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8.1 Activity according to flowchart order
The activities will be conducted as following:
Phase 1 - Temporary transformer Installation
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Study of the line trace
Line tracing cleaning
Excavation for pole´s erection
Installation of angles and insulators
Erection of poles
Installation of cable ACSR
Cable tensioning
Spying the lines
Housekeeping and cleaning
8.2 Description of Activities
8.2.1
Preparation of the works
a) Works will not commence until confirmation of all the safety checks and preconstruction planning including all the drawings are completed.
b) Prior the Electrical Engineer will introduce the work to be performed, the drawings
and the method statement to all involved technical team so they can be familiar
with it.
c) The HSE officer will brief with the workers about the safety issues in accordance
with the Risk Assessment plan.
d) Equipment will be checked by construction Manager prior to starting the works.
e) Prior of start works the Site supervisor Engineer will be noticed about it, so he can
be involved in the process.
8.2.2 Study of the line trace (Survey)
Topographer in coordination with the electrical engineer shall do the necessary survey to
set the power line. The trace shall as much as possible avoid the direction change.
Benchmarks to implant the poles will be set among thee trace-line.
This work will be done in coordination and approval of Supervisor Engineer.
8.2.3 Line trace cleaning
After the supervisor Engineer approve the Line trace, bush cleaning along the trace line
will be done. The cleaning will undergo respecting the safety and environmental measures.
8.2.4 Excavation for poles implantation
Prior to excavating the pole’s pit, the corner points are to be pegged out. The excavated
soil stays beside the pit of the pole serving for back-filling of the remaining hole after
erection of the pole.
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The depth of the pit will be the same for all the poles and it will not be less than 1.8m and
never exceed 2.0m.
The depth of excavation before the erection of the poles it will be approved by a site
supervisor Engineer.
8.2.5
Installation of angle and insulators
Before the poles are erected the angles and insulators shall be mounted in poles. The type
of insulators to be employed shall be defined during the execution of the work and before
it is used will be submitted for approval by the site supervisor engineer.
8.2.6
f)
Erection of the poles
Concreting of wooden poles is not permitted!
g) The base of the pole’s pit must at least have the diameter of the pole!
h) Prior to erecting the poles, the insulators are screwed to the pole resp. bolted to
the cross arms.
i)
The hollow spaces in the pole’s pit surrounding the pole are to be back-filled with
soil and stones. The soil is to be stamped for giving good stability to the pole.
j)
The pole shall be erected equidistant.
k) The maximum distant between two poles will be allowed is 100m.
l)
The erection points will be confirmed and approved by site supervisor engineer.
8.2.7
I.
Installation of cable ACSR
Handling
ACSR/TP conductor should not be rewound in the field from the shipping reel to another
reel. Reels containing ACSR/TP conductor should be stored upright, resting on the rims.
Never lay the reel on its side.
II.
Tensioners & Sheaves
Non-tension method of stringing shall be used such as laying the conductor out on the
ground and then lifting it into position on the poles.
As the conductor will be stringed under tension then a multi-groove bull wheel tensioner
will be used to install ACSR/TP conductor.
III. Tensioning
ACSR/TP conductor should be tensioned by placing a separate grip on each component
conductor. The two grips are connected through a snatch block with a sling. Tension is
applied to the snatch block with a hoist or other appropriate tensioning device. This
arrangement will apply even tension to the component conductors.
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IV. Spying the lines
The spies shall consist of cables or rods with links robust galvanised steel having a
minimum breaking strength of 600daN. The wires or wire cables should have no
constituents a diameter less than 3 mm.
Will be considerate spying in the following cases:
- Angle poles with the high efforts on the top;
- Terminal pole of the T-Off where spying should become angle pole or alignment
pole;
- Angle pole or alignment pole where is made a derivation (bypass);
The spies shall be fixed in the hole immediately below the mounting hardware clamps.
8.2.8 Temporary PT Installation
The temporary 500kVA, 33/0,4kV PT will be rural type, assembled to feed the total load of
the IICM electrical installations during the construction of the permanent new 2x500kVA,
33/0,4kV indoor PT.
The power transformer will be of rural type in portico and shall be equipped with a
transformer of 500KVA supported on concrete structure. Inside the concrete base, a
switchboard will be mounted with 800A circuit breaker to protect the power cable of the
general low voltage switchboard QGBT, which will be kept in operation during the
construction phase of the permanent PT. This QGBT will only be dismantled when the final
infrastructure is energized.
The gantry will be equipped with proper switching by means of drop-outs, lightning
protection (XBE rays), insulators, hardware (U profiles), earthing protection (grounding)
and due maintenance, according to regulations.
insulators, hardware (U profiles), hearting (grounding) protection and duly service away,
according to the regulation.
The capacity of PT shall be PT315KVA, 33/0.4 KV step-down of rural type porch (portico).
PT shall be placed a fence with “shark network”, properly structured.
The PT will be installed according to manual of procedure from the supplier.
8.2.9 PT Installation
During the installation of the transformer, the relevant operating requirements should
be strictly followed to improve the construction quality of the transformer installation to
ensure the stable operation of the transformer and the continuous and safe supply of
power.
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The installation of the transformer is not only related to the normal operation of the
entire power system, but also related to the subsequent power safety.
Therefore, during the installation of the transformer, it must be operated strictly in
accordance with the construction requirements. After the installation is completed, the
quality of the entire installation shall be inspected and controlled in time, and the
transformers that do not meet the standards shall be removed and replaced in time.
No problems in any process or details are allowed to ensure the durability and safety
of the power supply system.
If the installation process of the transformer does not meet the standard operating
process, the consequences are very serious.
Not only will it hinder economic development, it may also threaten the personal safety
of residents.
Therefore, the stability and safety of the installation and operation of the transformer
must be ensured, so as to ensure the smooth and safe operation of the power system,
thereby providing a guarantee for improving social benefits.
Transformer installation is an important guarantee for the stability of a regional power
system.
Transformer installation is very difficult, with very complicated technology and control
standards. During the construction process, a little carelessness will lead to the
installation of transformers that do not meet the standards. Therefore, you should be
more careful in some places that require special attention. Must be high quality and
high standards According to the construction process requirements, the construction
is carried out to ensure that the installation of the transformer meets the process and
standards.
Otherwise, once there is a problem in a small link, it will cause a series of follow-up
chain reactions and paralyze the entire power supply system, which will not only affect
the production and life of the society, but also cause a serious waste of social resources.
Therefore, for the installation of transformers, we must improve the control standards
and pay great attention to the places that are particularly prone to errors. The following
is an analysis of the places that are prone to problems during the installation of the
transformer.
First of all, before construction, the length of the transformer steel plate should be
determined according to the actual use and installation conditions, and the weight of
the transformer can be estimated in advance according to the material of the
transformer.
Secondly, the safety of the transformer is also very important, and specific issues
should be considered before installation.
In addition to ensuring the safety of the transformer through the construction process
and quality control during the installation of the transformer, attention should also be
paid to the production process of the transformer itself, whether the materials used
meet the standards, and whether the entire transformer meets the quality standards.
Before the formal installation, corresponding measures should be taken. After the test
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is passed, the formal installation can be carried out.
Transformer Installation Process
Scene Investigation
According to the current selection criteria for 500kV substation transformers, it is
necessary to predetermine the capacity, transformer, voltage regulation method, and
cooling method to understand whether each content meets the specified requirements
and standards.
After measuring the performance of the 500kV substation transformer, it is necessary
to ensure that the nitrogen pressure value is always maintained at 0.01 ~ 0.03Pa, so
that the transformer surface is in a state of no water accumulation for a long time, and
the installation can be carried out on the basis of no oil leakage in the insulating oil
tank.
In addition, it is necessary to conduct a comprehensive inspection of the entire site
environment, including weather conditions, climate conditions and operating conditions,
to ensure that the site meets the operating requirements of the 500kV substation
transformer.
Installation preparation
When determining the corresponding main transformer, ensure that it meets the
specific installation conditions, clean the insulating oil in time, and effectively use
routers, oil purifiers and other facilities to ensure that the quality of the insulating oil
added and the requirements of the transformer meet the corresponding requirements.
condition.
In addition, the radiator needs to be cleaned up in time.
Three functions and performance requirements of transformer oil
Regularly clarify whether there are any abnormal noises in the fan relays and oil pumps,
and check whether the pressure value fluctuates through the sealing test, and
effectively check the sealing effect of the related devices.
When opening the pipeline, it is necessary to inject the processed insulating oil in time
to ensure that the insulating oil can submerge the iron core inside the tank, check the
high seat, casing and test whether they meet the specific installation requirements,
and make corresponding adjustments And analysis.
Key points of transformer installation quality control
Solve the problem of oil leakage
In transformer installation, oil pressure is an important content to ensure the normal
operation of 500kV substation transformers.
In the transmission and distribution processing of the device, it is necessary to fully
rely on the SF interrupter device and the hydraulic system to complete the closing
operation, otherwise, once there is an oil leakage, it is easy to cause the internal oil
pressure to decrease, the action error or the equipment refuses to move.
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In the lockout protection device, equipment refusal can easily lead to abnormal
transmission and distribution. This situation has become an important concern for the
operation and maintenance of the main transformer of a 500kV substation.
When solving this type of problem, it is necessary to do a good job of post-precautions
to ensure that once an oil leak is found, it can be inspected on site in time. Identify the
cause of the oil spill and take targeted measures to solve such problems. Damage to
the sealing device can easily cause oil leakage in the equipment.
Deal with environmental issues
Generally speaking, the number of people in remote areas is small, and there are many
types of animals and plants.
To carry out operation protection work in this situation, it is necessary to timely verify
the on-site environment and prevent animals from entering the substation as much as
possible.
A humid environment will increase the risk of the main transformer, and it must be dried.
During this period, it is necessary to install moisture-proof devices such as protective
fences and protective nets to reduce the indoor humidity and ensure the normal
operation of the main transformer.
Install the necessary on-load voltage regulation switching device
The most important thing is the fixation of leverage.
Only when the lever position is fixed and reasonable can the jam be effectively avoided.
If the lever position is deviated, it will easily cause the jam of the entire system.
At the same time, it is necessary to frequently lubricate the transformer device. The
relevant staff should lubricate the parts of the transformer in time according to the local
humidity and climatic conditions, especially the part of the switching device must be
paid attention to.
In addition, the integrity of the contact should be checked regularly. In places where
friction or turning occurs frequently, the contact often breaks or is damaged.
Once the contact is broken, if it is not handled in time, the entire power supply system
will be paralyzed. For this, the relevant departments should send special personnel to
conduct regular inspections of the contacts, and report the damaged contacts to their
superiors in time. Replace in time.
In addition, it must be operated strictly in accordance with the relevant process
standards. For the switching of the order of the components, the installation must be
installed in strict accordance with the installation sequence in the manual to ensure
that it can be installed in the correct position to play its maximum role and interact with
other parts. coordination.
Improve quality inspection work
In the construction of a 500kV substation, the installation of the main transformer is an
indispensable installation process, which is related to the overall operation quality and
efficiency of the substation.
Therefore, electric power personnel should optimize installation technology and
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procedures, improve the efficiency and quality of production and operation of electric
power enterprises, strengthen inspection and maintenance, and enhance their own
sense of responsibility and safety, so as to ensure the safe and stable operation of
substations.
In addition, it is necessary to simulate the natural environment and voltage
environment of the transformer installation area to ensure the objectivity of the test
results, so that the transformer can operate stably in each area, and ensure the stability
of the local power supply system.
As mentioned above, the transformer and its auxiliary equipment should be regularly
tested and supervised, and the test results should be reported to facilitate subsequent
inspection work and ensure its long-term operation.
8.2.10 Housekeeping and cleaning
Housekeeping will be carried out at the end of each working day to remove surplus / waste
construction and unsuitable soils materials from the jobsite.
Final site cleanup will be done on completion of the backfill works to leave the site free of
debris and surplus materials.
9. Quality Control
To ensure a good quality of the works, at the commencement of the works PROJECT
MANAGER will conduct a Kick-off Meeting with the SUPERVISOR ENGINEER and
QUALITY CONTROL TEAM. At this meeting, the Project Manager will explain the Quality
Control process; discuss the project’s quality objectives and team members Quality Control
roles; and distribute a copy of the scope of services for the project along with the project
schedule.
The COMPANY will perform Quality Control review on all technical documents and other
deliverables such as letters, reports, plan sets, and calculations.
Any step from Flowchart of this work shall be noticed and approved by SUPERVISOR
ENGINERER.
The Quality Control and Assurance activities will be documented in the appropriate Quality
Control file established for this project.
10. Health, Safety and Environment
All Safety Rules, Safety Instructions and Procedures are mandatory. Similarly, all relevant
Safety Rules issued by Competent Authorities shall also be considered mandatory when
designated as such in Basic Safety Rules.
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For the safety measure of MV overhead lines shall every 250m shall be grounded the earth
cable placed on the poles and protected through the tube to a height of 2.5 m from the
floor.
Personal Protective Equipment (PPE) – General
 Basic PPE attire at construction sites and other similar work zones include, at
a minimum: hard hat; safety shoes and safety glasses.
 All employees/ workers shall use protective safety toe footwear when working
in areas where there is a danger of foot injuries due to falling or rolling objects,
or objects piercing the sole, and where such employee's feet are exposed to
electrical hazards. Electrical Hazard (EH) rated footwear shall be used when
working on or around electrical equipment over 50 volts, or in an area of
expected downed wires.
Flame Resistant Clothing (FR)
 Flame Resistant (FR) clothing will be worn when personnel work on energized
equipment/lines or when distance and position will expose the worker to electric
arc or flame hazards
 FR clothing shall be worn as the outermost layer of clothing
 FR clothing shall be worn when workers measure voltages or test or ground
electrical equipment or lines.
 FR clothing shall be worn when workers control/operate electrical equipment
over 50 volts at the device location or are within 3.00m of equipment which is
being physically operated by another worker
 FR clothing shall be worn where a hazard identification sign is posted.
Rubber Gloves and Sleeves
 Rubber glove will be used for work on all electrical apparatus at 50 Volts or
greater. Rubber gloves shall be donned before the worker leaves the ground
and shall be worn until the worker returns to the ground (commonly referred to
as “ground to ground”, “cradle to cradle”)
 Rubber sleeves must be worn where work is conducted within the minimum
approach distances of primary electrical apparatus that is not tested
deenergized and grounded.
 Exceptions (No rubber gloves) are necessary:
o
When working in a properly established equipotential zone.
o
When the operator remains at the same potential as the equipment by
being off the ground and on the equipment.
o
When a qualified worker performs transmission "hot stick" work on lines
69 kV or greater and no other energized wires are on the pole or
structure below the worker.
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o
When work is performed on transmission structures carrying only
energized conductors and the Live Line Techniques are not being
employed. While performing these activities, the worker shall utilize
conductive clothing such as conductive gloves, conductive boots, leg
straps and/or any other applicable conductive clothing.
o
When climbing a steel structure to perform structural reinforcements
while maintaining minimum approach distances from energized
conductors or apparatus.
Appointment of a Safety Observer
 If work is being performed where there is a potential for persons or equipment
to come in contact with energized equipment, a Safety Observer will be
appointed by the contractor to aid in protecting employees and others from
hazards.
11. Amendment and Additional Information
(a) amendments to the method statement: Should any part of this method statement
require amendment or alteration; this must be notified for agreement by all relevant
parties prior to it being enforced.
(b) Communicate method statement:
ensure it is signed by all personnel
Communicate to all relevant parties and
12. Omissions
All omissions in this work methodology will be carried out in accordance with good
construction standards and practices applicable in the Republic of Mozambique.
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