Study Guide
OSHA 30 Construction Introduction to NFPA 70E
Intro to NFPA 70E
•
Introduction to NFPA 70E
Introduction to NFPA 70E (2018)
Topic builds on electrical safety learned in
this course
Employers and workers should reference
NFP 70E when working directly with, or
around electricity
Helps employer comply with OSHA
regulations
�CUCKSAF£Tt'
NFPA
70E
Standard for
Electrical
Safety In the
Workplace'
20.18
Used by OSHA when assessing safety
and health
One hour completion time
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Introduction to NFPA 70E
Introduction to NFPA 70E (2018)
Topic builds on electrical safety learned in
this course
�CUCKSAF£Tt'
NFPA
70E
Employers and workers should reference
Standard for
Electrical
NFP 70E when working directly with, or
around el•-·------------------- -- --..;,;-..
Helps <
regula1
Used b
and he
One hour comp1et1on time
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Introduction to NFPA 70E
Learning Objectives
Upon completion of this training, you will be able to:
NFPA
Recognize the history and purpose of the National Fire
Protection Association (NFPA) and the 2018 NFPA 70E standard
70E
Identify responsibilities and training requirements for Qualified
and Un-qualified persons
,,,.
Recognize what is required to achieve an electrically safe work
condition through an effective safety program
Identify safeguards and controls for work involving electrical
hazards, including the use of personal protective equipment,
labels, warnings, and barricades
Identify host employer and contractor responsibilities required by
NFPA 70E
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Introduction to NFPA 70E
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Overview of NFPA 70E
Why should we care?
Employers: Do you employ or supervise electricians,
electrical or electronic maintenance personnel or
employees who may be exposed to electrical hazards in
their jobs?
Employees: Are you an employee whose job description
fits the above categories>
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Overview of NFPA 70E
Why should we care?
Employers: Do you employ or supervise electricians,
electrical or electronic maintenance personnel or
employees who may be exposed to electrical hazards in
their jobs?
Employee Electrical-related incidents rank #5 (Lockout/Tagout) and
fits the ab #10 (Wiring Methods) on OSHA's top 10 most-coted
v,olat,ons for 2017.
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Introduction to NFPA 70E
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OSHA Regulations
General Duty Clause: employers must provide a safe and
healthful workplace at all times
OSHA regulations for electrical safety:
CFR 1910, General Industry- Subpart S
CFR, 1926, Construction- Subpart K
Regulations are bare minimum law.
O>SIM
NFPA 70E industry consensus standards are "how-to" documents.
OSHA may refer to NFPA 70E when assessing whether an
employer is providing a safe and healthful workplace.
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Introduction to NFPA 70E
�CLICKSAF£TY'
NFPA and NFPA 70E
National Fire Protection Association established in1896 to reduce
fire risks
Today:
Non-profit organization
NFP�
World's leading advocate of fire protection
Researches the causes and effects of fire
Develops consensus standards, codes, and training
NFPA 70E:
First published in 1979 to assist OSHA with electrical safety
Consensus standard
Provides guidance on avoiding shock, arc flash and arc blast
2018 is 11'' edition
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Introduction to NFPA 70E
NEC Versus NFPA 70E
Do you know the difference?
National Electric Code (NEC or NFPA 70)
requirements are:
Intended primarily for those who design, install,
and inspect electrical installations
..
•
�CLICKSAF£TY.
NOT focused on safety-related work practices or
electrical system maintenance, nor directly
related to human safety
Focused on protection of equipment and
property
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Introduction to NFPA 70E
NEC Versus NFPA 70E
NFPA 70E:
Addresses safety of workers whose job
responsibilities involve energized electrical
equipment and systems, with potential exposure to
electrical hazards
Adapted for other workers whose exposure to
electrical hazards may be unintentional or may not
be recognized
Covers installation, removal, inspection, operation,
maintenance, and demolition of electric conductors,
electric equipment, signaling and communications
conductors and equipment, and raceways.
..
Does NOT cover watercraft, automotive, railway
communication equipment, and utility applications
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Introduction to NFPA 70E
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Outline of NFPA 70E
Not just "the arc flash standard"!
NFPA
70E
106 pages
Chapters:
Sbndant for
Eleclriul
Safety In the
Wor1<ploce
Introduction (highly beneficial)
Chapter 1, Safety Related Work Practices
Chapter 2, Safety Related Maintenance Requirements
....
Chapter 3, Safety Requirements for Special Equipment
Divided into articles
Informative annexes:
A through Q
Offer additional guidance
Provide templates for electrical safety program,
lockoutltagout program, and personal protective equipment
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Introduction to NFPA 70E
Chapter 1, Safety-Related Work Practices
Article 100, Definitions
NFPA
Article 105, Application of Safety-Related Work
Practices and Procedures
70E
Article 110, General Requirements of Safety-Related
Work Practices and Procedures
Safety In the
Article 120, Establishing an Electrically Safe Work
Condition
Sbndont for
,.,.
A:
Article 130, Work Involving Electrical Hazards
l:l@
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Introduction to NFPA 70E
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Chapter 2, Safety-Related Maintenance Requirements
Maintenance personnel:
Must be qualified persons
Must maintain equipment in accordance with
manufacturer specifications or consensus
standards
Must use safe work practices
NFPA 708, Recommended Practice for Electrical
Equipment Maintenance:
Referenced in Chapter 2 of NFPA 70E
Mainly applies to safety relating to equipment,
not individual performing maintenance
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Introduction to NFPA 70E
Chapter 3, Safety Requirements for Special Equipment
Batteries and battery rooms
Lasers
Power electronic equipment
Research and development laboratories
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Introduction to NFPA 70E
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Informative Annexes A-Q
Reference annexes:
NFPA
Annex E Electrical Safety Program
70E
Annex G Sample Lockout/fagout [LOTO] Program
Safety In the
Annex C Limits of Approach
Annex H Guidance on Selection of PPC & PPE
Annex Q Human Performance and Workplace
Stanci.d for
A
2011
Electrical Safety
t.il@
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Introduction to NFPA 70E
Informative Annexes A-Q
Reference annexes:
NFPA
70E
Annex C Limits of Approach
Annex E Electrical Safety Program
Annex H (
Annex Q f
Electrical S
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Introduction to NFPA 70E
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Changes to 201 B Edition
2018 edition revisions not as extensive as 2015
NFPA
70E
Legend of change notations:
Text revisions are
a e
/1 symbol before a section indicates that words
within that section were deleted
/1 symbol to the left of a table or figure number
indicates a revision to an existing table or figure.
When a chapter was heavily revised, the entire
chapter is marked throughout with the /1
symbol.
Stanci.d for
Safety In the
A
2011
t.il@
Where one or more sections were deleted, a • is
placed between the remaining sections.
Chapters, annexes, sections, figures, and tables
that are new are indicated with an N.
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Introduction to NFPA 70E
Changes to 2018 Edition
2018 edition revisions not as extensive as 2015
NFPA
70E
Legend of change notations:
Asym,,............_...,...,,......,......_..,_...,..,..,........._________..,.
within
When a chapter was heavily revised, the entire
chapter is marked throughout with the A
symbol.
Where one or more sections were deleted, a • is
placed between the remaining sections.
Chapters, annexes, sections, figures, and tables
that are new are indicated with an N.
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Introduction to NFPA 70E
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Human Factors, Hierarchy of Controls
Human factors in risk assessments:
NFPA
Human error part of the assessment process
Annex Q, Human Performance and Workplace
Electrical Safety, provides guidance
Hierarchy of controls:
Moved from informational note into text of the
standard
First priority must be elimination of hazard.
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70E
Stanci.d for
Safety In the
A
2011
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Introduction to NFPA 70E
New Arc Flash Tables and PPE Guidance
Arc flash risk assessment uses either method:
NFPA
70E
Incident energy analysis
Arc-flash PPE category
Stanci.d for
Electrial
Safely In the
_.,._
New Table 130.S(C):
Previous Table 130.7(C)(1S)(A)(a) was used in
category method to determine if arc flash PPE
was required
A
2011
Determines the likelihood that an arc flash could
occur and renumbered as Table 130.S(C).
Iii®
Can be used with either method of arc flash risk
assessment
Section 130.7(C)(14)(b) was added to provide
guidance on assessing if, and how well, PPE
conforms to standards.
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Introduction to NFPA 70E
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Definitions, Article 120 Changes
Definitions added for fault current and available
fault current
NFPA
Changes made to other terms to make their use
more consistent
Stanci.d for
70E
Article 120 rearranged to present requirements for
establishing an electrically safe work condition in
logical order
Electrial
Safely In the
_.,._
A
2011
Iii®
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Introduction to NFPA 70E
Batteries, Lasers, ESA
-
Article 320 introduces thresholds of SO Vac and
100 Vdc to address the unique situations specific to
batteries and battery rooms.
NFPA
Article 330, which focuses lasers, was extensively
revised to address safety-related maintenance issues
rather than issues associated with laser use.
Stanci.d for
Article 350 introduces the concept of an Electrical
Safety Authority (ESA) for jurisdiction over safety­
related work practices and controls in laboratories.
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70E
Safely In the
A
2011
Iii®
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Introduction to NFPA 70E
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Batteries, Lasers, ESA
-
Article 320 introduces thresholds of SO Vac and
100 Vdc to address the unique situations specific to
batteries and battery rooms.
NFPA
Article 330, which focuses lasers, was extensively
revised to
rather tha
Stanci.d for
70E
Article 35(
Safety Au111111:1,1;�:1a1,1,
related wc-....,================="""""1�
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Electrical Safety Program (ESP)
Does your company have an electrical safety
program?
l•M:
1➔➔i,U
ELECTRICAL �I
Does your ESP include the following?
Safe work practices and procedures that first
emphasize hazard elimination
Host and contract employer responsibilities
Energized electrical work permits
PPE and equipment selection, conformity, use,
andmaintenance
HAZARD
W
Training for both qualified and unqualified
persons
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Introduction to NFPA 70E
•
�CUCKSAF£Tt'
Electrical Safety Program (ESP)
Does your company have an electrical safety
program?
Does your ESP include the following?
Host a,
Energi;
PPE an
andm,
Training for both qualified and unqualified
persons
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Introduction to NFPA 70E
Hazard Elimination
First priority must be hazard elimination.
Many companies have adopted a "no live work"
policy.
However, policy only pertains to intentional work:
Still an inherent danger of unintentional contact
with live electricity
For both qualified and unqualified persons
Hazard awareness training is CRITICAL.
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Introduction to NFPA 70E
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Audit of ESP and Field Work
Electrical Safety Program
"The electrical safety program shall be audited to verify
that the practices and procedures of the electrical
safety program are in compliance with this standard ..
Audits shall be performed at intervals not to exceed 3
years." NFPA 70E 110.1(K)(1)
Field Work
"Field work shall be audited to verify that the
requirements contained in the procedures of the
electrical safety program are being followed. When
auditing determines that the principles and procedures
of the electrical safety program are not being followed,
the appropriate revisions to the training program or
procedures shall be made ... Audits shall be performed
at intervals not to exceed 1 year." NFPA 70E 110.1(K)(2)
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Introduction to NFPA 70E
Audit of ESP and Field Work
Electrical Safety Program
"The electrical safety program shall be audited to verify
that the practices and procedures of the electrical
safety program are in compliance with this standard..
Audits shall be performe
years."NFPA70E110.1(K:,
, ,
Field Work
"Field work shall be audited to verify that the
requirements contained in the procedures of the
electrical safety program are being followed. When
auditing determines that the principles and procedures
of the electrical safety program are not being followed,
the appropriate revisions to the training program or
procedures shall be made... Audits shall be performed
at intervals not to exceed1 year." NFPA70E 110.1(K)(2)
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Introduction to NFPA 70E
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Employer Responsibilities
Employers must:
Establish, document, and implement the safety­
related work practices and procedures required
by NFPA70E
Provide employees with training on practices and
procedures
SAFETY
FIRST
Always Start With
JOB SAFETY
Briefing
More detailed requirements for both host and
contractor employers
NFPA70E stresses the need for joint responsibilities.
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Employer Responsibilities
Establi,
related
by NFP
Provid,
proced
More det,
contracto,
NFPA 70E
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Introduction to NFPA 70E
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Host Employer
Informs contract employers of the following:
"Known hazards of NFPA 70E standard related to
the contract employer's work, might not be
recognized by the contract employer or its
employees" NFPA 70E 110.3(A)(1)
Requirements and results of risk assessments with
respect to hazard risk control
Observed contract employer-related violations of
the NFPA 70E standard
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Host Employer
Informs contract employers of the following:
"Known hazards of NFPA 70E standard related to
the contract employer's work, might not be
recognized by the contract employer or its
,n, ••n ""''"'
employee."""~·
Requirem1
respect to
Observed,
the NFPA
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Introduction to NFPA 70E
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Contract Employer
Ensures:
" ... employees are instructed in the hazards
communicated by the host employer. Instruction
shall be in addition to the basic training required by
this standard." NFPA 70E 110.3(8)(1)
" ... employees follow both the work practices
required by this standard and safety-related work
rules required by the host employer." NFPA 70E
110.3(8)(2)
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Additional Contract Employer Responsibilities
Advise the host employer of the following (see NFPA
70E 110.3(B}(3)):
(2) Hazards identified during the course of work by
contract employer that were not communicated by
the host employer
•
(3) The measures contractor took to correct any
violations reported by the host employer ... and to
prevent such violation from recurring in the future
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c
•
-
" '.': - -
(1) Any unique hazards presented by contract
employer's work
_,.__
'•
I
I\
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Introduction to NFPA 70E
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Additional Contract Employer Responsibilities
Advise the host employer of the following (see NFPA
70E 110.3(B}(3)):
(1) Any unique hazards presented by contract
employer's work
(2) Hazards;,----------------­
contract, Where the host employer has knowledge of hazards
the host, covered by th,s standard that are related to the contract
(3) The meas employer's work, there shall be a documented meeting
violations between the host employer and the contract employer
prevents�-- ________ _
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Illumination
Ensure sufficient illumination for all work tasks
(especially within limited approach boundary).
Never reach blindly into areas.
Do not enter spaces containing electrical hazards
unless illumination is provided that enables to be
performed safely.
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Introduction to NFPA 70E
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Illumination
Ensure sufficient illumination for all work tasks
(especially within limited approach boundary).
Never reach blindly into areas.
Do not enter spaces containing electrical hazards
unless illu,
performec Approach boundaries will be discussed m more detail
later m this course;
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Electrically Safe Work Condition
Lockout/tagout (LOTO)
ESP must include documented procedures.
Energy sources that are not locked out and tagged
out MUST NOT be considered in an electrically safe
work condition.
Safe work practices as though parts were live
Applies to all equipment whether temporary,
permanent, or portable
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Introduction to NFPA 70E
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Audit of LOTO Program and Procedures
Requirements in Article 120
�
-
mm
DO NOT
Audited by a qualified person
At intervals not to exceed 1 year.
Covering at least one lockout/tagout in progress
OPERATE
NFPA 70E 110.1(K)(3):
LOCUDIIUT
The audit shall be designed to identify and
correct deficiencies in the following:
(1) The lockout/tagout program and procedures
(2) The lockout/tagout training
(3) Worker execution of the lockoutltagout
procedure (NFPA 70E 110.1(K)(3)
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Audit of LOTO Program and Procedures
Requirements in Article 120
�
mm
DO NOT
Audited by a qualified person
At intervals not to exceed 1 year.
Covering ,,,+ , ............ ,.. ........ i .......s�,.., ,,..,....,,...,,.., .... , .... ,,,.,,.,..,..,,.,..,.,.
ftD�DITC
NFPA 70E Also refer to Informative Annex G Sample LOTO Program
The a,-.----�---�-�-----===--�
correct deficiencies in the following:
(1) The lockout/tagout program and procedures
(2) The lockout/tagout training
(3) Worker execution of the lockout/tagout
procedure (NFPA 70E 110.1(K)(3)
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Training
An electrical safety program must include training.
Employees must be trained:
In safe work practices and procedures necessary
for their protection
To identify electrical hazards
To understand relationship between electrical
hazards and possible injury
�ov.i\.eo..�
�a'o
:{\!
\�
• -r'"'-'3
Type of training must be either classroom, on-the­
job, or a combination of the two.
All training must be documented.
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Retraining
NFPA 70E 110.2(A)(3) states that retraining must be
performed "at intervals not to exceed 3 years" or if any
of the following conditions exist:
(1) Employee non-compliance with the safety-related
work practices.
(2) Changes in technology, equipment, procedures
(3) Employee tasks performed less than once per year.
(4) Safety-related work practices not normally used by
the employee during regular job duties
(5) Employee job duties change
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Introduction to NFPA 70E
•
�CUCKSAF£Tt'
LOTO Training
For employees involved in or affected by LOTO:
LOTO procedures
Responsibilities in the execution of the
procedures
Employees must also demonstrate proficiency.
Retraining required:
At intervals not to exceed 3 years
When employee n o n -compliance is observed
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Emergency Response Training
Contact Release
"Employees exposed to shock hazards and those
responsible for the safe release of victims from
contact with energized electrical conductors or
circuit parts shall be trained in methods of safe
release. Refresher training shall occur annually."
NFPA 70E 110.2(()(1)
First Aid, Emergency Response, and Resuscitation
"Employees responsible for responding to medical
emergencies shall be trained in first aid," CPR, and
emergency procedures." NFPA 70E 110.2(C)(2)(a)
" ... In the use of an automated external defibrillator
(AED) if an employer's emergency response plan
includes the use of this device." NFPA 70E 110.2(C)
(2)(c)
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Introduction to NFPA 70E
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Unqualified Persons Training
"Unqualified persons shall be trained in, and be
familiar with, any electrical safety-related practices
necessary for their safety." NFPA 70E 110.2(A)(2)
Not permitted to enter spaces designated for
qualified employees only, unless the electric
conductors and equipment involved are in an
electrically safe work condition.
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Unqualified Persons Training
"Unqualified persons shall be trained in, and be
familiar with, any electrical safety-related practices
necessary for their safety." NFPA 70E 110.2(A)(2)
Not permitted to enter spaces designated for
qualified ______.__.__.._..._...________
conductor
electrically
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Qualified Persons Training
Training requirements include:
Safe work procedures and precautionary techniques
Selecting and using proper PPE, including arc flash
insulating and shielding materials, insulated tools,
and test equipment
Identifying exposed energized parts from other
parts
Determining nominal voltage of live parts
Understanding safe approach distances
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Qualified Persons Training
Training requirements include:
Safe work procedures and precautionary techniques
Selecting and using proper PPE, including arc flash
insulating and shielding materials, insulated tools,
and test e•
ldentifyini
parts
Determini
Understar
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�CUCKSAF£Tt'
Qualified Persons
Only qualified persons are allowed to perform tasks such as testing, troubleshooting,
and voltage measuring within the limited approach boundary of energized electrical
conductors or circuit parts operating at SO volts or more, or where an electrical hazard
exists.
Licensed electricians DO NOT automatically meet NFPA 70E definition of a qualified
person.
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Qualified Person Criteria
Qualified person designation:
Task AND equipment specific
Includes maintenance personnel
Compliance:
Employer must determine through routine
supervision and annual inspection (at a
minimum)
Check is NFPA 70E requirement
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Qualified Person Knowledge and Skills
Pick the 5 items that a qualified person must be able to know or perform.
D
D
D
D
D
D
D
D
Safe work procedures and precautionary techniques around electricity
NEC code violations
Selecting and using proper PPE, including arc flash insulating and shielding
materials, insulated tools, and test equipment
PPE repair
Identification of exposed energized parts from other parts
Determining the nominal voltage of live parts
Designing electrical switchgear
Understanding safe approach distances
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Qualified Person Knowledge and Skills
Pick the 5 items that a qualified person must be able to know or perform.
� Safe work procedures and precautionary techniques around electricity
D
D
D
D
D
D
D
NEC code violations
Selecting and using proper PPE, including arc flash insulating and shielding
materials, insulated tools, and test equipment
PPE repair
Identification of exposed energized parts from other parts
Determining the nominal voltage of live parts
Designing electrical switchgear
Understanding safe approach distances
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Qualified Person Knowledge and Skills
Pick the 5 items that a qualified person must be able to know or perform.
D
�
D
D
D
D
D
D
Safe work procedures and precautionary techniques around electricity
NEC code violations
Selecting and using proper PPE, including arc flash insulating and shielding
materials, insulated tools, and test equipment
PPE repair
Identification of exposed energized parts from other parts
Determining the nominal voltage of live parts
Designing electrical switchgear
Understanding safe approach distances
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Qualified Person Knowledge and Skills
Pick the 5 items that a qualified person must be able to know or perform.
D
0
0
0
0
0
0
Safe work procedures and precautionary techniques around electricity
NEC code violations
Selecting and using proper PPE, including arc flash insulating and shielding
materials, insulated tools, and test equipment
PPErepair
Identification of exposed energized parts from other parts
Determining the nominal voltage of live parts
Designing electrical switchgear
Understanding safe approach distances
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•
Introduction to NFPA 70E
�CUCKSAF£Tt'
Qualified Person Knowledge and Skills
Pick the 5 items that a qualified person must be able to know or perform.
D
D
D
�
D
D
D
D
Safe work procedures and precautionary techniques around electricity
NEC code violations
Selecting and using proper PPE, including arc flash insulating and shielding
materials, insulated tools, and test equipment
PPErepair
Identification of exposed energized parts from other parts
Determining the nominal voltage of live parts
Designing electrical switchgear
Understanding safe approach distances
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27
•
�CUCKSAF£Tt'
Introduction to NFPA 70E
Qualified Person Knowledge and Skills
Pick the 5 items that a qualified person must be able to know or perform.
D
D
D
D
0
0
0
Safe work procedures and precautionary techniques around electricity
NEC code violations
Selecting and using proper PPE, including arc flash insulating and shielding
materials, insulated tools, and test equipment
PPE repair
Identification of exposed energized parts from other parts
Determining the nominal voltage of live parts
Designing electrical switchgear
Understanding safe approach distances
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•
Introduction to NFPA 70E
�CUCKSAF£Tt'
Qualified Person Knowledge and Skills
Pick the 5 items that a qualified person must be able to know or perform.
D
D
D
D
0
Safe work procedures and precautionary techniques around electricity
NEC code violations
Selecting and using proper PPE, including arc flash insulating and shielding
materials, insulated tools, and test equipment
PPE repair
Identification of exposed energized parts from other parts
� Determining the nominal voltage of live parts
0
0
Designing electrical switchgear
Understanding safe approach distances
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28
•
�CUCKSAF£Tt'
Introduction to NFPA 70E
Qualified Person Knowledge and Skills
Pick the 5 items that a qualified person must be able to know or perform.
D
D
D
D
D
D
0
Safe work procedures and precautionary techniques around electricity
NEC code violations
Selecting and using proper PPE, including arc flash insulating and shielding
materials, insulated tools, and test equipment
PPE repair
Identification of exposed energized parts from other parts
Determining the nominal voltage of live parts
Designing electrical switchgear
Understanding safe approach distances
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•
Introduction to NFPA 70E
�CUCKSAF£Tt'
Qualified Person Knowledge and Skills
Pick the 5 items that a qualified person must be able to know or perform.
D
D
D
D
D
D
D
Safe work procedures and precautionary techniques around electricity
NEC code violations
Selecting and using proper PPE, including arc flash insulating and shielding
materials, insulated tools, and test equipment
PPE repair
Identification of exposed energized parts from other parts
Determining the nominal voltage of live parts
Designing electrical switchgear
Understanding safe approach distances
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Certified Electrical Safety Worker (CESW)
NFPA-issued certification for electricians
Provides evidence of competence in the NFPA 70E
standard
3-hour, 100-question, open-book exam
Good for 3 years
$500 investment ($350 for exam, $150 to be
recertified after 3 years)
(WEii7
U!!:!Ll
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•
�CUCKSAF£TY.
Introduction to NFPA 70E
Work Involving Electrical Hazards
Protection from electric shock and arc flash
Electrical hazard elimination is core element in any
ESP
Cases where electrical equipment cannot be de­
energized before work on or around the
equipment begins:
Introduces additional risk, increased hazards
Infeasible due to equipment's design
Exposure to electric shock and arc flash greatly
increases, requiring development and
implementation of a risk assessment
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30
•
�CUCKSAF£Tt'
Introduction to NFPA 70E
Work Involving Electrical Hazards
Protection from electric shock and arc flash
Electrical hazard elimination is core element in any
ESP
Cases where electrical equipment cannot be de­
energized
equipmen Cases where energized electrical work may be necessary
lntrod, include work on of hfe--support equipment and emer­
gency alarms, and the troubleshooting of electrical
lnfeasil components in a hve-only state.
Exposu
increases, requiring development and
implementation of a risk assessment
-
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Shock and Arc Flash Risk Assessments
Overview
Determines if any shock or arc flash hazards exists
Identifies procedures to mitigate (reduce) hazards
Performed by qualified person
Basic, but critical, questions:
Does a shock or arc flash hazard exist?
What is the likelihood and severity of the
hazard?
Are additional protective measures are required,
including the use of PPE?
Will workers be exposed directly or indirectly?
What is the potential for human error?
What authorization is necessary'
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Shock and Arc Flash Risk Assessments
Overview
Determines if any shock or arc flash hazards exists
Identifies procedures to mitigate (reduce) hazards
Performe h,, ,,.., , .... ,;-,:;,......, ...........,.,,...,,
Basic, but
Does'-----------------===...,
What is the likelihood and severity of the
hazard?
Are additional protective measures are required,
including the use of PPP
Will workers be exposed directly or indirectly?
What is the potential for human error?
What authorization is necessary'
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•
�CUCKSAF£Tt'
Shock and Arc Flash Risk Assessments
Additional determinations
Voltage to which personnel will be exposed
Limited, restricted, and arc flash boundaries
Personal and other protective equipment
requirements:
Protection against shock
Use within the arc flash boundary
Safety-related work practices
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Shock and Arc Flash Risk Assessments
Additional determinations
Voltage towhich personnelwill be exposed
Personal a
requireme
Protect
Usewi1
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Energized Electrical Work Permit
Required forwork on energized electrical
equipment:
Operating at or greater than SO volts
Cannot be placed in electrically safework
condition
When:
1. Workwill be performedwithin the restricted
approach boundary, or
2. An employeewill be interactingwith equipment
without exposed conductors or circuit parts, but
with an increased likelihood of an arc flash injury
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Energized Electrical Work Permit
Required for work on energized electrical
equipment:
Operating at or greater than 50 volts
Cannot be placed in electrically safe work
conditi
Electrical conductors and rncu,t parts operating at less
When:
than 50 volts may not need to be in a de-energ12ed state
1. Workv when performing work, if ,t ,s determined that there will
approc be no increased exposure to electrical burns or to
2. An em1 explos,on due to electrical arcs.
withou _
_
with an increased likelihood of an arc flash injury
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Elements of a Work Permit
A energized electrical work permit must include
(first 5 of 9):
1. (Description of the circuit and equipment to be
worked on and their location
2. Description of the work to be performed
3. Justification for why the work must be performed in
an energized condition
4. Description of the safe work practices to be
employed
5. Results of the shock risk assessment
Continued..
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Elements of a Work Permit
A energized electrical work permit must include
(first 5 of 9):
1.
2. Descriptio
3. Justificatic
an energi:;;
4.
5. Results of the shock risk assessment
Continued..
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Elements of a Work Permit
A energized electrical work permit must include
(last 4 of 9):
6. Results of the arc flash risk assessment
7. Means employed to restrict the access of unqualified
persons from the work area
8. Evidence of completion of a job briefing, including a
discussion of any job-specific hazards
9. Energized work approval (authorizing or
responsible management, safety officer, or owner,
etc.) signature(s)
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Arc Flash
Results from high-voltage electricity jumping
through air to ground against another conductor
Can vaporize metal or other materials in its path
Releases:
Thermal radiation
Heat
Bright, intense light
Causes severe harm, burns, blindness
Temperatures as high 35,000° F
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Arc Flash
Results from high-voltage electricity jumping
through air to ground against another conductor
Can vaporize metal or other materials in its path
Releases:
Therm;
Heat
Bright,
Temperatures as high 35,000° F
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Arc Flash Risk Assessment and Boundary
Arc flash risk assessment:
Determines if electrical system has sufficient
energy to cause a thermal burn from an arcing
fault
Determines probability and severity
Arc flash boundary:
Identifies when PPE will be needed
Distance from the potential arcing fault point to
where a person would receive a second-degree
burn
Body part inside the arc flash boundary must be
protected
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•
�CUCKSAF£Tt'
Limits of Approach Boundaries
Three boundaries:
Arc flash boundary
Limited approach
boundary (shock)
Restricted approach
boundary (shock)
Refer to Annex C.
Crossing limits of approach
boundaries increases the
chance for injury and
electrocution.
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Limits of Approach Boundaries
Three boundaries:
Arc flash boundary
chance for injury and
electrocution.
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Limited and Restricted Approach Boundaries
Who can cross each boundary?
limited approach boundary:
Qualified person (unescorted)
Unqualified person ESCORTED
by qualified person
Restricted approach boundary:
Qualified person ONLY
Proper PPE must be worn
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Limited and Restricted Approach Boundaries
Who can cross each boundary?
limited approach boundary:
Restricted ,
Qualifi, •
Proper
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•
�CUCKSAF£Tt'
Three Limits of Approach
Select the 3 limits of approach boundaries.
D
0
0
0
0
Arc flash boundary
Structured boundary
limited approach boundary
Common boundary
Restricted approach boundary
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Introduction to NFPA 70E
•
�CUCKSAF£Tt'
Three Limits of Approach
Select t he 3 limitsof approach boundaries.
�Arcflash boundary
0
Q
Q
Q
S tructured boundary
Limi ted approach boundary
Common boundary
Restricted approach boundary
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Introduction to NFPA 70E
•
�CUCKSAF£Tt'
Three Limits of Approach
Select t he 3 limitsof approach boundaries.
D
0
0
0
Arcflash boundary
S tructured boundary
Limi ted approach boundary
Common boundary
Restricted approach boundary
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Introduction to NFPA 70E
•
�CUCKSAF£Tt'
Three Limits of Approach
Select t he 3 limitsof approach boundaries.
D
0
Arcflash boundary
S tructured boundary
� Limi ted approach boundary
0
0
Common boundary
Restricted approach boundary
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Introduction to NFPA 70E
•
�CUCKSAF£Tt'
Three Limits of Approach
Select t he 3 limitsof approach boundaries.
D
0
0
0
Arcflash boundary
S tructured boundary
Limi ted approach boundary
Common boundary
Restricted approach boundary
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41
•
�CUCKSAF£Tt'
Introduction to NFPA 70E
Three Limits of Approach
Select the 3 limits of approach boundaries.
D
0
0
0
Arc flash boundary
Structured boundary
Limited approach boundary
Common boundary
� Restricted approach boundary
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Introduction to NFPA 70E
�CUCKSAF£Tt'
_____
........
�--_.....,
_
.......,.
_
---.._ ..__ .._
________
-----·-� _______
--A.warning
Equipment Labels
...,.
..___�'"
Limits of approach information
Boundary distances
:-:
Personal protective equipment
Other safety information
_.,
NFPA 70E, Section 130.S(H) - Owners of non-dwelling electrical equipment
which is "likely to require examination, adjustment, servicing, or maintenance
while energized" must mark such equipment with a label, containing:
Nominal system voltage
Arc flash boundary
At least one of the following:
Incident energy working distance or arc flash PPE
category
Minimum arc rating of clothing
Site-specific level of PPE
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42
•
�CUCKSAF£Tt'
Introduction to NFPA 70E
Equipment Labels
Limits of approach information
Boundary distances
Personal protective equipment
NFPA 70E,
which is "I , . .
while ene,
=-==-_ e_ --=======
ltag
Nomina�l-sys""." te_m_ vo_ '.'."
Arc flash boundary
At least one of the following:
Incident energy working distance or arc flash PPE
category
Minimum arc rating of c lothing
Site-specific level of PPE
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Alerting Techniques
Safety signs and tags must meet local, state, or
federal codes and standards.
Barricades or physical obstructions (e.g., tape, cones,
or A -frame-type structures):
Must be used with safety signs
Should be made with non-conductive materials
(t•M:!rlii•j
ELECTRICAL �'1
HAZARD W
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Alerting Techniques
Safety signs and tags must meet local, state, or
federal codes and standards.
Barricades or physical obstructions (e.g., tape, cones,
or A-frame-type structures):
Must b
Should
nc1,1nn;AL
HAZARD
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W
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Introduction to NFPA 70E
�CUCKSAF£Tt'
PPE and Equipment
PPE standards
Table 130.7(()(14) includes standards for:
Arc rated clothing, apparel
Eye, head, hand, arm, foot, face, fall protection
Insulated tools and materials
PPE must meet all state, local, and federal codes and requirements.
Must accompany all PPE (see NFPA 70E 130.7(14)(c)):
(1) Name of manufacturer
(2) Product performance standards to which the product conforms
(3) Arc rating where appropriate for the equipment
(4) One or more identifiers such as model, serial number,
lot number, or traceability code
(5) Care instructions
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�CUCKSAF£Tt'
Introduction to NFPA 70E
PPE and Equipment
PPE standards
Table 130.7(()(14) includes standards for:
Arc rated clothing, apparel
PPE must,
Must acco
(2) Product performance standards to which the product conforms
(3) Arc rating where appropriate for the equipment
(4) One or more identifiers such as model, serial number,
lot number, or traceability code
(5) Care instructions
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Introduction to NFPA 70E
�CUCKSAF£Tt'
PPE Standards Conformity
Suppliers and manufacturers of PPE must assess their
PPE for conformity with standards.
Employers and employees need to be aware of how
assessments are done when purchasing or selecting
PPE.
1 of 3 methods are used for performing a
conformity assessment.
For more information, see:
ANSI I /SEA 125, American National Standard for
Conformity Assessment of Safety and Personal
Protective Equipment (examples)
Informative Annex H
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�CUCKSAF£Tt'
Introduction to NFPA 70E
PPE Standards Conformity
0
Suppliers,
PPE for co Three methods of conformity (NFPA 70E 130 7(O(14)(b)
Employers (1) Self-declaration with a Supplier's Declaration of
Conformity
assessmen
PPE.
(2) Self-declaration under a reg,stered quality
management system and product testing by an
1 of 3 met
accredited laboratory and a Supplier's Declaration of
conformi�
Conformity
For more i
(3) Cert1ficat1on by an accredited independent third­
ANSI/I
party certif1cat1on organizat,on
Confor
.. .
Informative Annex H
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Arc Flash PPE Selection
Two methods
Incident energy analysis
Complex
Used to determine arc flash boundaries and PPE
Table 130.S(G) used to select arc-rated clothing
PPE category
Easier to use
Tables in 130.7(()(15) used to determine arc-flash
PPE category
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Arc Flash PPE Category Method
Arc-flash PPE categories
Category 1
4 caVcm'
Category 2
8 caVcm'
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Category 3
25 caVcm'
Category 4
40 caVcm'
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Test Instruments, Equipment, and Accessories
Must meet rating and design requirements
See Underwriters Laboratories (UL) 61010-1, Safety
Requirements for Electrical Equipment for
Measurement, Control, and Laboratory Use- Part 1:
General Requirements for voltage measurement
and test instruments used on electrical systems at or
below 1,000 volts.
Employers must follow manufacturer
recommendations and specifications for inspecting
and calibrating test equipment.
Verify the functioning of instruments BEFORE and
AFTER any test, when testing for the absence of
voltage on conductors or circuit parts that operate
at SO volts or more.
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Insulated Equipment
Includes items made of rubber:
Mats
Gloves
Sleeves
CourtM}' of Salisbury Electricdl Safety LLC.
Blankets
Aprons
Only use insulated tools that are rated for voltage
inside the limited approach boundary.
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Introduction to NFPA 70E
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Inspection and Testing
All insulating tools, PPE, and other
equipment must be inspected:
Before each day's use
Immediately following any incident
suspected of causing damage
PPE standards, Table 130.7(()(14):
Gloves inspected and air tested prior to
use, and certified before first issue and
every 6 months.
Blankets/sleeves certified before first
issue and every 12 months
Courte-sy of S.,lisbury Electrical Safety LLC.
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�CUCKSAF£Tt'
Introduction to NFPA 70E
Inspection and Testing
All insulating tools, PPE, and other
equipment must be inspected:
Immediate!
suspected c
PPE standards,IWl!lalll,ll�;W!U..IW\ll
Gloves inspeaea ano a1r1:esi:eo pnor to
use, and certified before first issue and
every 6 months.
Blankets/sleeves certified before first
issue and every 12 months
Courte-sy of Scllisbury Electrical Sclfety LLC.
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Introduction to NFPA 70E
�CUCKSAF£Tt'
Summary
This topic has covered NFPA 70E (2018) requirements:
Development, implementation, maintenance, and
evaluation of an effective electrical safety program
Implementation of safety related work practices and
procedures
Establishment of an electrically safe work condition,
with first emphasis on hazard elimination, prior to
beginning work
NFPA
70E
Sbndard for
Electr1cal
Safety In the
Wor1lplace
2011
Creation of effective plans and procedures for work
involving electrical hazards, AND
Training of all qualified and unqualified persons in
hazard recognition and safety-related work
practices
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�CUCKSAF£Tt'
Introduction to NFPA 70E
For More Information
National Fire Protection Association (NFPA)
https//www.nfpa.org/:
Access NFPA 70E standard
https//www.nfpa.org/codes-and-standards/all­
codes-and-standards/list-of-codes-and­
standards/detaiPcode= 70E
NFP�
Purchase NFPA 70E Handbook
https//cataloq.nfpa.orq/NFPA-70E-Handbook­
for-Electrical-Safety-in-the-Workplace­
P15696.aspx>order src=E339
National Electrical Contractors Association (NECA)
https//www.necanet.org/
�
NEC
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https://www.nfpa.org/
https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and­
standards/detaii ?code=70E
https://catalog.nfpa.org/NFPA-70E-Handbook-for-Electrical-Safety-in-the-Workplace­
P15696.aspx?order src=E339
https://www.nee anet.arg/
Introduction to NFPA 70E
•
�CUCKSAF£TY.
Conclusion
NFPA 70E is designed to protect the worker from
electrical hazards
Employer/employee responsibility
Nothing is more important than your personal
safety and co-workers
Ensure that you are always working in a safe
manner and environment.
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NFPA
70E
Sbndltdlor
Electrlal
s.tety In the
Wor1q>loc:o
2011
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�CUCKSAF£Tt'
Introduction to NFPA 70E
End of Topic
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Introduction to NFPA 70E
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