IMPLEMENTING THE IMPLEMENTING THE
NEW ELECTRICAL NEW ELECTRICAL
SAFETY SAFETY
REQUIREMENTS REQUIREMENTS
Paul A Zoubek, CSP, CIH Paul A Zoubek, CSP, CIH Occupational Services, Inc.
Occupational Services, Inc.
San Diego, CA San Diego, CA 619-619-861861--06120612
[email protected] OCCUPATIONAL
SERVICES, INC.
2
BACKGROUND BACKGROUND
►►Update to 29CFR1910 Subpart S Electrical Update to 29CFR1910 Subpart S Electrical Safety Standards
Safety Standards
►►First update since 1981First update since 1981
►►Reliance on NFPA 70E, STANDARD FOR Reliance on NFPA 70E, STANDARD FOR ELECTRICAL SAFETY REQUIREMENTS ELECTRICAL SAFETY REQUIREMENTS
FOR EMPLOYEE WORKPLACES FOR EMPLOYEE WORKPLACES
3
4
BACKGROUND BACKGROUND
►►Areas to be addressedAreas to be addressed
Electrical InstallationsElectrical Installations
Work Practices for working on live equipmentWork Practices for working on live equipment
Safety Related Maintenance RequirementsSafety Related Maintenance Requirements
5
PRESENTATION OBJECTIVES PRESENTATION OBJECTIVES
►►Understand the revised electrical safety Understand the revised electrical safety
requirements and how they will impact the requirements and how they will impact the
management and engineering control of management and engineering control of
electrical hazards in general industry.
electrical hazards in general industry.
6
PRESENTATION OBJECTIVES PRESENTATION OBJECTIVES
►►Describe the components of the revised Describe the components of the revised Subpart S Electrical Safety Standard and Subpart S Electrical Safety Standard and
illustrate the similarities and differences illustrate the similarities and differences
between the existing and new regulation.
between the existing and new regulation.
7
►►Apply the revised requirements in the Apply the revised requirements in the industrial setting.
industrial setting.
PRESENTATION OBJECTIVES
8
►►Requirements Applying to both existing and Requirements Applying to both existing and new regulation.
new regulation.
►►Additional requirements per NFPA 70EAdditional requirements per NFPA 70E
►►How companies are complying.How companies are complying.
PRESENTATION FORMAT
SAFETY REQUIRMENTS SAFETY REQUIRMENTS
FOR ELECTRICAL FOR ELECTRICAL
INSTALLATIONS
INSTALLATIONS
10
ELECTRICAL INSTALLATIONS ELECTRICAL INSTALLATIONS
►►General RequirementsGeneral Requirements
OSHAOSHA
►►General Industry 1910.302General Industry 1910.302--1910.3081910.308
►►Construction 1926.402Construction 1926.402--1926.408 1926.408
NFPA: NFPA:
►►NFPA 70E, Chapter 4, Articles 400NFPA 70E, Chapter 4, Articles 400--450450
11
ELECTRICAL INSTALLATIONS ELECTRICAL INSTALLATIONS
►►General RequirementsGeneral Requirements
OSHA & NFPA (similarities)OSHA & NFPA (similarities)
►►Electrical InsulationElectrical Insulation
►►Heating Heating
►►ArcingArcing
►►MarkingMarking
12
MARKING & IDENTIFICATION MARKING & IDENTIFICATION
Markings required by OSHA
13
Electrical Panel Electrical Panel
PNL Designation Circuit Breaker Identification Circuit Breaker Numbers
14
Marking of Wires
Marking of Wires
15
►►General RequirementsGeneral Requirements
OSHA & NFPA (Similarities)OSHA & NFPA (Similarities)
►►WorkspaceWorkspace
Requirements for Requirements for << 600 Volts600 Volts
Requirements for >600 VoltsRequirements for >600 Volts
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
16
Energized Parts
Energized Parts Energized
Parts
Non-Energized Parts
Guard (wood or plasterboard)
3’ 3’
3’
Workspace about low voltage Workspace about low voltage
equipment
equipment
17
Energized Parts
Energized Parts Energized
Parts
Energized Parts
4’
3’
0-150 Volts
151-600 Volts
Workspace about low voltage
equipment
18
Workspace
Workspace - - 600 V 600 V
4’
19
Energized Parts
Non- Energized
Parts 8’
>75 kV Energized
Parts
Non-Energized Parts 6’
25,001 Volts-75kV
Workspace about high voltage
equipment
20
Workspace
Workspace - - 26 kV 26 kV
6’
21
Elevation of Unguarded Elevation of Unguarded
Energized Parts Above Energized Parts Above
Workspace Workspace
Nominal Voltage Minimum Elevation
601-7500 8’ 6”
7501-35,000 9’
>35 kV 9’+0.37”/kV above 35 kV
22
►►General RequirementsGeneral Requirements
OSHA & NFPA OSHA & NFPA (Differences)(Differences)
►►NFPANFPA
Requirements for Interrupting Rating Requirements for Interrupting Rating
Requirements for Circuit ImpedanceRequirements for Circuit Impedance
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
23
►►
Impedance Impedance
Impede Impede : to slow the movement. : to slow the movement.
Grounding conductor must have low Grounding conductor must have low impedance to trip a circuit or fuse.
impedance to trip a circuit or fuse.
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
24
Impedance Equations Impedance Equations
Z=R
Hot+R
GroundWhere: Z is Impedance (Ohms) R
Hotis Resistance of
Ungrounded Conductor (Ohms) R
groundis Resistance of
Grounding Conductor (Ohms)
25
Impedance Equations Impedance Equations
I=V/Z
Where: Z is Impedance (Ohms) V is Voltage of System
I is Current (Amps)
26
A 120 V outlet has been rated at 0.25 ohm over the hot conductor but 5.75 ohm over the grounding conductor. A 30 amp circuit
breaker has been installed on the circuit. Will the circuit breaker trip if it detects a problem?
Example 1
Example 1
27
Example 1 (Answer) Example 1 (Answer)
Z=6 Ohm I=20 amps
Will the circuit breaker trip if it detects a problem?
NO! 20 amps < 30 amps, therefore
the circuit breaker will NOT trip.
28
►►Wiring protection & designWiring protection & design
OSHA & NFPA (Similarities)OSHA & NFPA (Similarities)
►►Identification of conductorsIdentification of conductors
►►Polarity of connectionsPolarity of connections
►►Grounding MethodsGrounding Methods
SystemSystem
EquipmentEquipment
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
29
Ungrounded Conductor
Grounded Conductor
Grounding Conductor
30
Equipment Grounding Conductor
Equipment Grounding Conductor
31
►►Wiring Protection & DesignWiring Protection & Design
OSHA & NFPA OSHA & NFPA (Differences)(Differences)
►►NFPANFPA
GFCI protection for personnel inGFCI protection for personnel in
►►BathroomsBathrooms
►►RooftopsRooftops
►►KitchensKitchens
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
32
GFCI GFCI
33
►►Wiring Protection & DesignWiring Protection & Design
►►OSHA & NFPA OSHA & NFPA (Differences)(Differences)
NFPANFPA
►►Outlet devices shall not have an Outlet devices shall not have an
ampere rating less than the load to be ampere rating less than the load to be
services.
services.
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
34
A receptacle is rated at 20
amperes. The circuit is rated at 15 amperes. Are we in compliance
with the requirements for outlet devices?
Yes or No
Example 2 Example 2
No
35
►►Hazardous LocationsHazardous Locations
OSHA & NFPA (Similarities)OSHA & NFPA (Similarities)
►►Class I-Class I-Flammable LiquidsFlammable Liquids
►►Class IIClass II--Combustible DustsCombustible Dusts
►►Class IIIClass III--Combustible FibersCombustible Fibers
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
36
►►Hazardous LocationsHazardous Locations
OSHA & NFPA (Similarities)OSHA & NFPA (Similarities)
►►Division 1Division 1-Conditions will be present-Conditions will be present
►►Division 2Division 2--Conditions may be presentConditions may be present
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
37
Class I, Division 1
Class I, Division 1
38
Example 3 Example 3
What is the Proper Classification for a storage room, which will
contain closed drums of chemical product containing Acetone and Isopropyl Alcohol (OSHA
Classification)?
39
Example 3 (Answer) Example 3 (Answer)
Class: I
Division: 2
40
►►Hazardous LocationsHazardous Locations
OSHA & NFPA OSHA & NFPA (Differences)(Differences)
►►NFPA now reclassified Class I NFPA now reclassified Class I divisionsdivisions into into
“zones”
“zones”
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
41
ELECTRICAL INSTALLATIONS ELECTRICAL INSTALLATIONS
►►Class I, Zone OClass I, Zone O
Ignitable concentrations of flammable gases Ignitable concentrations of flammable gases and vapors are present continuously
and vapors are present continuously
Examples:Examples:
►►Tanks which contain flammable liquidsTanks which contain flammable liquids
►►Spraying or coating enclosuresSpraying or coating enclosures
►►Open vessels containing flammable liquidsOpen vessels containing flammable liquids
42
Class I, Zone 0 (inside tank)
Class I, Zone 0 (inside tank)
43
ELECTRICAL INSTALLATIONS ELECTRICAL INSTALLATIONS
►►Class I, Zone 1Class I, Zone 1
Ignitable concentrations of flammable gases Ignitable concentrations of flammable gases and vapors are likely to be present under
and vapors are likely to be present under normal operating conditions
normal operating conditions
May exist because of repair or maintenance or May exist because of repair or maintenance or because of leakage
because of leakage
Locations adjacent to Class I, Zone 0 Locations adjacent to Class I, Zone 0
44
ELECTRICAL INSTALLATIONS ELECTRICAL INSTALLATIONS
►►Class I, Zone 1Class I, Zone 1
Examples:Examples:
►►Areas where flammable liquids are Areas where flammable liquids are transferred from one container to transferred from one container to
another another
►►Adequately vented drying roomsAdequately vented drying rooms
45
Class I, Zone 1 (outside tank)
Class I, Zone 1 (outside tank)
46
ELECTRICAL INSTALLATIONS ELECTRICAL INSTALLATIONS
►►Class I, Zone 2Class I, Zone 2
Ignitable concentrations of flammable gases Ignitable concentrations of flammable gases and vapors are NOT likely to be present under and vapors are NOT likely to be present under
normal operating conditions normal operating conditions
Flammable liquids are normally confined to Flammable liquids are normally confined to closed containers
closed containers
Locations adjacent to Class I, Zone 1 locations Locations adjacent to Class I, Zone 1 locations
47
ELECTRICAL INSTALLATIONS ELECTRICAL INSTALLATIONS
►►Class I, Zone 2Class I, Zone 2
Examples:Examples:
►►Flammable liquids or flammable gases Flammable liquids or flammable gases are used, but would become hazardous are used, but would become hazardous
only in the event of an accident or only in the event of an accident or
unusual operating condition unusual operating condition
48
Example 4 Example 4
What is the Proper Classification for a storage room, which will
contain closed drums of chemical product containing Acetone and Isopropyl Alcohol (NFPA
Classification)?
49
Example 4 (Answer) Example 4 (Answer)
Class: I
Zone: 2
50
►►Hazardous LocationsHazardous Locations
OSHA & NFPA OSHA & NFPA (Differences)(Differences)
►►Equipment Operating Temperature Equipment Operating Temperature Requirements for Class I equipment Requirements for Class I equipment
ELECTRICAL INSTALLATIONS
ELECTRICAL INSTALLATIONS
51
Temperature Classification of Temperature Classification of
Class I Equipment Class I Equipment
<85 C<85 C T6T6
<<100 C100 C T5T5
<<135 C135 C T4T4
<<200 C200 C T3T3
<<300 C300 C T2T2
<450 C<450 C T1T1
Max. Surface Max. Surface
Temperature Temperature Temperature
Temperature Class
Class
52
Electrical Installations NFPA vs. OSHA
OSHA NFPA
Reference 1910.301-
308
NFPA 70E, Chapter 4 Markings & Identification √ √
Workspace √ √
Impedance requirements √
Polarity & Grounding √ √
GFCI for restrooms & rooftops √ Hazardous Locations Class I
“Divisions”
Class I
“Zones”
53
What companies are doing for What companies are doing for
compliance (Electrical compliance (Electrical
Installations) Installations)
►►Ensure equipment installation complies Ensure equipment installation complies with NFPA 70E
with NFPA 70E
►►Ensure equipment modification Ensure equipment modification complies with NFPA 70E
complies with NFPA 70E
SAFE WORK SAFE WORK
PRACTICES
PRACTICES
55
SAFETY RELATED WORK SAFETY RELATED WORK
PRACTICES PRACTICES
►►General RequirementsGeneral Requirements
OSHAOSHA
►►General Industry 1910.331General Industry 1910.331--1910.3601910.360
►►Construction 1926.415Construction 1926.415-1926.417 -1926.417
NFPA: NFPA:
►►NFPA 70E, Chapter 1, Articles 100NFPA 70E, Chapter 1, Articles 100--130130
56
►►Working on or near energized electrical Working on or near energized electrical parts
parts
OSHA & NFPA (similarities) OSHA & NFPA (similarities)
►►Employees may work with on live energized Employees may work with on live energized electrical equipment IF it meets the following electrical equipment IF it meets the following criteria:
criteria:
SAFETY RELATED WORK SAFETY RELATED WORK
PRACTICES
PRACTICES
57
WORKING ON LIVE PARTS WORKING ON LIVE PARTS
(OSHA & NFPA) (OSHA & NFPA)
►►Increased or additional hazards include Increased or additional hazards include interruption of life support equipment, interruption of life support equipment,
deactivation of emergency alarms, deactivation of emergency alarms,
shutdown of hazardous location shutdown of hazardous location
ventilation systems, or removal of ventilation systems, or removal of
illumination for an area.
illumination for an area.
58
WORKING ON LIVE PARTS WORKING ON LIVE PARTS
(OSHA & NFPA) (OSHA & NFPA)
►► Because of infeasibility due to equipment Because of infeasibility due to equipment design or operational limitations including design or operational limitations including
testing of electrical circuits that can only be testing of electrical circuits that can only be
performed with the circuit energized and work performed with the circuit energized and work
on circuits that form an integral part of a on circuits that form an integral part of a continuous industrial process that would continuous industrial process that would
otherwise need to be completely shut down in otherwise need to be completely shut down in
order to permit work on one piece of order to permit work on one piece of
equipment.
equipment.
59
WORKING ON LIVE PARTS WORKING ON LIVE PARTS
(OSHA &NFPA ) (OSHA &NFPA )
►►Employer can demonstrate the deEmployer can demonstrate the de-- energizing introduces additional or energizing introduces additional or
increased hazards or is infeasible due increased hazards or is infeasible due
to equipment design or operational to equipment design or operational
limitations.
limitations.
60
►►Working on or near energized electrical Working on or near energized electrical parts
parts
OSHA & NFPA (similarities) OSHA & NFPA (similarities)
►►Qualified PersonQualified Person: ones familiar with the : ones familiar with the
construction and operation of the equipment construction and operation of the equipment and hazards involved
and hazards involved
SAFETY RELATED WORK SAFETY RELATED WORK
PRACTICES
PRACTICES
61
►►Working on or near energized electrical Working on or near energized electrical parts
parts
OSHA & NFPA (similarities) OSHA & NFPA (similarities)
►►Qualified Persons Qualified Persons shall be trained in the shall be trained in the following:
following:
SAFETY RELATED WORK SAFETY RELATED WORK
PRACTICES
PRACTICES
62
QUALIFIED PERSON QUALIFIED PERSON
TRAINING TRAINING
►►The skill necessary to distinguish exposed The skill necessary to distinguish exposed energized parts from other parts of electrical energized parts from other parts of electrical
equipment equipment
►►The skills necessary to determine the The skills necessary to determine the
nominal voltage of exposed energized parts nominal voltage of exposed energized parts
►►Approach distancesApproach distances
►►Personnel ProtectionPersonnel Protection
63
What companies are doing for What companies are doing for
compliance (Training) compliance (Training)
►►Classroom training on specific Classroom training on specific requirements of the standard requirements of the standard
Personnel protectionPersonnel protection
Flash protection boundariesFlash protection boundaries
►►On the job training specific to job dutiesOn the job training specific to job duties
64
►►Working on or near energized electrical Working on or near energized electrical parts
parts
OSHA & NFPA (Differences) OSHA & NFPA (Differences)
►►Approach BoundariesApproach Boundaries
OSHA Applies to when qualified persons are OSHA Applies to when qualified persons are working in the vicinity of overhead lines
working in the vicinity of overhead lines
NFPA applies to all work on live partsNFPA applies to all work on live parts
Employer must perform a Flash Hazard AnalysisEmployer must perform a Flash Hazard Analysis
SAFETY RELATED WORK SAFETY RELATED WORK
PRACTICES
PRACTICES
65
Limited Space Restricted Space
Prohibited Space
Flash Protection Boundary
Limited Approach Boundary Restricted Approach Boundary
Prohibited Approach Boundary
Exposed Energized Part
APPROACH BOUNDARIES
66
Approach Limits
Nominal System Voltage Range
Flash Protection Boundary
Limited Approach Boundary (Limited Space)-Exposed
Fixed Circuit Part
Restricted Approach Boundary (Restricted Space)
Prohibited Approach Boundary (Prohibited Space)
50 V to 300 V 3.5 ft 3.5 ft Avoid Contact Avoid Contact
301 to 750 V 3.5 ft 3.5 ft 1 ft 1 in
751 to 15 kV 5 ft 5 ft 2 ft 2 in 7 in
15.1 kV to 36 kV 6 ft 6 ft 2 ft 7 in 10 in
36.1 kV to 46 kV 8 ft 8 ft 2 ft 9 in 1 ft 5 in
67
68
Flash Hazard Alerting
Flash Hazard Alerting
69
Flash Hazard Alerting
Flash Hazard Alerting
70
Example 5 Example 5
What is the flash protection boundary requirement when
working on a live 120 V system?
71
Example 5 (Answer) Example 5 (Answer)
3.5 feet
72
What companies are doing for What companies are doing for
compliance (Flash Protection compliance (Flash Protection
Boundaries) Boundaries)
►►SetSet--up flash protection boundaries up flash protection boundaries based on the equipment nominal based on the equipment nominal
voltage voltage
►►Place flash protection boundary Place flash protection boundary
requirements in written program and requirements in written program and
equipment specific procedures equipment specific procedures
►►Enforce flash protection boundary Enforce flash protection boundary requirements
requirements
73
What companies are doing for What companies are doing for
compliance (Flash Protection compliance (Flash Protection
Boundaries) Boundaries)
Flash Protection Boundary: ___________
Limited Approach Boundary: __________
Restricted Approach Boundary: _________
Prohibited Approach Boundary: _________
PPE Hazard Level: _______
74
►►Working on or near energized electrical Working on or near energized electrical parts
parts
OSHA & NFPA (Similarities) OSHA & NFPA (Similarities)
►►Personnel ProtectionPersonnel Protection
OSHA refers to Subpart I requirements which OSHA refers to Subpart I requirements which refer to ANSI & ASTM standards
refer to ANSI & ASTM standards
NFPA also refers to applicable ANSI & ASTM NFPA also refers to applicable ANSI & ASTM standards
standards
SAFETY RELATED WORK SAFETY RELATED WORK
PRACTICES
PRACTICES
75
Voltage Protection Gloves
Voltage Protection Gloves
76
Lineman Sleeves
Lineman Sleeves
77
Voltage Rated Tools
Voltage Rated Tools
78
Personal Protective Equipment Personal Protective Equipment
►►OSHA & NFPA (Differences) OSHA & NFPA (Differences)
NFPA gives direction according to NFPA gives direction according to risk hazard categories
risk hazard categories
Risk Hazard Categories for protective Risk Hazard Categories for protective apparel is dependant on the
apparel is dependant on the arc arc thermal protection
thermal protection value of the value of the garment
garment
►►HRC 0HRC 0--ATPV = N/A ATPV = N/A
►►HRC 1HRC 1--ATPV = 5 cal/cm2 ATPV = 5 cal/cm2
►►HRC 2HRC 2--ATPV = 8 cal/cm2 ATPV = 8 cal/cm2
79 Hazard Risk Category Classifications: Panelboards Rated 240 V
and below
Remove/Install CBs or fused
switches 1 Y Y
Removal of bolted covers (to exposed bare, energized
parts)
1 N N
Task (assumes equipment is energized & work is being
done within the flash protection boundary)
Hazard/
Risk Category
V-Rated Glove
V-Rated Tools
HAZARD RISK CATEGORY CLASSIFICATIONS
80
Protective Clothing & Equipment Protective Systems for Hazard/Risk Category
Hazard/Risk Category
Number 0 1
Natural Fiber
•T-Shirt (short sleeve)
•Shirt (long sleeve)
•Pants (long) X
X
X X HAZARD RISK CATEGORY
CLASSIFICATIONS
81
Example 6 Example 6
A qualified person will perform install circuit breakers on a 208 Volt panel board?
1. What is the Hazard/Risk Category?
2. One type of protective clothing needed?
3. Are V-rated gloves needed?
4. Are V-rated tools needed?
82
Example 6 (Answer) Example 6 (Answer)
1. What is the Hazard/Risk Category? 1
2. One type of protective clothing needed?
Natural Fiber Long Pants ATPV = 5 ATPV = 5 cal/cm2
cal/cm2
3. Are V-rated gloves needed? Yes 4. Are V-rated tools needed? Yes
83
What companies are doing for What companies are doing for
compliance (PPE) compliance (PPE)
►►Perform risk hazard analysis according Perform risk hazard analysis according to NFPA standards
to NFPA standards
►►Place PPE requirements in written Place PPE requirements in written program and equipment specific program and equipment specific
procedures procedures
►►Enforce use of PPE when entering flash Enforce use of PPE when entering flash protection boundary
protection boundary
84
►►OSHA & NFPA (Differences) OSHA & NFPA (Differences)
NFPA 70E Electrical Safety ProgramNFPA 70E Electrical Safety Program
►►The employer shall implement an The employer shall implement an
overall electrical safety programs that overall electrical safety programs that directs activity appropriate for voltage, directs activity appropriate for voltage,
energy level, and circuits.
energy level, and circuits.
►►Establish Establish Energized Electrical Work Energized Electrical Work Permit System
Permit System
SAFETY RELATED WORK SAFETY RELATED WORK
PRACTICES
PRACTICES
85
ELECTRICAL SAFETY ELECTRICAL SAFETY
PROGRAM PROGRAM
►►ComponentsComponents
Maintenance of Electrical HazardsMaintenance of Electrical Hazards
Control of Electrical HazardsControl of Electrical Hazards
ProceduresProcedures
86
ELECTRICAL SAFETY ELECTRICAL SAFETY
PROGRAM PROGRAM
►►
Maintenance of Electrical Hazards Maintenance of Electrical Hazards
Methods of inspectionMethods of inspection
Maintenance of electrical system integrityMaintenance of electrical system integrity
Assessment of employees ability to Assessment of employees ability to perform work
perform work
87
ELECTRICAL SAFETY ELECTRICAL SAFETY
PROGRAM PROGRAM
►►
Control of Electrical Hazards Control of Electrical Hazards
TrainingTraining
Identification of tasks to be performed on Identification of tasks to be performed on or near energized parts
or near energized parts
Use and identification of of precautions Use and identification of of precautions appropriate for environment
appropriate for environment
88
ELECTRICAL SAFETY ELECTRICAL SAFETY
PROGRAM PROGRAM
►►
Procedures Procedures
Approach limitsApproach limits
PPE to be usedPPE to be used
Insulating tools and equipment to be usedInsulating tools and equipment to be used
89
What companies are doing for What companies are doing for
compliance (Written Program compliance (Written Program
& Procedures)
& Procedures)
►►Equipment specific proceduresEquipment specific procedures
►►Establish energized electrical work Establish energized electrical work permit program
permit program
►►Establish Establish Energized Electrical Work Energized Electrical Work Permit System
Permit System
90
4._________________________________________________________
3._________________________________________________________
2._________________________________________________________
Qualified Persons Involved: 1._________________________________________________________
_________________________________________________________________________________
Electrical PNL #__________
Work to be performed:__________________________________
Date:___________________
Building Name________________________________________
g. Electrical diagrams.
Voltage Rated Tools: Y N f. Insulating materials/tools to be used.
PPE Hazard Level: 0 1 2 3 4
Voltage Rated Gloves: 00 0 1 2 3 4 e. PPE to be used.
d. Other safe work practices, which will be used.
Flash Protection Boundary:________
Limited Approach Boundary:_______
Restricted Approach Boundary:______
Prohibited Approach Boundary:______
c. Approach limits.
1. Qualified Person Minimum Working Distances
2. Flash Protection Boundaries
b. Qualification and number of employees involved.
a. Purpose of task
ENERGIZED ELECTRICAL WORK PERMIT
91
Safety Related Work Practices NFPA vs. OSHA
√ Energized Electrical Work Permit
√ Electrical Safety Program
Risk Hazard According to
Voltage Refers Subpart I
Personal Protective Equipment
√ Approach Boundaries ALL work
√ Qualified Person/Training √
√
√ Working on Live Parts
NFPA 70E Chapter 4 1910.331-360
Reference
NFPA OSHA
92
93
94
95
96
97
98
99
100
101
102
103
