2-2015 nfpa 70e changes
TRANSCRIPT
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The 2015 Has Arrived!
The NFPA 70E was first
published in 1979 at the
request of OSHA.
The 2015 Edition is the tenth to
be published.
Each edition is made to bring
clarification and a safer work
environment.
The 2015 edition brings in
some major changes.
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Global Changes
2012 Edition 2015 Edition
Harm Injury or Damage to Health
Probablility Likelihood
Work Shoes Footwear
Arc Flash Hazard Analysis Arc Flash Risk Assessment
Shock Hazard Analysis Shock Risk Assessment
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Global Changes
These Global Changes provide
accuracy and better harmonize with
other standards addressing risk
and hazards
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Definitions
Qualified Person.One who has demonstrated
skills and knowledge related to the construc- tion
and operation of electrical equipment and
installations and has received safety training toidentify and avoid the hazards involved.
Risk.A combination of the likelihood of occurrence
of injury or damage to health and the severity ofinjury or damage to health that results from a
hazard.
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Definitions
Risk Assessment.An overall process that
identifies hazards, estimates the potential severity
of injury or damage to health, estimates the
likelihood of occurrence of injury or damage tohealth, and determines if protective measures are
required.
InformationalNote: As used in this standard, arcflash risk assessment and shock risk assessment
are types of risk assessments.
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Article 110.1(A)Electrical Safety Program.
General. The employer shall implement and document an overall
electrical safety program that directs activity appropriate to the risk
associated with electrical hazards. The electrical safety programshall be implemented as part of the employers overall occupational
health and safety management system, when one exists.
Informational Note No. 1:Safety-related work practices such as
verification of proper maintenance and installation, alerting
techniques, auditing requirements, and training requirements
provided in this standard are administrative controls and part of an
overall electrical safety program.
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Article 110.1(B)
Electrical Safety Program.
Maintenance.The electrical safety program shall
include elements that consider condition ofmaintenance of electrical equipment and systems.
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Article 110.2(C)(1)Training Requirements
Emergency Response Training
Contact Release. Employees exposed to shockhazards shall be trained in methods of safe release
of victims from contact with exposed energized
electri- cal conductors or circuit parts. Refresher
training shall occur annually.
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Article 110.2(C)(2)Training Requirements
First Aid, Emergency Response, and Resuscitation
(a) Employees responsible for responding to medical emergencies shall
be trained in first aid and emer- gency procedures.
(b) Employees responsible for responding to medical emergencies shall
be trained in cardiopulmonary resuscitation (CPR). Refresher training shall
occur annually.
(c) Employees responsible for responding to medical emergencies shall
be trained in the use of an auto- mated external defibrilator (AED) if an
employers emergency response plan includes the use of this device.Refresher training shall occur annually.
Employers shall verify at least annually that employee training required by
this section is current.
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Article 130.2(A)(4)This was added in the 2015 Text:
Normal Operation: Normal operation of electrical equipment shall
be permitted where all of the following conditions are satisfied:
(1) The equipment is properly installed.(2) The equipment is properly maintained.
(3) The equipment doors are closed and secured.
(4) All equipment covers are in place and secured.
(5) There is no evidence
**This is in accordance with manufacturer and industry codes andstandards. Physical damage, arcing, deterioration, and overheatingare all signs of impending failure.
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Article 130.2(B)(1)Energized Electrical Work Permits
When Required: When energized work is permitted in
accordance with 130.2(A), and energized electrical work permit
shall be required under the following conditions:
(1) When work is performed within the restricted approach
boundary
(2) When the employee interacts with the equipment whenconductors or circuit parts are not exposed but an increased
likelihood of injury from an exposure to an arc flash hazard
exists.
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Article 130.2(B)(3)Energized Electrical Work Permits
Exemptions to Work Permit :An energized work permit shall not be required if a
qualified person is provided with and uses appropriate safe work practices and PPE
under any of the following conditions:
(1) Testing, troubleshooting,and voltage measuring
(2) Thermography and visual inspections if the restricted approach boundary is not
crossed
(3) Access and egress from an area with energized electrical equipment if no
electrical work is performed and the restricted approach boundary is not crossed
(4) General housekeeping and miscellaneous non-electrical tasks if the restricted
approach boundary is not crossed.
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Article 130.4(A)
Shock Risk Assessment:
A shock risk assessment shall determine the
voltage to which personnel will be exposed, theboundary requirements, and the PPE necessary in
order to minimize the possibility of electric shock to
personnel.
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Prohibited
Approach
Boundary
Limited
Approach
Boundary
Restricted
Approach
Boundary
Shock Protection Boundaries
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Arc Flash Boundary
Limited Approach Boundary
Exposed Energized Conductor
or Circuit Part
Restricted Approach Boundary
Limited Space
Restr icted Space
2015 Boundaries
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Article 130.5Arc Flash Risk Assessment: An arc flash risk assessment shall be performed and shall:
(1) Determine if an arc flash hazard exists. If an arc flash hazard exists, the risk assessment shall
determine:
a. Appropriate safety-related work practices
b. The arc flash boundary
c. The PPE to be used within the arc flash boundary
(2) Updated with major modifications and reviewed periodically, at intervals not to exceed 5 yrs.
(3) Take into consideration the design of the overcorrect protective device and its opening time,
including its condition of maintenance.
Informational Note No. 1: Where equipment is not properly installed or maintained, PPE
selection based upon incident energy analysis or the PPE category method may not provide
adequate protection from arc flash hazards.
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Article 130.5(C)Arc Flash PPE: One of the following methods shall be
used for the selection of PPE. Either, but not both, methods
shall be permitted to be used on the same piece of
equipment. The results of an incident energy analysis to
specify an arc flash PPE Category in Table 130.7(C)(16)
shall not be permitted.
(1) Incident Energy Analysis Method.
(2) Arc Flash PPE Categories Method.
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HRC #14 cal/cm2Min.
HRC #0(100% Natural Fibers):
HRC #28 cal/cm2Min.
HRC #325 cal/cm2Min.
HRC #440 cal/cm2Min.
Hazard Risk Categories
PPEC #0 PPEC #11.2-4 Cal/cm2 PPEC #24.1-8 Cal/cm2 PPEC #38.1-25 Cal/cm2 PPEC #425.1-40 Cal/cm2
PPE Categories
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Arc-Rated vs. Flame-
ResistantProtective equipment and clothing that is intended for protectionfrom an arcing fault must be rated by the manufacturer for use in
an environment influenced by an electrical arc. Although the term
flame resistant (FR)has been used in previous editions of NFPA
70E, an FR marking on a garment does not necessarily mean it isarc rated. The term flame resistant is no longer used in NFPA
70E; this change has been made to clarify that onlyclothing or
other PPE with an arc ratingis acceptable for protecting persons
against arc flash hazards. The term flame resistant could indicate
exposure to other events such as flames from a fire. As anexample, FR clothing for race car drivers or pilots is not suitable
for arc flash protection.Arc-rated clothing is the only clothing
marked with the cal/cm2 rating.
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Article 130.5(D)
WARNIN
G
Equipment Bus: PAINT ROOM MCC-1
Lockout Device: MDP-1 3B
Date: 1/1/14
Reference Document: IEEE Std 1584 through 1584b-2011
PPE: Reference NFPA 70E-2012 Table 130.7 (C)(16)
#2Nominal System Voltage 480V
Arc Flash Boundary 38
Limited Approach Boundary 42
Restricted Approach Boundary 12
Prohibited Approach Boundary 1
Hazard Risk
Category @ 18
Arc Flash and Shock Hazard
Appropriate PPE Required
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Article 130.5(D)
WARNIN
G
Equipment Bus: PAINT ROOM MCC-1
Lockout Device: MDP-1 3B
Date: 1/1/14
Reference Document: IEEE Std 1584 through 1584b-2011
PPE: Reference NFPA 70E-2012 Table 130.7 (C)(16)
6.5Nominal System Voltage 480V
Arc Flash Boundary 38
Limited Approach Boundary 42
Restricted Approach Boundary 12
Prohibited Approach Boundary 1cal/cm2 @ 18
Arc Flash and Shock Hazard
Appropriate PPE Required
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Article 130.5(D)
The ownerof the electrical
equipment shall be responsible
for the documentation,installation, and maintenance of
the field-marked label.
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Article 130.7(15)(A)-(B)Al ternating Current (ac) Equipment : When selected in lieu of the incident energy
analysis of 130.5(B)(1), Table 130.7(C)(15)(A)(a) shall be used to identify when arc
flash PPE is required. When arc flash PPE is required, Table 130.7(C)(15)(A)(b)
shall be used to determine the arc flash PPE category. The estimated maximum
available short-circuit current, maxi- mum fault-clearing times, and minimum
working distances for various ac equipment types or classifications are listed inTable 130.7(C)(15)(A)(b). An incident energy analysis shall be required in
accordance with 130.5 for the following:
(1)Tasks not listed in Table130.7(C)(15)(A)(a)
(2)Power systems with greater than the estimated maximum available short-circuit
current
(3)Power systems with longer than the maximum fault clearing times
(4)Tasks with less than the minimum working distance
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Table 130.7(C)(15)(A)(a)Arc Flash Hazard Identification for Alternating Current and Direct Current Systems
Task Equipment ConditionArc Flash PPE
Required
Reading a panel meter while operating a meter
switchAny No
Normal operation of a circuit breaker (CB), switch,
contactor, or starter
All of the following:
The equipment is properly installed
The equipment is properly maintained
All equipment doors are closed and securedAll equipment covers are in place and secured
There is no evidence of impending failure
No
One or more of the following:
The equipment is not properly installed
The equipment is not properly maintained
Equipment doors are open or not secured
Equipment covers are off or not secured
There is no evidence of impending failure
Yes
For dc system: Work on energized electrical
conductors and circuit parts, including voltage
testing
Any Yes
For dc system: Work on energized electrical
conductors and circuit parts of series-connected
battery cells, including voltage testing
Any Yes
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Table 130.7(C)(15)(A)(b)Arc Flash Hazard PPE Categories for Alternating Current
EquipmentArc Flash PPE
Category
Arc Flash
Boundary
Panelboards or other equipment rated 240 V and
belowParameters: Maximum of 25 kA short-circuit current
available; maximum of 0.03 sec (2 cycles) fault clearing time;
working distance 455 mm (18 in.)
1 19 in.
Panelboards or other equipment rated >240 V and up to 600
VParameters: Maximum of 25 kA short-circuit current available;
maximum of 0.03 sec (2 cycles) fault clearing time; working distance
455 mm (18 in.)
2 3 ft.
600-V class motor control centers (MCCs)Parameters: Maximum
of 65 kA short-circuit current available; maximum of 0.03 sec (2
cycles) fault clearing time; working distance 455 mm (18 in.)
2 5 ft.
600-V class motor control centers (MCCs)
Parameters: Maximumof 42 kA short-circuit current available; maximum of 0.33 sec (20
cycles) fault clearing time; working distance 455 mm (18 in.)
4 14 ft.
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Article 130.5(D)
WARNIN
G
Equipment Bus: PAINT ROOM MCC-1
Lockout Device: MDP-1 3B
Date: 1/1/14
Reference Document: IEEE Std 1584 through 1584b-2011
PPE: Reference NFPA 70E-2012 Table 130.7 (C)(16)
#2Nominal System Voltage 480V
Arc Flash Boundary 38
Limited Approach Boundary 42
Restricted Approach Boundary 12
Prohibited Approach Boundary 1
Hazard Risk
Category @ 18
Arc Flash and Shock Hazard
Appropriate PPE Required
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Article 130.7(15)(D)(2)Barricades. Barricades shall be used in conjunction with
safety signs where it is necessary to prevent or limit
employee access to work areas containing energized
conductors or circuit parts. Conductive barricades shall
not be used where it might increase the likelihood of
exposure to an electrical hazard. Barricades shall be
placed no closer than the limited approach boundary
given in Table 130.4(D)(a) and Table 130.4(D)(b). Where
the arc flash boundary is greater than the limitedapproach boundary, barricades shall not be placed
closer than the arc flash boundary.
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Thank You!!
Brandon J [email protected]