NFPA 70E Electrical Safety Exam 2026 With
100% Accurate Answers
1. Summarize the significance of Article 90 in the context of NFPA 70E.
Article 90 provides guidelines for the installation of electrical
equipment.
Article 90 discusses the types of circuit breakers used in electrical
systems.
Article 90 outlines the scope and applicability of NFPA 70E,
detailing what is included and excluded in the standards.
Article 90 specifies the training requirements for qualified
personnel.
2. What standard is primarily referenced for calculating incident energy in
NFPA 70E?
ANSI Z10
NFPA 70E
OSHA 1910
IEEE 1584
3. Why is it important for NFPA 70E to define terms in Article 100?
To list all electrical equipment types
To provide historical context for electrical safety
To ensure clarity and understanding of electrical safety
standards among users
To outline the penalties for non-compliance
,4. A protective boundary only to be crossed by qualified persons using
specific PPE and possessing an electrical work permit is the _.
Limited approach boundary
Prohibited approach boundary
Electrocution
Shock hazard
Restricted approach boundary
5. Describe the significance of the restricted and arc flash boundaries in
electrical safety as per NFPA 70E.
The restricted boundary indicates where shock protection is
necessary, while the arc flash boundary indicates where arc
flash protection must be worn.
The restricted boundary is for unqualified personnel, while the
arc flash boundary is for qualified personnel only.
Both boundaries are the same and refer to general electrical
safety.
The restricted boundary is for general safety, and the arc flash
boundary is for equipment maintenance.
6. What must be considered in the incident energy analysis according to
NFPA 70E?
the characteristics of the overcurrent protection device and its
fault clearing time
the training of unqualified personnel
the voltage levels of the electrical system
the type of personal protective equipment used
,7. Describe the significance of the fault clearing time for current-limiting
fuses in electrical safety.
The fault clearing time is only important for qualified personnel.
The fault clearing time is irrelevant to electrical safety.
The fault clearing time for current-limiting fuses is critical for
minimizing damage and ensuring safety during electrical faults.
The fault clearing time only affects the performance of circuit
breakers.
8. What does the acronym OCPD stand for in the context of electrical
safety?
Operational Control Power Device
Overload Current Protection Device
Operational Circuit Protection Device
Overcurrent Protective Device
9. What does Article 100 of NFPA 70E provide for terms or phrases used in
the document?
Standards for circuit breaker installation
Definitions for terms or phrases that may not be well
understood
Examples of electrical safety practices
Guidelines for PPE selection
10. Describe the purpose of the energized electrical work permit as
outlined in NFPA 70E.
The energized electrical work permit is only necessary for
qualified personnel.
, The energized electrical work permit allows workers to bypass
safety measures.
The energized electrical work permit is designed to ensure
safety protocols are followed when working on live electrical
equipment.
The energized electrical work permit is a form used for
documenting electrical incidents.
11. What are the two boundaries mentioned in NFPA 70E regarding
electrical safety?
safe/unsafe
restricted/arc flash
high/low
inner/outer
12. In a facility where electrical safety is paramount, if an employee needs
to operate a circuit breaker, which type should they be trained on to
ensure compliance with NFPA 70E standards?
Residual Current Circuit Breakers
Air Circuit Breakers
Miniature Circuit Breakers
Molded Case Circuit Breakers/Insulated Case Circuit Breakers
13. Which types of circuit breakers utilize a two-step stored energy
process for their operation?
Air Circuit Breakers
Miniature Circuit Breakers
Hydraulic Magnetic Circuit Breakers
100% Accurate Answers
1. Summarize the significance of Article 90 in the context of NFPA 70E.
Article 90 provides guidelines for the installation of electrical
equipment.
Article 90 discusses the types of circuit breakers used in electrical
systems.
Article 90 outlines the scope and applicability of NFPA 70E,
detailing what is included and excluded in the standards.
Article 90 specifies the training requirements for qualified
personnel.
2. What standard is primarily referenced for calculating incident energy in
NFPA 70E?
ANSI Z10
NFPA 70E
OSHA 1910
IEEE 1584
3. Why is it important for NFPA 70E to define terms in Article 100?
To list all electrical equipment types
To provide historical context for electrical safety
To ensure clarity and understanding of electrical safety
standards among users
To outline the penalties for non-compliance
,4. A protective boundary only to be crossed by qualified persons using
specific PPE and possessing an electrical work permit is the _.
Limited approach boundary
Prohibited approach boundary
Electrocution
Shock hazard
Restricted approach boundary
5. Describe the significance of the restricted and arc flash boundaries in
electrical safety as per NFPA 70E.
The restricted boundary indicates where shock protection is
necessary, while the arc flash boundary indicates where arc
flash protection must be worn.
The restricted boundary is for unqualified personnel, while the
arc flash boundary is for qualified personnel only.
Both boundaries are the same and refer to general electrical
safety.
The restricted boundary is for general safety, and the arc flash
boundary is for equipment maintenance.
6. What must be considered in the incident energy analysis according to
NFPA 70E?
the characteristics of the overcurrent protection device and its
fault clearing time
the training of unqualified personnel
the voltage levels of the electrical system
the type of personal protective equipment used
,7. Describe the significance of the fault clearing time for current-limiting
fuses in electrical safety.
The fault clearing time is only important for qualified personnel.
The fault clearing time is irrelevant to electrical safety.
The fault clearing time for current-limiting fuses is critical for
minimizing damage and ensuring safety during electrical faults.
The fault clearing time only affects the performance of circuit
breakers.
8. What does the acronym OCPD stand for in the context of electrical
safety?
Operational Control Power Device
Overload Current Protection Device
Operational Circuit Protection Device
Overcurrent Protective Device
9. What does Article 100 of NFPA 70E provide for terms or phrases used in
the document?
Standards for circuit breaker installation
Definitions for terms or phrases that may not be well
understood
Examples of electrical safety practices
Guidelines for PPE selection
10. Describe the purpose of the energized electrical work permit as
outlined in NFPA 70E.
The energized electrical work permit is only necessary for
qualified personnel.
, The energized electrical work permit allows workers to bypass
safety measures.
The energized electrical work permit is designed to ensure
safety protocols are followed when working on live electrical
equipment.
The energized electrical work permit is a form used for
documenting electrical incidents.
11. What are the two boundaries mentioned in NFPA 70E regarding
electrical safety?
safe/unsafe
restricted/arc flash
high/low
inner/outer
12. In a facility where electrical safety is paramount, if an employee needs
to operate a circuit breaker, which type should they be trained on to
ensure compliance with NFPA 70E standards?
Residual Current Circuit Breakers
Air Circuit Breakers
Miniature Circuit Breakers
Molded Case Circuit Breakers/Insulated Case Circuit Breakers
13. Which types of circuit breakers utilize a two-step stored energy
process for their operation?
Air Circuit Breakers
Miniature Circuit Breakers
Hydraulic Magnetic Circuit Breakers
