5/1 NFPA70E Final: NFPA 70E - ELECTRICAL SAFETY TRAINING Exam_2023.
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Course
5/1 NFPA70E : NFPA 70E - ELECTRICAL SAFETY TR
Institution
5/1 NFPA70E : NFPA 70E - ELECTRICAL SAFETY TR
5/1 NFPA70E Final: NFPA 70E - ELECTRICAL SAFETY TRAINING Exam_2023.
NFPA 70E, Standard for Electrical Safety in the Workplace, consists of ? chapters; 17 informative annexes; the Foreword to NFPA 70E; and Article 90, Introduction. Chapter 1 is divided into ? articles.
3/5
The appointment of th...
5/1 NFPA70E Final: NFPA 70E - ELECTRICAL SAFETY
TRAINING Exam_2023.
NFPA 70E, Standard for Electrical Safety in the Workplace, consists of ?
chapters; 17 informative annexes; the Foreword to NFPA 70E; and Article 90,
Introduction. Chapter 1 is divided into ? articles.
3/5
The appointment of the NFPA 70E Committee was announced on January 7, ? ,
and was formed to assist ? in preparing electrical safety standards that would
serve its requirements.
1976/OSHA
The 1995 edition of NFPA 70E included the concepts of ? and the establishment
of an arc. The 2000 edition continued to focus on establishment of flash
protection boundaries, the use of personal protective equipment, and ? to assist
the user in applying appropriate protective clothing and personal protective
equipment for common tasks.
Limits of Approach/Charts
The 2004 edition of NFPA 70E introduced the requirements of ? . The 2018 edition
? all previous editions.
The energized electrical work permit / supersedes
NFPA 70E Chapter 1 applies generally to electrical safety in the workplace.
Chapter 2 addresses safety-related ? requirements. Chapter 3 ? Chapter 1 with
safety requirements for special equipment.
maintenance / supplements or modifies
Explanatory material is included in the form of informational notes, which are not
enforceable as requirements. Brackets containing section references to another
NFPA document are for informational purposes only and are provided as a guide
to indicate the source of the extracted text.
True
An arc flash hazard is defined in Article 100 as a source of possible injury or
damage to health associated with the release of energy caused by an electric arc.
Informational Note No. 1 indicates that the likelihood of occurrence of an arc flash
incident increases when energized electrical conductors or circuit parts are
exposed or when they are within equipment in a(n) ? condition, provided a person
is interacting with the equipment in such a manner that could cause an electric
arc. An arc flash incident is not likely to occur under normal operating conditions
when enclosed energized equipment has been properly installed and ?
guarded or enclosed / maintained
Arc rating is defined in Article 100, in part, as the value attributed to materials that
describes their performance with exposure to an electrical arc discharge and is
expressed ? . Informational Note No. 1 states, in part, that arc-rated clothing or
equipment has been tested for exposure to an electric arc and that flame-
resistant (FR) clothing without an arc rating ? been tested for exposure to an
electric arc
in cal/cm2 / has not
,ATPV is defined in ASTM F1959/F1959M as the incident energy (cal/cm2) on a
material or a multilayer system of materials that results in a ? probability that
sufficient heat transfer through the tested specimen is predicted to cause the
onset of a second degree skin burn injury based on the Stoll curve. EBT is
defined in ASTM F 1959-06 as the incident energy (cal/cm2) on a material or a
material system that results in a ? probability of break open.
50% / 50%
The Informational Note to the definition of arc flash boundary states that,
according to the Stoll skin burn injury model, the onset of a second degree burn
on unprotected skin is likely to occur at an exposure of ? for one second.
1.2 cal/cm2
An approach limit at a distance from an exposed energized electrical conductor
or circuit part within which a shock hazard exists
Limited Approach Boundary
An approach limit at a distance from an exposed energized electrical conductor
or circuit part within which there is an increased likelihood of electric shock, due
to electrical arc-over combined with inadvertent movement
Restricted Approach Boundary
When an arc flash hazard exists, an approach limit from an arc source at which
incident energy equals 1.2 cal/cm2 (5 J/cm2)
Arc-Flash Boundary
An electrical hazard is defined as a dangerous condition such that contact or ?
can result in electric shock, arc flash burn, thermal burn, or ? .
equipment failure / arc blast injury
Incident energy is defined as the amount of thermal energy impressed on a
surface, a certain distance from the source, generated during an electrical arc
event. Incident energy is typically expressed in ?
calories per centimeter squared (cal/cm2)
A qualified person is defined as one who has demonstrated skills and knowledge
related to the construction and ? of electrical equipment and installations, and
has received safety training to ? the hazards and reduce the associated risk.
operation / identify
An unqualified person is defined as a person who is not a qualified person
True
The requirements that address host and contract employer's responsibilities
require a number of things. Which of the following are among those
requirements?
1. The contract employer must ensure that each employee follows the work practices
required by NFPA 70E in addition to any safety-related work rules of the host employer.
IV. The host employer must inform the contract employer with the information about the
employer's installation that the contract employer needs to make the assessments
required by Chapter 1 of NFPA 70E
V. There must be a documented meeting between the host employer and the contract
employer where the host employer has knowledge of hazards covered by NFPA 70E
that are related to the contract employer's work.
, The electrical safety training requirements in 110.2(A) state that employees are
required to be trained in a number of topics. Which of the following are among
those employee training topics?
I. In safety-related work practices and procedural requirements, as necessary, to
provide protection from the electrical hazards associated with their respective job or
task assignments
III. To identify and understand the relationship between electrical hazards and possible
injury
IV. To understand the specific hazards associated with electrical energy
Determine which of the following are required to meet the NFPA 70E
requirements related to emergency response training.
II. Employees exposed to shock hazards and those responsible for the safe release of
victims from contact with exposed energized electrical conductors or circuit parts shall
be trained in methods of safe release.
III. Employees responsible for responding to medical emergencies shall be trained in
first aid and emergency procedures.
IV. Employers shall verify at least annually that employee emergency response training
is current.
V. The employer shall document that emergency response training has occurred.
The employer must document that each employee has received the training
required by 110.2(A). This documentation of training must satisfy which of the
following criteria?
I. It must be made when the employee demonstrates proficiency in the work practices
involved.
II. It must be maintained for the duration of the employee's employment.
III. It must contain the content of the training, each employee's name, and dates of
training
Identify which of the following statement(s) is/are true as they relate to
unqualified persons.
I. An unqualified person is defined as a person who is not a qualified person.
III. Unqualified persons must be familiar with any electrical safety-related practices
necessary for their safety.
IV. Unqualified persons must be trained in any electrical safety-related practices
necessary for their safety.
Determine which of the following among the NFPA 70E requirements relate to
qualified person training, both generally and when such persons are permitted to
work within the limited approach boundary.
I. The employee must be familiar with the proper use of the special precautionary
techniques, applicable electrical policies and procedures, PPE, insulating and shielding
materials, and insulated tools and test equipment.
II. The employee must be trained in the skills and techniques necessary to determine
the nominal voltage of exposed energized electrical conductors and circuit parts.
III. The employee must be trained to select an appropriate test instrument and
demonstrate how to use the correct device to verify the absence of voltage.
IV. The employer must determine that each employee is complying with the safety-
related work practices required by NFPA 70E through regular supervision or inspections
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