Electric Shock Risk Assessment

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What is the purpose of an electric shock risk assessment according to the given text?

To identify electric shock hazards and estimate the likelihood and severity of injury (correct)

To determine the voltage requirements for personnel exposure

To assess the design and operating condition of electrical equipment

To document the results of the electric shock risk assessment

What factors should be considered when estimating the likelihood and severity of injury or damage to health?

The condition of maintenance and documentation

The design of the electrical equipment and its operating condition (correct)

The voltage requirements for personnel exposure

The boundary requirements for personal protective equipment

When additional protective measures are required, what should be determined if the use of PPE is included?

The condition of maintenance and selection of protective measures

The personal and other protective equipment required by the standard

The voltage to which personnel will be exposed and the boundary requirements (correct)

The documentation required for personal protective equipment

What is required in terms of documentation for the results of an electric shock risk assessment?

The results should be documented Signup and view all the answers

What are the two electric shock protection boundaries identified in the text?

Limited approach boundary and restricted approach boundary Signup and view all the answers

Who is permitted to approach nearer than the limited approach boundary of energized conductors and circuit parts?

Unqualified persons only Signup and view all the answers

What method should be applied to warn unqualified persons of the electrical hazard when they are working at or close to the limited approach boundary?

130.8(O) Signup and view all the answers

Under what circumstances are unqualified persons permitted to cross the limited approach boundary?

They can cross if they are escorted by a qualified person Signup and view all the answers

What is the restricted approach boundary based on?

Table 130.4(E)(b) for dc system voltages Signup and view all the answers

When can a qualified person approach closer to exposed energized electrical conductors or circuit parts than the restricted approach boundary?

When insulated or guarded from the energized parts Signup and view all the answers

What are considered insulation with regard to the energized parts upon which work is performed?

$130.4(D)$ Signup and view all the answers

Under what condition can a qualified person take any conductive object closer to exposed energized electrical conductors or circuit parts than the restricted approach boundary?

$130.4(G)(1)$ applies Signup and view all the answers

What is the first step in establishing and verifying an electrically safe work condition?

Determine all possible sources of electrical supply to the specific equipment Signup and view all the answers

What should be visually verified after properly interrupting the load current?

That all blades of the disconnecting devices are fully open Signup and view all the answers

What is the purpose of applying lockout/tagout devices in accordance with a documented and established procedure?

To prevent unintentional energization of circuit parts Signup and view all the answers

What should be tested at each point of work to test for the absence of voltage?

Each phase conductor or circuit part both phase-to-phase and phase-to-ground Signup and view all the answers

What is the purpose of using an adequately rated permanently mounted absence of voltage tester?

To test for the absence of voltage at the work location Signup and view all the answers

What is a requirement for the use of a noncontact capacitive test instrument on electrical systems over 1000 volts?

It must be listed and labeled for the purpose of testing for the absence of voltage Signup and view all the answers

What should be done where the possibility of induced voltages or stored electrical energy exists?

Ground all circuit conductors and circuit parts before touching them Signup and view all the answers

What should temporary protective grounding equipment be capable of conducting?

The maximum fault current that could flow at the point of grounding Signup and view all the answers

What is required in terms of documentation for the results of an electric shock risk assessment?

Documentation as part of the employer’s job planning Signup and view all the answers

Under what condition can a qualified person approach closer to exposed energized electrical conductors or circuit parts than the restricted approach boundary?

When wearing proper Personal Protective Equipment (PPE) Signup and view all the answers

What boundary is based on the limited approach distance?

Restricted approach boundary Signup and view all the answers

Who is permitted to approach nearer than the limited approach boundary of energized conductors and circuit parts?

No one Signup and view all the answers

When estimating the likelihood and severity of injury or damage to health, what factors should be considered?

Both likelihood and severity of injury or damage to health Signup and view all the answers

What should be determined if additional protective measures are required?

Whether PPE is included in the job planning Signup and view all the answers

What method should be applied to warn unqualified persons of the electrical hazard when they are working at or close to the limited approach boundary?

A combination of oral and visual methods Signup and view all the answers

Electric Shock Risk Assessment

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Questions and Answers

What is the purpose of an electric shock risk assessment according to the given text?

What factors should be considered when estimating the likelihood and severity of injury or damage to health?

When additional protective measures are required, what should be determined if the use of PPE is included?

What is required in terms of documentation for the results of an electric shock risk assessment?

What are the two electric shock protection boundaries identified in the text?

Who is permitted to approach nearer than the limited approach boundary of energized conductors and circuit parts?

What method should be applied to warn unqualified persons of the electrical hazard when they are working at or close to the limited approach boundary?

Under what circumstances are unqualified persons permitted to cross the limited approach boundary?

What is the restricted approach boundary based on?

When can a qualified person approach closer to exposed energized electrical conductors or circuit parts than the restricted approach boundary?

What are considered insulation with regard to the energized parts upon which work is performed?

Under what condition can a qualified person take any conductive object closer to exposed energized electrical conductors or circuit parts than the restricted approach boundary?

What is the first step in establishing and verifying an electrically safe work condition?

What should be visually verified after properly interrupting the load current?

What is the purpose of applying lockout/tagout devices in accordance with a documented and established procedure?

What should be tested at each point of work to test for the absence of voltage?

What is the purpose of using an adequately rated permanently mounted absence of voltage tester?

What is a requirement for the use of a noncontact capacitive test instrument on electrical systems over 1000 volts?

What should be done where the possibility of induced voltages or stored electrical energy exists?

What should temporary protective grounding equipment be capable of conducting?

What is required in terms of documentation for the results of an electric shock risk assessment?

Under what condition can a qualified person approach closer to exposed energized electrical conductors or circuit parts than the restricted approach boundary?

What boundary is based on the limited approach distance?

Who is permitted to approach nearer than the limited approach boundary of energized conductors and circuit parts?

When estimating the likelihood and severity of injury or damage to health, what factors should be considered?

What should be determined if additional protective measures are required?

What method should be applied to warn unqualified persons of the electrical hazard when they are working at or close to the limited approach boundary?

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