48 Questions
What should employees be instructed to be at all times where electrical hazards might exist?
Alert
When are employees not permitted to work where electrical hazards exist?
When their alertness is impaired
Why should employees be instructed to be alert for changes in the job or task?
To prevent exposure to additional hazards
What should employees not do in areas that might contain exposed energized electrical conductors or circuit parts where an electrical hazard exists?
Reach blindly
What is the purpose of using barricades in conjunction with safety signs?
To prevent or limit employee access to work areas containing energized conductors or circuit parts
Under what condition should conductive barricades not be used?
Where it might increase the likelihood of exposure to an electrical hazard
What is the primary duty of an attendant providing manual signaling and alerting?
To keep unqualified employees outside a work area where they might be exposed to electrical hazards
When should an attendant be stationed to warn and protect employees?
If signs and barricades do not provide sufficient warning and protection from electrical hazards
What is the purpose of employing alerting methods in the presence of look-alike equipment?
To prevent the employee from entering look-alike equipment
Where should barricades be placed in relation to the limited approach boundary?
No closer than the limited approach boundary
Under what circumstance should conductive barricades not be used?
Where it might increase the likelihood of exposure to an electrical hazard
What is the responsibility of an attendant providing manual signaling and alerting?
To keep unqualified employees outside a work area where they might be exposed to electrical hazards
What is prohibited in restricted approach boundaries due to electrical contact hazards?
Conductive jewelry and clothing
What is required in confined or enclosed spaces with electrical hazards?
Protective shields, barriers, or insulating materials
What should be used for opening, reversing, or closing circuits under load conditions?
Load-rated switches or circuit breakers specifically designed as disconnecting means
What is required when there is evidence of potential failure in electric equipment?
De-energization of electric equipment
Who is permitted to temporarily defeat or bypass electrical safety interlocks while working on equipment within the restricted approach boundary?
Only qualified persons
What should be prevented when handling conductive materials, tools, and equipment?
Unintentional contact with energized electrical conductors
What must be ensured when conductive materials approach exposed energized electrical conductors?
They do not come closer than permitted
What should be done to prevent contact with exposed energized electrical conductors in confined or enclosed spaces?
Securing doors and hinged panels
What is required for safe operation and maintenance of electrical equipment in working spaces?
Clear working spaces
What is restricted unless preventive measures are taken?
Use of electric equipment capable of igniting flammable materials
When can circuits be manually re-energized after protective device operation?
After being determined safe by a qualified person
What should be used for opening, reversing, or closing circuits under load conditions?
Load-rated switches or circuit breakers specifically designed as disconnecting means
Employees are permitted to work where electrical hazards exist while their alertness is recognizably impaired due to illness, fatigue, or other reasons.
False
Employees are not required to be instructed to be alert for changes in the job or task that could lead the person outside of the electrically safe work condition.
False
Employees are permitted to reach blindly into areas that might contain exposed energized electrical conductors or circuit parts where an electrical hazard exists.
False
Employees are permitted to enter spaces where electrical hazards exist unless illumination is provided that enables the employees to perform the work safely.
False
True or false: Safety signs, tags, and barricades are not necessary when working on equipment that is de-energized and placed in an electrically safe condition in a work area with other energized look-alike equipment?
False
True or false: Conductive barricades should not be used in areas where they might increase the likelihood of exposure to an electrical hazard?
True
True or false: Barricades shall be placed no closer than the limited approach boundary given in Table 130.4(E)(a) and Table 130.4(E)(b)?
True
True or false: An attendant providing manual signaling and alerting shall primarily keep qualified employees outside a work area where they might be exposed to electrical hazards?
False
True or false: Where the arc flash boundary is less than the limited approach boundary, barricades shall not be placed closer than the arc flash boundary?
False
True or false: An attendant station is not necessary if signs and barricades provide sufficient warning and protection from electrical hazards?
False
True or false: Look-alike equipment does not require any specific alerting methods as per 130.8(O)?
False
True or false: Conductive barricades should be used in areas to prevent or limit employee access to work areas containing energized conductors or circuit parts?
True
True or false: Conductive jewelry and clothing are permitted in restricted approach boundaries due to electrical contact hazards?
False
True or false: Protective shields, barriers, or insulating materials are not required in confined or enclosed spaces with electrical hazards?
False
True or false: It is not necessary to keep working spaces clear for safe operation and maintenance of electrical equipment?
False
True or false: Electric equipment capable of igniting flammable materials can be used without any preventive measures?
False
True or false: De-energization of electric equipment is not required when there is evidence of potential failure?
False
True or false: Circuits can be manually re-energized after protective device operation without determining safety by a qualified person?
False
True or false: Only unqualified persons are permitted to temporarily defeat or bypass electrical safety interlocks while working on equipment within the restricted approach boundary?
False
True or false: Handling of conductive materials, tools, and equipment should prevent unintentional contact with energized electrical conductors?
True
True or false: Measures must not be taken to ensure conductive materials approach exposed energized electrical conductors no closer than permitted?
False
True or false: Housekeeping duties inside the limited approach boundary should be performed with adequate safeguards to prevent electrical contact?
True
True or false: Load-rated switches or circuit breakers specifically designed as disconnecting means should not be used for opening, reversing, or closing circuits under load conditions?
False
True or false: Circuits shall be manually re-energized after protective device operation until determined safe by a qualified person?
False
Study Notes
Electrical Safety Guidelines Summary
- Conductive jewelry and clothing are prohibited in restricted approach boundaries due to electrical contact hazards.
- Handling of conductive materials, tools, and equipment should prevent unintentional contact with energized electrical conductors.
- Measures must be taken to ensure conductive materials approach exposed energized electrical conductors no closer than permitted.
- Protective shields, barriers, or insulating materials are required in confined or enclosed spaces with electrical hazards.
- Doors and hinged panels must be secured to prevent contact with exposed energized electrical conductors.
- Working spaces must be kept clear for safe operation and maintenance of electrical equipment.
- Housekeeping duties inside the limited approach boundary should be performed with adequate safeguards to prevent electrical contact.
- Use of electric equipment capable of igniting flammable materials is restricted unless preventive measures are taken.
- De-energization of electric equipment is required when there is evidence of potential failure, unless additional hazards are introduced.
- Load-rated switches or circuit breakers specifically designed as disconnecting means should be used for opening, reversing, or closing circuits under load conditions.
- Circuits shall not be manually re-energized after protective device operation until determined safe by a qualified person.
- Only qualified persons are permitted to temporarily defeat or bypass electrical safety interlocks while working on equipment within the restricted approach boundary.
Electrical Safety Guidelines Summary
- Conductive jewelry and clothing are prohibited in restricted approach boundaries due to electrical contact hazards.
- Handling of conductive materials, tools, and equipment should prevent unintentional contact with energized electrical conductors.
- Measures must be taken to ensure conductive materials approach exposed energized electrical conductors no closer than permitted.
- Protective shields, barriers, or insulating materials are required in confined or enclosed spaces with electrical hazards.
- Doors and hinged panels must be secured to prevent contact with exposed energized electrical conductors.
- Working spaces must be kept clear for safe operation and maintenance of electrical equipment.
- Housekeeping duties inside the limited approach boundary should be performed with adequate safeguards to prevent electrical contact.
- Use of electric equipment capable of igniting flammable materials is restricted unless preventive measures are taken.
- De-energization of electric equipment is required when there is evidence of potential failure, unless additional hazards are introduced.
- Load-rated switches or circuit breakers specifically designed as disconnecting means should be used for opening, reversing, or closing circuits under load conditions.
- Circuits shall not be manually re-energized after protective device operation until determined safe by a qualified person.
- Only qualified persons are permitted to temporarily defeat or bypass electrical safety interlocks while working on equipment within the restricted approach boundary.
Test your knowledge of electrical safety guidelines with this quiz. Covering topics such as conductive materials, protective measures, de-energization, and safe operation of electrical equipment, this quiz will help you ensure compliance with essential safety protocols.
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