Electrical Safety In The Workplace Flashcards
___________ publishes standards to promote safe products and consumer confidence?
ASTM
Arc Flash boundaries are determined by:
Engineers:P
What does Annex H do?
Breaks down tasks into 2 categories to help PPE selection
Annex 1 suggests using _________ for job briefings
Safety checklist
What is included in the 70E handbook but not the standard?
Excerpts from the NEC
Ch 3 of 70E covers safety requirements of:
Special equipment
Qualified electrolytic cell workers must be qualified in:
Ungrounded DC sources
Batteries in series produce voltage equal to:
A single battery times the number of batteries
Battery room should have what material floor?
Concrete
Article 340 does NOT cover:
Subatomic radiation
NFPA 70E ch 2 stresses the importance of:
Regular equipment maintenance
OSHA recommends retraining after _________ of not performing a task.
1 year
All disconnects must have ________ identified so correct testing equipment can be used.
Voltage
Current carrying conductors must be properly sized according to ______________.
NEC standards
Electrical instillations in hazardous areas…..
All of the above
It is permissible to perform energized work if:
Shutting down is a greater risk.
Can an unqualified worker go beyond the restricted boundary if safe work conditions have been established?
Yes…
What hazard analysis should be completed before work near conductors?
Shock/arc flash
What is not determined by arc flash hazard analysis?
If a lockout/tagout is needed
To prevent shock/arc flash, what kind of boots should be worn?
Leather
To prevent electric shock, ______________ all circuits and conductors.
De-energize
What extra step do we take to achieve safe work conditions when there is a possibility of stored energy?
Grounds
Is PPE needed once safe work conditions is established?
No
What type of lockout/tagout is used when only 1 disconnect controls the circuit?
Simple
A tagout device must be rated for _____lbs.
50
True or false: only the host employer is responsible for employee safety.
False, the contract employer is also responsible for employee safety!
Qualified persons must:
Be able to asses electrical hazards
Where to find proper PPE requirements in employee safety program?
?
An electrical audit should be performed every:
3 years
The appropriate rating of arc flash suit should be determined by:
The amount of exposure to flash
What is incident energy?
Energy released during an arc flash
The point where the electric company wiring meets a structures wiring and NFPA 70E begins is called the:
Service point
