Describe Safety Procedures For Operating HV Switches and Circuit Breakers Flashcards
1
Q
What is, in sequence, the four steps to take for locking out before working on HV equipment?
A
- Disconnect
- Lock out and tag
- Prove absence of voltage
- Ground
2
Q
What must be done before using an approved tester to test for absence of voltage?
A
Verify that the tester itself is working
3
Q
What is the first connection to be made when using ground leads to ground de-energized phase conductors?
A
The ground leads must be connected to ground before they are connected to the phase conductors.
4
Q
How is access to adjacent live equipment prevented?
A
Through the use of barriers and warning signs
