Testing And Verification Flashcards
1
Q
How do you test Earth continuity.
A
Set IR tester to 3 OHMS setting and place one prong on main earth and one on last point of circuit.
2
Q
How do you test insulation resistance?
A
Set IR tester to 500V/200Mohms and place one prong on outgoing active of circuit breaker and one on protected neutral bar.
3
Q
What are the three bus bars identified as on the top of a switchboard?
From left to right.
A
.Earth bar
.Unprotected neutral
.Protected neutral
4
Q
Which bar does the line side of an RCD neutral terminate into?
A
Unprotected neutral bar.
5
Q
Which bar does the load side of an RCD terminate into?
A
Protected neutral bar.
