C&C Switchboard Flashcards
1
Q
What does C and C stand for
A
Control and communication
2
Q
What is a converted supply
A
A supply that has had its voltage or frequency changed from 440v
3
Q
What are the voltages in a C&C switchboard
A
24v dc
115v ac 400Hz
4
Q
What is the earth testing facility
A
A push button switch with integral lamp
5
Q
What does TRU stand for
A
Transformer rectifier unit
6
Q
What does RTR stand for
A
Rationalised transformer rectifier
7
Q
Categories of batteries
A
Primary
Secondary
8
Q
Primary batteries
A
None rechargeable
Dry cell
Small
9
Q
Secondary batteries
A
Rechargeable
Wet cell
Variety of sizes
10
Q
How do we measure capacity
A
Amp hours
11
Q
Fully charged voltage
A
2.1v
12
Q
Discharged voltage
A
1.75v
13
Q
Difference in voltage
A
0.35v
