Electric Mid Term Flashcards
What does NEMA stand for?
National Electrical Manufacturers Association
What does IEC stand for?
International Electrotechnical Commission
What are NEMA contactors sized using?
Horsepower
How are IEC relays sized?
Numbers
What are the rings of magnetism called around the wire?
Lines of flux.
What does BOY stand for?
Brown, Orange, Yellow
In BOY, what does Brown refer to?
Brown wire, 1 phase
In BOY, what does O stand for?
Orange wire, 2 Phase
In BOY, what does Y stand for?
Yellow wire, 3 Phase
What is the unit of capacitance?
Farad (F)
What is the name of typical wire used in residential?
Romex
What is AWG?
American Wire Gauge.
What gauge is white romex?
14 AWG
What size breaker do we use for white romex wire?
15 AMP (Rated for 20 AMP)
What gauge is yellow romex wire?
12 AWG
What breaker do we use for yellow romex wire?
20 AMP (Rated for 25 AMP)
What gauge is orange romex wire?
10 AWG
What breaker do we use for orange romex wire?
30 AMP (Rated for 35 AMP)
What does NEC stand for?
National Electric Code
What ohmic value shows continuity?
0.1 Ohms or above
What is a load center?
The central location which distributes power.
What is the maximum number of receptacles on a 20 amp 120V circuit?
10
What color screw is used for hot connections?
Gold
What color screw is used for neutral connections?
Silver
What color screw is used for ground connections?
Green
Which side of a GFCI is protected?
Load side
Which side of a GFCI is not protected?
Line side
What does GFCI stand for?
Ground Fault Circuit Interuptor
What should you do before making any electrical repair?
Check for source voltage
What is bonding?
Landing neutral and ground connections together.
Difference to trip gfci
3-5 milli amps (mA)
