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7 Cards in this Set

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  • Back
if one switch operates two loads, how is that drawn?
the switch is placed before the loads (on the left)
how is the position of two switches shown if both must be on to have the load operate?
normal (de-energized) position
with L1 hot & L2 neutral, where should the fused disconnect be placed?
on L1, the hot line
with two vertical lines represeting the power supply, which line is usually shown "hot"?
L1 on the left side
what essential electrical devices must be shown in each circuit?
*power supply *circuits
if the power lines are vertical, what does each horizontal line represent?
load & switch
what is the purpose of a schematic wiring diagram?
to assist a service technician in wiring the equipment,in locating connections for testing circuits,and in analyzing the operation of the control system