PAES Practice EP · Electrical EP5 · Ceiling Light + Switch
0/5
0:00
Exit
EP5 · Procedure
1
Connect black wire to switch terminal 1.
2
Connect a black wire from switch terminal 2 to ceiling box.
3
Connect white wires through both boxes.
4
Connect ground wires through both boxes.
5
Test continuity, plug into GFCI, flip switch.
Switch logic
The switch interrupts the BLACK wire. White and ground always run through.
CEILING BOX
BLACK
WHITE
GROUND
SWITCH
T1
T2
WHITE
GND
Black → T1
Black T2 → CB
White run
Ground
💡

Single-pole switch

A switch is a break in the black (hot) wire. When it's closed, current flows. When it's open, the lamp is dark. White and ground go straight through both boxes — they're never switched.
  • ○ Black switch terminal 1 = source
  • ○ Black switch terminal 2 = to fixture
  • ○ White: source → fixture (no switch)
  • ○ Ground: source → all boxes