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-[* black] 4. after you wear insulated gloves, gently pull out the switch and use a voltage detector to ensure no power is going to the switch,
+[* black] After you wear insulated gloves, gently pull out the switch and use a voltage detector to ensure no power is going to the switch,
[* black] then identify the black live or load wire which connects to the power or the device and usually on the down position of the switch, then labels the wire and removes it from the switch.