The neutral will have raised ribs or other markings down the length of the insulation. The hot wire is always smooth. Examine the screw terminals on the new lamp socket. When wiring a lamp socket, the ...

Designed for quick and easy testing of single-phase industrial socket wiring, the CP201 includes both 16A and 32A industrial versions of the Martindale classic check plug, fitted with a 230V 16A or ...