Manufacture of wiring devices

27.33
Manufacture of wiring devices
This class includes the manufacture of current-carrying and non current-carrying wiring devices for electrical circuits regardless of material.

This class includes:
- manufacture of bus bars, electrical conductors (except switchgear-type) 
- manufacture of GFCI (ground fault circuit interrupters) 
- manufacture of lamp holders 
- manufacture of lightning arrestors and coils
- manufacture of switches for electrical wiring (e.g. pressure, pushbutton, snap, tumbler switches) 
- manufacture of electrical outlets or sockets
- manufacture of boxes for electrical wiring (e.g. junction, outlet, switch boxes) 
- manufacture of electrical conduit and fitting 
- manufacture of transmission pole and line hardware 
- manufacture of plastic non current carrying wiring devices including plastic junction boxes, face plates and similar, plastic pole line fittings and switch covers
This class excludes:
- manufacture of ceramic insulators, see 23.43
- manufacture of electronic component-type connectors, sockets, and switches, see 26.11