N

Nai guard, 124

National Electrical Code (NEC), 5.13. 34.

36. 44, 122, 126, 128, 138.141 kitchen Code requirements. 232 outdoor Code requirements, 254 room addition Code requirements, 204 subpanel requirements, 195 National Fire Protection Agency, 122 Neon circuit tester, 18-19,168,192 Network Interface Device (NID). 273 and star topology. 279 troubleshooting. 293 Network wiring system, see Home network wiring system Neutral wire, 6 color, 14, 21 correct connection. 133 service wire to house, 10 NID, see Network Interface Device NM (nonmetalllc) cable, 17.19-20, 36. 38 anchoring, 124 reading. 22 stripping, 23 NM (nonmetalllc) sheathed cable, 154, 176-177 installing. 178-183

installing inside finished walls. 182-183 kitchen wiring, 228-231 outdoor wiring, 251-253, 258-259 room addition wiring, 200-203 see also: Feeder cable, UF cable o

Older electrical service, 10

evaluating, 134-137 receptacle types. 62. 64, 66-67 wiring, 20-21. 26-27, 126 100-amp electrical service, 27 120/240-volt circuit breaker connection, 191 120-volt circuit breaker connection, 190-191 Outdoor power, cable tor, 20 electrical box tor, 37 receptacle (or, 74, 132 Outdoor wiring, 248-267 circuit map, 156 codes, 145

cutaway view ot outdoor circuit. 250-251 diagram view of circuit, 252-253 digging trenches. 256-257 evaluating electrical loads, 150 installing conduit. 258-261 installing electrical boxes, 258-261 low-voltage. 268-271 motion-sensor light fixture, 249-253,

264-265 planning circuit. 254-255 see also: Cable. Conduits, Electrical box. Receptacles, Switches Outlet, see: Receptacle Output port, 275

troubleshooting, 292-293 Overload. 14.143, 190 preventing. 10, 26. 28-29. 34, 63

Permits lor wiring projects. 139, 141,152.

204. 232 Pigtail. 154

connecting wires with, 25 Pilot-light switch. 49, 54

wiring symbol, 153 Planning wiring projects, 138-165 code requirements. 138,141-143 drawing wiring diagram. 139,152-153 evaluating electrical load. 139,148-151 examining main service. 138,140 planning room addition circuits, 204-205 preparing for inspections. 139, 146-147 steps in planning, 138-139 Plug, adapter. 130 altering prongs. 9. 67 -and-play connections. 273, 277 cracked. 131 falls out of receptacle. 63 flat-cord plug. 96 grounding prong, 63 polarized, 17, 96 quick-connect plug, 96 repairing or replacing, 63, 96-97.131 round-cord plug, 96-97 types, 96 Plug fuse, see: Fuse Polarity, testing receptacle for, 70-71 Polarized plug, 17, 96 Polarized receptacle, 17, 70, 72

illustration, 17, 62: 66 Ports, input and output. 275 troubleshooting, 292-293

Power, and circuit capacity, 34-35 distribution modules, 275. 283

mounting and connecting, 291 shutting off, 8, 13. 26-27 source and supply roules, 10-11 testing for, 18. 32-33. 38, 40. 70-71. 93, 116

Power demand, calculating, 34-35 definition, 34 Power failure, see: Blown fuse, Tripped circuit breaker Powerstrip, multi-outlet, 69.132 Power surge. 69 Programmable switch, 51, 55 Programmable thermostat. 106

installing, 110 Pull-out fuse block. 27, 29 Push-button switch. 42 Push-in fitting, 24, 44. 63 PVC (poly-vinyl chloride). 154 conduit, 185, 255, 258 electrical boxes. 170. 258

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