Index IndexAFCI, location requirements, 121
Air-conditioning
circuit maps for 240-volt receptacles for window units, 19
circuit needed for, 55
Amperage
measuring, 96–97
receptacles and, 118
service panels and, 28–29
Appliances
dishwashers
circuit needed for, 65
connecting receptacle for, 71
food disposers
circuit needed for, 65
connecting GFCI receptacle and switch for, 69
connecting receptacle for, 71
microwaves
circuit needed for, 65
connecting, 70
ranges
circuit map for 120/240-volt receptacle, 18
circuit needed for, 65
installing 120/240-volt receptacle for, 70
small
circuit maps for, 17
circuit needed for, 65
connecting receptacles for, 68
window air conditioners, circuit map for 240-volt receptacles for, 19
Backup power supply
choosing a generator for, 83, 84
cord-connected transfer switches, 85
generator tips, 85
maintaining and operating automatic standby generator, 87
operating manual system, 87
overview of, 82
running & maintaining, 86
typical system, 84
Baseboard heaters
circuit maps for 240-volt, 18
connecting 240-volt, 63
Basic problems and solutions, 9
Bathrooms
circuit for, 54
connecting GFCI receptacle and, 59
diagram for circuit map for 15-amp, 120-volt circuit for bathroom & closet, 56–57
Bedrooms, diagram for circuit map for 15-amp, 120-volt basic lighting/ receptacle circuit for, 56–57
Bonding. see Grounding & bonding an upgraded system
Cable television jacks
circuit needed for, 55
circuit shown on wiring diagram, 57
Cables, non-metallic (NM), 115–117
Ceiling fan/light fixture combinations
circuit maps for units controlled by ganged switches, 20
connecting, 61
Ceiling fans, connecting switches for, 60
Ceiling fixture, connecting surface-mounted, 72
connecting circuit breakers, 32–33
description of parts of, 30–31
installing subpanels, 34–37
overview of, 28–29
upgrading
locating, 40
overview of, 38–39
replacing main service panels, 41–45
Circuit breakers, installing, 32–33
Circuit maps
ceiling fans/light fixtures controlled by ganged switches, 25
diagrams for
bedroom and bathroom wiring, 56–57
kitchen wiring, 66–67
double receptacle circuits with shared neutral wire, 16
double receptacle small-appliance with GFCI & separate neutral wire, 17
double receptacle small-appliance with GFCI & shared neutral wire, 17
four-way switches and light fixture, 23–24
ganged single-pole switches controlling separate light fixtures, 19
ganged switches controlling vent fan and light fixtures, 20
GFCI receptacles
multiple-location protection with switch & light, 13
single-location protection, 12
multiple four-way switches controlling light fixtures, 24
120/240-volt range receptacle, 18
120-volt duplex receptacles wired in sequence, 12
overview of, 11
single-pole switch & light fixtures, 13–15
switch-controlled split receptacles, 15–16
three-way switches & light fixtures, 20–21
three-way switches & light fixtures with duplex receptacle, 22
three-way switches & multiple light fixtures, 22–23
240-volt appliance receptacles, 19
240-volt baseboard heaters, thermostat, 18
Circuit tester, touchless, 95
Circuits, selecting backup, 89
Circuits, short, 102–103
Clearances, 110–111
Codes
current wiring methods, 114
general requirements, 105–111
National Electrical Code, inspections and knowledge of, 104
overview of, 104
for range, 18
requirements for rooms without overhead lights, 15
for window air conditioner, 19
Computers, circuit needed for, 54
Continuity
neutral & equipment grounding wire, 109
testing for, 99
Current, measuring, 97
DC lighting circuit, how to wire, 77–81
Device boxes, 122–124
Diagnostic tools, 94–95
Dishwashers
circuit needed for, 65
connecting receptacle for, 71
Disposers
circuit needed for, 65
connecting GFCI receptacle and switch for, 69
connecting receptacle for, 71
Electrical box fill chart, 124
Electrical code. see Codes
Electrical panels
general requirements for, 105–106
inspecting for proper grounding, 112
installing subpanels, 34–37
overview of, 28–29
Electrode wires, 113
Enclosures, 122–123
Feeders, 113
Food disposers
circuit needed for, 65
connecting GFCI receptacle and switch for, 69
connecting receptacle for, 71
Four-way switches, circuit maps for, 23–24
Framing member chart, 115
Generators
on-demand, 83
maintaining and operating automatic standby, 87
standby, 93
tips for, 85
transfer switches for, 85
GFCI receptacles
circuit maps for
double receptacle small-appliance, 17
multiple-location protection, 13
single-location protection, 12
connecting bathroom, 59
installing
disposer switch and, 69
two switches for recessed lights and, 69
location requirements, 120–121
Grounding & bonding
at service panels and subpanels, 112
upgraded system
ground rod installation, 49
how to bond metallic piping, 47–48
how to install a grounding electrode system, 49–51
overview of, 46
tips for, 51
tips for grounding the panel, 48
Grounding electrodes, 113
Grounding wires, 52
Heaters
circuit map for thermostat and 240-volt baseboard, 18
circuit needed for, 55
connecting 240-volt baseboard, 63
connecting 240-volt blower, 62
Hot wires, 52
Inspections, preparing for, 104
Junction boxes, 122–124
Kitchen remodels
circuits likely wanted, 64–65
diagrams for circuit maps, 66–67
installing under-cabinet lights, 73
wiring connections, 68–73
wiring diagram for, 66–67
see also Appliances
Light fixtures
box installation, 122
circuit maps for
ceiling fans/light fixtures controlled by ganged switches, 25
four-way switches and, 23–24
ganged single-pole switches controlling separate, 19
ganged switches controlling vent fan and light fixtures, 20
GFCI receptacle, switch & light fixture wired for multiple-location protection, 13
multiple four-way switches and, 24
single-pole switch and, 13–15
three-way switches & multiple, 22–23
three-way switches and, 20–22
connecting, 59
ceiling fan/light fixture combinations, 61
GFCI and two switches for recessed, 69
installing under-cabinet, 73
Main service panels
overview of, 28
replacing
locating, 40
overview of, 38–39
steps in, 41–45
safety and, 6
Microwaves
circuit needed for, 65
connecting, 70
clamp-on, 96
digital autoranging, 94, 95, 96
overview of, 96
National Electrical Code (NEC), 104 see also Codes
Non-metallic (NM) cables
installation of, 116–117
maximum ampacity, 115
rules for, 115
Open neutrals
overview of, 100
possible symptoms of, 100
troubleshooting, 101
Permits. see Codes
Plug-in tester, 95
PV panels, mounting, 76
Ranges
circuit map for 120/240-volt receptacle, 18
circuit needed for, 65
installing 120/240-volt receptacle for, 70
Receptacles
amperage and, 118
circuit maps for
double receptacle small-appliance with GFCI & separate neutral wires, 17
double receptacle small-appliance with GFCI & shared neutral wire, 17
double with shared neutral wire, 16
GFCI receptacle, switch & light fixture wired for multiple-location protection, 13
GFCI receptacle wired for single-location protection, 12
light fixtures with three-way switches and duplex receptacle, 22
switch-controlled split, 15–16
240-volt appliance receptacles, 19
connecting, 61
dishwashers, 71
food disposers, 71
small appliance, 68
switched, 61
switches for stairway lights and, 61
installing
20-amp, 120-volt for microwaves, 70
kitchen countertop, 119
120/240-volt for ranges, 70
in rooms, 118
measuring at, 97
Room additions
circuits likely wanted, 54–55
wiring diagram for, 56–57
Safety
overview of, 6
tips for, 7–9
Service drops, 110–111
Service entrance head, safety and, 6
Service grounding at two buildings using four-wire feeder, 113
Service panels
connecting circuit breakers, 32–33
grounding & bonding at, 112
installing subpanels, 34–37
overview of, 28
safety and, 28
upgrading
locating, 40
overview of, 38–39
replacing main service panels, 41–45
Single-pole switches
connecting, 59
connecting timer and, 58
Single-pole switches & light fixtures
circuit map for ganged controlling separate, 19
circuit maps for, 13–15
Small appliances
circuit maps for, 17
circuit needed for, 65
connecting receptacles for, 68
Solar light circuit
how to wire a DC lighting circuit, 77–81
mounting PV panels, 76
overview of, 74
schematic diagram for, 75
Stairway lights, connecting switches for receptacle and, 60
Subpanels
grounding & bonding at, 112
installing
overview of, 34
planning, 35
steps in, 35–37
overview of, 28
room additions and, 54–55
Switched receptacles, connecting, 61
Switches
circuit maps for
ceiling fans/light fixtures controlled by ganged, 25
ganged controlling vent fans and light fixtures, 20
GFCI receptacle, switch & light fixture wired for multiple-location protection, 13
light fixtures and four-way, 23–24
light fixtures and multiple four-way, 24
light fixtures with duplex receptacle and three-way, 22
single-pole ganged controlling separate light fixtures, 19–20
single-pole switch & light fixtures, 13–14
switch-controlled split receptacles, 15–16
three-way & light fixture, 20–22
three-way & multiple light fixtures, 22–23
connecting
ceiling fans, 60
GFCI and two switches for recessed lights, 69
GFCI receptacle and disposer, 69
receptacle & stairway light, 60
single-pole, 59
three-way, 72
timer and single-pole, 58
three-way, testing, 99
installing manual, 88–93
Telephone outlets, circuit for, 55
Testers, 95
Thermostats
circuit maps for, 18
circuit needed for, 5
connecting 250-volt, 62
Three-way switches
circuit maps for
light fixtures and, 20–21
light fixtures with duplex receptacle and, 22
multiple light fixtures and, 22–23
connecting, 72
testing, 99
Timers, connecting single-pole switches and, 58
Troubleshooting
basic problems and solutions, 9
diagnostic tools & testing and, 95–99
open neutrals, 100–101
overview of, 95
short circuits, 102–103
240-volt baseboard heaters
circuit map for thermostat and, 14
connecting, 63
240-volt blower heaters, connecting, 62
240-volt thermostats, connecting, 62
Under-cabinet lights, installing, 73
Vent fans
circuit maps for ganged switches controlling light fixtures and, 20
connecting, 59
Voltage, measuring, 98
Volume unit chart, 123
Window air conditioners, circuit map for 240-volt receptacles for, 19
Wire gauge
capacity and, 109
connectors and, 107
Wires
color coding, 109
connecting to terminals, 108
extended from boxes, 108
size chart, 109
splicing, 107
volume unit chart, 123