| A | B |
|---|
| carbon monoxide detector | a device that detects the presence of carbon monoxide (CO) gas to prevent carbon monoxide poisoning; CO is a colorless and odorless compound produced by incomplete combustion |
| cord-and-plug connection | an installation technique in which electrical appliances are connected to a branch circuit with a flexible cord with an attachment plug; the attachment plug end is plugged into a receptacle of the proper size and type |
| counter-mounted cooktop | a cooking appliance that is installed in the top of a kitchen countertop; it contains surface cooking elements, usually two large elements and two small elements |
| dual-element time-delay fuses | a fuse type that has a time-delay feature built into it; this fuse type is used most often as an overcurrent protection device for motor circuits |
| electric range | a stand-alone electric cooking appliance that typically has four cooking elements on top and an oven in the bottom of the appliance |
| hardwired | an installation technique in which the circuit conductors are brought directly to an electrical appliance and terminated at the appliance |
| heat pump | a reversible air-conditioning system that will heat a house in cool weather and cool a house in warm weather |
| hydronic system | a term used when referring to a hot water heating system |
| in sight of | when one piece of electrical equipment is visible and not more than 50 feet (15 m) from another piece of equipment |
| interconnecting | the process of connecting together smoke detectors or carbon monoxide detectors so that if one is activated, they all will be activated |
| inverse time circuit breaker | a type of circuit breaker that has a trip time that gets faster as the fault current flow wing through it gets larger; this is the circuit breaker type used in house wiring |
| jet pump | a type of water pump used in home water systems; the pump and electric motor are separate items that are located away from the well in a basement, garage, crawl space, or other similar area |
| nameplate | the label located on an appliance that contains information such as amperage and voltage ratings, wattage ratings, frequency, and other information needed for the correct installation of the appliance |
| smoke detector | a safety device that detects airborne smoke and issues an audible alarm, thereby alerting nearby people to the danger of fire; most smoke detectors work either by optical detection or by ionization, but some of them use both detection methods to increase sensitivity to smoke |
| submersible pump | a type of water pump used in home water systems; the pump and electric motor are separate items that are located away from the well in a basement, garage, crawl space, or other similar area |
| thermostat | a device used with a heating or cooling system to establish a set temperature for the system to achieve; they are available as line-voltage models or low-voltage models; some thermostats can also be programmed to keep a home at a specific temperature during the day and another temperature during the night |
| transformer | the electrical device that steps down the 120-volt house electrical system voltage to the 16 volts a chime system needs to operate correctly |
| wall-mounted oven | a cooking appliance that is installed in a cabinet or wall and is separated from the counter-mounted cooktop |
