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Basic Installation Techniques
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alarm system alternating current amperes annunciator applied assembly battery bell building cable channel components conductor connected connector contractor control panel cost designed detection device direct job expense dissipation factor Distribution Tee door contacts drawings Duplex Receptacle electronic energy equipment estimator FIGURE fire-alarm system flexible shaft floor plan Floor-mat flow foil blocks ft3/min gal/min heat detector high-expansion foam hole indicated input installation insulation labor units load located loop magnetic contacts material metal meter motion detector mounted National Electrical Code normally ohmmeter open-circuit operation outlet output overhead phase photoelectric power supply pressure pricing sheet protective circuit raceway Receptacle relay residential resistance scale security/fire-alarm systems sensor shown in Fig signal silent alarm smoke detectors sound Surface-mount switch symbols takeoff telephone dialer temperature terminals thermistor typical usually valve voltage wall window wiring wiring diagram worker-hours zone