Interior Design Illustrated by Francis D. K. Ching & Francis D. K. Ching

Author:Francis D. K. Ching & Francis D. K. Ching
Language: eng
Format: epub
ISBN: 9781119377207
Publisher: Wiley
Published: 2018-01-22T00:00:00+00:00

Low-voltage circuits carry alternating current below 50 V, supplied by a step-down transformer from the normal line voltage. These circuits are used in residential systems to control heating and cooling systems, window treatments, and remote lighting fixtures. Low-voltage wiring does not require a protective raceway such as conduit.

Electrical systems are designed by electrical engineers. The interior designer often provides information on the location of lighting fixtures, power outlets, and the switches that control their operation. The designer should be aware of the power requirements of an electrical installation so that they can be coordinated with the existing or planned circuits.

Load requirements for lighting fixtures and electrically powered equipment are specified by their manufacturer. The design load for a general-purpose circuit, however, depends on the number of receptacles served by the circuit and how they are used. The National Electrical Code (NEC) should be consulted for these requirements.

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