Full Description

These requirements cover electrically-actuated transmitters intended for permanent installation and use in ordinary indoor locations in accordance with the NationalElectrical Code, NFPA 70, and the National Fire Alarm Code, NFPA 72.

A transmitter covered by these requirements consists of a unit assembly of related electrical and mechanical parts in an enclosure. Installation wiring terminals areincluded for the connection of power supply circuits routed through the transmitter by a prescribed scheme of circuiting to terminals for the connection of conductorsof circuits to separate transmitter actuated devices and to circuits of a system-control unit and other indicating devices.

An electrically-actuated transmitter having a pre-wound signaling mechanism and equipped with an integral part to permit manual actuation, and similar combinationdevices, will be evaluated with regard to compliance with the applicable requirements for both electrically-actuated transmitters and manually-actuated signalingboxes.

Product Details

Edition: 7th Published: 03/29/2000 Number of Pages: 50