DATE：2017-03-16
For the prevention of single phase earthing of electrical fire caused by short circuit, cut off the power supply when you require the installation of residual current operated, cause public disorder, and so on, alarm protection devices or automatic fire control system to take timely measures. Installation to prevent electrical fire caused by single-phase earth fault alerts or monitoring devices should be based on the relevant area of the site, properly divided into zones, zone installation.
Others due to power failure may cause significant economic losses and the adverse social effects of electrical installations or facilities, can also refer to electric fire protection measures, or install an alarm or automatic control device of residual current operated protective devices. Such as:
Public emergency power, channel lighting;
Ensuring public safety equipment;
Fire-fighting equipment of the power supply such as fire-proof elevator, fire pumps, fire lighting;
Alarm power supply;
Special equipment and locations of other blackouts are not allowed.
