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Building electric fire hidden trouble alarm power distribution method and its circuit

A power distribution circuit, electrical fire technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of inability to alarm circuit connection, high operating costs, difficult maintenance, etc., to avoid casualties and economic losses, work The effect of high reliability and convenient centralized monitoring

Inactive Publication Date: 2006-09-06
GUIYANG AL-MG DESIGN & RES INST
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Problems solved by technology

Although circuit breakers are installed on each type of load, these circuit breakers usually only use circuit breakers with short-circuit protection or overload protection functions, which cannot be connected with existing conventional alarm circuits, and it is difficult to achieve centralized monitoring and electrical fire protection. Automatic alarm for hidden dangers; however, the existing automatic alarm distribution system for electrical fire hidden dangers in buildings generally has the disadvantages of complex structure, large investment, high operating costs, and difficult maintenance
Therefore, when the existing power distribution technology for building electrical fire hidden danger alarm is in use, its use effect is still not ideal.

Method used

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  • Building electric fire hidden trouble alarm power distribution method and its circuit

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Embodiment Construction

[0011] Embodiments of the present invention: when implementing the power distribution method of building electrical fire hidden danger alarm of the present invention, according to the status of the load, the load is divided into three-phase symmetrical load, three-phase asymmetrical load, single-phase lighting load and single-phase lighting load. There are four situations of phase socket load, and different circuit breakers are used for each situation, but all circuit breakers are circuit breakers with triple protection of short circuit, overload and leakage, and the circuit breaker should also have an output device for switching status signals; The output signals of each switch state are connected to the alarm control circuit with people on duty day and night; then the overload protection current and leakage protection current are reasonably adjusted according to the specific load of the load. In this embodiment, the leakage current of the circuit breaker 6 is set to be less th...

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Abstract

The present invention discloses a building electric fire hazard alarm distribution method and circuit. It contains all breaker having short circuit, overload and electrical leakage ternary protection and auxiliary contact output, connecting auxiliary contact of each breaker to alarm control circuit, when electric fire hazard occurrence circuit simultaneously sending audible and visual alarm signal and indicating out concrete position. The present invention has simple structure, easy maintenance, higher operational reliability, and convenient centralized monitoring advantages.

Description

technical field [0001] The invention relates to an alarm circuit for electrical fire hidden dangers, in particular to a power distribution method and circuit for alarming electrical fire hidden dangers in buildings. Background technique [0002] According to statistics, among the total number of fire hazards in our country, electrical fire hazards account for 30% of the total number of electrical fire hazards, and account for the first place among the causes of fire hazards. Most electrical fire hazards are caused by short circuits, especially arcing short circuits to ground. Due to the great danger of electrical fire hazards in buildings and the dense population, it brings a lot of inconvenience to the fire fighting work, especially the buildings are getting higher and higher now, and the fire fighting work is also more difficult. Therefore, the country stipulates in the 2005 edition of "Code for Fire Protection Design of High-rise Buildings" that high-rise buildings must ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02H7/26H02H3/04H02J13/00
CPCY04S10/20Y02E60/725
Inventor 刘学义
Owner GUIYANG AL-MG DESIGN & RES INST
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