In recent years former residence of electric fire work does not fall high, with was 2005 exemple, the hospital of downtown of source of distant of two Jilin province with maximum number of the death in 10 conflagration is especially big head of fire, Shan Hua Nabin house is especially big fire, all be electric fire, about the expert active appeal adopts effective technology to be on guard as soon as possible measure, keep within limits is electric the ascendant impetus of fire, the government also takes seriously very much about the branch, in succession formulate or altered relevant specification standard, the requirement installs system of fire alarm of leakage of electricity in the building. " civil building designs the high level fire prevention is normative " GB50045 - 95 (2005 edition) local edit article 9.5.1, mandatory GB " the installation of protector of movement of odd electric current and move " GB13955-2005 stressed action of odd electric current, the requirement installs supervisory system of fire of movement of odd electric current inside the building. Can say, precaution builds electric fire, the national standard that sets system of fire alarm of leakage of electricity and standard are already basic and all ready (in still concerned other standard is being approved in the newspaper) , will concern a place henceforth system of fire alarm of leakage of electricity of design, application will be increasing. Current, be familiar with this anew model call the police personnel of technology of the design of equipment, construction also less, the bewilderment that encounters in real work is more also, the article is made at this point one peripheral discuss, with period cast a brick to attract jade-offer a few commonplace remarks by way of introduction so that others may come up with valuable opinions.
1, the concerned definition of system of fire alarm of leakage of electricity
Active state level " warning apparatus of movement of fire prevention residual current " GB 14287—93 definition:
Warning apparatus of movement of fire prevention residual current (”) of warning apparatus of abbreviation “ leakage of electricity: When advocate the unit that alarm signal can issue when the residual current in loop exceeds set-point, it calls the police by transformer of leakage of electricity and leakage of electricity controller composition.
As technical development, the warning apparatus of individual leakage of electricity of traditional and dispersive setting evolves into the electric fire supervisory system that runs centrally for network gradually, the country edited in time about the branch standard, new issued GB 14287-2005 standard, will carry out at 2006-06-01. ” of warning apparatus of movement of residual current of fire prevention of “ of new bid brigadier more the name is “ ” of electric fire supervisory system, and fractionize is 3 parts, the 1st part: Electric fire supervisory equipment, the 2nd part: Type of odd electric current is electric fire monitoring detector; The 3rd part: Measure Wen Shi detector of electric fire monitoring. Relevant definition is as follows:
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