Summary: The article is passed right " civil building designs the high level fire prevention standard " the understanding of GB50045-2005, introduced supervisory system of CSJ1 electric fire to involve the main function that the standard asks.
Keyword: Odd electric current has protected electric current to protect electric fire monitoring
1, overview
The development as science and technology and flowing water of person the people's livelihood rise smoothly, electric energy serves as important the sources of energy to be applied extensively. Meanwhile, what a lot of insecure ingredients that use phone caused electric fire is ceaseless happen and year after year rises, the fire that causes to electric short circuit at present still does not have very good exploration technology to undertake effective precaution, breaker of system of main support distribution or fuse are in cutty time (a few 10-100ms) right movement, sever fault line, the formation that prevents fire and happen. Arise in distribution system however pass electric current and odd electricity (residual current) often won't cause fire instantly, but circuit crosses bear for a long time to move or have odd electricity all the time, can cause distribution circuitry to give out heat, insulation ageing, cause fire finally. To reduce electric fire hidden danger, be necessary to undertake explore and be controllinged to electric circuit. National level GB50045-95 " civil building designs the high level fire prevention standard " specific provision:
Sex of hazard of the fire inside building of 9.5.1 high levels concentrated place appropriate installs big, staff system of fire alarm of leakage of electricity.
Systems of 9.5.2 fire alarm of leakage of electricity should have following function
Electric current of report of 9.5.2.1 explore track down a leak, cross signal of light of phonate of the signal such as electric current, hair to call the police, accurate newspaper gives fault line address, the change that surveillant breakdown orders.
9.5.2.2 store all sorts of breakdown and operation experiment signal, signal stores time do not answer little at 12 months.
The 9.5.2.3 electric current that cut off circuitry of leakage of electricity to go up, show its state.
Condition of 9.5.2.4 indication system power source
The supervisory system of CSJI electric fire that Changshu switch production limited company develops offerred very good solution to prevent electric fire.
Supervisory system of CSJI electric fire uses advanced microelectronics technology and bus line technology, short-circuit when controlled power supply circuitry, overload, leakage of electricity, when breaking the breakdown such as photograph, low voltage, system but according to functional set action and at call the police or tripping operation.
2, work principle
Supervisory system of CSJI electric fire is in center of fire control control by electric fire supervisory equipment and supervisory equipment installation, collect the odd electric current of each monitor through Modbus spot bus line, cross electric current to reach all sorts of alarm signal, issue smooth alarm signal and control signal.
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