fire alarm round

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Product Description:

alarm bell
1.Have CE certificate
2.can be customized in diffient volt and color
3professional in this field for 17years

warning bell
1) We have electric fire bells in a series of different specifications

2)  Voice in the form of vibrato

3)with intermittent. Resistance to work long hours, no electromagnetic interference. Electrical service life

4)can be based on customer requirements, customized products with different voltage
5) Welcome to E-mail us for further information


sizedia(mm)current(<=ma)power(va)
255508
3758010
41009722
615010025
820010525
1025012530
1230015035


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Q:What is the distance between fire hydrant and standpipe?
Fire in any part of the building should ensure that two water cannons fill the water column and reach the fire area. In addition to the top floor of the building, other parts should not be used double fire hydrant, fire hydrant should be used single outlet.
Q:What are the units of fire hydrants?
Hydrants, officially called fire hydrants, are a type of fixed fire fighting facilities, which control fuel, insulate fire and eliminate fire.
Q:What's the difference between fire hydrant and fire hydrant box?
Fire hydrant is mainly outdoors, no water hose, is convenient for firefighters in the supply of fire engines or water supply or fire engines can not enter the area when the facilities used.
Q:What does the four button of the fire hydrant button mean?
Wire system: fire hydrant button and fire alarm controller signal two bus connection, if you need to achieve direct pump control, you need to fire hydrant button and pump control box using two wire connection;
Q:Is the hand button the same as the hydrant button?
Normally, when the fire alarm button is reported manually, the probability of fire is much larger than that of the fire detector, and there is almost no possibility of false alarm. Because the manual fire alarm button alarm, the starting condition is to manually press the button to start.
Q:What is the distance between fire hydrants?
The spacing of fire hydrants shall be determined by calculation.
Q:What's the meaning of the outdoor ground hydrant type 100?
Type 100 refers to the inlet bore of 100.Hydrants, officially called fire hydrants, are a type of fixed fire fighting facilities, which control fuel, insulate fire and eliminate fire. Indoor fire hydrant and outdoor hydrant.
Q:District floor fire hydrant belongs to the Department of property management
The fire fighting facilities, such as underground fire shafts and fire hydrants, which are arranged on the water supply network and the pipe network, shall be maintained and managed by the water supply department, and the public security fire department shall be responsible for supervision and inspection.
Q:Why do you put an axe in a foreign fire hydrant?
China has not yet advocated, should be afraid of personal attacks, in the United States, guns are free, but in China to take is unthinkable.
Q:How much is the indoor hydrant from the ground?
Indoor fire hydrants should be located in clear and easy to access locations. The height of the bolt from the ground is 1.1m, and the direction of the water outlet should be down or 90 degrees from the wall of the fire hydrant.

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