Fire pump start at power frequency

2024-06-30View Original

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Dear teachers: According to the requirements of Article 11.0.14 in the “Technical Code for Fire Water Supply and Fire Hydrant Systems” (GB 50974-2014), during a fire, fire pumps must operate at normal frequency; they should be directly started at normal frequency； When the power is high, star-delta and autotransformer starting methods are recommended, while active device starting should be avoided. By \"high power\" mentioned here, what exactly does that refer to?

Reply #22024-06-30

When the power of the fire pump is greater than 11 kW, it is advisable to use a star-delta or autotransformer starter. .

Reply #32024-07-22

Excuse me, in which standard is 11KW specified?

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Fire pump start at power frequency

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