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Frequency converter shall not be used as control equipment for control circuit of fire equipment. There is no requirement for soft start disable. In the actual project, the fire hydrant pump and spray pump are mostly soft start.

But now more people wonder whether the fire pump should be started by frequency conversion under the policy of the new fire protection law. So can soft start be adopted?

First, we need to know why the fire pump can't be started with a frequency converter

In case of fire, the first consideration is that the fire equipment can be started reliably. It is not necessary to consider whether it has any influence on other power equipment at all during startup. According to the theory of probability theory, the more complex the composition of a device, the lower the reliability. The structure of the converter is complex, and it has many powerful functions. But the fire pump doesn't work! For fire pump, the significance of safety is greater than that of energy saving.

And soft starter, there are many people say it can not be used. But in the fire law, there is no clear rule that the fire cabinet can not use soft starter.

Moreover, many manufacturers have used soft starter to pass the certification when they have made CCCF certification for fire cabinets in Shenyang. It is also proved that the fire cabinet can be certified by CCCF with soft starter. So it is not true that the fire pump can not use soft starter.

Soft starter can slowly raise the voltage from zero to rated voltage, so that the starting current of motor during the start-up process will be changed from the past overload shock current can not be controlled to controllable. And the starting current can be adjusted according to the needs. The whole process of motor start-up does not exist impact torque, but smooth start-up operation.

The soft starter of acwell fire pump has helped many customers pass CCCF certification, so it is impossible to use soft starter for fire pump cabinet.