Hi, everyone, good day!
The general depressurization start mode of motor is soft start and star-triangle start, for fire electrical main pump and jockey pump, are these start modes permitted or not in accordance of NFPA 20? Thank a lot!
Dear Mr Zhang, I believe many here are unable to understand your question.
Am I correct that your question is:
"Does NFPA 20 allow the firewater pump to be started using soft switch (remote start) and star-delta motor starter [3-phase] as triggered by pressure drop in the main header?
Thanks Mr. FaizaI sharin, your explanation is correct！
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