A 25 hp 208v 3 phase fire pump motor is 175 ft from the service. What size conductor must you install to the fire pump motor controller.
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Fire pump control panel wiring diagram pdf. Of stationary pumps for fire protection and nfpa 70 national electrical code. Heres a 3 phase example. Wiring from the fire pump controller to the fire pump motor not installed through a building as covered in 6956b must be in rigid metal conduit intermediate metal conduit electrical metallic tubing liquidtight flexible metal conduit liquidtight flexible nonmetallic conduit type b listed type mc cable with an impervious covering or. World class manufacturer of fire pump controllers when theres a call to start a fire pump in an emergency situation you need a fire pump controller that you can count on to start every time without fail because life safety depends on it. The suction line should never include a strainer. In nfpa 20 fire pump suction diameters are identified based on the maximum velocity at 150 of nominal flow rate 46msec.
The devices within a fire pump controller panel perform such functions as receiving signals from alarm devices such. Each pump should have an individual control panel. The controller shall be listed by underwriters laboratories inc in accordance with ul218 standard for fire pump control lers csa and canadian standards association csa c222 standard for industrial control equipment culus and approved by factory mutual. There should be a rising stem valve between the suction line and suction collector of the fire pumps. See figure 695 2 un695 02 695 07 01cdr. The fire pump motor controller is 150 ft from the service.
Eatons fire pump controllers are designed and manufactured in accordance with the strictest fire protection electrical and insurance codes in the. Terminals are rated 75ºc. Understanding fire pump controller applications fire pump controllers are control panels containing electrical components such as circuit breaker switches relays and other devices dedicated to the operation of fire pumps.
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