I read and appreciate the article you sent on Nema and fire pumps.
One concern we have and customers call on regular basis ? why did the NFPA disallow phase converters in the new code?
I have tried to get an answer from NFPA but cannot get anyone to respond. They only thing they say in the notes ? is that Phase converters are unreliable.
We, prior to the change, had been supplying phase converters for Fire pumps for 30 years ? and have had NO failures.
Other mfg?s of converters use their standard converter ? but Ronk was building a special Add-a-Phase designed and tested by fire pump people.
Customers/contractors call weekly as they are putting in a system and only have single phase and they cannot install until the utility puts in the new service ? which costs the owner ? a lot of money and lot of headache trying to get the utility, in some instances, to do.
Like to get some additional clarification on the unreliable issue.
Ni:-?.
One concern we have and customers call on regular basis ? why did the NFPA disallow phase converters in the new code?
I have tried to get an answer from NFPA but cannot get anyone to respond. They only thing they say in the notes ? is that Phase converters are unreliable.
We, prior to the change, had been supplying phase converters for Fire pumps for 30 years ? and have had NO failures.
Other mfg?s of converters use their standard converter ? but Ronk was building a special Add-a-Phase designed and tested by fire pump people.
Customers/contractors call weekly as they are putting in a system and only have single phase and they cannot install until the utility puts in the new service ? which costs the owner ? a lot of money and lot of headache trying to get the utility, in some instances, to do.
Like to get some additional clarification on the unreliable issue.
Ni:-?.