"Mains Service"

[fifty60]

If I recommend a "60A Mains Service" to a customer so that they can operate my industrial machine, what am I actually telling this customer? To me, the best I can do is give a minimum conductor ampacity, and the minimum and maximum feeder OCPD's that they can use with that minimum conductor ampacity.

If I tell someone to get a "60A Mains Service" then can they put a larger than 60A OCPD on it? If I calculate 60A as the minimum feeder OCPD based on the minimum feeder conductor ampacity, and tell the customer that it is their "Mains Service" recomendation, then they really cannot utilize the larger OCPD if needed. I believe I can only get "mains services" in 100A, 150A, 200A anyway.

Marketing wants a "Mains Service" recommendation. I do not think this is correct. I think the best we can give them is minimums conductor ampacities and minimum/maximum OCPD's.

 

[jumper]

If I recommend a "60A Mains Service" to a customer so that they can operate my industrial machine, what am I actually telling this customer? To me, the best I can do is give a minimum conductor ampacity, and the minimum and maximum feeder OCPD's that they can use with that minimum conductor ampacity.

If I tell someone to get a "60A Mains Service" then can they put a larger than 60A OCPD on it? If I calculate 60A as the minimum feeder OCPD based on the minimum feeder conductor ampacity, and tell the customer that it is their "Mains Service" recomendation, then they really cannot utilize the larger OCPD if needed. I believe I can only get "mains services" in 100A, 150A, 200A anyway.

Marketing wants a "Mains Service" recommendation. I do not think this is correct. I think the best we can give them is minimums conductor ampacities and minimum/maximum OCPD's.

Please do not take this wrong/badly, but I really have no clue of what you are asking.

Your use of "mains" is really hard to understand for a plain old guy like me.

Are you asking about a branch circuit, feeder, or service?

A bit of advice: A good reading of Article 100 and learning standard terminology might be a good idea IMPO.

We are all here to learn, so please do not take this as an admonishment.

 

[augie47]

This thread is basically a reword of twpo of you earlier threads:
http://forums.mikeholt.com/showthread.php?t=154569
http://forums.mikeholt.com/showthread.php?t=154507&highlight=

so I am closing it.

I will add, FWIW, if I was provided with any info entitled "Mains Service"I would not give it much credibility.
Any relationship to my SERVICE and your equipment is only remotely related.
As stated earlier, I would be most interested in info such as that required by Art 409.110

sorry jumper.. you beat me to it as I was typing