a.c. calcultions
- Thread starter 221122
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- Bremerton, Washington
Re: a.c. calcultions
Not sure what you mean by A/C. Are you asking about short circuit and AIC calcs or something else? Short circuit calcs are not complicated, go to Bussman.com, they have a lot of information and a short circuit calculator you can download.
Not sure what you mean by A/C. Are you asking about short circuit and AIC calcs or something else? Short circuit calcs are not complicated, go to Bussman.com, they have a lot of information and a short circuit calculator you can download.
Re: a.c. calcultions
hey tom, air condition branch ckt over current protection /short -ground fault.
I will go and check out buss web site.
thanks for the reply!!
I have done my calculations on the manufactures data plate i.e. 250% inverse cb, 125% fla,115% disconnect(cb) ect.
I was told to base all calculations off data plate with no % changes( manufacture has included all this in there data).
simply put wire,o.c. protection, is all done just size accordding, sounds easy but the info I recieved from AHJ say other things.
how it in washington?
thanks and good talking at yah!!
hey tom, air condition branch ckt over current protection /short -ground fault.
I will go and check out buss web site.
thanks for the reply!!
I have done my calculations on the manufactures data plate i.e. 250% inverse cb, 125% fla,115% disconnect(cb) ect.
I was told to base all calculations off data plate with no % changes( manufacture has included all this in there data).
simply put wire,o.c. protection, is all done just size accordding, sounds easy but the info I recieved from AHJ say other things.
how it in washington?
thanks and good talking at yah!!
bphgravity
Senior Member
- Location
- Florida
Re: a.c. calcultions
Using the nameplate information to wire and install equipment for A/C units is fine.
Basically, you are permitted to wire per the value of the minimum circuit ampacity and size the OCPD to the maximum ampacity value.
Otherwise, Article 440.12(A)(1), 440.22(A), and 440.32 should be used.
[ April 30, 2004, 04:25 PM: Message edited by: bphgravity ]
Using the nameplate information to wire and install equipment for A/C units is fine.
Basically, you are permitted to wire per the value of the minimum circuit ampacity and size the OCPD to the maximum ampacity value.
Otherwise, Article 440.12(A)(1), 440.22(A), and 440.32 should be used.
[ April 30, 2004, 04:25 PM: Message edited by: bphgravity ]
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