rbaake Posted August 21, 2011 Report Posted August 21, 2011 Can anyone explain this? Download Attachment: InJour.jpg 117 KB
Ben H Posted August 21, 2011 Report Posted August 21, 2011 Maybe their grid is not designed for a bunch of 200a loads. I can't imagine a lot of places large enough to even need a 200a box in the city. Could be a city restriction. Just a guess.
ghentjr Posted August 21, 2011 Report Posted August 21, 2011 When high rise building have many panels which are fed through conduit there may be a heat issue and therefore a reduced load requirement. Just a guess.
Scottpat Posted August 21, 2011 Report Posted August 21, 2011 Kind of long the same lines as to why some foods/drugs/chemicals cause cancer only in California!
allseason Posted August 21, 2011 Report Posted August 21, 2011 From what I hear you cannot use PVC drain waste and vent in NYC, all metal and lots of cast iron. Has to do with toxins when it burns. Gotta look out for those 7 to 8 million people.
caryseidner Posted August 21, 2011 Report Posted August 21, 2011 From what I hear you cannot use PVC drain waste and vent in NYC, all metal and lots of cast iron. Has to do with toxins when it burns. Gotta look out for those 7 to 8 million people. Used to be the same in many areas around here, but it had to do with politics as the pipefitters union is based in Chicago.
Marc Posted August 21, 2011 Report Posted August 21, 2011 From what I hear you cannot use PVC drain waste and vent in NYC, all metal and lots of cast iron. Has to do with toxins when it burns. Gotta look out for those 7 to 8 million people. Wasn't that ruling meant for ABS only? Marc
allseason Posted August 21, 2011 Report Posted August 21, 2011 Marc, Not sure, it is something I have heard through my travels.
Darren Posted August 21, 2011 Report Posted August 21, 2011 I don't know about residential, but commercial buildings in NYC did not allow romex or BX; had to be conduit.
allseason Posted August 22, 2011 Report Posted August 22, 2011 I don't know about residential, but commercial buildings in NYC did not allow romex or BX; had to be conduit. Pretty sure it's the same in Chicago, residential and commercial.
Bill Kibbel Posted August 22, 2011 Report Posted August 22, 2011 NM cable is permitted in NYC for residential buildings less than 3 levels above grade.
John Kogel Posted August 22, 2011 Report Posted August 22, 2011 One reason for metal pipe is to slow the spread of fire thru an apartment building. I think that applies to everywhere, not just NYC. I will guess that NYC required extra testing for approval of that panel for more than 100 amps, and the CH people just said screw yous, we'll just downrate the panel rather then spend that extra time and cash.
allseason Posted August 23, 2011 Report Posted August 23, 2011 One reason for metal pipe is to slow the spread of fire thru an apartment building. I think that applies to everywhere, not just NYC. I will guess that NYC required extra testing for approval of that panel for more than 100 amps, and the CH people just said screw yous, we'll just downrate the panel rather then spend that extra time and cash. It's "Screw yous guys"
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now