david
Senior Member
- Location
- Pennsylvania
"Please quit telling people to oversize ocpd on AC branch and feeder circuits"
I am not objecting to the closing of the since it was not my responsibility to make that decision.
I am not sure why this thread was closed,
The OP wrong and also passionate. He made a statement that no one is doing it that way. Well I too am from PA. and all the HVAC guys that I know are doing it that way
Also just as a note the plans that I review from electrical engineers from W-Mart to hospitals have had conductors sized from the nameplate Min circuit ampacity with voltage drop calculated into the sizing of these conductors.
Back in 1990 when I started inspecting this information wasn?t readily available in the form of a nameplate with the max over-current protection and min circuit ampacity calculated by the manufacture. I think giving careful consideration to the code sections would have had the same result though.
A final note when I?m told that someone talked to the manufacture and the manufactured said this or that it is usually someone talking to their supplier and the manufactured is most often not aware of the conversation.
Edit:
Actually am not sure it was 1990, not exactly sure what year they started posting that on the name plate. Started reading the code back in the late 70?s been in the trade to long to remember when things like this changed
I am not objecting to the closing of the since it was not my responsibility to make that decision.
I am not sure why this thread was closed,
The OP wrong and also passionate. He made a statement that no one is doing it that way. Well I too am from PA. and all the HVAC guys that I know are doing it that way
Also just as a note the plans that I review from electrical engineers from W-Mart to hospitals have had conductors sized from the nameplate Min circuit ampacity with voltage drop calculated into the sizing of these conductors.
Back in 1990 when I started inspecting this information wasn?t readily available in the form of a nameplate with the max over-current protection and min circuit ampacity calculated by the manufacture. I think giving careful consideration to the code sections would have had the same result though.
A final note when I?m told that someone talked to the manufacture and the manufactured said this or that it is usually someone talking to their supplier and the manufactured is most often not aware of the conversation.
Edit:
Actually am not sure it was 1990, not exactly sure what year they started posting that on the name plate. Started reading the code back in the late 70?s been in the trade to long to remember when things like this changed
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