NEC, 1930's and older PDF

[480sparky]

If you're referring to the * note, I can't find any similar language from '33-'37.

 

[kwired]

see attachment

Is there more to that? Today it would only apply to dwelling units and specific conditions, that looks like possibly applies to anything that is single phase three wire. - ADD service and feeder wise anyway.

 

[Wire-Smith]

If you're referring to the * note, I can't find any similar language from '33-'37.

in the old books I can no longer find a copy of it was a table called something like diversification, last table in the section. I don't remember what year.

 

[480sparky]

I can only trace that language back to Chapter 10 Table 1a of the 1956.

 

[Wire-Smith]

I can only trace that language back to Chapter 10 Table 1a of the 1956.

Thanks,
I will read back through the reports better, looking at it now maybe this was just when they allowed the six disconnect exception, where you pretty much don't provide overcurrent protection. I don't have the time right now but I will give you an update probably this weekend.

 

[480sparky]

It appears about the same time as the current 'small conductor rule', which hit the books in '59. That appears to be a reaction to some new insulation types.

 

[tortuga]

I can only trace that language back to Chapter 10 Table 1a of the 1956.

You guys are fast, I can confirm this text is not in my '53 book and is in the '56.

 

[Wire-Smith]

Is there more to that? Today it would only apply to dwelling units and specific conditions, that looks like possibly applies to anything that is single phase three wire. - ADD service and feeder wise anyway.

that's it, see rest of table in attachment

 

[blkmagik21]

Somewhere in my archives I've got the 1897 - 1920 in PDF. I'd have to scrounge around to find them, though.

I would so love to have those


Sent from my iPhone using Tapatalk

 

[Wire-Smith]

attached is a 33' report of the electrical committee, but I'm confident now they are talking about the exception that's in 230 now.


Thanks everyone.
does anyone happen to have report on proposals or comments for 56'? free access has an advanced report that I don't see a mention of this is.
has anyone tried requesting old documents like that from nfpa?

 

[480sparky]

I would so love to have those


Sent from my iPhone using Tapatalk

I can't find a way to upload them any more. Everywhere I've uploaded them in the past.... end up with just an 'error in file' message.

 

[kwired]

I can't find a way to upload them any more. Everywhere I've uploaded them in the past.... end up with just an 'error in file' message.

Share from some other site always works better than uploading anything to this site.

 

[480sparky]

Share from some other site always works better than uploading anything to this site.

I've tried several sites. They all either just stop responding, or wait for hours then state there was an error.

 

[blkmagik21]

Email?


Sent from my iPhone using Tapatalk

 

[480sparky]

Email?


Sent from my iPhone using Tapatalk

Still too large of a file.

 

[MTW]

For the history buffs, 1881 to 1918.

It's one zip folder 452MB. Will be up for a couple weeks, then removed to reclaim my space.

Got any others to share, using this method?

 

[480sparky]

1920 NEC in PDF.

 

[blkmagik21]

Thank you!

You wouldn’t happen to have 1939-1945 would you?


Sent from my iPhone using Tapatalk

 

[480sparky]

Just the books themselves... not in pdf.

 

[blkmagik21]

I need to find and buy a set of books from that era. Because I do so much work on those government houses. And get told by inspectors I can’t reconnect a lot of the older stuff when I change out a panel or do a remodel. But if I can show that it was indeed at the time code compliant then they will let me keep the old stuff.


Sent from my iPhone using Tapatalk