Blast from the past.

Status
Not open for further replies.

480sparky

Senior Member
Location
Iowegia
Here's some excepts from the 1921 American Electricians Handbook, Terrell Croft.



Ever find yourself without a proper ground wire clamp?

1921A.jpg


(MacGyver would be proud!)




Anyone ever come across one of these?

1921B.jpg





If you ever need to parallel wires:

1921C.jpg


(What do they consider small/large conductors??)




Have you ever seen one of these boxes?

1921D.jpg





DIY light dimmers! (Stick one of these puppies in the dining room and see if the HO will go for it!)

1921E.jpg





Ever wonder what the dimensions of a light socket thread is?

1921G.jpg





How to transition properly from knob & tube to a raceway?.

1921H.jpg





Ampacity of iron pipe. Seriously. Iron pipe.

1921F.jpg
 

mdshunk

Senior Member
Location
Right here.
I've seen ground wires connected to the water line like that picture. They're normally always soldered after wrapping like the pic.
 

iwire

Moderator
Staff member
Location
Massachusetts
Nice thread Ken. :cool:

480sparky said:
Ampacity of iron pipe. Seriously. Iron pipe.

1921F.jpg
[/COLOR][/B][/SIZE]

This one really made me laugh, I like the text.

heavy weight pipe will carry a little greater current then shown

How much is a 'little greater'?
 

iwire

Moderator
Staff member
Location
Massachusetts
So does anyone know if 1" black iron is cheaper then 4/0 Copper?

Looks like 1" would work for a 225 amp feeder. :grin:
 

cadpoint

Senior Member
Location
Durham, NC
The 6th illuistration, really got me thinking, and things sure have standardize since then.

Seems one party in the Socket race one won heres some information I found on that, frankly I thought someone here owns this page and presented the same here on the forum earlier this year.

Enjoy just the same.

Gezz I miss drafting... sometimes ...
 

mxslick

Senior Member
Location
SE Idaho
480sparky said:
Ampacity of iron pipe. Seriously. Iron pipe.

1921F.jpg


I'm not surprised by this table, as pipe is commonly used to construct substation bus work. :cool:

I think aluminum and steel are the common materials though.
 
Status
Not open for further replies.
Top