Dryer and Range Cords

Status
Not open for further replies.
Dennis Alwon said:
Imo, although I cannot back it up, the neutral must be the size of the equipment grounding conductor at least. This is true for neutrals in feeders and the same for the neutral in services in relation to the grounding electrode conductor.
Click to expand...
I follow this logic, too.
If I'm selecting single conductors for any kind of 120/240 load, guaranteed I'm not running a full-sized neutral over 30 amps

One thing I'll do is make the neutral 1 size larger than the ground so I don't have to identify anything until I'm terminating. I know the largest are hots, the medium is neutral, and smallest is ground. Saves much time
 
Last edited by a moderator:
electrofelon said:
Yeah when I am pulling in pipe and wire, I will often use a 12 white for the neutral of a dryer. I probably would for a range too, although I don't think I've come across that scenario. I know there isn't an allowance in the code to reduce the neutral for the branch circuit to these, but I'm confident a busload of nuns will not die because of it

Edit. To be clear I would use a number 10 neutral for the range.
Click to expand...

I know its not for us to build based on what might happen in the future, and this isn't that common, but construction and remediation companies will often use a 14-30 or 14-50 to 50 amp CS cable to plug their temp power into a range or dryer receptacle.
 
Just a couple things guys, I guess no one saw the edit but I would do 30 amp white for the range. By "same thing for the range" I meant reduce it, not number 12.

Is there even an allowance to reduce the neutral on a branch circuit? I don't think so.
 
Tulsa Electrician said:
70% rule?
For the netural
Click to expand...
How about this

following loads shall be permitted to have an additional
demand factor of 70 percent applied to the amount in
220.61(B)(1) or portion of the amount in 220.61(B)(2) determined
by the following basic calculations:
(1) A feeder or service supplying household electric ranges,
wall-mounted ovens, counter-mounted cooking units, and
electric dryers, where the maximum unbalanced load has
been determined in accordance with Table 220.55 for
ranges and Table 220.54 for dryers
(2) That portion of the unbalanced load in excess of
200 amperes where the feeder or service is supplied from
a 3-wire dc or single-phase ac system; or a 4-wire, 3-phase
system; or a 3-wire, 2-phase system; or a 5-wire, 2-phase
system
Click to expand...
 
Status
Not open for further replies.
Top