1 members (Scott35),
128
guests, and
12
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
Joined: Aug 2001
Posts: 7,520
OP
Member
|
Hi Scott:
Yes, I certainly agree that it's almost always easy to not work live if at all possible.
We don't normally have splices in a receptacle box. The wires are all connected in the socket's terminals, so a live replacement is not usually practical, unless it's the end of a cable run.
The wires MAY have been securely twisted together before being clamped in the terminals, but it's usually impossible to see until the screw is loosened.
|
|
|
|
Joined: Jun 2001
Posts: 642
Member
|
Replacing recepticle when hot happens a lot. Most businesses donot want to have a circuit down when the are open. Also i have had jerks remove a tag out and turn on a breaker when thier power was off. I usually just use hot work gloves and replace it hot. Sure do get funny looks but no interuptions when doing that.
ed
|
|
|
|
Joined: Sep 2001
Posts: 19
Member
|
Highly recomend pigtailing when possible and demand it on split feeds . example (residentual 14-3 feed to a 2 gang recepticle box grounded conductor shared between the 2 circuits). Does anyone still call the grounded conductor a neutral...drives me nuts!
| )ubli| |
|
|
|
|
Joined: Aug 2001
Posts: 142
Member
|
Originally posted by DUBLIN: Highly recomend pigtailing when possible and demand it on split feeds . example (residentual 14-3 feed to a 2 gang recepticle box grounded conductor shared between the 2 circuits). Does anyone still call the grounded conductor a neutral...drives me nuts! The three wire-edison you just described, does indeed have a neutral, by definition, the neutral conductor has equal potential between IT and all of the ungrounded conductors. This would include 120/240,and a 14-3/wGr would fit the definition of a neutral. 120/208, however a 4-wire Delta with a high leg would not have a neutral, because all ungrounded measured to the' grounded conductor' are not equal.
|
|
|
|
Joined: Nov 2000
Posts: 2,148
Member
|
120/208, however a 4-wire Delta with a high leg would not have a neutral, because all ungrounded measured to the' grounded conductor' are not equal. A 4 wire delta with a high leg is a 120/240 volt system. A 120/208 is a 4 wire wye that does have a neutral. Don(resqcapt19)
Don(resqcapt19)
|
|
|
|
Joined: Aug 2001
Posts: 7,520
OP
Member
|
The IEE in Britain defines a neutral as an earthed (grounded) conductor which is intended to carry current during the normal functioning of equipment.
Dublin: What exactly don't you like about the term NEUTRAL?
|
|
|
|
Joined: Aug 2001
Posts: 142
Member
|
Originally posted by resqcapt19: A 4 wire delta with a high leg is a 120/240 volt system. A 120/208 is a 4 wire wye that does have a neutral. Don(resqcapt19) I said the 4-wire 120/208 certainly does have a neutral you obviously , missed the comma, I used 120/240 and 120/208 as systems that have a neutral, he said a 14-3 wire is a grounded conductor, and not a neutral, I said a 3-Wire Edison cetainly has a neutral. Then I said a 4-wire DELTA does not have a neutral if you go by definition, because of the high-leg 208 to ground. The definition says all voltages measured from the grounded conductor to the ungrounded conducctor are equal Then its a NEUTRAL.
|
|
|
|
Joined: Nov 2000
Posts: 2,148
Member
|
bordew, Your sentence starts out with "120/208," and it really makes no sense as written. It appears to be implying that a 120/208 circuit is a delta. Sorry if I read it wrong.
Where did you find the definition of a "neutral"? It has been a subject of major debates on a number of forums and even the CMP could not aggree on a definition to be included in the NEC. Don(resqcapt19)
Don(resqcapt19)
|
|
|
|
Joined: Aug 2001
Posts: 142
Member
|
Originally posted by resqcapt19: bordew, Your sentence starts out with "120/208," and it really makes no sense as written. It appears to be implying that a 120/208 circuit is a delta. Sorry if I read it wrong.
Where did you find the definition of a "neutral"? It has been a subject of major debates on a number of forums and even the CMP could not aggree on a definition to be included in the NEC. Don(resqcapt19) Sorry if it was confusing,and after rereading it I was confused, too many fragmented sentences, Ha ha, The definition came from Mike Holts book on Understanding the NEC. Oft hand I can only think of two balanced systems, in name only, the Edison 3-wire and 120/208 wye, non-linear loads notwithstanding, at receptacle voltages.
|
|
|
|
Joined: Mar 2001
Posts: 2,056
Member
|
This definition closely resembles that of a multi-wire ckt.
|
|
|
Posts: 806
Joined: October 2004
|
|
|
|