I live in Canada so work off of the CEC, but am interested in any applicable NEC rules that might be related.
50 amp 240v 5-50R receptacle, installer ran a 3c #6 cable for a welder.
Neutral wire is not needed or used.
I've seen 2 different installation methods:
1. Tape off and leave spare conductor floating at both ends
2. Tie spare into neutral bus (since it is a white / identified neutral conductor) at panel and cap off unused conductor at receptacle for future use.
I've searched the forums and the CEC and have come up empty handed. Most responses say to tape and leave floating. I am curious if the second installation method might be better in the event someone decides to swap out the 5-50R to a 14-50R and utilize the neutral. Plus there's the whole induced voltage thing too- anyone checking the spare from the panel or the receptacle would see 50-70v if I left it floating.
Thoughts?
50 amp 240v 5-50R receptacle, installer ran a 3c #6 cable for a welder.
Neutral wire is not needed or used.
I've seen 2 different installation methods:
1. Tape off and leave spare conductor floating at both ends
2. Tie spare into neutral bus (since it is a white / identified neutral conductor) at panel and cap off unused conductor at receptacle for future use.
I've searched the forums and the CEC and have come up empty handed. Most responses say to tape and leave floating. I am curious if the second installation method might be better in the event someone decides to swap out the 5-50R to a 14-50R and utilize the neutral. Plus there's the whole induced voltage thing too- anyone checking the spare from the panel or the receptacle would see 50-70v if I left it floating.
Thoughts?
