Hi all,
I just purchased a Kenmore induction slide-in range and have questions about the electrical connection. The panel has 2 40 amp breakers designated for the range. The house was built in 1989. When I pulled the old range out, it was connected directly to a 3-wire cable that was labeled:
E-90490 (UL) 3 CDRS AWG 6 COMPACT AL TRIPLE E ALLOY TYPE SE CABLE STYLE U TYPE XHHW CDRS 600V
One wire is insulated black, the other is black with a reddish stripe, and the ground is bare.
Reading this link - https://terrylove.com/forums/showthread.php?t=19552 - I think that 1-3 of the exceptions to NEC 250.140 apply, but I'm not sure about #4 or how to check that one.
The range installation states either 3-wire or 4-wire installation is permitted, although it recommends copper. Here's my questions.
1) Does the 3-wire exception apply? How do I validate all 4?
2) What are the cons of using 3 wires vs. 4?
3) Do the wires really need to be copper?
Personally, I'm leaning towards pulling a new line, although I have no idea how painful that would be. It just seems like the right thing to do given the anomolies. Am I being paranoid, and the 3 wire cable will be fine?
Any advice?
Thanks,
K
I just purchased a Kenmore induction slide-in range and have questions about the electrical connection. The panel has 2 40 amp breakers designated for the range. The house was built in 1989. When I pulled the old range out, it was connected directly to a 3-wire cable that was labeled:
E-90490 (UL) 3 CDRS AWG 6 COMPACT AL TRIPLE E ALLOY TYPE SE CABLE STYLE U TYPE XHHW CDRS 600V
One wire is insulated black, the other is black with a reddish stripe, and the ground is bare.
Reading this link - https://terrylove.com/forums/showthread.php?t=19552 - I think that 1-3 of the exceptions to NEC 250.140 apply, but I'm not sure about #4 or how to check that one.
The range installation states either 3-wire or 4-wire installation is permitted, although it recommends copper. Here's my questions.
1) Does the 3-wire exception apply? How do I validate all 4?
2) What are the cons of using 3 wires vs. 4?
3) Do the wires really need to be copper?
Personally, I'm leaning towards pulling a new line, although I have no idea how painful that would be. It just seems like the right thing to do given the anomolies. Am I being paranoid, and the 3 wire cable will be fine?
Any advice?
Thanks,
K