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Recent Aluminum Wire questions

I need to temporarily move some stranded wire lines going to

I need to temporarily move some stranded wire lines going to baseboard heaters. In the current boxes I see that most of the wires pass straight through the box without wire nuts. Is there any issue with me turning off the main, cutting the wires, rerouting the line and wire nutting back together.JA: I'll do all I can to help. How long have you been dealing with this?Customer: are wire nut joints any issue to baseboard heatJA: Do you plan on doing the work yourself?Customer: yesJA: Anything else we should know to help you best?Customer: 220v stranded wire. Most are unbroken. Any problem to splice them?

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Mike G.

Master Electrician

Vocational, Technical or Trade Scho

10,050 satisfied customers
I was doing wiring work in my attached garage. The new 12ga

I was doing wiring work in my attached garage. The new 12ga romex I ran out there was tested hot from the arc-faulted breaker all the way out. Now that I hooked up my outlets, the entire line is dead. I doubled checked the breakers, tripped them, and still nothing. I am perplexed. My suspicion is the Arc Fault breakers which I hate.

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Kevin

Supervising Electrician

Diploma

4,536 satisfied customers
I live in Minnesota and am doing an addition to my home. I'm

I live in Minnesota and am doing an addition to my home. I'm looking for some expert electrician advice. I'm currently working on the electrical in my home and have some questions to make sure I meet the codes.My main electrical circuit box is in the garage. About 10 years ago prior to finishing off the garage, I had routed a feeder circuit from the garage to my basement. I did this in case I added on or had to repair any electrical items in the house. It was fairly easy to do then prior to finishing. I never really used the new box, til now.Feeder wires - I believe are 2 awg aluminum wires. 4 wires. 2 hot, one neutral, and a bare ground.The box downstairs is a 100 amp box with a main breaker and 20 spaces for breakers.Question 1 - can I have a 100 amp breaker in the garage circuit box feeding this feeder box? Any issue with a main breaker in the feeder box?Question 2 - I'm unclear on the wiring. I've got 2 hots which go to the new circuit breaker in the feeder box. The neutral is routed to neutral bar on both boxes. I installed a ground bar in the next box and routed the bare wire to it. This ground bar is screwed to the circuit box. Do I need to ground any of these to either circuit box....I was once told that I might have to, but am unclear on this.Question 3 - do I need to use any electrical grease on the aluminum connections in the feeder box?Question 4 - the feeder box is mounted in my basement, under a set of stairs. Are there any rules with how far it can be off the floor. Right now the top of the box is about 6' off the floor, and the bottom is about 3' off the floor.I'm adding 8-10 circuits off this box. I've got 2 bedroom outlet circuits - both will be arc fault interrupted breakers.Question 5 - Do I need to do any GFI outlets?Question 6 - I have 1 light circuit for both bedrooms - on this circuit I also have 2 outlets (made wiring easier). Do I need to do the arc fault interrupting on this circuit.Question 7 - In each bedroom, I have 1 light switch and a fan switch. In the switch boxes, I have power, neutral, and ground. I was told I needed to have a neutral in each switch box in case in the future the switch was changed to a different type. Did I do this correctly?The addition also has an upstairs and a deck. The upstairs is a kitchen and pantry area.Question 8 - I'm wiring 20 amp outlets in the pantry (freezer). Do I need any arc fault breakers or gfi outlets?Question 9 - I have 2 outside light switches. 1 for light to the rear yard, and light for a deck area. I'd like to separate these switches into their own light switch box from a light switch box for the kitchen. I have a 6' slider going to the deck. I'd like to put a 3-4 gang box for the interior kitchen lights on one side of a stud by the patio door. On the other side I'd like to put a 2 gang box for the deck / rear yard lights. The reason to put in two boxes is to put the most used switches together. The kitchen switches would be closer to the door, and the others a little farther away. Are there any rules about doing this? Could I put them on the same stud but have the deck light box above the other box? Do these lights need their own breaker, or can they be part of another circuit?Question 10 - I have two exterior outlets. 1 is near the a/c unit, and one by the deck. Both have seals boxes with in use covers. Both will be gfi outlets. Can I make these 15 amp circuits, or do I need 20 amps? Can I put these off an existing circuit, or do they need to be dedicated? One option is to put these on one circuit with the exterior lights.Question 11 - I'm not ready for an inspection yet. I do have several walls that do not have any wiring, switches, or outlets in. It is starting to get cold - can I insulate these cavities now....rather than waiting for the inspection?Thanks for your help and advice....I may have some follow up questions depending on the responses above.

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Kevin

Supervising Electrician

Diploma

4,536 satisfied customers
With power co new drop be 3 or 4 wire for 400amp service.

Hey Kevin , With power co new drop be 3 or 4 wire for 400amp service.And , I believe that you said that the existing wire to house , will not need to be changed . Existing 200amp 3 wire feed to service panel .

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Kevin

Supervising Electrician

Diploma

4,536 satisfied customers
Does NEC approve rewiring a residential property with

Does NEC approve rewiring a residential property with aluminum wire enclosed in aluminum conduit much like a commercial rewire with aluminumJA: I'll do all I can to help. How long have you been dealing with this?Customer: 2 days.JA: Do you plan on doing the work yourself?Customer: No. A profesional inspector will be engaged. Issue came from a House inspector who said house was not properly wired because it was wired with aluminum wire, even though it was enclosed in aluminum conduit.JA: Anything else we should know to help you best?Customer: Also, he stated the electrical service panel is no longer being used as per manufactures design. Manufacture was not identified. However it is a new/newer 100 Amp panel. All junction boxes are metal.JA: How old is the system in question? And have you consulted an electrician yet?Customer: Approx. 10 years old. No, an electrician has not been consulted yet. The seller wishes to know if aluminum enclosed wire in aluminum is acceptable by the NEC.

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machinc

Retired

1,748 satisfied customers
Aluminum wired home. COPALUM connectors installed 4 years

Aluminum wired home. COPALUM connectors installed 4 years ago. Attempting to install new range hood. When we removed the old range hood, there is no j-box, but COPALUM connectors on the black and white coming out of the wall, but none on the aluminum ground - it was screwed direct to the old range hood. New range hood, that aluminum ground is not long enough to reach ground screw on hood. What is safe to do?

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Kevin

Supervising Electrician

Diploma

4,536 satisfied customers
I am installing a ceiling fan/light to the ceiling of a room

Hi! I am installing a ceiling fan/light to the ceiling of a room in an old house. Much of the electrical devices in the house have already been updated by an electrician but the home still has aluminum wiring. My issue is that the electrical box in the ceiling only has a hot and a neutral wire and no ground wire. Would it be safe to wire the ground lead from the fan/light to the mount or do I need to call and electrician to run a ground wire through the walls/ceiling? (Also, I am an electrical engineer so I have circuit knowledge but I am not very knowledgeable about this kind of safety work)Thank you

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Mike G.

Master Electrician

Vocational, Technical or Trade Scho

10,050 satisfied customers
I am working in voltage drop calculations but I want to know

i am working in voltage drop calculations but I want to know if the table for conductors properties works (specially the circular mils are the same for cooper and aluminum? if it work i want to know the gage for 125 amp 420' long and 240 v 1Ph to compare vs my calculations with aluminum wire

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Kevin

Supervising Electrician

Diploma

4,536 satisfied customers
My upstairs and downstairs are acting shorting, Some rooms

My upstairs and downstairs are acting shorting, Some rooms on top, when I connect the circuit breaker, it cuts off right away. I guess there must be some shorting.How do I find out which one is shorting?I did use copper only plugs on aluminum wires. Could it be the reason?

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Kevin

Supervising Electrician

Diploma

4,536 satisfied customers
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