Search: Posts Made By: pattenp
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01-17-21, 03:38 PM
Replies: 14
Views: 442
Posted By pattenp

Look at sticky "Sub Panel Diagrams" see picture...

Look at sticky "Sub Panel Diagrams" see picture #5 in first post.
01-17-21, 01:47 PM
Replies: 14
Views: 442
Posted By pattenp

No it's not correct. Feed between panels needs to...

No it's not correct. Feed between panels needs to be four wires, 2 hots, 1 neutral, 1 equipment ground. Neutral is bonded at first disconnect panel and is isolated in subpanels. Second ground to pipe...
01-16-21, 06:18 PM
Replies: 32
Views: 500
Posted By pattenp

The installation of SER is the same as NM-b. It...

The installation of SER is the same as NM-b. It only needs to be sleeved where it is subject to physical damage. PVC conduit straps can be use and clamping at panel entry is done by large NM clamps.
01-16-21, 05:16 PM
Replies: 32
Views: 500
Posted By pattenp

The 1-1-1-3 Cu SER is what you need to use. As...

The 1-1-1-3 Cu SER is what you need to use. As long as it's not installed within insulation it can be sized based on the 75 deg C column which is 130A. The #3 ground is what comes in the #1 Cu SER....
01-15-21, 05:46 PM
Replies: 5
Views: 193
Posted By pattenp

A box with cover is okay. Access to the box must...

A box with cover is okay. Access to the box must be maintained, can't cover with drywall or other type of wall finishes.
01-03-21, 09:36 PM
Replies: 5
Views: 231
Posted By pattenp

NEC states that wire only rated as USE is to be...

NEC states that wire only rated as USE is to be terminated outside of the structure. USE and USE-2 are not fire rated insulation types for interior installation. The wire must also carry the...
12-10-20, 03:12 PM
Replies: 12
Views: 267
Posted By pattenp

There is no NEC restriction that says a...

There is no NEC restriction that says a receptacle outlet is not to be on the same circuit as lights. Obviously if the lighting circuit is 15A then any receptacles added on to that circuit will be...
12-05-20, 02:37 PM
Replies: 10
Views: 293
Posted By pattenp

Follow NEC rules for motor circuit wiring. See...

Follow NEC rules for motor circuit wiring. See NEC section 430. Wire size is based on motor HP from table 430.248. Provided motor has its own overload protection use table 430.52 to size the breaker....
12-02-20, 02:12 PM
Replies: 1
Views: 203
Posted By pattenp

Upper left spaces are fine. Your problem is #2 Al...

Upper left spaces are fine. Your problem is #2 Al is only to be used for up to 90A per the NEC. To compound the problem is 200ft is going to cause voltage drop.
For 100A at 200ft I'd use...
12-01-20, 07:45 AM
Replies: 10
Views: 258
Posted By pattenp

A 20/40 breaker powers two separate circuits, one...

A 20/40 breaker powers two separate circuits, one at 20 amps the other at 40 amps. The sum of the two do not equat to a 60 amp breaker. As said you are putting the wiring at risk.
12-01-20, 07:37 AM
Replies: 13
Views: 396
Posted By pattenp

You need to trace the wiring from the load side...

You need to trace the wiring from the load side of the gfci outlet checking for a shared neutral, not between the panel and line side of the gfci outlet.
11-26-20, 08:12 PM
Replies: 4
Views: 138
Posted By pattenp

You could use an illuminated light switch if you...

You could use an illuminated light switch if you don't have a neutrat but you have to think in reverse because the switch is illuminated when off and not illuminated when on. Plus the illumination is...
11-22-20, 02:51 PM
Replies: 6
Views: 214
Posted By pattenp

Not unless the panel has feed through lugs.

Not unless the panel has feed through lugs.
11-11-20, 02:24 PM
Replies: 17
Views: 362
Posted By pattenp

Using the 70A breaker in the main panel to feed...

Using the 70A breaker in the main panel to feed the 100A main breaker subpanel is okay.
11-11-20, 01:08 PM
Replies: 17
Views: 362
Posted By pattenp

The 70A breaker protects the feeder and the 100A...

The 70A breaker protects the feeder and the 100A breaker becomes a disconnect. In the picture if the main panel has the first disconnect then the neutral is to be bonded.
11-10-20, 07:45 PM
Replies: 17
Views: 362
Posted By pattenp

Color is not marked. The conductors must have the...

Color is not marked. The conductors must have the type and size printed on it.
11-09-20, 06:12 PM
Replies: 1
Views: 148
Posted By pattenp

Nope. Low voltage conductors are not to be in the...

Nope. Low voltage conductors are not to be in the same raceway as line voltage conductors.
I need to add, unless the conductors have the same voltage rating.
10-30-20, 08:34 AM
Replies: 8
Views: 224
Posted By pattenp

The CC2200 is the main 200A breaker and is for...

The CC2200 is the main 200A breaker and is for Eaton Cutler Hammer type ECC panel, so your panel should be Cutler Hammer. As for the surge protector, just use the breaker size specified by the...
10-24-20, 09:33 AM
Replies: 10
Views: 509
Posted By pattenp

Your generator connection is not legal and...

Your generator connection is not legal and dangerous and puts you in a position to be liable for injury to power workers servicing power outages if you forget to disconnect the service.
10-15-20, 05:27 PM
Replies: 6
Views: 264
Posted By pattenp

You can change the 20A circuit to 15A by using a...

You can change the 20A circuit to 15A by using a 15A breaker as long as that circuit is not supplying outlets in a bathroom/laundry. Bathroom/laundry is to have 20A outlet circuit. If changing...
10-15-20, 03:26 PM
Replies: 6
Views: 264
Posted By pattenp

Just leave the circuit as 20A and run 12/2 to the...

Just leave the circuit as 20A and run 12/2 to the gfci outlet and to the switch and light.
10-11-20, 02:36 PM
Replies: 5
Views: 202
Posted By pattenp

6/3 UF-b is not going to fit in 1" conduit. I...

6/3 UF-b is not going to fit in 1" conduit. I believe 6/3 UF is about 1.2" wide and is going to be a royal pain to pull through conduit.
Edit: Crunching the numbers by the NEC you need 2" conduit to...
10-09-20, 05:49 PM
Replies: 2
Views: 134
Posted By pattenp

The ground only needs to be #10 Cu.

The ground only needs to be #10 Cu.
09-30-20, 05:09 PM
Replies: 1
Views: 133
Posted By pattenp

You do not need to ground the frame of the...

You do not need to ground the frame of the generator to a ground rod. The generator is grounded via the equipment grounding conductor connected to the house electrical system. The generator should...
09-29-20, 07:31 AM
Replies: 9
Views: 309
Posted By pattenp

My power company (Dominion Energy) doesn't allow...

My power company (Dominion Energy) doesn't allow any other wiring to run through the meter enclosur. It isn't a local inspector's call.
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