Search: Posts Made By: ibpooks
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09-03-19, 05:38 AM
Replies: 6
Views: 381
Posted By ibpooks

I see no problem with it. I mostly install...

I see no problem with it. I mostly install Siemens equipment.
09-03-19, 05:15 AM
Replies: 11
Views: 533
Posted By ibpooks

Is the GDO the only outlet on this breaker? If...

Is the GDO the only outlet on this breaker? If there are others, do they work? If this is the only outlet on the circuit, then the breaker has probably gone bad. They are mechanical devices and...
08-29-19, 05:20 AM
Replies: 12
Views: 479
Posted By ibpooks

The two most common candidates would be a bad...

The two most common candidates would be a bad feeder breaker in the main panel or a break in the underground cable.
08-29-19, 05:18 AM
Replies: 14
Views: 773
Posted By ibpooks

You could try, but don't get your hopes up. Any...

You could try, but don't get your hopes up. Any flex and disturbance will probably crumble the insulation. Wire of that age used natural rubber and an organic fibers like cotton or flax in the...
08-29-19, 05:12 AM
Replies: 6
Views: 443
Posted By ibpooks

Our advice is based on national code, but bonding...

Our advice is based on national code, but bonding the service entrance is one spot where local codes or power company policies often overrule NEC. I agree with the other posters in that this service...
08-28-19, 10:46 AM
Replies: 16
Views: 643
Posted By ibpooks

Yes it's very common for breakers to be poorly...

Yes it's very common for breakers to be poorly labeled or mislabeled. "Iron" is probably in the laundry area. I have had customers request a specific outlet for ironing, so I wouldn't dismiss that...
08-28-19, 05:16 AM
Replies: 3
Views: 365
Posted By ibpooks

0. A sump pump often requires a dedicated...

0. A sump pump often requires a dedicated circuit, so extending an existing circuit may not be a good plan. Further, many 20A circuits like those feeding kitchens, baths or laundry cannot be used...
08-28-19, 05:09 AM
Replies: 6
Views: 919
Posted By ibpooks

A. correct. Also move any existing ground wires...

A. correct. Also move any existing ground wires that are currently connected to the shared ground/neutral bar to the new ground bar.

B. I prefer to run a ground wire through flex conduit. #10...
08-27-19, 01:56 PM
Replies: 6
Views: 919
Posted By ibpooks

1. correct, although depending on the age of the...

1. correct, although depending on the age of the subpanel it may not necessarily have separate ground and neutral bars. There could be one shared bar or there could only be a neutral bar if the...
08-27-19, 12:35 PM
Replies: 6
Views: 919
Posted By ibpooks

The way to fix this without replacing the...

The way to fix this without replacing the underground feeder:

1) buy an add-on ground bar kit for the garage panel, and removing the bonding screw from the existing bar. The ground bar should...
08-27-19, 11:49 AM
Replies: 7
Views: 525
Posted By ibpooks

It is entirely up to your local government if...

It is entirely up to your local government if homeowners are allowed to do service entrance work. Some places it's allowed, some require a licensed contractor.

The solar shouldn't make too much...
08-27-19, 10:53 AM
Replies: 20
Views: 574
Posted By ibpooks

When the hots are on different phases, they can...

When the hots are on different phases, they can share a neutral because the neutral current cancels. The current on the neutral is equal to the absolute value of the difference of current in the...
08-27-19, 10:46 AM
Replies: 6
Views: 403
Posted By ibpooks

You need to pull 14-2/g cable from the existing...

You need to pull 14-2/g cable from the existing light to light 2, then 14-3/g cable from light 2 to light 1 and from light 1 to switch.

At the existing light match all the colors to each other.
...
08-27-19, 08:39 AM
Replies: 1
Views: 228
Posted By ibpooks

The LV cables can go through holes in the...

The LV cables can go through holes in the top/bottom plates or studs. They cannot go in the same boxes as line voltage. The cable must be a type rated for in-wall use (much LV cable is not). ...
08-27-19, 05:37 AM
Replies: 20
Views: 574
Posted By ibpooks

Yes, it's called a multiwire branch circuit...

Yes, it's called a multiwire branch circuit (MWBC). In fact the two hot legs must be on different phases. Today's code requires a handle tie between the two breakers of the MWBC, but it was legal...
08-27-19, 05:15 AM
Replies: 20
Views: 574
Posted By ibpooks

What you're seeing is the difference between...

What you're seeing is the difference between textbook and reality. Every connection has a little resistance, wire isn't made 100% consistent, the grid fluctuates, meters have different calibration,...
08-26-19, 01:39 PM
Replies: 3
Views: 322
Posted By ibpooks

I would run a new separate circuit for the table...

I would run a new separate circuit for the table saw. Assuming a shopvac type vacuum that can run on the existing circuit with no problem. All receptacles in the barn should have GFCI protection.
08-26-19, 10:26 AM
Replies: 8
Views: 1,030
Posted By ibpooks

Code says #6 can be stapled without additional...

Code says #6 can be stapled without additional support or protection. The GEC (bare copper ground wire) should be run as straight and directly as possible from the panel to the ground rod(s). It...
08-26-19, 10:21 AM
Replies: 20
Views: 574
Posted By ibpooks

That's all within normal limits. See if your UPS...

That's all within normal limits. See if your UPS has a sensitivity setting. They sometimes ship with it set to high which causes lots of unnecessary transfers to battery. Medium or low should be...
08-26-19, 05:31 AM
Replies: 10
Views: 520
Posted By ibpooks

Usually where we don't know the final position of...

Usually where we don't know the final position of a fixture, we leave a generous loop of romex in the stud bay that can be pulled through the drywall later. I also make a mark on the subfloor and...
08-26-19, 05:15 AM
Replies: 2
Views: 316
Posted By ibpooks

From the generator to the ATS use #4 copper, for...

From the generator to the ATS use #4 copper, for the rest of the service components which carry 200A use #2/0 copper.
08-26-19, 05:11 AM
Replies: 20
Views: 574
Posted By ibpooks

In a residential split-phase service, you have...

In a residential split-phase service, you have incoming 240V that is split into two 120V halves by the neutral wire. The sum of the voltages on either side of the neutral remains constant. What is...
08-22-19, 07:03 AM
Replies: 6
Views: 394
Posted By ibpooks

Individual conductors will be better on such a...

Individual conductors will be better on such a long pull. Also most triplex does not carry an indoor fire rating, whereas xhhw does so that's one less thing to upset the inspector.
08-22-19, 06:03 AM
Replies: 6
Views: 394
Posted By ibpooks

The distance will require upsizing the wire to...

The distance will require upsizing the wire to compensate for voltage drop. I'd probably target 60A -- you can still use a 100A panel in the barn, but feed from a 60A breaker in the main. At that...
08-21-19, 08:58 AM
Replies: 3
Views: 361
Posted By ibpooks

2200 watts / 10 panels = 220 watts per panel is...

2200 watts / 10 panels = 220 watts per panel is within the normal range for most solar systems. If it is degraded it isn't too bad.

Some kinds of panels can survive a single cell failure and some...
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