Search: Posts Made By: ibpooks
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09-03-19, 05:38 AM
Replies: 6
Views: 757
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: 1,151
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: 1,007
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, 05:12 AM
Replies: 6
Views: 1,480
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: 1,163
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: 609
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...
08-27-19, 11:49 AM
Replies: 7
Views: 1,908
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: 1,406
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: 939
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: 612
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: 1,406
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: 1,406
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: 563
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, 10:21 AM
Replies: 20
Views: 1,406
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, 05:15 AM
Replies: 2
Views: 564
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: 1,406
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: 866
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: 866
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: 762
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...
08-20-19, 05:12 AM
Replies: 4
Views: 1,686
Posted By ibpooks

(3) Yes, the ground wire connects to the box. ...

(3) Yes, the ground wire connects to the box. The length of conduit that goes from the box into the ground down to the bottom of the trench has to be PVC. EMT can't be used in the ground.

I...
08-19-19, 10:21 AM
Replies: 4
Views: 1,005
Posted By ibpooks

I don't know, but it sounds like a weird problem....

I don't know, but it sounds like a weird problem. Lightning can do some pretty crazy stuff, so it's hard to speculate without seeing it in person. Are there other receptacles on this circuit and do...
08-19-19, 07:28 AM
Replies: 6
Views: 1,028
Posted By ibpooks

You're not combining ground & neutral. You...

You're not combining ground & neutral. You connect the ground (green) to the motor frame and you cap off the neutral (white) leaving it unused. The hots (black & red) connect to the high speed and...
08-19-19, 05:57 AM
Replies: 4
Views: 1,177
Posted By ibpooks

No, a transformer produces alternating current. ...

No, a transformer produces alternating current. You need direct current at the proper voltage to charge a battery. A battery charger is the best/cheapest way to get that, but it can be built using...
08-16-19, 05:17 AM
Replies: 55
Views: 4,192
Posted By ibpooks

I'd use a standard steel box screwed to the stud....

I'd use a standard steel box screwed to the stud. You can drill additional mounting holes if you need to be able to hit the stud. The old work box is OK, but they never will hold as well as one...
08-15-19, 06:50 AM
Replies: 8
Views: 1,659
Posted By ibpooks

No. The code language for unfused service...

No. The code language for unfused service conductors that a run through a building must be "as short as practical". Usually I've seen this to mean a few feet at most. The overall length is not...
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