Search: Posts Made By: telecom guy
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12-31-20, 04:17 PM
Replies: 17
Views: 307
Posted By telecom guy

How does one replace the pan contacts without a...

How does one replace the pan contacts without a utility service disconnect? In my area, the POCO wants a permit pulled.
12-10-20, 09:17 AM
Replies: 17
Views: 517
Posted By telecom guy

It's possible. So, in tek speak, the GFCI is...

It's possible. So, in tek speak, the GFCI is sensitive to "common mode" currents, but not "normal mode" or "differential mode" currents. When you have a length of L, N, and G conductors in...
11-26-20, 06:56 AM
Replies: 10
Views: 442
Posted By telecom guy

A 15 or 20 Watt incandescent test lamp, in the...

A 15 or 20 Watt incandescent test lamp, in the right hands, is far more instructive than the neon or led based plug ins.
wire one side to a firm 120v source, the other end is probed to ground points...
11-03-20, 01:00 PM
Replies: 9
Views: 356
Posted By telecom guy

"simply" pull out every conductor, and pull in...

"simply" pull out every conductor, and pull in new conductors. Arcing enough to trip out a 200A breaker is a serious, damaging fault to the insulation. And, it very likely has affected at least 2...
10-22-20, 07:37 AM
Replies: 14
Views: 616
Posted By telecom guy

If a 20A HACR breaker is slow enough, that...

If a 20A HACR breaker is slow enough, that becomes the best solution.
09-22-20, 09:01 AM
Replies: 21
Views: 616
Posted By telecom guy

We luv to give feedback. However, lots of facts...

We luv to give feedback. However, lots of facts not yet known to us.

Is the compressor in good shape? Pistons move, not rusted solid, oil looks good, etc etc.
Before I would rebuilt or...
08-31-20, 12:06 PM
Replies: 36
Views: 1,074
Posted By telecom guy

Pretty much true. On the corrosion issue;...

Pretty much true.

On the corrosion issue; I would not expect current THRU the tube to corrode it, just like wire. However, if there is a voltage delta from tube to ground/dirt, there could be...
08-31-20, 06:44 AM
Replies: 36
Views: 1,074
Posted By telecom guy

<img...

<img src="https://www.mikeholt.com/htmlnews/grounding/un250-64.jpg" width="498" height="574"/>

Pretty clearly, the earth/dirt grounding arrangement and the wired/overhead neutral conductors are...
08-30-20, 06:32 AM
Replies: 36
Views: 1,074
Posted By telecom guy

I have seen an el water Heater defect cause...

I have seen an el water Heater defect cause ground current issues across the street. U could start with all power off at your home and insure ground current is zero. How many homes on your pole...
08-29-20, 06:06 PM
Replies: 36
Views: 1,074
Posted By telecom guy

What is ground current? Rod plus water pipe

What is ground current? Rod plus water pipe
08-28-20, 03:20 PM
Replies: 5
Views: 381
Posted By telecom guy

I donít know why either, but. There is an...

I donít know why either, but.
There is an argument that a non-bonded system has better shock protection than one that is ground/earth referenced. If you come in contact with a hot connector and you...
08-18-20, 02:42 PM
Replies: 33
Views: 787
Posted By telecom guy

2014 Code Language: 250.64(B) A 6 AWG...

2014 Code Language:

250.64(B)

A 6 AWG grounding electrode conductor that is free from exposure to physical damage shall be permitted to be run along the surface of the building construction...
08-17-20, 12:38 PM
Replies: 7
Views: 175
Posted By telecom guy

Looks like heat shrink tubing. try a razor...

Looks like heat shrink tubing. try a razor knife to slit and remove. Note that these tabs tend to be made of stainless steel; takes a special flux to get solder to flow and stick.
08-17-20, 12:01 PM
Replies: 33
Views: 787
Posted By telecom guy

Your link shows an acorn for 1/2" rod, but they...

Your link shows an acorn for 1/2" rod, but they have these for 5/8" as well.
Insulated wire will be harder to deal with, and typically not used for this job.
08-07-20, 12:16 PM
Replies: 11
Views: 424
Posted By telecom guy

At the levels of a couple thousand amps, these...

At the levels of a couple thousand amps, these surge protectors are clamping at around 500 Volts +/-. And, they might survive if the event lasts not much more than a tenth of one millisecond....
08-06-20, 03:22 PM
Replies: 6
Views: 231
Posted By telecom guy

I went with a awg 12 for this very purpose. But...

I went with a awg 12 for this very purpose. But that melted plug was caused by a worn, loose fitting female end.
08-06-20, 02:34 PM
Replies: 21
Views: 478
Posted By telecom guy

Some panels are rated flippable, top to bottom....

Some panels are rated flippable, top to bottom. Some folks prefer to minimize the unfused service wire inside the box. If your new panel is reversible, and the service is coming in low, and most...
07-31-20, 08:50 AM
Replies: 17
Views: 504
Posted By telecom guy

Its a race to the bottom; GE and SqD leading the...

Its a race to the bottom; GE and SqD leading the way.
Leviton is on probation. I just had a AFCI smart breaker actually fail in service. On a circuit with just a refrigerator. It didnt' trip,...
07-30-20, 06:48 PM
Replies: 12
Views: 331
Posted By telecom guy

UL has a similar issue with soldered ground...

UL has a similar issue with soldered ground wires. If a device catches fire, they want the ground connection to stay intact. Thus, no soldered ground wires even inside Class 1 devices.
06-24-20, 07:55 PM
Replies: 16
Views: 572
Posted By telecom guy

@2john... these transformers I referenced take...

@2john... these transformers I referenced take primary voltages of 13kV. These so-called networked systems have a number of these transformers, with their secondaries tied together to offer...
05-29-20, 09:39 AM
Replies: 16
Views: 407
Posted By telecom guy

Definitely not. You must at least mark the ends...

Definitely not. You must at least mark the ends black or red, or a few other, NON-WHITE, color.

And, please use green or yellow/green bonding wires inside that box; to the DIN or the metal...
05-10-20, 06:12 AM
Replies: 25
Views: 549
Posted By telecom guy

D cells will work. How many will depend on what...

D cells will work. How many will depend on what length of time is involved. Plan on 5 to 10 amp hours per cell, depending on load.
05-09-20, 08:00 PM
Replies: 25
Views: 549
Posted By telecom guy

333594095166. Is the item number. It would have...

333594095166. Is the item number. It would have to be a pickup. If you do a lot of this stuff, it could power 1v, 5v or 6.3v tubes.
05-09-20, 11:48 AM
Replies: 25
Views: 549
Posted By telecom guy

There is a cheap lambda 0 to 10v supply on the...

There is a cheap lambda 0 to 10v supply on the bay. 14a. But shipping is a killer. I have a couple lambdas. Diff outputs though. I really like the classic , made in NY brand.
05-09-20, 05:46 AM
Replies: 25
Views: 549
Posted By telecom guy

For just dc, consider a simple adjustable linear...

For just dc, consider a simple adjustable linear voltage regulator. A LM317 or the like. For your current of 6 amps, you will need a high current rated transistor, perhaps a darlington. Iím sure the...
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