What I have posted previously
Type: Posts; User: brian john
What I have posted previously
If any members have a circuit breaker that they are questioning I'd gladly test it.
1. IMO for residential no one manufacture is that much worse than the other, though I do prefer Square D.
2. If you want the breaker properly tested send it to me, I'll test it on a calibrated test...
Which really does not mean anything, because there is no real average day, the ground is either wet, or in some phase of drying then there is a drought, followed by freezing of the soil. plus the...
A conductor with damage insulation in PVC can be the one tough item to catch with a megger. I would shoot for when it trips and in your case that is when it rains.
Though unless the conduit is...
First I would install a line disturbance recorder and do a complete site survey to ascertain the problem. From what I read it is tough to know what may or may not be your problem.
Then I would...
Dealing with the government we went from 60-120 days from date of invoice to being paid to 2-3 days. We left everything as it is and are happy we get paid in a timely manner. Most of our commercial...
First your primary will be 240
Second your secondary will be 460.
Third DIRTY POWER? Or you just had the connections wrong.
Call your supply house and order the transformer you need. Order a...
There is always a way, it just depends on how much money you have. Utilizing the 3 Pole ATS setting a transformer on the load of the ATS would resolve the issue. Not practical and expensive but...
Up, down, plastic, metal (residential), EGC in conduit, conduit as the sole EGC, tape devices, don't tape devices, twist, don't twist. Unless specified these are personal preferences, much like bare...
Where did you come up with 150' being outside the sphere of influence?
Typically we go 10 times the diagonal
And they offer training. Boy I'd love to take that class.:happysad::happysad:
A few % of a 400 amp service would be .02x400=8 amps pretty high in my opinion
A few % of a 4000 amp service would be .02x4000=80 amps pretty durn high.
There are many factory that would affect...
That is what we do, we have trained electricians (in testing and maintenance) and calibrated test equipment.
What I would do.
Measure AC and DC current at each location
Main service neutral to ground bond
All transformers neutral to ground bond
All DC systems ground bond
Generator (check for 4 pole...
You want field test equipment not lab grade, (I WOULD THINK)
A Ductor/DLRO (digital low resistance meter)/micro-ohm meter, Electrorents.
Then come in 10 amp, 100 amp, 200 and up to 600 amps.
Circuit breakers are tested per NEMA, ANSI, NETA and the particular manufactures specifications
Breakers are high current tested for long time and instantaneous pick up
Actually I'd take the CB and test it. But few electricians have that option.
In a case like this, for the cost of the CB I'd err on replacing. But I would look into all aspects of the wiring...
10' and 25' tap rule one of the most violated NEC rules I see. Had a job with a 100' tap :sick:
And lastly the circuit breaker could be defective.
On the low end $880.00, in our area. Assuming a proper 3-point test.
In Washington DC all older motors were DC, even with some retrofits only the generators are replaced (in some cases), in quite a few of the total redos they are going AC..
Treading lightly here, but I think that would be a nice mark to shoot for but I doubt it is a realistic wage paid across the country.
Depends on what the employee is going to do, slinging MC and installing 2x4's
Can you wire a 3-way?
Have seen it many times and to my knowledge no. At a jail in Annapolis MD. I sat on a 750KW servicing a bolted pressure switch after 4 hours my whole body hurt, my had was throbing, my ears were...