Search results

Knowing the wire sizes, cir mil sizes,loads involved Length of wire, temp considerations 200'should not be a problem I suppose the reason for checking vd would be if you suspected a problem based on the operating conditions We call our hot wires live and our neutral Wire the grounded...

I remember when they came out with ELCB's back when I was an apprentice years and years ago in Ireland Do they still use them in the UK ? I know RCD's replaced them

P There is a fair amount of FPE but now the home owner insurance companies make us take it out of doing an up grade Not sure about zinsco around here I have'nt seen it

I agree with the wire nut situation If you install them correctly they make a good connection with coil spring inside. Most of the problems with lose connections are associated with those stab in connectors at the back of the outlets and a real problem with heating up and causing fire. I've been...

Will the loop impedance tester trip on test a combination arc fault breaker? Like it will an RCD? Will the tester produce a series arc or parallel arc to test the breaker is function I have heard arc fault have some limits?

Ok with this but I'm sure there's soft ware to plug in to determine the Ed I have use this formula forhouse hold circuits to get an idea when my run get over 200' depending on the load and wire size If I wanted find my voltage drop before I run the circuit I would use Ed=kIL/CSA Or maybe there's...

I'm saying we should test. I'm all for safety in the industry. Perhaps there is a more efficient way to deal with paper work and a more secure way to keep track of records? I think the ideas of testing was presented here many years ago but was met with fierce objection for many of these reasons...

I know in Ireland there are electricians who spend a great deal of time doing cert for customers for sign offs on new projects , re wiring , remodeling and so on. Landlords and builders don't alway like the hassle and cost associated with testing. Electricians may find ways around keeping...

So the real big question is why don't we loop test here in the USA. Some have said ,it's because it not in the NEC and the instrument manufactures are reluctant to launch the units here for that reason.There is no code that says we have use a multi meters , clamp meters to test voltage or...

I was thinking it was that,out and back ,makes perfect sense So adding the Ze which is out and back using line and neutral at the line side of the meter socket for example to the xtrm to the internal line and neutral at the load side of the meter to the furthest point will give will give me Zs...

Next question Method for determining ZS can be done either by tester or Adding the the results ofZe to R1+R2 at the end of the circuit Where is the location of R1,R2 One of them is the most distance point Is this R1 ? Where's is the R2? Location?

Would use non trip low current setting?

Correction, for the record all of this should of been quoted "The real problem that I see is when qualified/professional people don't ask questions, this applies to trades as much as to engineers. Many of them pretend to know what they are doing. The longer that this goes on for the harder it...

So my next question is can loop impedance test be done if there are other loads on the xtrm

The real problem that I see is when qualified/professional people don't ask questions, this applies to trades as much as to engineers. Many of them pretend to know what they are doing. The longer that this goes on for the harder it is to admit that they don't know something and as a consequence...

On the single phase supply xtrm In this case has the one HV Wire feeding the top then looking at the LV side there are three flags posts two outer L1& L2 , middle flag has the neutral and wire comes off hits the can and all of these Wires are connected to feed the LV side triplex which feed the...

Thanks for all of this information. I'm good with the bare neutral wire. Nowadays theyare usingore insulated You might find an article called single - earth retune on Wikipedia it almost like what the utility around here provides us.Except they tie the other side of the HV coil to the secondary...