Howdy, y'all, new member here. I'm making a new engine harness from scratch and I'm a bit confused by how much current capacity I need my truck's wiring harness to have. Based on the fuse ratings, it needs to be able to handle 210A but that doesn't make sense to me because that would be about 7...
Hello,
In my kitchen, I make multiple sockets that are controlled by one MCB. For some weeks, I don't know why the MCB used to trip and I used to turn it back ON. One day the MCB didn't go to the off position but all those sockets stopped working.
I pressed the test button on the particular MCB...
Hello ?,
is there any regulation of wire cross section for current transformers? Somewhere I read that wires from transformer to Amp meter (for example) should be minimum 2.5mm2, but on some other site I read that it must be minimum 4mm2 ?. I don't know where I read it, but I read it.
What is...
Went to a house this morning to locate a fault causing the RCD in a split load board to trip.
Going through the usual tests, I decided to put my earth leakage clamp meter on the earthing conductor.
Here is where it gets weird: with the main switch in the off position, the meter was reading...
Hi !
Much talk of the use of type A, type B and Type F RCDs recently.
As we know all are specified at varying levels to ignore the blinding effects of transient DC currents, that are being superimposed on our AC circuits by modern technology.
But is there a means to measure the level of this...
I am a very knowledgeable DIYer with no issues on any beginner to intermediate wiring because my father is a retired electrician.
The issue:
I have a safety issue I am concerned it might be an expensive discovery mission if I hire an electrician early on so trying to narrow down to am easy fix...
Good evening all!
I was on site today relocating a consumer unit in a domestic property and got a hefty whack of a CPC...
I have never seen this much leakage in 20 years of work. It is a TNS system, the main switch was off (I got a whack of a gas bond). I am unsure what to do with the...
Hi, I'm new here and this is my first post, so excuse any forthcoming rookie errors.
I am from the UK with an electrical engineering background, coming from the heavy industry sector (mainly power stations). I recently took on the role of estimator/operations manager for a small electrical...
I have two 1200w Mini Cookers which trips the current. If I use a 2500w kettle, it is OK. If I use a 2000w fan heater it is OK. I cannot see any faults with the cookers and cannot get my head round what is happening. Any help appreciated?
Hi all,
Just wondered if there was any devices that plugged in line with the plug socket and plug which you can use to measure current being drawn on different devices being connected to a power supply? Just wondered if there was a better way then just using a multimeter.
Cheers,
Connor
I have a 1kw peak output generator.
900w continuous.
My boat has an immersion heating element that draws 1kw. This will make my generator cut out. I know that if the heating element could only be fed 900w it would still work but just take that little longer to heat the water. So my question is...
can some one help me with this problem?
I have one spike guard which has only neutral and line wires. but the sockets on the spike guard are 3 pin, the problem I am facing is that : I am getting current into my earthing line, I have got shocked many times from chargers, fridge surfaces, etc.
I...
Looking for advice.
Can you advise the current situation with having minor work carried out., as to regard of certification.,
1. Installation of new shaver point in bathroom. no previous point in bathroom.
2. installation of spot lights in bathroom ceiling to replace pull cord. ( switch...
During a recent inspection on a 3 phase board I have some MCBs rated at 6KA
And some rated at 10 KA .
The ZE is about 0.04 to 0.05 depending on phase , form my calculations this works out to 9.95 KA ( I can only measure single phase pfc)
On a consumer unit we allow 16KA if its backed up by a...
Hi. Silly Question, as a tester / inspector of an installation. How do i confirm that overload protection is satisfied for an existing circuit, or is it just assumed as long as Coordination (p89 18th Regs) is satisfied and the protective devices is of a EN BS device? Practically, how do i...
I live in the Philippines but I have the same US electrical system (2 x 110V hot + 1 x neutral). I have two ground rods buried 8 ft. deep and connected to the main panel. Netural and ground are bonded in the main panel. And from the main panel, all 4 wires (2L + 1N + 1G) go to sub panels. Ground...
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