Doing new supplies for a school new Shneider 3 phase & N MCCB panel board. 50mm 4 core SWA one end made off in the board earth fly lead from banjo to earth terminal. The other end gland made off in gland (fly lead not made off yet) 3 phases and neutral just hanging there. Done installation...
Toneyz
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insulationinsulation resistance
insulation resistance test
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Hello,
has anyone noticed in the new GN3 that any reading below 20 Mohms now has to be investigated or is this a printing mistake as it used to be 2Mohms?
Thank you
Tom
Good afternoon, apologies if this has been covered before i've not long joined so gradually finding my way around.
I have my Part P assessment coming up on a new installation and would like to hear some opinions on how people carry out their IR tests.
In guidance note 3 it gives an example of...
Is twin and earth classed as double insulated? If it is, is it necessary to use when you using ADOS when the regs say basic protection can be provided by basic insulation.
Is double insulation cable necessary such as twin and earth if under automatic disconnection of supply it states that basic protection can be achieved by basic insulation only.
Thanks
I am just working through my understanding of the insulation resistance test, and I want to find out the best way to do the combined Live-Earth test where the Line and Neutral conductors are connected (joined, or however it is best described) through one probe of the tester, and the other probe...
Pleased to find this forum, my 1st post! I will get an electrician in for this to make sure it's safe and tested but I want to understand what's right before getting a quote/posting a job.
Previous owners had downlights installed in the bathroom but a later test certificate identified the CPCs...
Hi, I do not work on a lot of heating systems but when doing an insulation restistance test on a S plan heating system do you only remove the digital programmer?
On a new install of a shower circuit, with a neon isolater, is it better to use choc blocks to bypass neon isolater or would it be ok to just test live-earth (live being neutral and live combined) and miss the live-live test?
If testing just live-earth, would you write it down in details of...
Hi All,
I'm kind of hoping to get confidence in my decision to have spots fitted into the ceiling of our new extension, but keep coming across different advice...help would be welcome!
We're looking to fit 12 LED spots (Aurora Pro 6w) into a lean-to pitched roof, split into two circuits on...
Hi,
Wish to increase loft insulation from 100 to 300mm.
At present lighting and power cables are clipped direct to ceiling joists barely covered by insulation. The depth of insulation planned will cover these cables and I seek a solution. Thanks.
Back in 2013 I had a Domestic Electrical Installation Condition Report done on my rented property - nothing horribly major but one thing I didn't understand...
I had a C3 code for "0 ohms readings for I.R test for sockets & lighting (unable to remove all loads sockets, lighting had electronic...
Testing a ring earlier and found 0.8M ohm at 250v between (L&N) - E.
This wouldnt be a neon causing this would it as im testing between L N (joined) to E ? I have not yet tested between the three individually.
This low reading is making me hope somethings still connected, there is a digital...
Advice or quicker ways for doing i r tests on an eicr generally what I have been doing over the years is live to earth neutral to earth and joining live and neutral together then testing to earth job done but my pal who has recently had his annual nice i c visit said he's been shown a new...
Hi everyone
I have a customer who has a RCD that trips during the night and it resets ok the following day it is ok for a week or so then it tips again during the night.
has any one any ideas and what is the quickest way of finding out what the cause is.
also
I need to do an insulation...
Hi all.
I'm a 4th year electrician currently awaiting to finish my trade test. (FICA in Scotland) the only parts I have to pass is the testing part and fault finding.
I'm currently studying testing as this is something I have done the minimum of onsite.
Could someone tell me how I would...
Have question thats been on my mind for a while. Does anyone know if; at 250 -500 v, a single layer of heat shrink, or a single layer of insulation tape for that matter, covering a bare conductor, sufficient insulation against ?? direct contact/a shock ?
It seems a bit thin in comparison to to...
in a used condition, used about 5 times in total no longer needed as I have an MFT.
Paid £450 about 2 years ago!
Comes with carry case, croc clips, leads, user manual. I will post via tracked courier I think its around £9 tracked.
Offers please
The regs state 717.413 a Isolation transformer and insulation monitoring device should be used.
Are there any guidance notes on type or makes i should be looking for.
I see you can get 230V primary 230V secondary boxes but i'm also not sure on which to get in terms of load..
I'm inspecting this...
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