Would like your opinions on the following setup. 300A 3 phase TT incoming supply feeding 15 units with 50A TNS obviously some link somewhere between Neutral and earth but haven't found it yet. I would think that each unit should be TT not TNS thoughts please
Hello,
I need some help with this:
I have a Xbox one S where I connected 2 Fans (there is usually just 1 ) parallel to the 12v sourve from the motherboard. Fan 1 has 22mA and Fan 2 has 29mA.
My Question now is, if there is any risk to burn something. I dont know how much amp is delivered by...
Was called to a commercial lighting issue on Friday where the circuit had tripped, RCBO protected.
On arrival reset the RCBO and all held, three lights weren't working, two were lamps and one had a black scorched ballast, replaced this and all works.
The circuit has eight lights, two PIRs a...
So after what I thought was a productive day yesterday replacing old lights with LED panels, 3 of them weren't working. Turns out the voltage between line and neutral was about 210 at each of the 3 points, 245 between line and cpc. Voltage was 245 between line and neutral at all other points on...
Could I use a DOL Starter circuit to create an automatic extraction system? I was thinking that I could replace the start button and simply wire in a socket instead. So hypothetically if I plugged in and switched on an electric palm sander, it would start up my dust extraction systems (via the...
Hi all,
Apologies it's been a while since I was last here, hope you are all well.
One of my summer jobs is to move a computer room, and it's going to require an additional 3 circuits to power the computers. The board nearest this room has an old 3-phase memshield 1 board that is at capacity...
This might be daft but i am currently doing remedial work on a commercial site and there are lights being served from a EXOR lighting box. Undertaking a continuity R1 and R2 at the incoming on the box i have continuity but at the light fittings nothing, i have changed the plug and the flex still...
Anyone else have to hold one of these cards in order to purchase fluorinated gases?
It would be nice if the ECS/JIB card could incorporate the F-gas qualification so I dont have to renew and pay for 2 separate cards and 2 separate health and safety tests.:cry:
So tomorrow I have managed to find work as a mate installing conduit and cable trays. This is my first time other than collage working as a mate and I am nervous as I have never installed conduit on big buildings any advice would be helpful also I was told to take basic hand tools any advice on...
Hi can anyone recommend a Glasgow or Scotland company that will price commercial tenders for me. I don't have the time to spend pricing larger jobs.
Thanks
Hi, I am in a debate with a friend who is also an electrician who is backed by his boss in this. Now I am aware of all the electrical zones like - 150mm from a ceiling and 150mm from the corner of 2 adjoining walls or partitions and horizontal or vertical from any accessory or switch gear. But...
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