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Hi all,
Have been asked to price up job and a little unsure on the following.
Currently the property is 1 big unit with a 100amp per phase, 3...
Hi all,
I am looking at a system that is supplied with a 3 phase supply and into a cabinet. Then external to the cabinet L1 and Neutral feed unit...
Hi I'm Darren and I work as a apprentice for a manufacturing company.
I was testing a 3kw 3-phase motor as it blew a fuse and when doing my IR...
Hi
Hoping someone knowledgeable can give me an idiots guide to power for an industrial unit we are leasing. Please bear in mind I have close to...
Hello! I'm new to the forums and I'll be honest, I'm no electrician. I do however use the infrastructure provided by electricians, mainly in the...
Hi, all.
I need your expert help in creating the internal wiring diagram of the motor with the following information we retrieved.
I have...
I've been trying to get hold of some of the above for a customer to replace their blown ones but can't for the life of me find 300mm T4's :(
Has...
Can anyone been ask to look at a mate sockets that tripping about every 30 mins to an hour. Any suggestion why??? Nothing new added.
Hi all,
I was dreading drilling a 32mm hole in the top of a Hager metal Consumer Unit for a 25mm Swa. There are square knock outs all along the...
Hi Guys
Some help if possible please.
Recently (July) installed a Soft Start Control (Trip Class 20) to a 37Kw Mill Motor (Rated 74Amps) DO Delta...
Question for someone... I have a 3P 1.5kw motor gearbox on a 5meter conveyor driven by a 3.7kw omron VFD, Frequency is set at 70/80hz (required...
Hey, newbie here.
I'm very experienced DIY, but just got into 3 phase motors this year. I bought several 3p motors at auction ranging from 0.5...
Hi Guys,
Thanks for the add, got a reasonable understanding but motors ant my thing.
Trying to run a 3kw 3ph motor on a Alan Bradley Inverter...
Star delta starter / motor problem.
Starter starts runs as should on bench with no motor connected. Getting 230v to e on all 6 uvw 1s and uvw2...
Hello all, after some advice please.
I have got a small job installing some 16a commando sockets in a farm workshop. The workshop has a 3ph sub...
Hi all, I have a machine that I believe was connected to 480v, I need to connect it to 208v. It is a German built machine with Seimens motors and...
Question for someone... recently inspected a 3phase 415v supply socket and noticed it's protected by a 40amp 30ma rccb... Income supply only has...
Why do they have the same bs en number? Allways fround this odd, and surely if they where unique to each other it would save the confusions on...
Alright everyone, i just registered on here for this one post. Im a third year apprentice from glasgow and i can sit my trade test anytime after...
Is such a system (230 volt L-L) legal under BS7671 or IEC 60364? Do I need double pole switches for light fittings?
Myself and a colleague have designed, drawn and built this control panel. We've been working on the build for 4 months.
Almost done.
Is for a...
Its my 40th birthday in 42 minutes time and my wife told me this evening we are expecting our 3rd child!!!!!!
Its almost a year ago that we lost...
Hi , We're currently refurbishing a large house and the customer wants to control all of the kitchen appliances from one central area e.g...
Hello all,
I have been asked to reconnect a motor which has a manual star delta starting knob for clockwise/clockwise operation. The motor is...
I'm ready for the abuse but I think I'm having a brain fart.... I'm fabricating a small centrifuge oil panel, all materials are here for me, it's...
Hi all,
Got a bit of a problem with a new generator when starting a 60hp motor.
It's a 250kva generator with a 125A mounted plug, the plug is...
Just a quick question for you lot.
would you put 4mm t+e cable on a 32a mcb.
or would you play it safe and stick it on a 20a mcb.
thanks in...
I have been asked to run a new circuit into a shop for a new lottery machine. Chap wants 3 x double metal clad sockets. I was thinking of running...
Hi everyone,
Hope your all getting ready for the big 2011 !!
Just a quick question.
Doing a quote for some kitchen lights and saw the kitychen...
Does anyone know of a 50-Amp 1-phase cooker switch for a domestic job that would look nice alongside Hamilton flatplate brushed steel finish other...
Hi all,
After some advice.
i have a run of 50mm 4 core on a farm to reinstate some GP buildings.
100A feed, with fused disconnect at the origin...
Hi all
I recently swaped a extractor fan over in a small office toilet. When finished I turned the toilet light on, only to find that the fan is...
Hi chaps.
Been to look at a customers new property and its definitely a do-er upper, did a Ze and checked the main fuse before i left and it says...
Carrying out and EICR on large factory and they have welding plug into 63 amp commando sockets but are protected by 30 amp BS 88 fuses.
Now...
hi all i ahve been reading up on tt systems am i correct in saying that a tt system can have a lower earthing conductor than a tncs or tns? can...
was doing some work in a kitchen this week, there are 2 sockets that are run off the old cooker circuit, 6mm t&e into the first socket then 2.5...
I have been asked to do a consumer unit change on a park home, 2x30amp 1x15amp 1x5amp, the supply form the meter is only 6mm, I am aware there are...
Hi
Half due to me slightly over sizing a cable and the terminals of the MCB being far to small, looks like i need to join 70mm and 35mm...
I was doing a eicr today. Came across a shower 9.5 kW Mira ,which had been installed for at least 8years.
its was brutally spurred off the...
Hi people,
Setup:
Connect TPN supply from meter to 315A fuse switch (mounted on same surface <3m away) feeding busbar chamber.
Will use 95mm...
4kW Dahlander motor on Göckel G2 sharpener draws too much current evenly across all of the phases at slow speed (14 Amps instead of 8.5), keeps...
Good morning, good people! I'd be very grateful for a current contact phone number of a named decision-maker in EDF's Microgeneration team...
Hi guys and girls, I'm quite new to this so sorry if its in the wrong section. I just have a couple of questions one regarding qualifications and...
First, apologies for the lengthy explanation that follows. What's more, I'm not sure that my questions fit into here, or the DIY bracket. Bump...
Hello all,
Been an electrician for 8 years now, but only an installations electrician for just over a year, been working with other electricians...
Hi guys,
I have been working in the mechanical industry for 13 years now as a mechanical engineer but have gained a lot of experience from...
I was doing a few bits for my old chap and he was very impressed with the volt stick,so I gave him a spare and a socket tester.later on he was...
......of proving circuits are dead, properly. Changing one of two consumer units today. Both fed off Henleys; I diss the tails for the cu I'm...
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