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Hi all, does anybody know the name of this circuit and how it operates and the purpose of each component please? any help is much appreciated.
Thanks in advance
Could someone please explain to me what this circuit is used for? I believe it is a full wave bridge rectifier but I'm unsure as to what the zener diode is used for in this arrangement?
Thanks in advance
Hi was wondering if im doing this right. The question in: Determine for a chosen circuit "the minimum possible csa of cpc which will satisfy the requirements disconnection as ADS under earth fault conditions and the adiabatic equation as reg 543.1.3."
Circuit: Single core pvc 70* 2.5mm2 +...
I am totally new to fixing things but with the help of YouTube I think I've diagnosed my tumble dryer, now, I'd just like to know what others think before I go buying parts... its the Hotpoint FETC 70 condenser dryer & the red light for "empty water" is constantly on despite the draw being empty...
Hello,
I bought this LED lamp with 3 light tones (white, semi-yellow and yellow), and the problem is, every time I switch it on, it automatically changes to the next tone. I just want to choose one tone and turn it on always, and not change it at every switch on. Insides of the lamp on picture
Made the massive mistake of not taking a photo beforehand and am now stuck with a light fixture that I'm not sure how to wire. I'd removed an old light/fan fixture and had to remove one of the terminals and some wires in order to remove the fixture fully. I've attached the after photo in the...
The symptoms its been having to start with was the fuel gage only working sometimes and when i play music from my phone when a loud song came on the volume would go down but the stereo would still be on the same volume and id have to turn the volume down and back up and within minutes it would...
As the title suggests, I need help in trying to make the switiches & receptical work independently of each other. Circuit and photos are attached. So, the fan switich wont work if the light switch is not on and neither will the GFCI receptical. But the receptical will work independently of the...
I am trying to put some led light strips under the fenders of my fat tire E-bike. I’ve been looking at led light strips on Amazon, AliExpress and Alibaba for weeks. I’ve decided on, and please correct me if I’m wrong, SMD 5050 WS2812B 144 led per meter strips. I need 1 meter per fender. Many...
My 4’ old ballast burnt out its and old 70 one weighing a ton anyways I purchased a new t12 ballast but this one has 2 red 2 blue and 2 yellow old on didn’t have yellow will this work I was told to cap the yellow and run the red and blue the way they were in old ballast connect power and be all...
i had a 3 speed blow motor to an AC fan coil unit. I disconnected the wiring and installed a new unit and forgot how the wiring goes, i no expert and dont want to burn anything out...
from my electrical panel to the blower motor, I have a wire that has 120v, another wire has 40v, and a 3rd...
Hello guys currently doing my nvq with options skills and really struggling woundering if anyone has nvq copyed onto there computer and could send me it to have a look at, thanks
Hi guys,
Whilst renewing my loft insulation I came across a few runs of very old cable. (Please see attached pictures).
These cables are lead sheathed and looks to have a very brittle black insulation around the tinned copper or aluminium?
The red and black is wrapped around each wire in like...
The trunking in my shower has broken away from the tiling and i have noticed an electrical cable running through. My landlord wants to just replace the trunking and seal it back up with waterproof silicon. Is this wiring even legal and does it meet the safety requirements. Please help I do not...
My company have fully signed a test certificate in my name on a job that I have not been to, worked on or tested.
The work was done by a 4th year apprentice and tested by him as well. The test certificate was also filled incorrectly.
Is this illegal? And what would you guys do about this...
Led light fixture went dim. I replaced it with a new fixture and it won’t power on. I have 120v with a multimeter at the wire. When I wire up the light fixture the outlet in the hall goes to ground and hot reversed. I also have voltage at both neutral and hot wire when it’s wired in. Not sure if...
Good morning,
I was decorating yesterday and decided to remove switch cover to don't get it dirty. Unfortunately one of wires came loose or was loose already, because when I was unscrewing there it was sparking. Could someone please tell me where missing wire is from because I can't find it in...
Hi all, ive found myself in a bit of a desperate situation here.
I sat my compex 10 months ago and failed sections 01 and 04. I was meant to resit them a month from today but turns out I'm going to have to work away a week today. Anyway, the only date i could get for my resit is 4 days away...
Hi all,
I am going to fully rewire my house. What do I HAVE to do once I’ve rewired it? I am an approved spark, but do not have part P. Do I need to get an EICR by an a registered company or?
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