Hi guys, i am not sure if i am posting in the right theme, however, can anyone explain why the pv modules can withstand 15A backfeed current? (for example). What determines these 15 A, what part of the pv module blocks the current to 15 amps?
Hi guys, i just bought a over voltage mcb model eaton pop270 together with a 2pole main switch and would like to verify how to connect it? basically the over voltage mcb connects mechanically to the main switch and trips when the incomer exceeds 230v obviously there is some tolerance. thanks
Hi, just got a couple of 3m led strips to go up each side of a customers stairs, but they aren't the ones with the hard gel covering (I didn't realise when purchasing), question is are they safe to install as they are or would someone get a shock off them if the touched the positive and neg bits...
Question 1
So A needs to be increased to 10A
10x0.2=2V
5x0.2=1v
Totally 3V
230-3v=227
Answer D
Yet my tutor said it's C
Can someone else see what answer they get please
Question 2 and I'm struggling with this because I don't know the correct formula
The line current of a 400V three phase...
Hi
I need a module to fit behind a MK logic faceplate, that dims Megaman 6w LED spots.
I've
4 x 6w LEDs
5 x 6w LEDs
Whatever the electrician fitted stopped working after a few days. The standard MK dimmer module worked much better, though it did buzz.
Be grateful for some...
rossyl
Thread
attach
dimmable
dimmer
led
leds
module
recommendations
varilight
Had a call and the following email from a friend in installing in the Weymouth area called out to a property today. We are a fair bit further to the West and have also had to repair a system done by this company (now bust).
So how do you get hold of an obsolete module from an obsolete...
Hi,
I have recently moved into a new house with a Deltabell Dummy Box which is totally useless because at night it is not lit up like the full alarm systems around the estate. If I were to buy a complete Detlabell Plus Lightbox and supply it with a 12v supply, will it replicate a full alarm...
Just out of interest has anyone done or know of any training of the plc nature close to Cambridgeshire?
I obviously want to start basic and I want to learn basic fault finding on plc's?
Cheers lads
I've been down the local wholesalers tonight and wanted to buy a small light with a sensor/pir built in. Nothing spectacular, so he starts talking about a High Frequency Sensor Module to put in a Knightsbridge opal bulkhead, it uses microwaves. It was late In the day so I agreed to take it. Now...
We have a system installed ~2006 with 8 x 130W modules on a single pole mounting structure made by Unirac. We are now looking to expand the system, but I'm struggling to find anyone who can supply a similar (or identical) mounting system which would hold 6 ~260W modules. Wind and Sun can do a...
Hello I have just installed a MK Grid switch (6 gang) and one of the modules is a dimmer switch.
I have 12 down lighters on it and they all have dimmerble 5w LED lamps in them.
When I power up, the dimmer switch buzzes and the lights flicker and don't dim smoothly, they get brighter and then...
Evening guys, I'm checking a lot of EM lighting for a client, that they have informed me are not working. They are non-maintained and are recessed down lighters with a PL 26W CFL. I only scratched the surface this afternoon. The two I checked today appear to be the EM lighting module which is an...
good evening Ladies and Gents.
A, lets say, 'friend of mine' has fitted a 25mm 1g box to house three grid modules (Two LED dimmers and a standard switch), the crazy dude thought he had seen a 3 module grid set up somewhere so never thought to check it out during first fix !!
However, my...
FAA Greenie
Thread
box
click
dimmers
friend
grid
module
switch
thought
Hi, I was wondering if anyone could share their knowledge in removing a module that is surrounded by many others on a roof. There is adequate roof access & mansafe points to harness to but it was more the electrical safety issues relating to isolation & removing a row of panels to access the...
Hi Just replaced 6 GU1O (incandescent) lamps with 4.5 watt L.E.Ds and replaced Dimmer for Aurora dimmer (L.E.D compatible) does not seem to be as liquid as GU10s used to be although ok. My next customer is an ---- mother and wanted to know if anyone knows of better (dimmer)product for 8 x 6 watt...
Hi all,
A quick question, could a standard single module rcbo be classed as a form of double pole isolation? Or will I have to opt for the twin module.
Got a faulty rcbo on a caravan hook up point an a bit tight for sbace with curent settup in enclosure.
Anybody ever dealt with 4.5 module width MCBs? ... I'm looking at a job that requires a 3pole 80A MCB!
Have sourced 80A MCBs but they're 4.5modules wide rather than the usual 3 wide.
I've only dealt with MCBs upto 63A up until now so my question is what sort of board do these fit into and where...
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