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Member postings for Andrew Mawson

Here is a list of all the postings Andrew Mawson has made in our forums. Click on a thread name to jump to the thread.

Thread: Workshop Lighting
24/05/2023 19:13:54

Replying to "Dave":

You are working on a fundamental misunderstanding. Despite the scale of my workshops I am NOT an industrial customer - I am a retired private individual and metered accordingly.

It was I that brought up the power factor issue with TLC thinking that it might have a bearing not them. Their representative used his own instrumentation and sadly I wasn't able to note what it was - in fact he had two sets to compare results (which they did)

23/05/2023 19:24:35

The only meter that is relevant here is the one by which you are charged by your electricity supplier.

If IT shows excess power consumed by ballasts and capacitors left in fittings upgraded to LED then you need to be concerned as it will hit you in the pocket.

This was the case for me any other theoretical arguments are just hot air.

23/05/2023 16:12:54

The 36 LED fluorescent replacement tubes referred to in the madmodder thread have been installed for over a year now without a single failure. It was when I was considering buying a further 28 tubes for my welding shop that I decided to check that they were actually saving power before investing more cash - and they weren't !

Now that the capacitors and chokes have been eliminated and I've installed the extra 28 tubes - the power saving is approximately 2kW in both my main workshop and the welding shop when all the lights are on and the perceived lighting is actually better.

23/05/2023 13:43:09

Article titled 'Electricity getting very expensive in the workshop'

by the way

23/05/2023 13:37:34
Posted by Robert Atkinson 2 on 19/05/2023 21:46:36:

While it is better to remove them, the losses in a the choke and power factor correction capacitor are pretty low when running a LED replacement "tube". If you doe remove them the fitting should be claerly labeled to that effect.
Better overall to just replace the whole thing with an LED fitting. I got some KBAT4 units from TLC and they are good.

On a connected note fluorescent lamps are effectively being banned by the EU from 1st of Feb 2024. They have removed the exemption from the mercury ban. Of course we in the UK are not in the EU any more so it won't affect us. No, wait, the UK has passed a law, almost identical to the EU one, removing the UK exemption effective 1st Feb 2024......

Edited By Robert Atkinson 2 on 19/05/2023 21:48:52

NO they are NOT low. In my case (author of the thread in madd modder forum) a 24 watt tube was demostrated to draw 80 watt - actually MORE than the original tube. My findings were verified by TLC who are a very large electrical distributor, and all credit to them they provided two sparks for a day to remove the capacitors and wire out the chokes in my workshop. The capacitors were the major factor.

Anyone want any power factor correction cPcitors - I now have about 40 surplus

I'd refer you to the original article in mad madder as there is a lot of detail omitted in this reference.

Thread: Tracing wires - advice needed
12/03/2019 23:19:29

I have an excellent ex BT wire tracer that I use for problems like this. Two parts, clip the first part (an oscillator) to the disconnected end of the wire to trace, trace using the second part that picks up the stray signal. Works like a charm. They very frequently are on eBay for not much money

Thread: John Stevenson
20/10/2017 10:37:44

I've known John ever since the only tech contact method was 'Newsgroups' - so a pretty long time !

He has always been helpful generous and informative - a true friend albeit only usually electronically connected. (Although he's been here to the farm a few times)

So John I'm sure that you know this already but my thoughts are definitely with you at this difficult time and I look forward to the time when having come through it, you can once more call me a Clumsy Bastard

Andrew Mawson

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