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Post by jcplumb on Jan 8, 2024 17:00:14 GMT
Evening gents. Been to an electric shower swap job today, multimeter across the terminals and it's reading 406v. This was in a domestic property that is not 3 phase.
Is that even possible?
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Post by battle1066 on Jan 8, 2024 17:38:26 GMT
Where exactly did you place the probes to get such a strange result within the shower or isolator?
Is the property flats with a commercial history?
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Post by jcplumb on Jan 8, 2024 18:27:54 GMT
I put the probes on the terminals of the shower. When I got home I tested the voltage at home and it was reading 350ish so put a new battery in the multi meter and now it's showing 235v. Then I tested the old 9v battery and it was showing 1.2v  I feel so silly now... |
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Post by battle1066 on Jan 8, 2024 20:21:27 GMT
I put the probes on the terminals of the shower. When I got home I tested the voltage at home and it was reading 350ish so put a new battery in the multi meter and now it's showing 235v. Then I tested the old 9v battery and it was showing 1.2v I feel so silly now... Why feel silly, it shows you had the ability to solve the problem - well done you. |
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Post by tomplum on Jan 8, 2024 22:00:55 GMT
Well I'm confused because I always assumed the battery only was there to read the resistance of the wires and the voltage was self measured in the domestic wires so, thanks for the lesson JC and it goes to prove the old saying of the brew cabin that every day is a skool day,,,  |
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Post by dickpuller on Jan 10, 2024 14:12:08 GMT
Evening gents. Been to an electric shower swap job today, multimeter across the terminals and it's reading 406v. This was in a domestic property that is not 3 phase. Is that even possible? A Multimeter is not really the best for testing Mains Voltage. But it’s better than a fucking Neon Tester!! A Fluke T90 is the baby you want, the Fluke stuff is built to US Army Grade/Specification & it’ll last you a lifetime!! Its 50 quid, what price do you put on your own Safety???!!! www.tester.co.uk/fluke-t90-voltage-continuity-tester |
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Post by cylinderfella on Jan 13, 2024 0:37:19 GMT
Evening gents. Been to an electric shower swap job today, multimeter across the terminals and it's reading 406v. This was in a domestic property that is not 3 phase. Is that even possible? A Multimeter is not really the best for testing Mains Voltage. But it’s better than a fucking Neon Tester!! A Fluke T90 is the baby you want, the Fluke stuff is built to US Army Grade/Specification & it’ll last you a lifetime!! Its 50 quid, what price do you put on your own Safety???!!! www.tester.co.uk/fluke-t90-voltage-continuity-testerIsn't it amazing that those neon testers are still around? If anyone watches John Wards video about them, they'll never go near them again! |
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Post by crowsfoot on Jan 13, 2024 18:40:49 GMT
They were very much a staple tool in the 70s and I can still see the plumber/electrician that I first worked with testing everything using it. Today they are considered a very dangerous item to have in the tool bag. Mind you if you've got nothing else it's much better than just grabbing the live wire for the test (after isolation)! In the 00s I had a "fancy dan" one that would light up so you could test if the light was working or not. It was a pile of shit because the test light would come on at anytime whilst you were using it and giving you a false live reading (scaring the shit out of you whilst you wired up the pump)! It's got a firm place now in "The museum of seemingly good ideas in plumbing (at the time)!  Good job it's just an imaginary museum because it would need a huge amount of floor space to contain all the so called wonder products |
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Post by joinerjohn on Jan 13, 2024 20:46:21 GMT
My dad had two tester screwdrivers, one of which didn’t work. I was up his loft to connect a replacement security light. Undid the connector block and asked him to turn off the lights at the consumer unit. He shouts up that they’re off. Touched the screwdriver to the connections and nothing showing so started unscrewing the brass screws holding the wires in. Next second I got an almighty shock off the screwdriver…… Yep, he’d handed me the one that didn’t work ( and the security light had been spurred off a ring main.) 😮😮😮😮😮 😂😂 Lesson learnt.
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Post by DIYDafty on Jan 14, 2024 23:14:47 GMT
Good timing this because I just made one of my better purchases. I've always made do with an analogue multimeter and sometimes used one of those dodgy screwdriver testers. Thought I'd treat myself and now I can't understand why I didn't buy one 30 years ago. I think 100% of the time I'm using a multimeter for checking for 240v or for continuity. This thing does both and not a single button or switch to press - not even to turn it on as its always on. Just put the probes on what you're testing and if its live it will beep and flash red. If its not live but zero resistance it will make a different beep and led to say there's continuity. It also has a second single pole test (like the cheap screwdriver one) so you can use it as a "make sure" test or when there is no handy neutral or earth to test against. www.amazon.co.uk/dp/B004NU2TM0?ref_=pe_27063361_487360311_302_E_DDE_dt_1 |
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Post by crowsfoot on Jan 15, 2024 10:32:21 GMT
I once attended a talk from a Martindale rep and they do provide top quality products in the electrical safety department. I was shown all manner of top quality safety devices "locking off" boxes, proving kits, testing sticks and was told about how dangerous the neon screwdriver is and what was going to happen to me if I ever used one. Did you know for instance that during an electric shock the electricity actually cooks your inner organs and it's how much damage this cooking of your organs does to your body that determines how serious that shock was. I knew he was using scare tactics to sell us top quality top priced Martindale products, yet what price do you put on your own health and safety? The whole kit he was selling was very expensive and the three electricians all got one bought for them by the firm whilst the poor plumbers did not (just the message to throw away our neon testers). I kept my neon and continued to use it right up to my retirement (just as a reassurance that the circuit was dead). Perhaps I had 50 odd years of luck? I did however get a free Martindale Pen for attending the course. |
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Post by crowsfoot on Jan 15, 2024 14:00:35 GMT
Good timing this because I just made one of my better purchases. I've always made do with an analogue multimeter and sometimes used one of those dodgy screwdriver testers. Thought I'd treat myself and now I can't understand why I didn't buy one 30 years ago. I think 100% of the time I'm using a multimeter for checking for 240v or for continuity. This thing does both and not a single button or switch to press - not even to turn it on as its always on. Just put the probes on what you're testing and if its live it will beep and flash red. If its not live but zero resistance it will make a different beep and led to say there's continuity. It also has a second single pole test (like the cheap screwdriver one) so you can use it as a "make sure" test or when there is no handy neutral or earth to test against. www.amazon.co.uk/dp/B004NU2TM0?ref_=pe_27063361_487360311_302_E_DDE_dt_1 In the hands of idiots all this electrical safety equipment could prove to be more dangerous than the old neon screwdriver methinks. This does not personally apply to DD (we all know is really a mastermind who is just masquerading as one)! |
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Post by dickpuller on Jan 15, 2024 19:13:06 GMT
Though we should always follow a ‘Safe Isolation’ procedure!! But I for one, have not always done so.
I cringe at times when I see the horrors of some Central Heating Controls wiring. Even qualified Sparks are dangerous.
I’ve a pal & I laughed like a Drain when he told me the Spark he uses to wire his systems, had ‘taken out’ a £250 PCB on a brand new boiler he fitted😂😂😂😂
Im going to up my game when wiring CH, always use Bootlace Ferrules etc. Use Opentherm controls more. Charge more & take more pride in my Spark Work.
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Post by joinerjohn on Jan 15, 2024 20:39:43 GMT
Though we should always follow a ‘Safe Isolation’ procedure!! But I for one, have not always done so. I cringe at times when I see the horrors of some Central Heating Controls wiring. Even qualified Sparks are dangerous. I’ve a pal & I laughed like a Drain when he told me the Spark he uses to wire his systems, had ‘taken out’ a £250 PCB on a brand new boiler he fitted😂😂😂😂 Im going to up my game when wiring CH, always use Bootlace Ferrules etc. Use Opentherm controls more. Charge more & take more pride in my Spark Work. A mate of mine has been a plumber all his working life, yet wiring a CH controller is usually beyond him. I've lost count of the CH controllers he's blown up.  |
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Post by tomplum on Jan 15, 2024 21:39:13 GMT
I've had a few ' bolts' in my time but. still alive to tell the tale and at the age of 71 still wake up every morning for a pee with a boner,,,, |
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