They’ve got their own.
Is it one of these https://airlinktransformers.com/product/japan-uk-voltage-converter-uk-ja1000#full-spec ?
It might be supplying the amps with a few more volts than they’re nominally spec’d for. The first issue is the fact that the UK mains voltage isn’t 230V. It’s usually 240V and if you’re unlucky then yours could approach 250V on a difficult day. A pessimistic assumption would be 8% up from 230V. The second issue is the transformer’s ‘regulation’. This is the difference between its output voltage when it’s on load and off load. Better transformers have tighter (lower number) regulation. An ordinary transformer should achieve 10%. I’ve seen high quality vintage ones manage 3%. The Airlink one above is a toroidal autotransformer, so should have good magnetic coupling, which is good for regulation. The specified voltage is always that at full load and the variation is generally linear with load. So a 10% regulation transformer run at half its rated load (500VA on a 1000VA unit) would deliver 5% more voltage than nominal.
Taking both the pessimistic numbers - +8% for your mains and +5% for your regulation - would mean that the amps might be running off 113V when the mains is high. Whether that would be enough to upset them I don’t know. If you have a multimeter handy and are happy to make high-voltage AC measurements then it might be interesting to check the mains voltage and the off load voltage from the transformer.
VB
Still think this outfit would have more impact if trying to achieve maximum social distancing. Certainly seems to work round here, particularly in Waitrose.
Starting to transform a small patch of lawn into a veg plot. Only c. 1.5m x 3m, but the kids’ old climbing frame is over it, so should be good for runner beans at least.
Interesting point, I measured a Sony VFET amp a while back, and it was specced for 220V. Plugged into the 240V UK mains I found that the main PSU caps were seeing 69V but were rated at 70V. Way too close for comfort. While this is not exactly the same situation, it was about a10% increase, and it shows how marginal these things can be. That 10% can be the difference between something reliable and something not.
In Selby we had a steady 250VAC at the wall, hit 260VAC on not-infrequent occasions - admitedly we were in line-of-sight of 3 major power stations. Here in Lincs is (for once) saner, usually around 240VAC.
A lot Chinesium is marginal at 220VAC, nominal 230VAC is concerning when the reality in most of the UK is 240VAC - never mind the allowed variation of +10% / -6% …
I dont do a lot appliances these days but every now and again i would be called out if an engineer had been three times and it kept failing…
Most of the time the measured ac measured waa high 250s and more often than not above required legal tolerance.
No one gives a fuck
That’s cos it’s inside the +10%, unfortunately.
Ive had readings of 265, called it in and then 4 days later called to say my meter needs recalibrating. Admittedly i could see station but …
My Monster power conditioner/elaborate multi plug thingy has a voltage display, it often shows 250v. I hide it by putting records in front of it if it goes above that…
FFS, that’s just plain irresponsible!
What size is that Simon?
35"
this one: https://www.ebuyer.com/914112-lg-34wl750-34-wqhd-ips-ultrawide-monitor-34wl750-b
it replaced an old HP 22" and a broken 20"
Whisky supply has just arrived!
Reading this article:
Adamsam are the same company that are alleged to have breached the copyright of The Enid and Spacemen 3.