This post, I found on the local Orwellian news site, made me laugh so hard, I fell off my chair on my arse:
Since the last load shedding we and lots of neighbors have lost quite a few electrical appliances,tv and computer power supplies and a lot of light bulbs
Idiots like this, are the reason why the Internet should only admit people with a little more than empty space between the ears.
Firstly, the mains voltage is allowed to go as high as 257V AC, it happens, and in some areas of this country, the nominal voltage has been 250V AC (RMS)
Secondly, as a seasoned electronic designer, I am well aware of this, and designed my stuff to be tolerant of mains voltages as high as 275V AC (RMS). Most appliance designers are also aware of this. So this fool's assertion that "it can not laaik to run for long period at 240 and over" is a load of bull shit!
Thirdly, the bit that made me roll on the floor, in piles of laughter "gate motors running 5 times faster"
Well, what this brain donor doesn't realize is that most South African gate automation products run from a 12V DC supply. This supply is derived from a lead-acid battery, which is constant-current charged with a charger. The charger regulates its output to 13.8V DC (typically), so regardless if the mains goes up, or down, within limits, its still going to provide 13.8V DC. Additionally, since the gate speed is controlled by the controller card, under firmware control, the speed will be also constant. Below certain battery voltage, the product will go into under-voltage lockout and raise an error code on an LED or a display.
And then, finally, true Darwin award winning statement right here:
"it is also possible that with the higher voltage the electricity meters will run faster and record more units"
The meter registers power, active and reactive power using math. Voltage fluctuations are not going to affect anything. In fact, if this brain donor knew anything, he would know that electricity meters are designed to tolerate flicker, and this may not affect accuracy.