On Thu, 09 Feb 2017 20:03:13 -0000, trader_4 wrote:

On Thursday, February 9, 2017 at 2:35:23 PM UTC-5, James Wilkinson Sword wrote:
On Thu, 09 Feb 2017 17:38:16 -0000, trader_4 wrote:

On Thursday, February 9, 2017 at 10:15:52 AM UTC-5, James Wilkinson Sword wrote:
On Thu, 09 Feb 2017 14:53:02 -0000, westom wrote:

On Wednesday, February 8, 2017 at 5:18:18 PM UTC-5, James Wilkinson Sword wrote:
I can't believe it's that likely for 4800V to get onto a 240V line. Possible, but so rare it's not worth bothering to install protection. I protect against little spikes, or voltages about 30V under/over what they should be.

30 volts and higher is already solved inside each appliance. Why would anyone spend money to protect from something that does not even cause damage? That is already made irrelevant by what already must exist inside every appliance?

Might do in quality appliances, but not cheap ones, or LED lightbulbs.


Even cheap appliances have MOVs for small surges and will tolerate the
~ 12% overvoltages you're talking about. I don't have much experience
with LEDs, but see no reason why they can't tolerate your 12% over voltage
for seconds.

More like about 3 hours.


What kind of backward country are you living in over there? If I
had over voltages of 30 volts happening for even seconds at a time,
the power company would come out, find out what's wrong, and fix it.

We are given 230V +/- 10% (not sure of the exact percentages). Unless it goes outside that, they are not obligated to do anything. It appears they recently fitted a new transformer presumably to cater for higher usage, which is currently running nowhere near full capacity, and therefore over voltage. The electrician I got sent out by the power company said they can step it down, but don't have to as it's within legal limits.

If all these things were as sensitive as you claim, we'd
see a lot of failures. I sure don't.

Do you have 3 hours of 30 volts over?

Since we are at 120V,

No, you have 240 aswell.

that would be 15 volts over, and no,
I don't have 15 or 30 volts over. WTF is wrong over there?

Transformer loads change the voltage.

Do you have cheap LED lightbulbs?

I have some 5" retrofits for recessed lights that I paid $10 a piece
for. Similar are selling for $3 a piece now at Costco. Is that cheap?

Yes.

--
What advice don't you want to hear from a doctor before an operation?
"Whatever you do, don't go into the light."