A UPS does nothing for power surges. Power surges are addressed by that 'whole house' protector. And only if that protector is properly earthed.

A UPS is temporary and 'dirty' power during a blackout to protect unsaved data. Blackouts do not harm appliances.

Surges do hardware damage in microseconds. A UPS typically takes 10 milliseconds to respond. A UPS is too slow to protect hardware.

Each device is for a different anomaly. Even a UPS needs protection provided by a properly earthed 'whole house' solution. That solution means nobody even knows if a surge existed. Again, this 'whole house' solution is strongly recommended in rural venues.

In article
westom writes:

'George Shirley[_3_ Wrote:
;1013118'] My UPS system is only connected to the computer and is only
to allow me time to shut everything down properly
versus allowing a power surge or outage to do the job.
A UPS does nothing for power surges. Power surges are addressed by that
'whole house' protector. And only if that protector is properly
earthed.

A UPS that does not shunt surges as well was designed by an idiot.

A UPS is temporary and 'dirty' power during a blackout to protect
unsaved data. Blackouts do not harm appliances.

Surges do hardware damage in microseconds. A UPS typically takes 10
milliseconds to respond. A UPS is too slow to protect hardware.

If the power is interrupted at all, then you don't have a UPS. You
have a battery backup unit. That's what the "U" is -- "Uninterruptible."

Each device is for a different anomaly. Even a UPS needs protection
provided by a properly earthed 'whole house' solution. That solution
means nobody even knows if a surge existed. Again, this 'whole house'
solution is strongly recommended in rural venues.




--
westom


--
|Drew Lawson | Of all the things I've lost |
| | I miss my mind the most |

Some UPSes have tiny (near zero) protector parts so that naïve consumers will recommend it as a protector. Destructive surges are hundreds of thousands of joules. An adjacent protector can only block or absorb that surge. How does its (near zero) hundreds of joules absorb a surge that is hundreds of thousands of joules? It doesn't. But at hundreds of joules, it can hype 100% surge protection in color glossy brochures for consumers who ignore numbers.

Surges must be earthed (shunted) before entering the building. A surge shunted at the appliance simply shunts that surge into the appliance. A completely different device, also called a surge protector, does protection from surges because it is at the service entrance.

A typical UPS provides temporary and 'dirty' power during blackouts. It also does nothing to 'clean' AC power. Therefore it costs much less money - compared to another device also called a UPS that is located at the service entrance.


Has this growing season started late due to cold?

In article
westom writes:

Surges must be earthed (shunted) before entering the building. A surge
shunted at the appliance simply shunts that surge into the appliance.

Your UK wiring must be even more odd than I could have expected.
Surges are diverted to the separate grounding path in the house
wiring.

A completely different device, also called a surge protector, does
protection from surges because it is at the service entrance.

Surge protectors can be anywhere that has a ground connection. For
any NEC compliant wiring in the US, that is just about anywhere.

A typical UPS provides temporary and 'dirty' power during blackouts.

You like to repeat that alot. It does not make it true.

Maybe UK UPSs deliver dirty power. I suppose it is a fitting
substitute for leaking oil.


--
Drew Lawson | I'd like to find your inner child
| and kick its little ass