DIYbanter - View Single Post - Check your HVAC surge protector -- fail reports

Muggles

On 10/26/2015 7:48 AM, wrote:
On Sun, 25 Oct 2015 22:59:16 -0500, Muggles wrote:

On 10/24/2015 1:06 AM, wrote:
On Fri, 23 Oct 2015 23:22:17 -0500, Muggles wrote:

On 10/23/2015 11:18 PM, wrote:
On Fri, 23 Oct 2015 22:42:20 -0500, Muggles wrote:

[...]

We now have battery back-up/surge protectors for our computers that's
supposed to protect from those sort of lightning issues.

Unless they are "dual conversion" UPS units you are not getting the
protection you think you are.

Dual conversion?
Yes Also known as OnLine or full-time.. A more expensive unit that is
a "separately derived power source". AC Line voltage is converted to
DC through an isolation transformer and charges the battery. The DC is
then converted back to AC to run your computer.. There is no
switch-over time and only the ground is electrically connected to the
"mains" power.. They generally have superior surge isolation compared
to standby (the typical low end unit like an APC BackUPS) or line
interactive (the better more expensive units that can adjust line
voltage up or down without going on battery)

I'm not really understanding - at least I don't think I do. Is it like
a whole house power supply that automatically turns on when the power
goes out?
Np, it is a plug-in unit for computer and electronics use - generaly
1--1.5KVA but much larger onea are available, including units that
COULD run a whole house and ones that are hardwired for data center
use

OK ...hmmm not sure if mine is like that or not, but it works good
enough for surge protection so far.

--
Maggie