1 members (Scott35),
570
guests, and
40
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
Joined: Dec 2002
Posts: 308
OP
Member
|
Will a surge suppressor protect computers against a loose neutral on a three wire system ?
my guess is it will not. But i like to hear you as well.
Thanks Edward
Thanks Edward
|
|
|
|
Joined: Feb 2003
Posts: 288
Member
|
I don't think so. I wouldn't bet my computer on it, anyway.
|
|
|
|
Joined: Nov 2005
Posts: 827 Likes: 1
Member
|
It would probably offer you some protection but it wouldn't be doing quite what it was designed to do. If the leg you were on made excursions close to 240VAC because of a heavily loaded opposite leg, the MOV H-N in the suppressor might start clamping the sine wave. The MOVs would be dissipating energy for repetitve mS instead of infrequent uS or nS, as they are designed for. It would be a race between the MOV to blow or the overcurrent protection to trip. If the the MOVs clamp higher than 240VRMS, the suppressor would be of no use. Joe
|
|
|
|
Joined: Dec 2004
Posts: 161
Member
|
If your computer power supply is a wide range input type, typically 90 to 240 volts, then it should survive. Most recent ones here in europe are this type, especially as they now must have power factor correction built in.
|
|
|
|
Joined: Jan 2005
Posts: 5,445 Likes: 3
Cat Servant Member
|
Funny, my experience says "yes." I once made a poor neutral connection, and during the night fried a stereo power supply, a couple ballasts, two UPS units, and several surge suppressors; the computers that had the power strips before the UPS (or computer) came through undamaged.
|
|
|
|
Joined: Nov 2005
Posts: 827 Likes: 1
Member
|
e57: I can tell you.... NO PROTECTION WHAT SO EVER!
renosteinke: Funny, my experience says "yes."
Well, I can certainly see how you both could be right, depending on the selection of MOVs or TVSs(Transorbs) inside your surge suppressors.
Joe
|
|
|
|
Joined: Feb 2005
Posts: 219
Member
|
I once broke the nuetral feeding a strip type surge suppressor...POW!!! It sounded like someone fired a pistol. The suppressor blew up, but the computer that was plugged into it was fine. Go figure.
Rob
|
|
|
|
Joined: Jul 2004
Posts: 9,931 Likes: 34
Member
|
Many years ago one of the computer trade rags did a story on this. Thier conclusion was a good strip would protect you if the on strip O/C device opened up with the MOV overload. A lot still depends on the threshold and current capability of the MOV.
Greg Fretwell
|
|
|
Posts: 43
Joined: September 2013
|
|
|
|