-=PCTechTalk=- Re: Surge protectors and extension cords
- From: RMB White <roguer@xxxxxxxxxx>
- To: pctechtalk@xxxxxxxxxxxxx
- Date: Thu, 24 Jul 2008 17:16:08 +1200
Don!
Thanks again for excellent advice. I have a few questions, but need to
first understand why you advise against Surge Protectors.
Power in NZ is at 240 volts, and I have the option of buying
1. an O.B.O betterman German Surge protection device which is basically
a Circuit breaker containing a Cartridge and is installed in the Outside
Main switchboard next to the Power company's meter.
The Cartridge trips (or burns out) at 280 volts (and if burnt out needs
replacing). This would appear to protect the whole house.
2. A SpikeFree Chinese product which plugs to an internal socket near
the computer and provides 8 power outlets, two phone line sockets, TV
cable and two Satellite sockets and is rated at 5,200 joules
I had thought one (or both) of these would be essential items, and THEN
add a UPS. I do not have the luxury of sitting by my machine most of the
day, and in fact may not check emails for a coupla days so if the power
did fail it would need a big UPS to cover that lappse of time. But if a
close lightning strike had fried the rest of the house, I would not even
be able to make coffee.
Roger W.
>
> ----- Original Message -----
> From: "Don101" <don101@xxxxxxxxxx>
> To: <pctechtalk@xxxxxxxxxxxxx>
> Sent: Monday, June 30, 2008 9:33 AM
> Subject: -=PCTechTalk=- Surge protectors and extension cords
>> Surge protectors are rated in Joules. The higher the rating, the better
>> protection. A large surge, such as a close-by lightning strike, that
>> would
>> be stopped by a 4500 joule surge protector would zap through a 650 joule
>> surge protector like a warm knife through melted butter. Surge protectors
>> do nothing to protect against power outages. . . not even the short
>> interruptions provided by many utility companies.
>>
>> I do not recommend you depend on a surge protector to protect you from
>> electrical overload. I encourage my customers to buy battery backup units
>> or Uninterruptible Power Supplies (UPS) instead. A small $40-50 unit will
>> provide enough power for your system long enough for you to complete a
>> safe
>> shutdown. I have two $175 units to protect literally everything in my
>> system.... CPU, monitor, printer, speakers, router, modem, external drives
>> and my telephone and a small desktop fan.
>>
>> Many home improvement stores and hardware stores have trained electricians
>> on their staff. Pick his or her brain and then buy an extension cord
>> there.
>>
>>
>>
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