> -----Original Message----- > From: Bob Howells [mailto:[EMAIL PROTECTED] > Sent: Friday, 14 March 2003 10:35 AM > To: wamug org > Subject: Re: Black Thursday and Surge Protectors > > > > > Katinka Mills wrote: > > > > -----Original Message----- > > > From: chesnutt [mailto:[EMAIL PROTECTED] > > > Sent: Thursday, 13 March 2003 10:43 PM > > > To: Multiple recipients of > > > Subject: Black Thursday and Surge Protectors > > > > <elsnipo> > > > > > Can anybody recommend some useful surge protection gear for me for the > > > future that will adequately protect > > > Macs/printers/faxmachines/zips/answering machines etc. I > don't wish to > > > set up megabuck UPS's; but I would like to keep my gear safe. > > > > > > > There is only one type of surge arrestor that will even remotely have a > > chance of working, and that is the type that is fixed to the > switchboard and > > protects everything off it, the *Earth* resistance is very > important as all > > that excess energy has to go somewhere. > > > > > > And the Earth RESISTANCE will be related to the EARTH connection > to your Power Board, which typically wires ( green/yellow or > just green ) > to a Pipe or Stake in the Garden , usually found to be in nice > DRY SANDY SOIL........ or stuck through the Brick Pavers . > > NOT GOOD ENOUGH. > > YOU NEED TO FIND A WAY TO KEEP THE SOIL...... DAMP . > > > > Bob
I agree Bob, The earth Stake should be an industrial 2.1M long 19mm one, and the more prone to lighting or power surges the more stakes you put in. A tap should be placed next to each stake. The Tap should be opened fully for 2 minutes a day everyday to keep the ground damp and keep the stake working. For Communications, I run multiple steaks each ~2-3M apart and run a 19mmm irigation tube with decent sprays to each stake and just get the owner to "water them" by turning the system on once a day for 10 minutes. The system needs to be sign posted to stop Water corp fining you for using retic on off days, you can just say it is an electrical protection system and needs to be done (for the water conscious, a bucket of water twice aday from the bath will be ok (the soap will break down the soils inability to hold water properly) I also mentioned upgrading the earthing system, for comms use with earth wire runs over 10m I run 25mm2 cable, under 10m I use 16mm2, it is expensive, but nowhere as near as replacing equipment. Regards, Kat. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.443 / Virus Database: 248 - Release Date: 10/01/2003
