Article View: comp.sys.acorn.misc
Article #184Re: Strongarm Installation
From: Stuart Poulton
Date: Fri, 02 May 1997 00:00
Date: Fri, 02 May 1997 00:00
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>Don't use that stupid wrist strap which they supply, which, with the thing >so hard round your wrist that it constrains your blood flow, will still be >almost useles due to too high a resistance. Leave the machine plugged in, >touch the power supply case, then attach a proper wriststrap to it. That "stupid wrist strap" as you call it isn't that stupid !!! As for it having an high resistance it's there for a good reason. In the event of you using the strap and inadvertantly touching something at mains potential, you are not likely to DIE !!! Apply ohms law to a wrist strap of say .... 2 mega ohms thats 2000000 ohms. Using ohms law V=IR for a mains voltage of 220 Volts Gives a current of 0.00011 Amps .... Ie a very small current indeed. Alot better than say 13 AMPs going through you. This still allows the static build up from your good old nylon carpet, to flow to earth and not flow through your nice cheap StrongArm chip Remember folks that its the Current that kills you NOT the voltage !! Stu -- Stuart Poulton
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 104d22,d589a351576fe7e1 X-Google-Attributes: gid104d22,public X-Google-Thread: 106045,d589a351576fe7e1 X-Google-Attributes: gid106045,public X-Google-Thread: f73c4,da3f86f1262e0ddb X-Google-Attributes: gidf73c4,public X-Google-Thread: 115f30,d589a351576fe7e1 X-Google-Attributes: gid115f30,public From: Stuart Poulton <stuartp@neptunegroup.demon.co.uk> Subject: Re: Strongarm Installation Date: 1997/05/02 Message-ID: <zH0uRDAGXiazUAzh@neptunegroup.demon.co.uk> X-Deja-AN: 238930862 Distribution: world X-NNTP-Posting-Host: neptunegroup.demon.co.uk References: <ant271849d07iuca@IanScott.zetnet.co.uk> <na.900d1a4782.a60260hbradley@argonet.co.uk> <ant291218313f3nA@succexpr.demon.co.uk> Organization: Neptune Group Newsgroups: comp.sys.acorn.misc,comp.sys.acorn.extra-cpu,comp.sys.acorn.hardware,argonet.acorn.misc