Re: [PSES] Shorting switch - appropriate markings

2016-10-11 Thread John Woodgate
Your test house may well complain about the 'O-I' marking, because that is strictly reserved for 'power on-off'. Either machine it off or paint over it. With best wishes DESIGN IT IN! OOO – Own Opinions Only www.jmwa.demon.co.uk J M Woodgate and Associates Rayle

Re: [PSES] Shorting switch - appropriate markings

2016-10-11 Thread Doug Powell
Thank you all, I feel your comments are pretty close to being on target. I was hoping for simple symbolic way of representing switch position (open/short) and avoid using something that looks like a schematic. The switch we are now using already comes with an embossed "0" and "1" but this is not

Re: [PSES] Shorting switch - appropriate markings

2016-10-11 Thread Mike Sherman ----- Original Message -----
Application sounds like "lock out tag out. " Might offer another way to think about useful symbols (e.g., padlock). Mike ShermanGraco Inc. Sent from Xfinity Connect Mobile App-- Original Message --From: Scott AldousTo: EMC-PSTC@LISTSERV.IEEE.ORGSent: October 11, 2016 at 10:30 AMSubject: Re:

[PSES] Regulatory Engineering Position

2016-10-11 Thread Kaz Gawrzyjal
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Re: [PSES] Shorting switch - appropriate markings

2016-10-11 Thread Scott Aldous
Hi Doug, It might be worth looking into practices for MV switchgear, where circuits are sometimes grounded during maintenance (not the same thing, but a similar concept). Here is an example from Siemens: http://www.energy.siemens.com/us/pool/us/power-distribution/ansi-standard-products/medium-vol

Re: [PSES] Shorting switch - appropriate markings

2016-10-11 Thread John Allen
John’s suggestion sounds reasonable, but I think you also need the triangular Caution symbol and/or the ISO symbol telling you to “consult the manual”, adjacent to the switch. John E Allen. W.London, UK From: John Woodgate [mailto:jmw1...@btinternet.com] Sent: 11 October 2016 08:53 To:

Re: [PSES] Shorting switch - appropriate markings

2016-10-11 Thread John Woodgate
Would IEC 60417-5274: Manual change-over unit do? With best wishes DESIGN IT IN! OOO – Own Opinions Only www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. From: Doug Powell [mailto:doug...@gmail.com] Sent: Tuesday, O