In message
<64D32EE8B9CBDD44963ACB076A5F6ABB0261CD0B@Mailbox-Tech.lecotech.local>,
dated Mon, 16 Apr 2012, "Kunde, Brian" <[email protected]> writes:
why does GFCIs sense high frequency current?
Because no-one thought to check that they didn't. You will understand
that for power system people, 2.4 kHz is a 'high frequency' and the
upper limit of the EM spectrum is 9 kHz. (;-)
To be fair, I understand that it's far from obvious that this
high-frequency sensitivity should occur, but it does.
--
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
Every lame duck needs help from Dame Luck.
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
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