Hi to everbody!
I am looking for the document of the British Standards institution ,coded as BS EN50065-1:1992 and tittled:
" Specification for signalling on low voltage electrical installations in the frequency range 3KHz to 148KHz.
General requirements, frequency bands and electromagnetic disturbances".
I manage to find it at the Bsi web page, but they ask for £50!!! (I can afford such an amount, HELP!!!)