标题: BS EN 50065-1:2011 Signalling on low-voltage electrical installations [打印本页] 作者: 2013 时间: 2014-10-4 18:09:45 标题: BS EN 50065-1:2011 Signalling on low-voltage electrical installations
BS EN 50065-1:2011 Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz — Part 1: General requirements, frequency bands and electromagnetic disturbances