14-06-2020, 05:15 AM
There have been several discussions about RCD vs isolating TX here and elsewhere. There is just one main reason for using an isolating TX: To connect earthed testgear to live chassis radios etc. This is also relevant when working on the mains side of switchmode PSUs and for the same reason.
Otherwise an RCD gives you a lot of protection if you touch a live conductor. A 10mA RCD will give you greater protection but at the expense of more nuisance trips.
Neither TX nor RCD is a panacea, nor a subsitute for working safely. For example in a radio with double wound mains TX and earthed chassis you can still get a nasty belt from the HT. Neither isolating TX nor RCD will protect you from that.
Otherwise an RCD gives you a lot of protection if you touch a live conductor. A 10mA RCD will give you greater protection but at the expense of more nuisance trips.
Neither TX nor RCD is a panacea, nor a subsitute for working safely. For example in a radio with double wound mains TX and earthed chassis you can still get a nasty belt from the HT. Neither isolating TX nor RCD will protect you from that.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
