ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades Wiring Manner in Russia

We are working for Russian construction project. According to our Russian partner, wiring methos for 24V DC instrument such as transmitter, solenoid valve, gas detectors, etc. shall be 3-wire system (+/- and earthing). As far as I know, the 3-wire method is very old Russian practice and it is not valid any more. Therefore we understand that europian style 2-wire system (+/- only) is sufficient for 24V DC instrument wiring. Also as far as we checked, we have never found out such code&standard requirement of "3-wire".

Good luck finding anything on Russian Codes. I spent a few months trying to track down High Voltage information last year with no luck.

You probably will have to get your Russian partner to produce a copy of their code. If they can't try to discuss a solution based on what you know about European standards.

From what I have heard about problems with Code enforcement in Sakhalin you might be screwed.

P.S. If you do get hold of actual Russian wiring code feel free to post it!