Hi,
It has been discissed in the electric power engineering under the title of cable sizes posted on July 5, and last reply was July 13. This is the link
thread238-62618
I guess in this case you need to make an earthing system with very low resistance to provide zero potential to the instrument. For electronic & telecom. instruments and systems it is always required 0.5 ohms, and its maximum acceptable value in 1 ohm.
One of the best techniques is making the...
Hi,
I don't know about the european standards. But in the Egyptian code it is only 3 sockets. A consultant told me that it is acceptable upto 5, and in some special cases it could be 6 (when the path for the 6 th one is not easy to be done and it will not be used much).
Gabi
Hi
I know a bit about current injection instruments for testing circuit breakers, but this is not suitable for you as you need 1 mA (small compared with their ratings I guess).
May I ask about the nature of this load?
Gabi