Value of ohmic resistance

[Ludovic Agathe]

What could be a typical value of the ohmic resistance for contacts in protective devices? I need those for verification of some assumptions made for a loop impedance calculation. If someone could also tell me if there is some measured value for wall sockets (for my general knowledge).

Thanks!

 

[James]

Typical value would be Zero or negligible

 

[Moley]

That's got me thinking which is never a good thing. I'm working away until Thursday night but I'm tempted on Friday to whip out my ductor (micro ohm meter) and actually check some sockets (not connected ones for obvious reasons) and see what sort of readings I get. I've got a feeling they will be quite high, well, high to me. All our connections have to be 10 micro ohm or less. I would assume who it's made by would have an influence too. Maybe the tolerances on the cheaper sockets wouldn't be so tight resulting in higher readings?
If I forget (bloody good chance) someone remind me Friday.