suplementary bonding again

[Geoffsd]

Not to too pedantic....

Not at all for full body , but..typo

Rx >= Uo/IAN - Rb

Rx ≤ Uo/I∆N - Rb

 

[ackbarthestar]

Not at all for full body , but..typo



Rx ≤ Uo/I∆N - Rb

So 22k ohms as opposed to 23k Ohms ?

 

[Geoffsd]

Yes, but it seems to be splitting hairs for dubious reasons.

Are we really likely to get a reading between 22 and 23 kΩ?

If it were 22.1kΩ would you test the customer to make sure they don't have a low resistance?

 

[ackbarthestar]

I can't see what's dubious about what it states in the guidance notes.

It does seem a little odd though, if the body resistance is reduced from a dry resistance of approximately 1k ohm to a wet resistance of something in the order of 100 ohms which might be the case in a bathroom location.

Having said that it wouldn't be in the Guidance notes if there was a probability of shock.