EICR 100ma RCD TT systems

[westward10]

But how many times did people use tails clamps/glands etc to mitigate the risk?

It would not have been considered.

 

[pc1966]

But how many times did people use tails clamps/glands etc to mitigate the risk?

To me that is the key factor - some additional clamping so tails being wagged does not result in them loosening from the incomer, and the entry glands seem the perfect way of dealing with that and the risk of insulation being cut on the case edge.

Also said incomer's screws correctly tightened. And checked after a wiggle.

Even so, if it were me I would still like to see a 100mA delay RCD up-front even with an all RCBO board to eliminate a single point of failure in the electronics.