NEN 1010 §612.7

Earth electrode resistance measurement

Aardweerstand-meting (Re)

Also known as: aardweerstand, aardweerstand-meting, aardimpedantie, earth-resistance-test, pen-geleider, pen-conductor, pen-split

Three-point or clamp measurement of resistance between main earth electrode and remote earth mass. TT system with 30 mA RCD requires Re ≤ 1666 Ω; in practice ≤100 Ω is targeted for lightning discharge and SPD operation.

See also