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Zs readings over limits
Former Community Member
Doing an EICR in a block of flats and quite a few of the lighting circuits have excessive Zs readings. All the circuits are on 60898 C10's without RCD protection with readings in the late 2 early 3 ohm range (max permitted 2.19). I know test result fails are generally a code 2 but these are LED panel downlighters with mostly class 2 drivers connected via choc boxes above the suspended ceiling so nothing really accessible. They would all comply with a C6 btw. Just wondered if you'd C2 this resulting in an unsatisfactory EICR
I get the same thing quite often C curve MCBs in EICR’s i do in communal flat areas, if there feeding LED lights i change them to type B which has double the maximum ZS.
I get the same thing quite often C curve MCBs in EICR’s i do in communal flat areas, if there feeding LED lights i change them to type B which has double the maximum ZS.
