Polarity....

[ProDave]

R2 = 0.58 ohms

E-L = 35v...

L-N = 230v...

E-N = 18v....

Well IF R2 really is 0.58  hms then something else is floating.

E-N voltage plus E-L voltage should pretty well equal L-N voltage.

I would go back to first principles, measure R1, R2 and Rn all independently using the long lead method.

Do your tests with the light switch on, and with the light switch off. That will tell you if the switch is in the L or N.

This is all basic stuff

 

[samson337]

Well before adding an addition to any curcuit, you make sure the curcuit your going to be working on tests out ok, and can take the additional load before adding your bit. If that is done first then you wouldn't have asked this question, as your addition would have been fine. May be loose connection on other lights the usual wires taped up and pushed up into the celing and so on.

 

[matt.leung]

i was relplacing the spot lights in the bathroom as they where not IP rated..... loading of the circuit is not an issues as calculations where carried out before hand....

 

[Andy™]

i was relplacing the spot lights in the bathroom as they where not IP rated..... loading of the circuit is not an issues as calculations where carried out before hand....

bahtroom spots dont always need to be IP rated

 

[matt.leung]

they where right above the shower...

 

[Andy™]

they where right above the shower...

whats the ceiling height?

are they actually in zone 1 or not?

 

[matt.leung]

cant remember height off hand, as the shower cupbical has a slight step to it.... client did not like the old lights anyway...

plus the old spots where burning away at the joists... so they had to be moved.....

one joist was actually carved out to fit the spot....

 

[Technician]

 as the shower cupbical has a slight step to it....

....Just remember that zone heights are measured from

finished floor level,  not the level of the shower basin

floor or cubicle.