loop impedance on lighting circuit

[jimmymack56]

Hi everone,I am new to the forum and think its brilliant,I am currently
studying for my 2394&2395 and am testing everything in sight with a
fluke 1651 multi functional tester.When i try to do a loop test on a lighting
circuit,I follow all the instuctions,but i keep getting >2000 ohms,i am obviously
doing something wrong,can anyone please advise,Thanks in advance

 

[ipf]

Welcome, jim.

 

[davesparks]

Why do you say you are obviously doing something wrong?

 

[ipf]

Don't keep pressing the wrong buttons

 

[ipf]

Is it on one lighting cct or every lighting cct?

 

[ImpededLoop]

Welcome along.

Tell us how you're conducting the test and we'll try to help you to work out if you're doing something wrong.

 

[Leesparkykent]

That was quick, seems like he has bolted.

 

[Plonker 3]

Are you getting a reading you would expect on your R1+R2 or R2 test?

 

[HandySparks]

Does the instrument give you reasonable Zs figures on a socket circuit?

 

[jimmymack56]

I am testing between the earth and live at the switch,on the video I have that is how it shows it to be done,but I am not getting the same results,I need to point out that in the video they are using a megger and I am using a 1651 fluke

 

[telectrix]

does the fluke need to use 3 leads? the megger testers ( except the 1700's) use 3 leads on no trip.

 

[jimmymack56]

yes on sockets its giving a proper reading its just when i come to doing lighting circuits it seems to go wrong,can't think what I am doing wrong

 

[telectrix]

read post #11

 

[jimmymack56]

yes,it uses 3 leads,but I have just been using the L and E,as is done in the video,also in the video they are using a megger and i am using a 1651 fluke,but wouldn't think that the make would make much difference as long as its set on the right function. It is ZI for loop impedance on the tester I have,I am trying to track down a manual for it.

 

[jimmymack56]

yes,that is all ok. I wiil go through the video again and see if i have missed something,but watched it numerous times and still can't see what i am doing wrong.I will persrvere till I finally get it.