Discuss Fault on lighting cct prevents taking Zs in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

The use of C1 means it must have been an immediate danger, perhaps where machines and isolators are mislabelled which could end in disaster. At home having lights up being lights down is not so much of a concern (must fix that :) ).
I Agree with you Wilko, circumstances dictate. No hard and fast rules.
 
I can understand the light switch being furthest point from the CU if the light point was also the furthest light point from the cu but there would only normally be a live and switched live return at the switch, No neutral in order to take a Zs reading!
And if so, the furthest point and highest reading would be between the switched return and the neutral AT the light fitting, not the switch.
 
I can understand the light switch being furthest point from the CU if the light point was also the furthest light point from the cu but there would only normally be a live and switched live return at the switch, No neutral in order to take a Zs reading!
And if so, the furthest point and highest reading would be between the switched return and the neutral AT the light fitting, not the switch.
Zs on a neutral?
 
Then join E & N together , Metrel testers have a double end on one of the probes to do this. Apart from this the OSG shows how to take Zs from a light sw.
 
Yeah have done that before and you would expect readings to be the same but they weren't.
Does seem more accurate with the N connected, but maybe that's just the meter I was using at the time, when compared with a mates MTF 1552 which had been recently calibrated.
 
Yeah have done that before and you would expect readings to be the same but they weren't.
Does seem more accurate with the N connected, but maybe that's just the meter I was using at the time, when compared with a mates MTF 1552 which had been recently calibrated.
In these days of multifunction testers the idea of getting 2 identical test results from 2 seperate tests are long gone. That's the big disadvantage with MFT's
 

Reply to Fault on lighting cct prevents taking Zs in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock