PIR
- Thread starter ml1936
- Start date
Sponsored Links
- Joined
- 27 Jan 2008
- Messages
- 23,711
- Reaction score
- 2,673
- Location
- Llanfair Caereinion, Nr Welshpool
- Country
Yes it is preferred method as when you remove wires to test you can introduce faults.
S
sparkyspike
You don't even need to note it down. The normal method, as you probably know, is to measure R1+R2 and calculate Zs, which avoids live testing and is more conclusive.
it's impractical to calculate R1+R2 from a Zs reading..
you will have many parallel earth paths included in a Zs reading and as such it would give an artificially low R1+R2 reading..
you will have many parallel earth paths included in a Zs reading and as such it would give an artificially low R1+R2 reading..
Sponsored Links
Plus how can you confirm that you have a complete ring on a ring main, and no rings within a ring if you dont carry out R1+R2
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
