Andy Wade wrote:

John Rumm wrote:

To test your work you could disconnect the cable at both switches and
then short all the conductors together at one. Now use a low ohms
range to measure resistance between them at the other end. That should
prove you have a low resistance join. You can compare your readings
with the resitance / metre tables in the OSG (assuming you know the
approximate length of cable).


He should also do the full set of tests required for an MWC, i.e.:

(i) continuity of the CPC
(ii) insulation resistances
(iii) earth fault loop impedance (Zs)
(iv) polarity
(v) RCD operation, if applicable.

There is an argument that some of these should be done before[1] making
the repair as well, otherwise there is the danger that you uncover
pre-existing faults after you have made alterations and the client is
going to think it is your fault!

[1] obviosuly which tests you can carry out (other than iv and v) will
depend ont he nature of the cable damage.

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/