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Did I say every circuit? Of course there are some exemptions - with provisos. I'll leave it to you to spell them out. :lol: Regards

Which it is, why would you think not, for an alteration to a fuseboard post 17th introduction? :lol: This is the most important change to the 17th RCD - the requirement for whole house protection and a must! :lol: You are required to ensure that any new work that you do, conforms to the...

The original argument revolved around the installation of an RCD to comply with the 17th, if MCB's were used to replace Fuses. There is no magic wand that will raise the installation to the requirements of the 17th. A PIR is recommended by both NAPIT and the NICEIC prior to carrying out a DB...

That was silly nitpicking, 30mA RCD protection is the only option to protect an older installation without, unless you want to rip the place apart! :lol: Regards

I have been going through the process with NAPIT, for the past few months, I'm now registered with 3 local LBA's, the kick off meetings are due anytime this month. Basic requirements were: - apprenticeship, 5 years experience, insurances and 2391 & 2381 within the last five years. Whether it...

Fit an RCD. :lol:

An EIC is required by a registered electrician that requires a designer signature amongst other requirements - he/she couldn't sign for the routing and the condition of the cables, if he wasn't involved, a way round this is to get a part P registree to work with you, at the start of the project...

You conveniently ignore the crux - that the RCD protection is required because the cables are installed in walls <50mm for an existing installation! It's an installation carried out to previous regulations - acceptable at that time, however, all work carried out since the introduction of the...

You would be altering the circuit characteristics, so requiring an EIC, RCD protection would also be required to the 17th edition. If you are with a scheme provider, confirm it with them! Regards

This would be similar to changing the DB, it would be notifiable, if it were allowed to the 17th edition of the wiring regulations - All the wiring would require RCD protection unless the cable was buried in the walls >50mm or run on the surface. Regards

How did you determine the winding had a short circuit? The armature has a continuous winding which is tapped off to the commutator segments, did you carry out a drop test on the armature? Regards

Why not ask the provider, if they're installing the "isolator" which is probably a DP MCB, they will want to be assured that this will protect the cable. Regards

Their site gives the correct information, this should be the policy for all LBA's although their employees may not be aware of this. http://www.planningportal.gov.uk/england/genpub/en/1115315206489.html It is advisable to ask the electrician to provide information about which scheme they...

If there is a 13A fuse within the unit to control the maximum load, this is no different from a fused spur from a final ring circuit, where the thermal load maximum is say, controlled by a 13A fuse. Regards

This is a restrictive practice, would you care to name the LBA for my NAPIT follow up? Regards

An RCBO is an RCD :D Regards

Unfortunately those electricians who are represented by a body such as NAPIT, ECA, SELECT etc., require to work to BS7671. Those from off the streets; with a 4 legged means of transport don't have to comply, you as the employer and householder would then carry the risk. This document explains...

You would be tackling this at the wrong end. The requirements for the installation would depend on the number of loads connected, mix of inductive/resistive loads, which loads have high starting currents, voltage drop limitations, allowance for spare future capacity and the kVAr of Power Factor...

Everybody is probably bored with this post now: - Last word again! ban-all-sheds, accused of high treason, is sentenced to death by the court-martial. He is allowed to make a final statement, after which he will be shot if the statement is false or will be hung if the statement is true...