New Build Electrical Installation queries

[mstoker1990]

Still wont let me upload the images, just states which URL to use.

Fully agree, Dont know whether the Twin and Earth runs in the cavity or behind the plasterboard on the backside of the meterbox. If this is the case it wouldnt even be in a safe zone nevermind needing RCD Protection.

The Twin and Earth Probably runs about 6-7Metres

 

[telectrix]

i had that problem some time ago. would only allow pics from url, and not from computer. could be a browser problem. pm marvo or sintra.to see if it can be sorted

 

[Deleted member 26818]

To be a pedant, the requirement to provide additional protection for cables concealed in walls, allows for:
Installing at a depth greater than 50mm.
Earthed metallic sheathing.
Earthed conduit or trunking.
Mechanical protection sufficient to prevent penetration by screws or nails.
By running cables in prescribed zones and providing 30mA RCD protection.

Always seemed odd to me that only the last option requires the cables to be run in prescribed zones.

 

[davesparks]

To be a pedant, the requirement to provide additional protection for cables concealed in walls, allows for:
Installing at a depth greater than 50mm.
Earthed metallic sheathing.
Earthed conduit or trunking.
Mechanical protection sufficient to prevent penetration by screws or nails.
By running cables in prescribed zones and providing 30mA RCD protection.

Always seemed odd to me that only the last option requires the cables to be run in prescribed zones.

It's not that odd when you look at the history of it, the bit about RCDs was pretty much just added on to the end of the existing regulation. The bit about the safe zones was always there, it's just adding the RCD that was new.

 

[The Electrician]

Please can we see some photos?
From what you have described:

1 and 2 yes, that sounds absolutely disgusting that someone has done work like that. It pains me that people are being allowed to work as an electrician without being competant and fully trained during a proper apprenticeship. Electrical work is for professional people, not monkeys who don't care or understand what they are doing. My opinion is that the individuals who did this work should be traced and banned from electrical work/prosecuted and fined.

As for 3, it is standard procedure to put smoke alarms of the lighting circuit - one of the reasons is, as another poster said, if the lights are not working you know the feed is off. I do wish there were National/International standards of practice for electrical installation.