New outdoor light wiring - is this safe?

[myxiplx]

We've recently had a new drive fitted, including outside lighting. The new lights failed within a couple of months so their electrician is coming out again but I've taken another look and the work is not great. They tapped into the existing outdoor lighting circuit that's used over our porch, which is fine, but if you look at the photos, is the way they've done this actually safe?

They've just used 2.5mm mains wire, and cable tied it in place. It's not even running upwards into the boxes which surely means water is liable to flow in?

 

[blup]

Should use conduit to protect the cable and water will get in the back of the steinel box because it has just been screwed over the cable rather than the cable glanded in. The over sized cable may have caused this bodge. All round poor qualty/ borderline cowboy work.

 

[opps]

I am not an electrician...

You are not supposed to use twin and earth outdoors. AFAIK, it should be something like Rubber HO7RN-F Cable.

The guy has used a Wiska junction box. Great boxes but it would have made more sense to either use a proper gland, or, at a minimum, run the inappropriate cable in from the underside, rather than through the side.

From time to time, when painting the exterior of a property, a customer will ask me to replace exterior lights. If they have T&E, I run it into the back of the box as it exits the wall, and then use an exterior rated flex.

 

[Gigagator]

It looks a bit 'DIY Dave' to me.
Twin and earth outdoors unprotected is a bit amateurish, as already mentioned, but also those nylon cable ties tying the cable to the downpipe will degrade over time due to UV and fail. If cable tying anything outdoors I would always use stainless steel cable ties.

 

[ericmark]

Twin and earth not rated for out doors, most out door cable is black to resist UV although where run seems unlikely to have UV damage, also hard to find stuffing glands for twin and earth, tie wrap to drains not really the way to support cables, in the main very hard to stop water ingress, so often better to just have a drain hole, but a water tight box is clearly not water tight if no gland used.

The does not look like an electricians work, did you get the paperwork with it? At least a minor works certificate should be issued.

 

[myxiplx]

No, no electrical paperwork at all. I can ask for one, but I think that might be challenging, especially given their installation failed within a few months.

 

[Murdochcat]

Don’t pay their bill

That’s as rough as a ducks rear end