Running cable in sandstone wall

[Cbuk2k2]

I’ve got some exterior lights to install on a sandstone house, it’s quite quaint and old

Has anyone got any ideas for running cables? I don’t really want to use armour or conduit as it’s too industrial looking.

 

[freddo]

The lights at the front and sides had been wired in bare micc about 15 years ago and showed no signs of corrosion/going green. Looking through my 3 MICC reference books states bare copper sheath contact with lime, concrete and cement building products is fine, as is direct burial providing the soil doesn't contain ash/cinders or urine from farm animals.

It does state though when used on old buildings that have damp porous stone to either use PVC sheathed cables or bare cables stood off of the surface to prevent salts leaching out of the stone from affecting the cable sheath. MICC orange will soon fade down to sandstone like colour...

 

[WallaceP]

I looked at using bare MICC for a job once but it looked like i would have to buy pvc and strip it off. Which is no big deal but I could not find bare copper clips for the cable. The job never got passed a rough online cost before the customer decided to go for surface galv. conduit for the industrial look she wanted.

 

[freddo]

I usually buy MICC fittings / clips etc. from Remora Electrical as they supply the full range in all colours and can supply small quantities. They also sell all manner of specialist glands and adaptors. Their SWA and SY glands are far superior to the junk found in most wholesalers.

 

[pc1966]

The Remora site is not showing it bare (oh-er missus!) but others do offer some unsheathed MICC such as:

2 Core Bare Mineral Insulated Cable (MICC)

Buy Online Bare MICC Mineral insulated cable 2L4 In cut to meter lengths as per BS EN 60702-1:2002 from Edwardes Brothers. 24 Hour UK next day

www.edwardes.co.uk

In most cases just ask around!
[automerge]1598383867[/automerge]
Sorry, mistaken there as if you look at:

MICC Fire Survival Cable (Light Duty 500v)

Remora Mineral Insulated Cable is a copper sheathed cable, designed to safety transmit power and control signals of critical equipment.<br><br> Standards: BS EN 60702-1:2002+A1:2015<br> Cable Type: Fi

www.remora.net

It says:
Sheath (optional): Coloured LSZH polymer
Colour: Bare Copper, Black, Orange, Red, White
So again, just ask!