Guys,
we're wiring some lights etc in a garden.
There is a main feed to a control panel, which has a control system
this feed is a wire armoured cable...

my question is -

i'm assuming that i can run wire armoured cable with no trunking. i.e. striaght in the ground.

Assuming the standard Type P 500mm buried and marked with marker tape, is this ok?

And i know that my local building control officer needs to inspect etc ;-)

[Edited on 2/5/06 by Jumpy Guy]

Make sure you use a propper IP rated gland when terminating the armoured cable. Sounds daft, but lots of people seem to use indoor gland then wonder why they've got shorts.

Been ages since ive worked with a trenched cable, but think you need to use a bed of sand under the cable.

Think trench depth ay be 600 now.

Also ensure the circuit is protected by an RCD. Residual Current Device. With a 30mA trip. This is a requirement for all external wiring or out buildings. It will protect you from electric shocks.

Martin (IEE 16th Edition Electrician 236 Pt III)

thanks guys..

the 600 depth is only for allotments etc..

Should also be covered with concrete copings with the elect. hazard warnings cast in on the top and the yellow warning tape layed above that.
ie:
sand bed
suitably rated armoured cable
copings
hazard tape
500mm of soil etc.( not including turf )
and of course all conection methods suitably rated for their location as previously stated.

That's a proper job, that is.

[Edited on 28/4/06 by Confused but excited.]

As long as it is at least 500mm deep and has an rcd plus electrical marking tape, you will be ok.

Or just do what Alan Titchmarsh used to do on Ground Force, run some standard flex through a length of garden hose

quote:

---

Originally posted by Browser
Or just do what Alan Titchmarsh used to do on Ground Force, run some standard flex through a length of garden hose

---

quote:

---

Originally posted by nitram38

quote:

---

Originally posted by Browser
Or just do what Alan Titchmarsh used to do on Ground Force, run some standard flex through a length of garden hose

---

RCD protected though!

---

the rcd makes it less bad but armoured cable is always going to be safer.

Plan is-

230 V AC main feed to panel- 2.5 armoured, 500 mm down, haz. tape, laid on pea shingle, then sand.

24 V DC supplies to lamps - 1.5 armoured, as above.

RCD to each 230/24 transformer

only question left - part of the 2.5 armoured is directly embedded into concrete. - i dont have to run conduits or transfers, do i?

quote:

---

Originally posted by Jumpy Guy
Plan is-

230 V AC main feed to panel- 2.5 armoured, 500 mm down, haz. tape, laid on pea shingle, then sand.

24 V DC supplies to lamps - 1.5 armoured, as above.

RCD to each 230/24 transformer

only question left - part of the 2.5 armoured is directly embedded into concrete. - i dont have to run conduits or transfers, do i?

---

or run it above ground in a conduit atached to your fence wall etc.

last question-

if i run armoured cable, propely clipped and saddled, along a wall, does it have to be in conduit?
if so, is plastic trunking ok, since the cable is armoured?

quote:

---

Originally posted by Jumpy Guy
last question-

if i run armoured cable, propely clipped and saddled, along a wall, does it have to be in conduit?
if so, is plastic trunking ok, since the cable is armoured?

---

remember uv light will degrade pvc sleeving over time, make it brittle and prone to cracking. A cheap plastic trunking will protect it.

quote:

---

Originally posted by JoelP
remember uv light will degrade pvc sleeving over time, make it brittle and prone to cracking. A cheap plastic trunking will protect it.

---

another 'Last' query-

I have 230/12 V transformers buried to supply some lights in the garden..

the cable from the transformer to the light fitting is 2 core water resistant cable..

I'm hoping that this doesnt need any form of protection or depth.... only 12 V DC

from what i can see, the legislation only covers the mains side, once its come up from the 500 mm deep transformer, the 12v side can be run along the surface to the lamps?

quote:

---

Originally posted by Confused but excited.

quote:

---

Originally posted by nitram38

quote:

---

Originally posted by Browser
Or just do what Alan Titchmarsh used to do on Ground Force, run some standard flex through a length of garden hose

---

RCD protected though!

---

This is not good advice.
You should only use suitably rated flex for low voltage lighting ie; 12 - 24 volts.

[Edited on 29/4/06 by Confused but excited.]

---

Sorry if I ruffled feathers. This was not my intention.
I too find it annoying when tits on the telly are allowed to pull stunts like that.
It's not like they don't have sparks on set who should know better!
I realise that you were being somewhat tongue in cheek, but someone without any electrical knowlege wouldn't. Hence my reply.
Perhaps I should have worded it more tactfully.
Browser, please accept my unreserved apologies.

[Edited on 2/5/06 by Confused but excited.]

[Edited on 2/5/06 by Confused but excited.]

Your name isn't Jackson is it Browser?




Fertang Fertang Biscuit Barrel Two Sheds Jackson

Group hug!!

Now that we're all happy and smiling-

question- can someone confirm that the 12 V DC wiring to the garden lights doesnt need conduit ...

12V wiring requires no conduit as there is no shock hazard.
Mechanical protection is another thing.
Building site supplies are 55V to earth, so 12V is well below that level.

[Edited on 2/5/2006 by nitram38]

quote:

---

Originally posted by Confused but excited.
Sorry if I ruffled feathers. This was not my intention.
I too find it annoying when tits on the telly are allowed to pull stunts like that.
It's not like they don't have sparks on set who should know better!
I realise that you were being somewhat tongue in cheek, but someone without any electrical knowlege wouldn't. Hence my reply.
Perhaps I should have worded it more tactfully.
Browser, please accept my unreserved apologies.

[Edited on 2/5/06 by Confused but excited.]

[Edited on 2/5/06 by Confused but excited.]

---

quote:

---

Originally posted by Peteff
have mains lights in my two sheds

Your name isn't Jackson is it Browser?




Fertang Fertang Biscuit Barrel Two Sheds Jackson

---