I have to lengthen a couple of runs of lighting (1mm & 1.5mm) T&E to
reach a boiler connection block that I have had to move. The runs are
currently clipped to a wall.

Can I crimp and heatshrink wrap the connections and clip securely or
is it required to put it in a box? It's a bit of an awkward place to
get at and a box will be a bit of a pain to squeeze in.

I guess if I have to put it in a box I can simply do the crimping and
wrapping and then put the lot inside a 'choc box'.

--
Chris Green

wrote:

I have to lengthen a couple of runs of lighting (1mm & 1.5mm) T&E to
reach a boiler connection block that I have had to move. The runs are
currently clipped to a wall.

Can I crimp and heatshrink wrap the connections and clip securely or
is it required to put it in a box? It's a bit of an awkward place to
get at and a box will be a bit of a pain to squeeze in.

I guess if I have to put it in a box I can simply do the crimping and
wrapping and then put the lot inside a 'choc box'.


4" 20mm conduit, two Pratley flat T+E glands (rare, but available from TLC)
and two threaded adaptors for the glands solvent welded on the conduit.
Slimmest containment I can think of - should be fine to let that dangle (the
glands will support the joint on the cable) and no need for heatshrink as
the insulated crimps will be contained. Fix conduit with a couple of clips
for a more solid job.

Next option, though bulkier might be a 3 way Hager-Ashley maintenance free
junction box - those have cable grips and mounting screws.

--
Tim Watts

Tim Watts wrote:
wrote:

I have to lengthen a couple of runs of lighting (1mm & 1.5mm) T&E to
reach a boiler connection block that I have had to move. The runs are
currently clipped to a wall.

Can I crimp and heatshrink wrap the connections and clip securely or
is it required to put it in a box? It's a bit of an awkward place to
get at and a box will be a bit of a pain to squeeze in.

I guess if I have to put it in a box I can simply do the crimping and
wrapping and then put the lot inside a 'choc box'.


4" 20mm conduit, two Pratley flat T+E glands (rare, but available from TLC)
and two threaded adaptors for the glands solvent welded on the conduit.
Slimmest containment I can think of - should be fine to let that dangle (the
glands will support the joint on the cable) and no need for heatshrink as
the insulated crimps will be contained. Fix conduit with a couple of clips
for a more solid job.

I was considering conduit, bit of a pain to get into place but would
look neater (not that it matters, it's well out of sight).


Next option, though bulkier might be a 3 way Hager-Ashley maintenance free
junction box - those have cable grips and mounting screws.

Yes, possibly, though the choc-box is probably no bigger.

--
Chris Green

wrote:

Tim Watts wrote:
wrote:

I have to lengthen a couple of runs of lighting (1mm & 1.5mm) T&E to
reach a boiler connection block that I have had to move. The runs are
currently clipped to a wall.

Can I crimp and heatshrink wrap the connections and clip securely or
is it required to put it in a box? It's a bit of an awkward place to
get at and a box will be a bit of a pain to squeeze in.

I guess if I have to put it in a box I can simply do the crimping and
wrapping and then put the lot inside a 'choc box'.


4" 20mm conduit, two Pratley flat T+E glands (rare, but available from
TLC) and two threaded adaptors for the glands solvent welded on the
conduit. Slimmest containment I can think of - should be fine to let that
dangle (the glands will support the joint on the cable) and no need for
heatshrink as the insulated crimps will be contained. Fix conduit with a
couple of clips for a more solid job.

I was considering conduit, bit of a pain to get into place but would
look neater (not that it matters, it's well out of sight).


Silly question - does the cable not pass by somewhere more accessible where
you can joint a new piece on?

Next option, though bulkier might be a 3 way Hager-Ashley maintenance
free junction box - those have cable grips and mounting screws.

Yes, possibly, though the choc-box is probably no bigger.


I'd rate the Ashley box over the chocbox for robustness. Chocboxes are OK
out of the way, but if it might get hit, the Ashley will be more solid.

--
Tim Watts

Tim Watts wrote:
wrote:

Tim Watts wrote:
wrote:

I have to lengthen a couple of runs of lighting (1mm & 1.5mm) T&E to
reach a boiler connection block that I have had to move. The runs are
currently clipped to a wall.

Can I crimp and heatshrink wrap the connections and clip securely or
is it required to put it in a box? It's a bit of an awkward place to
get at and a box will be a bit of a pain to squeeze in.

I guess if I have to put it in a box I can simply do the crimping and
wrapping and then put the lot inside a 'choc box'.


4" 20mm conduit, two Pratley flat T+E glands (rare, but available from
TLC) and two threaded adaptors for the glands solvent welded on the
conduit. Slimmest containment I can think of - should be fine to let that
dangle (the glands will support the joint on the cable) and no need for
heatshrink as the insulated crimps will be contained. Fix conduit with a
couple of clips for a more solid job.

I was considering conduit, bit of a pain to get into place but would
look neater (not that it matters, it's well out of sight).

Silly question - does the cable not pass by somewhere more accessible where
you can joint a new piece on?

Yes and no, it's possible but not more accessible - in the eaves where
I have to combat creaking knees and wire-wool insulation.


Next option, though bulkier might be a 3 way Hager-Ashley maintenance
free junction box - those have cable grips and mounting screws.

Yes, possibly, though the choc-box is probably no bigger.


I'd rate the Ashley box over the chocbox for robustness. Chocboxes are OK
out of the way, but if it might get hit, the Ashley will be more solid.

I've actually managed to squeeze a Wagobox in the corner and not
having to screw any terminals down makes it possible to actually get
the wires into it and connected.

--
Chris Green

On 25/04/2012 17:33, wrote:
I have to lengthen a couple of runs of lighting (1mm& 1.5mm) T&E to
reach a boiler connection block that I have had to move. The runs are
currently clipped to a wall.

Can I crimp and heatshrink wrap the connections and clip securely or
is it required to put it in a box? It's a bit of an awkward place to
get at and a box will be a bit of a pain to squeeze in.

Assuming you use insulated crimps and then overall heatshrink (or
uninsulated ones with their own individual heatshrink), then yes you
could do it, even though it might look butt ugly.



--
Cheers,

John.

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wrote:

I've actually managed to squeeze a Wagobox in the corner and not
having to screw any terminals down makes it possible to actually get
the wires into it and connected.

Another good choice as the cable grips are nice and solid.

--
Tim Watts