On 1/12/2013 12:24 PM, wrote:
On Sat, 12 Jan 2013 09:15:49 +0000, Tim
wrote:

....

However, local regulations *may* permit:

1) http://www.tlc-direct.co.uk/Products/ASJ804.html - spring loaded
"maintenance free" joints.

2) Crimps - done with a correct ratchet tool and not the piece of tin from
some car radio shop. Granted, not much help with a 3 way tap.

3) Soldered joints, insulated in heatshrink and boxed.

The British IET 17th Edition regulations permit all the above. I have no
idea about the US NEC, or canadian regs.

....

Until very recently ALL of the above were forbifdden by american and
canadian code.
....

Well, that's just not so--soldering has been acceptable by NEC since the
git-go w/ the provision as above mentioned of mechanically sound
irrespective of the solder.

110.14 Electrical Connections. ...
...
(B) Splices. Conductors shall be spliced or joined with
splicing devices identified for the use or by brazing, welding,
or soldering with a fusible metal or alloy. Soldered
splices shall first be spliced or joined so as to be mechanically
and electrically secure without solder and then be
soldered. All splices and joints and the free ends of conductors
shall be covered with an insulation equivalent to that of
the conductors or with an insulating device identified for
the purpose. ...

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