On Mon, 13 Sep 2004 22:39:22 +0100, Stefek Zaba wrote:

Tim wrote:


Just had a look. Are the Zeta blocks supposed to be clipped into the Sarel
boxes or just left floating - can't tell from the picture but it looks
like the latter.

Sorry to disappoint - just left floating, though with the stifness of
single-core cables, even 1mmsq will keep them where you neatly fold the
wires to make them stay; they're fully insulated so nothing Bad will
happen even if they do bump into each other under the influence of a
passing squirrel doing the tango. If you want 'em secured, you're into
buying the DIN-rail-mounting variant, which can (if I recall correctly -
it's raining and I can't be arrassed to check the ones out in the garage
;-) that there's a mounting hole in the DIN-rail clip which you could
use in the absence of a rail...

Doesn't sound too bad - and those blocks do look nice. Think I'll buy me a
pack to play with. The blocks are rated from 1-6mm2 which pretty much
covers everything domestic.

................................................. I do agree though, those
grub screws are a bugger to get in, esp. with 3 x 2.5 mm2 wires going in,
and I do find myself doubting one screw gripping on 3 loose wires
(sometimes one doesn't quite get held properly, which is why I twist then
together before clamping down).

Ahh, the "should I twist or not" argument - haven't had that one for a
few months now ;-) NICEIC dogma is not to twist: one reason being it
makes inspection harder (if you're doing e.g. measurements of ring
conductor resistance at multiple positions), and repeated twisting and
untwisting will lead to the conductors breaking. For the
regularly-inspected world this argument carries some weight: for the
domestic fit-n-forget world, the security of twisting outweighs, in my
addled mind, the anti-twisting argument...

That thought did cross my mind. I agree though - domestic is hardly
touched once in so twisting is definately better IMO.

Cheers

Timbo