I need to run some CH pipe close to an SWA cable (perpendicular to, not parallel) OSG says cable should not be in contact or alongside. It won't be in contact, but there will be no more than a centimetre gap at best. That feels more than enough gap, given I can fit some of this stuff round the pipe
Ben
In article , Ben Blaukopf writes
get a bigger gap. Also, standard foam pipe lagging or quality foam based insulation would do a better job, shiny bubble wrap really doesn't cut it.
The shiny bubble wrap reckons it's equivalent to 33mm of foam...
I reckon I can fit a full crossover in there, so that'll improve things a fair bit.
Ben
But that is bollocks . . . .
. . . or for a slightly more complete answer, that product relies for its effectiveness on a reduction in radiation from its silvered surface, for this to be effective it needs to mounted in a still air gap of 50mm, no more, no less. If there's a draught it doesn't work, if it gets dirty it doesn't work and if you have something in close proximity it doesn't work. If there is an alleged insulating product less suited to use as pipe insulation I struggle to think of it.
As you may have guessed its elaborate claims are one of my pet hates ;-)
Prob safer, then you could use some 20mm (thick) climaflex (good pipe insulation) to keep the heat off the cable.
HTH
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