Discuss SWA in drain permissable? in the UK Electrical Forum area at ElectriciansForums.net
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All of this conjecture,does not detract from what is basically,going to be the OP's decision.
There will not be regs to approve such an idea,because it is not good practice. Will the world end? Is it worse than a thousand other scenarios we encounter? No.
The OP needs to decide,and stand by that,with concise arguments at the ready,for if the shape of a pear appears...
As a prominent contributor to the IET,Mr Y Oda once remarked..."do,or do not...there is no try..."
Alongside rail tracks and also in other places, cables are often run in concrete trenches with concrete slabs as covers.
Then of course there’s those run in ducts and those just buried in soil.
Not sure that any of the above methods are water proof?
As a member of a local Bowls club for thirty years I can tell you that they are as tight as a duck’s rear end and we all know that this is water tight otherwise the poor old duck would sink.
They only like spending money at the bar and then always complain at the prices which are normally half what the pub down the road charges.
Offer them a floodlight on a timer fixed to the wall of their pavilion and if that is not suitable/ possible walk away.
Remember that these people have memories like elephants and will discuss your work with all and sundry. If anything goes wrong you will never hear the end of it and their grapevine network is more efficient that the local press and TV put together.
Hum ......... this has come up on here so many times - a simple table of recommendations would resolve about 95% of questions
A table of recommendations would cause more trouble than good. Just look at how a simple note that a reading above 200ohms may not be stable has resulted in the majority of electricians misunderstanding this as being the value they should aim for.
digging a narrow trench in the tarmac, about 1ft. inside from the drain, 12" to 15" deep, would not be too difficult, and a better solution all round. IMO.
Fit the yellow and black sleeping policemen with the cable runs inside rated at 30 tons some of them if screwed down correctly there is your ansew
Agreed, but the cost wouldn't be accepted by the committee. They've had to spend a lot recently getting bringing things up to standard and there's not a lot of budget left.
You need a proper duct a minimum of 450mm below surface with warning tape above it. Then run SWA through this duct. If budgets would not stand two poles and a catenary then I can not see that budget will stand a proper duct. Tell customer price for doing a proper job with a duct line dedicated to electrical cable. If he will not pay the price for a proper job then walk away.
Fit the yellow and black sleeping policemen with the cable runs inside rated at 30 tons some of them if screwed down correctly there is your ansew
Solar light ?
I've never used them before but they look like the solution thanks. They'll add an additional £200 to the bill though so may not get accepted. Great suggestion, thanks.
Running any cable in a drainage channel is a daft idea. They need de-silting from time to time and that is likely to be done with a drop scraper with a metal blade. By the time that happens, the cable will be submerged in silt and will go unnoticed, so the blade will be dragged along the channel gouging through the sheath of the SWA. By the time the guy with the scraper notices, the cable will be as waterproof as a tea bag and he'll go nuts. "Could've b****y killed me, live cable hidden in there like that!" Even if the cable is indestructible, it'll stop the channel being scraped clean, would have to go down on hands and knees with a trowel and work round it. Mutual detrimental influence: Cable obstructs maintenance of channel, channel puts cable at risk of damage.
The ramp sounds like a possibility.
Running any cable in a drainage channel is a daft idea. They need de-silting from time to time and that is likely to be done with a drop scraper with a metal blade. By the time that happens, the cable will be submerged in silt and will go unnoticed, so the blade will be dragged along the channel gouging through the sheath of the SWA. By the time the guy with the scraper notices, the cable will be as waterproof as a tea bag and he'll go nuts. "Could've b****y killed me, live cable hidden in there like that!" Even if the cable is indestructible, it'll stop the channel being scraped clean, would have to go down on hands and knees with a trowel and work round it. Mutual detrimental influence: Cable obstructs maintenance of channel, channel puts cable at risk of damage.
The ramp sounds like a possibility.
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