August 30, 201610 yr I need about 50m of 110mm ducting for electrical cable - SP Energy have quoted me £93.24 including VAT. Who have you guys used?
August 30, 201610 yr Not a bad price - do you really need 110mm though as that is a very chunky duct ..?
August 30, 201610 yr SSE specified 110mm for the electricity duct but did not question when presented with she smaller 65 (or was it 56?)mm duct. I only needed short lengths so bought some leftovers from ebay.
August 30, 201610 yr Most I've seen are 65mm ..?? If it's only taking a single supply cable then that should be fine as long as the bend radius isn't too tight.
August 30, 201610 yr NIE have asked me to fit 150mm ducting for a mains branch off cable, and then a 100mm duct after a multi service joint. thats for 35mm cable. Seems a bit much but will give room for additional pull cord etc.
August 30, 201610 yr 100mm duct makes it alot easier to pull cable esp if there are bends. You would never pull 35mm cable through 54mm duct as the rope and tape will catch at a bend and then you are in the shat.
August 30, 201610 yr Not bad price. Last time I bought 3no. 100mm rolls (gas, leccy, water) I seem to remember it being over 300 with Vodka and Tonic. Citrus rings a bell as the firm who supplied
August 30, 201610 yr By the way even National Grid are now requesting 110mm. You need to lay any smaller stuff really well with minimal bends to avoid problems. I got a bit nervous when I saw the size and stiffness of the 95NCE? which had to be pulled thru my 110mm. Lucky we had some digger tracks to wind the rope up on!
August 30, 201610 yr That seems a good price. I've been looking here (albeit for green duct for CCTV). Their 110mm is more expensive: http://www.drainagepipe.co.uk/products/flexible-underground-ducting/flexi-duct-x-50m-coil/110mm/black/
August 31, 201610 yr Author So, it's: black for electric; blue for water; yellow for gas; grey for BT/telecoms. @Onoff Why green for CCTV?
August 31, 201610 yr Green is normal for cable TV here, red for fibre optic and purple for motor way communications. CCTV can go in grey won't make no difference. The important ones are the yellow and black. There the ones that can kill you. Make sure you have them covered with marker tape 250mm above the duct. Have come across water pipes in grey before. Most times waterpipe will just be laid in sand/dust with no duct.
August 31, 201610 yr 9 hours ago, worldwidewebs said: So, it's: black for electric; blue for water; yellow for gas; grey for BT/telecoms. @Onoff Why green for CCTV? Why not? Green: http://www.naylor.co.uk/wp-content/uploads/2012/12/NEWDuctnAccessRevised1703111.pdf Green: http://www.draindepot.co.uk/63mm-x-50m-green-twinwall-cctv-cable-duct.html
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