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BICC or BS7671 comply for design

Anthony Sullivan
Hello IET guys 


I have a problem where a cable installed on site doesn't comply to Bs7671 current  carrying capacity for underground cable reference method D 


the engineer who design the cable used amtech and data from bicc with reference method 110. 


Dose bicc comply? As its old data for cables install in any country from what I can see. I would have thought bs7671 design must be used? 

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    BS6761 was never used as the last word for big installations that have a lot of buried cable, e.g. power stations, (apart from the "domestic" side of things). The CEGB had their own methods and ratings often based on different assumptions but equally well researched. As the BS is based on the manufacturers data - with one set of assumptions as to installation method -, using the manufacturers figures should give you more accurate figures if the BS assumptions are not relevant in your case.

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  • 0
    BS6761 was never used as the last word for big installations that have a lot of buried cable, e.g. power stations, (apart from the "domestic" side of things). The CEGB had their own methods and ratings often based on different assumptions but equally well researched. As the BS is based on the manufacturers data - with one set of assumptions as to installation method -, using the manufacturers figures should give you more accurate figures if the BS assumptions are not relevant in your case.

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