ok. thanx it would be easier to have 1 cable with its earth wire to be in same duct taking into consideration future change of cables when needed.
thanx im satisfy
well thanx itsmoked for reply... im leading a project for infrastructural work and we are dealing with ducting upvc system and in our project specification we should use 100mm upvc duct.there are no bends ,ducts go straight along the raceway(under road crossing) and extend 0.5-1 meter a side...
i would like to have an answer to my question.... i got duct with a size of 100mm and would like to know that how many cables of 4 core 16mm and 4 core 35mm can go thro this duct and what is the spacing shall i keep inside this upvc duct knowing that this ducts is under-raceway
thanx
yosefar