unistrut spacing

[bradcc]

where does it say anything about different spacing of cables for strut,like say you have teck running on it of different sizes?

[bradcc]

thanks thats it

[CRM]

Rule 12-618 covers the support of cable which then directs you to rule 12-510, which says the maximum distance between supports is 1.5 meters, it doesn't matter what size the cable is. However with conduit it's different, if you have different sizes of conduit on unistrut, you must space your strut using the rules for the smallest size of conduit you are using.