atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Cabling Telephones Systems Wiring Structured Cabling: NEC section regarding distance between supports?

I know you weren't asking about residential electical, I just stated that is the only place in the NEC that states the distance on a horizontal run. The NEC doesn't specifiy spacing of low voltage wiring. I'm sure BICSI does, but I wouldn't know what it is. I've always gone by 42", but that's from the Bell days.