Multiple conduits from house to garage (gas, electric, low voltage) : is there a separation rule?
I am pouring my frost walls tomorrow (London, Ontario), and I will be adding an 8″ sleeve 3′ down in both walls so I can run (3) separate 2.5″ conduits from the house to the garage (about 20′ between house and garage). Things I may be running through the conduits:
1 Natural gas
2 Electrical (to feed a 100 amp garage panel)
3 3/4″ cold water pex line (to feed garage taps and utility sinks)
4 1/2″ pex hot water line (to feed the utility sink)
5 (2) 1/2″ pex lines (supply and return) to supply the in slab heat from the main water heater
6 Low voltage lines (Cat5e, RG-6U)
As you can see, it can get crowded in there pretty quick. My main concern is will they allow me to run electrical and natural gas in the same 8″ sleeve (different conduits)? Is there a separation rule even when they are in different conduits? In walls low voltage stuff is usually 6″ away from high voltage wires, will that be an issue? I know they won’t let me run electrical and gas in the same conduit, but what about gas and low voltage (ethernet, cable)? Gas and water/radiant heat pipes? Looking for acceptablee combinations in the same 2.5″ conduit. I will run out of space quickly, especially if I want to insulate the hot water and radiant feed lines.
Any advice on the grade/thickness/certification for the 2.5″ conduit? Mostly concerned about the main electrical line.
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