rules when putting in a new install

Rule of thumb when planning conduits underground in a building.

If you need 1, put in 2.
If you need 1" pipe, put in 2" pipe.
For main runs from FOH to amp or stage location never use anything smaller than 4" .
A pipe filled more than half full is full.

PVC pipe is relatively cheap and the cost difference between 2" and 4" is negligible. It is extremely, significantly (can I make the point even stronger?) cheaper to put pipe in the ground when the building is being built than later.

Always put your pipe the deepest into the ground, save sewer and water.
Never run your pipe within 2 feet of electrical.


Electrical rule of thumb.

Always run your own ground and ground rod.
Spec an isolated ground buss bar in the breaker panel.
Don't forget to use isolated ground receptacles.
Get audio/video on its own isolation transformer.
Make sure that every location that the audio/video system is plugged in is run back to the same box.

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