Tri-State Generator Alliance

On the left see the side hill stone pad framed in 4x4's. Note there is nothing exposed. The natural gas pipe and the electric runs are trenched and buried in conduit. Also note we did not use inexpensive direct burial cable. The system is 5' away from any windows and vents. If for some reason you cannot trench and bury the right shows the correct way to run electric and fuel lines along a wall and penetrate the wall. They are secure, safe, and organized. 

On the left. This is what a well organized and safe transfer switch installations look like. This is to code in every way. On the right is a smaller residential Kohler unit. Note the stone pad framed in 4x4's. This is the correct way to build a stone pad preventing shift and promoting good drainage. The machine is level and safe. 

Same job we hoist the generator in place with a crane and place it on the pad. This was a 60kw Kohler Light Commercial System. 

On the Left we cut a driveway so the high voltage, low voltage, and natural gas pipe could be buried. All are in separate conduit and will last a lifetime. The driveway was back filled and re-paved. On the right we constructed a concrete pad that will not move or shift. Notice the conduit for the electric and gas come up through the pad. There will be no exposed wires or pipe. 

  • Always follow the generator manufacturers installation guidelines to protect your equipment warranty. 
  • Generators should never be closer than 5' from a window or vent to a livable space. Generators exhaust carbon monoxide similar to your car.
  • Generators should always be mounted on a pad constructed of either stone or concrete depending upon the size of the machine. It is critical that your generator stay level and secure during operation.
  • Generators require fuel such as natural gas or propane. Make sure your fuel supply lines are sized correctly and your gas meter is capable of supplying enough fuel to the generator.
  • Generator systems should never be placed closer than 5' from a flammable structure unless they have the appropriate fire rating and then they can be no closer than 18" from a flammable structure.
  • Conduit for high and low voltage electric lines that runs from the generator to the transfer switch should be buried in conduit when outside.
  • Low voltage control wires should be a "shielded twisted pair". This will prevent interference and performance problems.
  • Some generator manufactures require high and low voltage wires to be in separate conduit to prevent interference. 
  • Fuel lines should be trenched and buried in conduit whenever possible. 
  • No wires or gas lines should ever be placed along a wall or ceiling without them being anchored. 
  • Any electric runs inside a garage should be in conduit
  • Commercial projects almost always require stamped engineered drawings for permitting. That can initiate changes in the the project design.
  • Concrete pads create an impervious surface and frequently require a building permit and in some cases require an environmental impact study.         


Scroll down for examples of these best practices in action.