USE A TRANSFER SWITCH  It must be installed by a qualified electrician or knowledgeable person and must comply with all applicable laws and electrical codes.

TRANSFER SWITCH PROTECTS LINEMAN
The utility line voltage is normally "stepped down" before entering the building, by a transformer. The transformer can work in reverse when voltage is sent through it in the opposite direction and "step up" the voltage. This stepped up voltage, back-feeding through the utility lines, may electrocute workers that come into contact with the utility lines.

A TRANSFER SWITCH PROTECTS THE Camp "Your Home"
Improper connections can allow electrical current from the generator to short circuit with utility line current when power is restored. This can cause a fire in the electrical system.

A TRANSFER SWITCH PROTECTS THE GENERATOR
Improper connections can allow electrical current from the generator to short circuit with utility line current when power is restored. This could cause the generator to explode or burn.