Patent ID: 7212391
Filing Date: 2007-05-01
Classification: B23Q

Abstract:
1. A system for coupling a load to a ground, the system comprising: a first power contact that determines whether a first power line is coupled to a first terminal of the load; a first grounding contact that determines whether the first terminal of the load is coupled to the ground; a first sensing device coupled to the first terminal; and a control device in communication with the first power and grounding contacts and the first sensing device; wherein, upon a first signal being provided to the control device, the control device causes the first power contact to decouple the first terminal from the first power line isolating the load from the first power line; and wherein, upon the first sensing device determining that a first condition selected to indicate that grounding of the load will not damage the load has been met with respect to at least the first terminal, the control device causes the first grounding contact to couple the first terminal with the ground.