Mobile Crane Operator Training – What Is Electrical Grounding?

Mobile crane operator training is quite indepth and covers a range of topics. These topics include various safety aspects along with various operating requirements. Electrical grounding has actually got two definitions when it comes to mobile crane operations.

The first is, as the name suggests, a technique to ground the crane in case of electrical contact. One of the hazards of operating any type of crane, but mobile cranes in particular, is the risk of coming into contact with overhead power cables. This contact can have a life threatening impact on the operator and those around them.

By utilizing an electrical grounding system the harm from any contact can be minimized. When a crane comes into contact with overhead power cables, electricity flows from the cable into the crane. This passes through the operator as well as anyone who happens to be touching attached to the crane in any way, either through direct contact with the crane itself or through any wiring such as a communication system. Grounding directs the current to the ground bypassing the operator.

The second form off electrical grounding is a system that grounds the crane in the real sense. It is a stabilizing system that ensure the crane is balanced on uneven ground. Mobile cranes have a series of ‘feet’ that are lowered to the ground in much the same way we use car jacks to raise a cars wheel off the ground.

An electrical grounding system lowers these feet sufficiently to ensure the crane is sitting firmly and is well balanced – and important safety aspect when it comes to lifting heavy weights. The next time you see a mobile crane in use, have a look to see whether or not the crane has been balanced using an electrical grounding system. As I mentioned at the start, mobile crane operator training covers a lot of topics – electrical grounding is just one of them.