Stay Grounded, Stay Alive: The Critical Role of Proper Grounding in Crane Safety

Ensuring proper grounding for cranes is not just a technical necessity—it's a matter of life and death.

Do You Have a Fourth Ground Bar? Here's Why You Need One

When an overhead crane isn't grounded, the operator is at serious risk of electrocution, a leading cause of workplace fatalities. Understanding and complying with grounding regulations can prevent these tragedies.

Many crane operators and owners are unaware that their systems must have a fourth ground bar. Most conductor bar manufacturers offer options for a dedicated green ground bar. Electrical and wiring violations are a frequent issue in industries, ranking sixth on OSHA's list of the most common infractions. Of these, improper grounding is the most prevalent.


Many people rely on what they think is a “grandfather clause,” believing they are exempt from updating their equipment. However, this clause only applies if no repairs or upgrades are made.

The moment a power bar needs repair, a ground bar must be installed to meet current standards. So, what is required Misunderstanding or misapplying these regulations is common, with many operators believing they are compliant when they are not.

The Myths and Misconceptions About Grounding

Some crane owners believe that unpainted bridge beams, which allow for contact between the crane’s wheel and the beam, are sufficient for grounding. While this can provide some grounding, it is far from reliable. Factors like dirty rails, worn bearings, or corrosion can severely compromise this method.

Leaving the beam unpainted as a grounding strategy is not an approved solution. A continuous and permanent ground bar is the only way to ensure full compliance and safety.

Advice for Crane Owners

If you’re a crane owner, plan ahead. Budget for a ground bar installation to avoid costly fixes down the road including damage to sensitive electrical equipment like variable frequency drives. Be sure to size the ground bar to match phase rails, select a reputable service company that prioritizes safety, hires knowledgeable technicians, and is fully compliant with regulations.


By ensuring your cranes are properly grounded, you're not only complying with the law—you’re protecting lives.
IPandC Logo