Generation plants generally have higher risks than most other facilities. Station service is generally 480 volts and sometimes 4,160 volts with a high arc flash level; generation is generally 4,160 to 17,000 volts, usually with extreme arc flash levels while running. There are complexities in the electrical configurations, making lockout/tagout requirements stringent and complex when mixing with clearance requirements at the step-up transformer in the yard.

This course will cover hazards faced by line-clearance tree trimmers and be supported through case studies and an explanation of minimum OSHA training requirements. We will also discuss the three-cut method to effectively clear a power line.