Is it permissible to attach a snap hook back onto its own lanyard?

It is not permissible to attach a snap hook back onto its own lanyard because this practice poses significant safety risks. When a snap hook is attached to its own lanyard, it creates a potential for a failure in the system. The snap hook could become disengaged or create a situation known as "rollout," where the hook can unintentionally unclip due to the angle of tension or the forces being applied during a fall.

Safety standards and regulations are in place to prevent such dangerous configurations in personal fall arrest systems. Proper use of equipment requires attaching snap hooks to solid anchorage points, other connectors, or equipment specifically designed for that purpose, which ensures a secure connection and minimizes the risk of accidents. Understanding and adhering to these guidelines is crucial for maintaining safety in electrical work and other similar environments.