Most people immediately think of electricity as a potentially hazardous energy source. There are other sources of energy, though, that can be just as hazardous. These energy sources include thermal, chemical, pneumatic, hydraulic, mechanical, and gravity, It is important to remember that all sources of energy that have the potential to un unexpectedly start-up, energize, or release must be identified and locked, blocked, or released before servicing or maintenance is performed. Specific steps for shutting down, isolating, and blocking machinery and equipment in order to control hazardous energy. A detailed training program for employees who perform the service and maintenance and for employees who are indirectly affected by those operations.
Locks are to be utilized whenever possible.
Both locks and tags must clearly indicate the identity of the employee who applied the device. This provides positive identification as to who is servicing the machinery and equipment. The locks and tags must be durable enough to withstand the environment in which they will be used. Information on the locks and tags must remain legible, Locks must be substantial enough to prevent removal without the use of excessive force. Tags must be substantial enough to prevent accidental or inadvertent removal.