OSHA Definition
Per OSHA 1910.147(b), an energy source is any source of electrical, mechanical, hydraulic, pneumatic, chemical, thermal, or other energy.
Common Energy Types
- Electrical: Power supply circuits, batteries, capacitors
- Mechanical: Rotating parts, springs, elevated components
- Hydraulic: Pressurized fluid systems, accumulators
- Pneumatic: Compressed air/gas systems, pressurized vessels
- Chemical: Reactive substances, process chemicals
- Thermal: Steam systems, heated surfaces, cryogenic systems
- Gravity: Elevated loads, suspended components
Stored and Residual Energy
Even after an energy source is isolated, stored or residual energy may remain. Per 1910.147(d)(5), all stored or residual energy must be relieved, disconnected, restrained, and otherwise rendered safe. If reaccumulation is possible, verification must continue until servicing is complete.
In LOTOBuilder
LOTOBuilder provides a pre-configured energy type library (electrical, mechanical, hydraulic, pneumatic, chemical, thermal, gravity) with the ability to add custom energy sources specific to your facility.
