Energy Isolation standard

Energy Isolation standard

Aug 06, 2020

Energy Isolation standard - Lafarge Health and Safety Operating Standard

1. The standard sets minimum occupational health and safety requirements for group control of hazardous energy sources related to machinery, equipment and process systems.

2. This Standard establishes a general and systematic method for eliminating the risk of accidents that may result from the accidental recovery, start-up, or release of hazardous energy during operations on machinery, equipment, or process systems.

Scope of application

This standard is a group mandatory standard and applies to all areas of Lafarge's business and joint ventures in which Lafarge is a controlling shareholder or management party. This standard applies to all individuals (i.e., employees, contractors, carriers, suppliers, and visitors), sites, construction projects, and offices.

Power source:

Power, mechanical energy, water pressure, air pressure, chemical energy, heat or other energy that may cause injury to a person.

Dangerous energy:

Any energy that could cause injury to persons or damage to property if accidentally released.

Zero energy state:

Refers to the mechanical, equipment and dangerous energy source completely separated, and the residual energy has dissipated or restricted state.

Residual (or stored) energy:

This means that the energy of a machine (e.g. compressed air in a tank) is retained after it is turned off.


Means a certain work activity, including but not limited to: erection, installation, construction, commissioning, repair, adjustment, inspection, dredge, assembly, troubleshooting, testing, cleaning, dismantling, abolishing, repair, maintenance or other similar work related to machinery, equipment and production process.