Safety training
Control of Hazardous Energies Refresher / V3 2023-12-04
1. LIST OF ABBREVIATIONS
CoHE
Control of hazardous energy
GWO
Global Wind Organisation
PPE
Personal protective equipment
WTG
Wind turbine generator
2. TERMS AND DEFINITIONS
Term
Definition
Approach boundaries
Limited Approach Boundary
Is the closest distance that an Ordinary Electrical Person can approach exposed energised conductors without escort. An Ordinary Electrical Person may be escorted within the Limited Approach Boundary by a Qualified Electrical Person but may never enter the Restricted Approach Boundary. All persons in the Limited Approach Boundary must wear the minimum PPE for electrical work. All tools that enter the Limited Approach Boundary must be insulated for the equipment’s voltage.
Restricted Approach Boundary
The Restricted Approach Boundary may only be entered by a Qualified Electrical Person. All parts of the Qualified Electrical Person that enter the Restricted Approach Boundary must be insulated from the equipment’s voltage. An Energised Electrical Work Permit is required to enter the Restricted Approach Boundary, unless performing switching or taking measurements.
Work Instruction approved by the company responsible for the work described, according to its internal processes.
Approved work instruction
Normally done with its corresponding Risk Assessment that will include the control measures for all risks identified.
Electrical work (definition and examples)
Any task performed on an electrical installation that requires specific electrical knowledge to be performed safely and correctly.
Examples: Install components, alter a circuit, take electrical measurements, replace a component, create an electrically safe work condition.
Global Wind Organisation ©2023 / www.globalwindsafety.org
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