GWO Safety Control of Hazardous Energies (CoHE) Combined
Duration: 3 days (classroom-based training only)
The CoHE – Control of Hazardous Energies standard is the official GWO course for the prevention of risks in maintenance tasks of electrical and hydraulic systems in a wind turbine.
The CoHE is focused on workers in the wind sector who have to perform activities in the environment of a wind turbine, especially if they have to work with electrical or hydraulic systems, whether in onshore or offshore wind farms.
The GWO CoHE Training standard is divided into the following 3 modules:
Prerequisites for the GWO CoHE Training Standard
Training and experience prerequisites
There are prerequisites to attend the Electrical Safety and Pressure Fluid Safety modules.
The participants must have completed the CoHE Basic Safety and the BTT Electrical module before
attending the Electrical Safety Module.
It is strongly recommended that before attending the Electrical Safety Module participants have some applicable working experience with electricity supervised by a Qualified Person. This means that the participants should have experience working in a team lead by a Qualified Person, who performed pre-task briefings, isolations, and testing, created a safe work condition for others to work under, lead and supervised work parties.
Similarly, the participants must have completed the CoHE Basic Safety Module and the BTT Hydraulic
module before attending the Pressure Fluid Safety Module. It is strongly recommended that before
attending the Pressure Fluid Safety Module participants have some applicable working experience with
pressure fluids supervised by a Qualified Person. This means that the participants should have experience
working in a team lead by a Qualified Person, who performed pre-task briefings, isolations, and testing,
created a safe work condition for others to work under, lead and supervise work parties.
There are no training prerequisites for the CoHE Basic Safety module.
Target Group
The CoHE training package is designed for personnel working in the wind industry who are, or will be, exposed to hazardous energies during their work. It is particularly relevant for technicians and specialists responsible for the safe isolation of mechanical, electrical, and pressure fluid systems.
This course is suitable for:
Technicians and service personnel working on wind turbines or related installations
Candidates performing isolations and testing for the absence of voltage or pressure
Workers responsible for creating a safe working environment for others (e.g. Qualified or Authorised Persons)
Personnel with duties including component replacement, servicing, and corrective maintenance on systems containing hazardous energies
Note:
The Electrical and Pressure Fluid Safety modules do not aim to teach technical troubleshooting or system-specific skills. Participants are expected to already possess relevant technical competencies before attending. The goal is to improve their ability to work safely with and around hazardous energies, not to build foundational trade skills.
Validity Period
Certificate is valid for 24 months
Must be renewed before expiry to remain valid
Renewal is registered in WINDA and can be done up to 2 months in advance