10032026_CoHE _V5

Safety training

Control of Hazardous Energies Standard

Publication date: 10 March 2026

Safety training

Control of Hazardous Energies Standard / V5 10032026

CONTENTS

1. LIST OF ABBREVIATIONS .................................................................................................................................4

2. TERMS AND DEFINITIONS...............................................................................................................................5

3. CHANGE LOG ................................................................................................................................................... 7

4. SCOPE ...............................................................................................................................................................9

5. GENERAL REQUIREMENTS OF THE COHE TRAINING STANDARD..............................................................9

5.1 Overview

9 9

5.2 Target Groups

5.3 Aims and Objectives 5.4 Duration of Training

10 10 11 11 12 12

5.5 Validity Period 5.6 Course Codes

5.7 Participant Prerequisites 5.8 Instructor Qualification

6. RESOURCES REQUIRED TO DELIVER COHE MODULES..............................................................................13

6.1 Training Facilities & Equipment

7. USING THIS STANDARD TO DEVELOP TRAINING .......................................................................................13

7.1 Participant Performance Assessment 7.2 CoHE Support Guidance and References

13 16

8. COHE ELECTRICAL SAFETY - INITIAL TRAINING .........................................................................................18

8.1 Aims and Objectives of CoHE Electrical Safety Initial Training

18 18 19 19 19 20

8.2 Duration of CoHE Electrical Safety Initial Training

8.3 Instructor to Participant Ratio for CoHE Electrical Safety Initial Training 8.4 Equipment for CoHE Electrical Safety Initial Training 8.5 Timetable for CoHE Electrical Safety Initial Training 8.6 Detailed Description of CoHE Electrical Safety Initial Training

Lesson 1 - Introduction to the Training.............................................................................................................. 20 Lesson 2 - Responsibilities & role of a Qualified Electrical Person .................................................................... 25 Lesson 3 - Establishing an Electrically Safe Working Condition......................................................................... 27 Lesson 4 - Testing and Isolation as a Qualified Electrical Person ...................................................................... 32 Lesson 5 - Control of hazardous electricity in task-based scenarios .................................................................. 36 Lesson 6 - Training review ................................................................................................................................. 40

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9. COHE ELECTRICAL SAFETY - REFRESHER TRAINING..................................................................................43

9.1 9.2 9.3 9.4 9.5 9.6

Aims and objectives of CoHE Electrical Safety Refresher Training

43 43 44 44 44 45

Duration of CoHE Electrical Safety Refresher Training

Instructor to participant ratio for CoHE Electrical Safety Refresher Training Equipment for CoHE Electrical Safety Refresher Training Timetable for CoHE Electrical Safety Refresher Training Detailed Description of CoHE Electrical Safety Refresher Training

10. COHE PRESSURE FLUID SAFETY - INITIAL TRAINING..................................................................................55

10.1 10.2 10.3 10.4 10.5 10.6

Aims and Objectives of CoHE Pressure Fluid Safety Initial Training

55 55 56 56 56 57

Duration of CoHE Pressure Fluid Safety Initial Training

Instructor to Participant Ratio for CoHE Pressure Fluid Safety Initial Training Equipment for CoHE Pressure Fluid Safety Initial Training Timetable for CoHE Pressure Fluid Safety Initial Training Detailed Description of CoHE Pressure Fluid Safety Initial Training

Lesson 1 - Introduction to the training .............................................................................................................. 57 Lesson 2 - Qualified Pressure Fluids Person Requirements and Role ................................................................63 Lesson 3 - Safe work practices with Pressure Fluids .......................................................................................... 64 Lesson 4 - Response to pressure fluid incidents ................................................................................................ 74 Lesson 5 - Hazardous pressure fluid scenarios .................................................................................................. 76 Lesson 6 - Training Review ................................................................................................................................ 78

11. COHE PRESSURE FLUID SAFETY - REFRESHER TRAINING..........................................................................80

11.1 11.2 11.3 11.4 11.5 11.6

Aims and objectives of CoHE Pressure Fluid Safety Refresher Training Duration of CoHE Pressure Fluid Safety Refresher Training Instructor to Participant Ratio for CoHE Pressure Fluid Safety Refresher Training

80 80 81 81 81 82

Equipment for CoHE Pressure Fluid Safety Refresher Training Timetable for CoHE Pressure Fluid Safety Refresher Training

Detailed description of the CoHE Pressure Fluid Safety Refresher Training

Lesson 1 - Introduction ...................................................................................................................................... 82 Lesson 2 - Hazardous Pressure Fluid Assessment and Learning Activities ........................................................86 Lesson 3 - Training Review ................................................................................................................................ 88 ANNEX 1 - EQUIPMENT LIST ......................................................................................................................................91 ANNEX 2 - COHE SUPPORT GUIDANCE AND REFERENCES ...................................................................................94 ANNEX 3 - TEMPLATE DESCRIPTION FOR A PERMIT TO WORK.............................................................................99 ANNEX 4 - VERSION HISTORY ..................................................................................................................................103

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1. LIST OF ABBREVIATIONS

ANSI

American National Standards Institute

Alternating Current

BTTM / BTTE / BTTH Basic Technical Training Mechanical / Electrical / Hydraulic (see GWO BTT Standard)

CoHE

Control of Hazardous Energies

Direct Current

GWO

Global Wind Organisation

High Voltage

IEC

International Electrotechnical Commission

LOTO

Lockout Tagout

Low Voltage

NFPA

National Fire Protection Association

OSHA

Occupational Safety and Health Administration

PPE

Personal Protective Equipment

SSOW

Safe System of Work

WTG

Wind Turbine Generator

WTSR

Wind Turbine Safety Rules

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2. TERMS AND DEFINITIONS

Term

Definition

Approach boundaries

As part of the risk assessment process for electrical work, approach boundaries should be determined. There are two shock protection boundaries; the Limited Approach Boundary and the Restricted Approach Boundary, that must be established in order to provide a safe distance for personnel from exposed, energized electrical components. For supporting guidance on good working practices on approach boundaries refer Annex 2 Work instruction approved by the company responsible for the work described, according to its internal processes. Normally done with its corresponding risk assessment that will include the control measures for all risks identified. An explosive electrical discharge that occurs when current flows through the air between conductors, releasing intense heat (up to 19,000 °C), light and blast shock wave. This dangerous event can pose significant risks of burns and blast injuries.

Approved work instruction

Arc Flash

Deranged equipment

Equipment that is suspected to be damaged and must be treated with more caution than equipment in its normal condition.

Electrical work

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. Establishing an electrically safe work condition is the mandatory, step-by-step process of de-energizing, locking/tagging out, and verifying the absence of voltage on electrical equipment before work begins to prevent shock and arc flash injuries. It ensures equipment is fully isolated and safe to touch before work starts. For supporting guidance on good working practices on establishing an electrically safe work condition refer Annex 2

Establishing an electrically safe work condition

Exposed electrical parts Electrical components or parts capable of being inadvertently touched or approached nearer than a safe distance by a person, due to not being properly enclosed or insulated (e.g. IP0X, IP1X).

Any energy (electrical, mechanical, hydraulic, pneumatic, chemical, thermal, gravitational force etc.) that could cause injuries to personnel.

Hazardous energy

High Voltage

In this GWO training standard, the term High Voltage is used for voltages normally exceeding low voltage. The exact voltage designation varies globally depending on where you work.

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Use of the term High Voltage:

Terms for low, medium and high voltage may be applied in different ways in different regions and in other working contexts, such as at the electrical distribution and transmission network levels. For example, IEC defines high voltage as a voltage which exceeds 1000 V AC or 1500 V DC., while NFPA 70E and OSHA defines on or above 600V as high voltage working. At the electrical network level, IEC defines high voltage lines as those above 36 kV (36,000 volts), while medium voltage lines are networks with a voltage between 1 and 35 kV (1,000 and 35,000 volts).

Isolation point

A specific, identified device or location on equipment which shall ensure reliable disconnection or separation from an energy source.

Low Voltage

In this GWO training standard, the term low voltage is used to refer to voltages less than those defined as high voltage. The exact voltage designation varies globally depending on where you work.

Use of voltage classifications:

IEC defines LV as voltages normally exceeding 50 V AC or 120 V DC but not exceeding 1000 V AC or 1500 V DC between conductors, or 600 V AC or 900 V DC between conductors and earth. According to the ANSI C84.1-2020: low voltage is between 240 to 600 V and medium voltage is 2.4 to 69kV.

Live known source

Energy source where you know the level of energy (e.g., as part of a circuit, socket, or a hydraulic check/test point).

Minimum arc flash PPE

Suitable PPE is required for all work based on the task risk assessment. In practice the minimum requirement is generally considered to be arc-rated, flame-resistant clothing and protective gear that protects against the heat and burn risks identified in the assessment. For supporting guidance on good working practices on minimum arc flash PPE refer to Annex 2

Pressure fluids

Compressible (e.g., nitrogen) and non-compressible (e.g., hydraulics) fluids under pressure.

Pre-task briefing

Also known as a ‘Job Briefing’ or ‘Toolbox Talk’.

Before starting each job, the person in charge of the job must conduct a briefing with the employees involved. The briefing must cover such subjects as:

hazards related to the job tasks

•

work procedures involved

•

special precautions

•

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energy source controls

•

• personal protective equipment requirements

Safe handling of batteries and capacitors

Safe handling of batteries and capacitors involves adhering to strict safety procedures to prevent electrical shock, chemical burns, fires, and explosions, as both components store and release significant electrical energy. Safe handling requires using appropriate PPE, ensuring devices are de-energized, storing them in cool, dry, and ventilated areas, and disposing of them as hazardous waste For supporting guidance on good working practices on safe handling of batteries and capacitors refer to Annex 3

Test point

Point used to measure energy

Worked example

A worked example is a step-by-step demonstration of how to best perform a task or solve a problem, including a starting point, a desired goal state, and a chosen solution to reach the goal state.

Note Refer to Annex 2 for supporting guidance and references for development of training programmes.

Definitions for roles and responsibilities used within the CoHE Training Standard are detailed in Annex 2 supporting guidance. Training providers should adapt terms where required during training to align to the relevant terminology applicable in their region.

3. CHANGE LOG

Publication Date

Version

02032026

For detailed descriptions of changes, please see the changelog published on GWO’s website here:

CoHE V5 Change Log

CoHE Basic Safety (BaSC) and Basic Safety Refresher (BaSC-R) module removed from CoHE standard.

• CoHE Basic Safety and Basic Safety Refresher module removed leaving two modules within the CoHE standard. References to CoHE Basic Safety / Refresher removed throughout. • Prerequisites updated to reflect CoHE Basic Safety module being republished with a new name as part GWO Basic Technical Training standard.

Combined Initial and Refresher sections within a single standard.

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• Initial and Refresher Training now defined as different training courses available under a single Module - terminology referring to modules updated throughout. Number of sections in the standard simplified and numbering updated throughout.

CoHE Electrical Safety Initial and Refresher Training Module.

• Overall timing for Electrical Safety Initial Training reduced from 10 hours 45 min to 8 hours.

• Initial training content updated to reflect a focus on building on the existing basic training and experience of participants and removing extensive time on basic introductory level content. - Basic content on electrical safe working practices and PPE (previously lessons 3 and 4) replaced by review of participants’ existing experience on these topics, combined with the updated lesson 3. - Basic content on stored energy, batteries and capacitors working practices and PPE (previously lessons 7) replaced by review of participants’ existing experience on these topics, practical element combined with the updated lesson 5.

• Refresher training content updated to reflect a focus on using existing experience of participants.

CoHE Pressure Fluid Safety Initial and Refresher Training Module.

• Overall timing for Pressure Fluids Safety Initial Training reduced from 7 hours to 5 hours and 30 minutes. • Initial training content updated to reflect a focus on building on the existing basic training and experience of participants and removing extensive time used on basic introductory level content. - Basic content on pressure fluids safe working practices and PPE (previously lessons 3 and 4) replaced by review of participants’ existing experience on these topics, combined with updated lesson 3.

• Refresher training content updated to reflect a focus on using existing experience of participants.

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4. SCOPE

Global Wind Organisation is a non-profit body founded by the wind turbine manufacturers and owners. Our members strive for an injury free work environment in the wind turbine industry, setting common international standards for safety training and emergency procedures. Training is verified through GWO’s WINDA database.

Hazardous energies are found in various forms within the wind turbine and the environment of a wind farm, posing a high risk of injury to all workers within the wind industry.

The GWO Control of Hazardous Energies (CoHE) standard has been developed in response to the demand for recognisable CoHE training for the wind industry. It has been prepared in co-operation between the members of GWO based on Safe Systems of Work (SSOW), risk assessments, job roles and tasks relevant to CoHE in the wind industry, as well as factual incident and accident statistics from G+ and the wind industry. The GWO CoHE training standard adopts a generic approach to training for work with highly varied regional, company and site-specific regulations, practices and procedures, with significant differences in equipment and ways of working. This training is recommended by the members of GWO to support and underpin progressing to company specific training. Completion of GWO CoHE training provides and maintains participants foundational knowledge, skills and abilities in the safe control of hazardous energies. The training should be supplemented by company specific SSOW training and training specific to the region, site, turbine and equipment-specific training as required.

It is always the responsibility of the duty holder to determine if a GWO training is sufficient in relation to the tasks, hazards and risks they expose a GWO trained person to, or if additional training is required.

General feedback on this document can be sent to info@globalwindsafety.org. See globalwindsafety.org on how to raise a complaint about a training provider or report a safety incident occurring during training.

5. GENERAL REQUIREMENTS OF THE COHE TRAINING STANDARD

5.1 Overview

The GWO CoHE Training Standard is divided into the following 2 modules:

- CoHE Electrical Safety - Initial and Refresher Training

- CoHE Pressure Fluid Safety - Initial and Refresher Training

5.2 Target Groups

Target Group for the CoHE Electrical Safety Module The training target group includes workers required to perform isolations and testing for the absence of voltage in accordance with existing documentation on low voltage electrical systems, to be able to safely carry out servicing and planned corrective maintenance or specific tasks like component replacement.

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The training target group includes those preparing for a role, such as the responsible Qualified Electrical Person (NFPA 70E), Electrical Skilled Person (EN50110) or Authorised Technician (WTSR), to enable others to work safely on low voltage electrical systems by establishing an electrically safe work condition. Target Group for the CoHE Pressure Fluid Safety Module The training target group includes workers required to perform isolations and testing for the absence of pressure in accordance with existing documentation on pressure fluid systems, to be able to safely carry out servicing and planned corrective maintenance or specific tasks like component replacement.

The training target group includes those preparing for a role, such as the responsible Qualified Pressure Fluids Person, to enable others to work safely on pressure fluid systems by establishing a safe work condition.

5.3 Aims and Objectives The GWO CoHE training aims to enable participants to manage and control the risks related to hazardous energies in the wind industry and to safely control work when in the vicinity of hazardous energies or when working on systems and equipment containing hazardous energies.

The objectives of the CoHE Electrical Safety and Pressure Fluid Safety modules improve and refresh participants´ ability to work safely, to manage and control the risks of electricity and fluids under pressure.

GWO CoHE training is not aimed at improving technical capabilities regarding electricity or pressure fluid systems or the acquisition of advanced knowledge, such as troubleshooting. Before attending training, participants should already possess technical knowledge, skills, and abilities in electricity or pressure fluid systems.

Note

CoHE Electrical Safety training does not prepare participants to manage or control the risks related to operating high voltage electrical systems or hazardous energies from HV systems.

Note

5.4 Duration of Training The total contact time for completing each course as standalone training within the CoHE modules is given in the course timetables and summarised in the table below. The training provider must not exceed the maximum contact time and training day durations as given below.

Module - Course

Duration

CoHE Electrical Safety - Initial Training

8 hours

CoHE Electrical Safety - Refresher Training

4 hours

5 hours 30 mins

CoHE Pressure Fluid Safety - Initial Training

CoHE Pressure Fluid Safety - Refresher Training

2 hours 20 minutes

Table 5.4.1 – Duration of CoHE Training

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Maximum Duration Per Day

Contact time

8 hours

Total training day

10 hours

Table 5.4.2 – Maximum durations for training days

Contact time includes delivery of course lesson content, practical exercises and activities directly related to these.

Note

The total training day includes contact time, meals and breaks and travel between training sites (where applicable).

5.5 Validity Period GWO CoHE Module training records are valid for the periods stated in the table below and training records shall be renewed before the end of a given validity period. The GWO Requirements for Training detail how validity periods are applied when records of training are uploaded into WINDA.

Module - Course

Training Record Validity (Months)

CoHE Electrical Safety - Initial Training

CoHE Electrical Safety - Refresher Training

CoHE Pressure Fluid Safety - Initial Training

CoHE Pressure Fluid Safety - Refresher Training

Table 5.5.1 – GWO CoHE validity periods

5.6 Course Codes

Module - Course

Course Code

CoHE Electrical Safety - Initial Training

CoHE Electrical Safety - Refresher Training

ES-R

PFS

CoHE Pressure Fluid Safety - Initial Training

CoHE Pressure Fluid Safety - Refresher Training

PFS-R

Table 5.6.1 – GWO CoHE Module course codes

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5.7 Participant Prerequisites All participants must meet the participant prerequisites described in the GWO Requirements for Training, as well as those detailed below for each training. Training providers may apply additional prerequisites as necessary to comply with an employing company policy and any local regulatory compliance requirement. Participant Prerequisites for CoHE Electrical Safety - Initial Training Before attending CoHE Electrical Safety Initial Training participants must have completed GWO BTT Electrical (BTTE) training and must have completed GWO BTT Hazardous Energy Basic Safety (HEBS) training (or equivalent electrical LOTO awareness training). This training is intended for persons who have relevant experience working with electricity while supervised by a Qualified Person. It is strongly recommended that participants have experience working in a team led by a Qualified Person who performed pre-task briefings, isolations, and testing, created a safe work condition for others to work under and supervised work parties. Participant Prerequisites for CoHE Electrical Safety – Refresher Training To attend CoHE Electrical Safety Refresher Training, the participants shall possess a valid WINDA training record for CoHE Electrical Safety Initial or Refresher training. Participant Prerequisites for CoHE Pressure Fluid Safety - Initial Training Before attending CoHE Pressure Fluid Safety Initial Training participants must have completed GWO BTT Hydraulics (BTTH) training and must have completed GWO BTT Hazardous Energy Basic Safety (HEBS) training (or equivalent pressure fluids LOTO awareness training). This training is intended for persons who have relevant experience working with pressure fluids while supervised by a Qualified Person. It is strongly recommended that participants have experience working in a team led by a Qualified Person who performed pre-task briefings, isolations, and testing, created a safe work condition for others to work under and supervised work parties. Participant Prerequisites for CoHE Pressure Fluid Safety - Refresher Training To attend CoHE Pressure Fluid Safety Refresher Training, the participants shall possess a valid WINDA training record for CoHE Pressure Fluid Safety Initial or Refresher training .

For any prerequisite above which requires having completed GWO BTT Hazardous Energy Basic Safety (HEBS), CoHE Basic Safety (BaSC) or Refresher BaSC-R) is an acceptable equivalent if the training record is valid.

Note

5.8 Instructor Qualification

A competent GWO CoHE instructor must adhere to the instructor requirements within the GWO Requirements for Training.

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6. RESOURCES REQUIRED TO DELIVER COHE MODULES

The training provider shall ensure that staff, facilities, and equipment are in place to support the training of participants as per the GWO Requirements for Training.

6.1 Training Facilities & Equipment

All training facilities shall fulfil the requirements detailed in the GWO Requirements for Training.

The equipment required for CoHE modules must be available as listed in Annex 1 and must fulfil national, legal requirements of the country where the training is taking place.

7. USING THIS STANDARD TO DEVELOP TRAINING

If you have questions about this standard you can access support and read answers to FAQs in the: GWO Help Centre.

Note

The training in this standard is designed around the GWO taxonomy described in the GWO Requirements for Training. Theoretical and practical activities must be delivered according to the defined taxonomic level to reach the described learning objectives. When teaching about equipment, a generic approach shall be applied. It is intended that completing this GWO training should allow for product specific familiarisation within the workplace and minimise the need for additional formal product specific training. However, adherence to national or regional legislation, company gap analysis and location specific risk assessments, may require additional formal product specific training, which is the responsibility of the duty holder.

In addition to this, all training based on this standard including all related resources shall, as a minimum, meet the requirements described in the GWO Requirements for Training.

7.1 Participant Performance Assessment

If a participant fails to meet the demands of a GWO CoHE training course, they shall attend a new training.

The assessment records must be maintained using the Participant Performance Assessment Form as per the GWO Requirements for Training.

Assessment Activities during CoHE Refresher Training Learning activities for CoHE Refresher Training should start with challenging assessment scenarios designed around the learning objectives, which require participants to make decisions and take actions as would realistically be required on the job, in a range of scenarios from very simple to very complex (e.g. “demonstrate how to establish a safe working condition in this scenario”).

This will allow the instructor to assess each participants ability to meet the learning objectives related to establishing a safe working condition in multiple situations from a WTG environment.

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By assessing each participant, it will be possible for the instructor to provide focused and specific learning activities for participants who show a gap between their capabilities and the learning objectives.

Focused and specific learning activities to improve participants performance and should be facilitated for participants within the allocated course timings until they have closed the gap and reached the learning objectives of the CoHE Refresher Training. Once participants are assessed by the instructor to have achieved the learning objectives of the CoHE Refresher Training Standard, the refresher training can be completed without requiring those participants to spend more time on additional training. Through this design, the refresher trainings will spend the minimum amount of time training participants in tasks they can already perform safely and correctly, focus on practical application as opposed to information, and ensure participants are more active and less passive. Create assessment activity scenarios that reflect the working conditions they would face in a WTG and are increasingly challenging for participants, which require participants to make decisions and take actions as needed to reach the learning objectives. - Within each assessment activity, it would be beneficial for participants to have the possibility of failing by making improper decisions and actions (under safe conditions, simulating up to catastrophic failure). To prepare CoHE Refresher Training: 1. 2. Identify the minimum information that participants need to know and be provided with to complete the activities. Prepare additional supporting information and guidance resources to be made available as reference to support the activities. 3. Prepare specific, focused learning activities, such as worked examples. In the case a participant shows a gap between the abilities and the desired learning objectives of the CoHE Refresher Training these should be used to provide practice opportunities.

Examples of the learning activities could be worked examples demonstrated by the instructor followed by guided and independent practice activities with feedback for the participants.

By focusing on critical aspects of the task, key steps and the solution, and including only the minimum information needed to understand the solution, they can manage the stress and pressure for participants.

It is important to limit adding extra content or ‘nice to know’ information which can overload participants, making it more difficult for them to understand critical aspects of the task.

During CoHE Refresher Training: 1. Facilitate increasingly challenging and realistic assessment activity scenarios for the participants: a. If a participant makes all the correct decisions and take all the right actions regarding which safe working practices to use and decides on all the right and realistic actions without any guidance or support, they should be able to complete refresher training in the allocated time or less

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b. Participants failing an activity should be sent back to the start of the activity to try again for reinforcement of learning and practice until they reach the learning objectives, within the limits of the prescribed training duration.

c. Information and guidance should always be available as a resource, so if a participant needs or is interested in learning more, they can pull from the reference material available to them.

2. Once participants make their decision and act, consider showing the necessary information in the feedback while first showing the consequence of their choices and actions (e.g. what would happen if the participant failed to identify and avoid a safety hazard). Then show the information that the participant should have used, thought about, or looked at. 3. If a participant does not demonstrate the needed abilities, makes mistakes or needs guidance to correctly complete an activity, they should be provided with specific and focused learning activities to improve their performance until the reach learning objectives, within the limits of the prescribed training duration. 4. Individual focused and specific additional learning activities should be provided to participants until they have reached the learning objectives of the CoHE Refresher Standard. - This could be worked examples demonstrated by the instructor followed by guided and independent practice for participants to enable them to improve to reach the learning objectives. - If additional individual learning activities are required, additional contact time should be allocated as necessary. - Within each assessment activity, it would be beneficial for participants to have the possibility of failing by making improper decisions and actions (under safe conditions, simulating up to catastrophic failure).

5. Repeat within the limits of the prescribed training duration until all objectives are achieved.

d. Some allowance of additional time beyond the prescribed training duration is acceptable at the discretion of the training provider

If a participant fails to meet the demands of the refresher training and reach all learning objectives they must attend a new training.

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The flow of COHE refresher assessment activities should look like this:

7.2 CoHE Support Guidance and References

The annex sections of this standard provide resources to support providers in developing training from the CoHE standard.

Annex 2 contains the following: 1.

Guidance on Safe Working Practices with Hazardous Energies

This guidance illustrates and explains technical concepts and safe working practice relevant to the training.

Roles and Responsibilities for Control of Hazardous Energies

This list provides and explains specific CoHE Role and Responsibilities relevant to the training.

Alignment References

This list references relevant standards and norms used to create the GWO CoHE Training Standard, which are also relevant to delivery of BTT Hazardous Energies Basic Safety Module

Annex 3 contains the following: 1.

Template Description for a Permit to Work

This includes a template which must be developed by the training provider into a permit to work for use during CoHE training. It details the required elements in a permit to work and some text as a suggestion of what should be included in each section.

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CoHE Electrical Safety Module

Electrical Safety - Initial Training (ES) Electrical Safety - Refresher Training (ES-R)

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8. COHE ELECTRICAL SAFETY - INITIAL TRAINING

8.1 Aims and Objectives of CoHE Electrical Safety Initial Training The aim of the GWO CoHE Electrical Safety Initial Training is to enable the participants to manage and control the risks related to hazardous electrical energies in the wind industry and to safely control work when in the vicinity of hazardous electrical energies or when working on systems and equipment containing hazardous electrical energies. This training prepares participants to act safely, support and care for themselves and others, while working on low voltage electrical systems in the wind industry and to perform assigned electrical work tasks safely and efficiently in the role of a Qualified Person.

The training is not aimed at improving technical capabilities regarding electricity or pressure fluid systems or the acquisition of advanced knowledge, such as troubleshooting. Before attending CoHE training participants should already possess technical knowledge, skills, and abilities in electrical or pressure fluid systems.

Note

Overall learning objectives for CoHE Electrical Safety Initial Training, the participants will have the ability to:

1) Take responsibility for their own and others safety while working with, and in the vicinity of, electricity in the wind industry (Ability, intermediate level)

2) Take responsibility for correctly completing a simple permit to work from beginning to end as the person responsible for establishing a safe work condition (Ability, intermediate level)

8.2 Duration of CoHE Electrical Safety Initial Training

The total contact time for completing this training is 8 hours. This is based on the times given in the course timetable. The training provider must not exceed the times per day given in table below.

Maximum Duration Per Day

Contact time

8 hours

Total training day

10 hours

Table 8.2.1 – Maximum durations for training day

Contact time includes delivery of course lesson contents, practical exercises and activities directly related to these.

Note

The total training day includes contact time, meals and breaks and travel between training sites (where applicable)

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8.3 Instructor to Participant Ratio for CoHE Electrical Safety Initial Training The ratio shown for theory sessions indicates the maximum number of participants allowed to attend the course. Practical ratios indicate the maximum number of participants to be supervised at any time by an instructor during each practical activity.

Module - Course

Session

Instructor-Participant ratio

Theory

1:12

CoHE Electrical Safety - Initial Training

Practical

1:6

Table 8.3.1 – GWO CoHE Electrical Safety Initial Training instructor to participant ratio

8.4 Equipment for CoHE Electrical Safety Initial Training The equipment required for training must be available as listed in Annex 1 and must fulfil national, legal requirements of the country where the training is taking place and meet the criteria defined in the GWO Requirements for Training. 8.5 Timetable for CoHE Electrical Safety Initial Training The order that lessons and elements are delivered may be varied according to the lesson plans prepared by the training provider. The delivery of this training must comply with the requirements described in the GWO Requirements for Training.

Lesson

Element

Duration

1. Introduction to the training

1.1 Safety instructions and emergency procedures 1.2 Facilities 1.3 Introduction 1.4 Aim and objectives 1.5 Ongoing assessments 1.6 Motivation 1.7 Human factors TOTAL 2.1 Responsibilities and role of a Qualified Electrical Person

20 min.

2. Responsibilities and role of a Qualified Electrical Person

TOTAL

30 min.

3. Establishing an

3.1 Electrical safe working practices & PPE 3.2 Treating all electrical equipment as live until an electrically safe work condition has been established

electrically safe working condition

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3.3 When to establish an electrically safe work condition 3.4 How to establish an electrically safe work condition TOTAL 4.1 Electrical measurement equipment 4.2 3-point test method to prove the absence of voltage 4.3 Isolation of electrical equipment TOTAL 5.1 Hazardous electrical safety scenarios 5.2 Safe handling of Stored Energy: batteries and capacitors TOTAL

100 min.

4. Testing and Isolation as a Qualified Electrical Person

110 min.

5. Control of hazardous electricity in task-based scenarios

210 min

6. Training review

6.1 Training review 6.2 Feedback session TOTAL

10 min.

GRAND TOTAL

480 min.

Table 8.5.1 – GWO Electrical Safety Initial Training timetable

8.6 Detailed Description of CoHE Electrical Safety Initial Training

The administrative part of the registration should be carried out before the training begins.

Note

LESSON 1 - INTRODUCTION TO THE TRAINING

20 min.

The aim of this lesson is for the participants to be motivated to safely engage in GWO CoHE Electrical Safety Initial Training at a training facility, while recognising what is expected of them during the training.

After successfully completing this lesson, the participants can:

1) Recognise the course content and the facilities involved to ensure a clear understanding of what is expected during the training (Knowledge, basic level)

2) Name and point out local emergency procedures and facilities (Knowledge, basic level)

3) Discuss the relevant human factors, and explain the implications of these (Knowledge, intermediate level)

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ELEMENT 1.1 - SAFETY INSTRUCTIONS AND EMERGENCY PROCEDURES

Learning objective:

4) The participants can show interest in the safety and emergency procedures (Ability, basic level)

The instructor shall:

Explain and ask open ended questions concerning:

a. safety instructions according to internal procedures

b. emergency procedures and emergency exit in the areas where the participants can be expected to be located during the course:

The participants shall:

Engage in answering the above questions

ELEMENT 1.2 - FACILITIES

Learning objective:

5) The participants can recognise the facilities at the training location (Knowledge, basic level)

The instructor shall:

Present a general description of the facilities at the location (administration, dining area, restrooms, and toilets etc)

Alternative activity: lead a tour and point out facilities

The participants shall:

Note relevant facilities and ask questions when in doubt about facilities

ELEMENT 1.3 - INTRODUCTION

Learning objective:

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6) The participants can show interest in fellow participants and the Electrical Safety Initial Training (Ability, basic level)

The instructor shall:

Explain and ask involving question about the programme of the CoHE Electrical Safety Initial Training, including breaks and mealtimes

Give a short introduction about themselves, including their backgrounds as instructors

Ask for participants’ expectations of the training and their learning training

The participants shall:

Give a short introduction of themselves, including their job function, and share their expectations of the training and learning outcome expectation for the training

ELEMENT 1.4 - AIM AND OBJECTIVES

Learning objective:

7) The participants can recognise the scope and main objectives of the CoHE Electrical Safety Initial Training (Knowledge, basic level)

The instructor shall:

Present the scope and main objectives of the CoHE Electrical Safety Initial Training through a challenge, story, scenario or message “your goal with this training, should you choose to accept is…”

A suggested learning activity could be to share stories, present scenarios or personal experiences that show the importance of being able to support and care for themselves and others while working with and in the vicinity of electricity in the wind industry and to perform assigned tasks safely and efficiently. (shows what is in it for the participants) Where possible avoid using "learning objectives PowerPoint slides”. Instead use stories, examples or personal experiences that shows the importance of being able to support and care for oneself and others while: working with, and in the vicinity of, electricity in the wind industry; performing assigned tasks safely and efficiently; and the importance of the CoHE Electrical Safety Initial Training

Note

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For incident lessons and safety information shared by global energy companies, as inspiration in scenario development, please visit - https://toolbox.energyinst.org/

Note

Involve participants through questions about the participants’ understanding and individual experiences relevant to the CoHE Electrical Safety Initial Training

The participants shall:

Engage in answering questions, and share experiences relevant to the CoHE Electrical Safety Initial Training

ELEMENT 1.5 - ONGOING ASSESSMENT

Learning objective:

8) The participants can recognise the assessment procedure and the aim of ongoing assessment (Knowledge, basic level)

The instructor shall:

Explain the reasons for the on-going assessment

Explain the GWO participant assessment form and how it will be used

Ask for the participants’ thoughts on the assessment procedure presented:

The participants shall:

Engage in discussions on the assessment procedure and ask questions when in doubt in relation to the assessment procedure

ELEMENT 1.6 - MOTIVATION

Learning objective:

9) The participants can show interest in engaging in the learning activities (Ability, basic level)

The instructor shall:

Explain and facilitate discussion on:

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a. The importance of personal involvement in the course

b. The need for the CoHE Electrical Safety Initial Training when working in the wind industry

The participants shall:

Engage themselves in discussion about the importance of personal involvement in the course and the need for the CoHE Electrical Safety Initial Training when working in the wind industry

ELEMENT 1.7 - HUMAN FACTORS

The aim of the element is to draw the participants’ attention to how human performance and taking responsibility influences a safe work environment, and to prepare for the continued focus on human factors during practical training and exercises.

Learning objectives:

10) The participants can discuss the relevant human factors and the implications of these (Knowledge, intermediate level)

11) The participants can show interest in considering human factors during the practical exercises (Ability, basic level)

12) The participants can take initiative from lessons of past incidents to improve safe work practices (Ability, intermediate level)

Throughout this training in all lessons the instructor should ensure a holistic integration of human factors where relevant.

Note

For incident lessons and safety information shared by global energy companies, as inspiration in scenario development, please visit - https://toolbox.energyinst.org/

The instructor shall:

Facilitate an open and honest discussion on workplace safety and personal responsibility, linked to stories about the impact on individuals who decided to "have a go" as opposed to working within the SSOW. Key points to challenge participants on:

a. Why do they think we need a safe system of work?

b. Is the SSOW in place to safeguard teams, demonstrate compliance or satisfy customer expectation? Is it there to protect you and what you provide for your loved ones?

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