Basic Technical Training (BTT)
V6.0
Publication date: 1 April 2021
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1 LIST OF ABBREVIATIONS ............................................................................................................................................. 5
2 TERMS AND DEFINITIONS ........................................................................................................................................... 6
3 CHANGE LOG – VERSION 6.......................................................................................................................................... 7
4 SCOPE.......................................................................................................................................................................... 9
5 GENERAL REQUIREMENTS FOR GWO TRAINING ...................................................................................................... 10
5.1 O VERVIEW ................................................................................................................................................................ 10 5.2 T ARGET G ROUP .......................................................................................................................................................... 10 5.3 A IMS AND O BJECTIVES ................................................................................................................................................ 10 5.4 D URATION OF BTT M ODULES ...................................................................................................................................... 10 5.5 V ALIDITY P ERIOD ........................................................................................................................................................ 12 5.6 C OURSE C ODES .......................................................................................................................................................... 12 5.7 P ARTICIPANT P REREQUISITES FOR THE BTT..................................................................................................................... 12 5.8 P HYSICAL D EMANDS ................................................................................................................................................... 13
6 GENERAL RESOURCES REQUIRED TO DELIVER BTT MODULES ................................................................................. 14
6.1 I NSTRUCTOR /P ARTICIPANT R ATIO ................................................................................................................................. 14 6.2 P RACTICAL T RAINING F ACILITIES .................................................................................................................................... 14 6.3 E QUIPMENT ............................................................................................................................................................... 14 6.4 H ANDOUTS ................................................................................................................................................................ 14
7 UNDERSTAND GWO LEARNING OBJECTIVES ............................................................................................................ 15
7.1 L EARNING OBJECTIVES ................................................................................................................................................. 15 7.2 T AXONOMY ............................................................................................................................................................... 15 7.3 S UMMING UP THE LEARNING OBJECTIVES ........................................................................................................................ 17
8 ADMINISTRATION AND CERTIFICATION OF MODULES............................................................................................. 18
8.1 P ARTICIPANT P ERFORMANCE A SSESSMENT ..................................................................................................................... 18
9 THE BTT MECHANICAL MODULE............................................................................................................................... 21
9.1 A IMS AND OBJECTIVES OF THE BTT M ECHANICAL M ODULE ............................................................................................... 21 9.2 D URATION OF THE BTT M ECHANICAL M ODULE ............................................................................................................... 21
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9.3 E QUIPMENT ............................................................................................................................................................... 22 9.4 BTT M ECHANICAL M ODULE T IMETABLE ......................................................................................................................... 22 9.5 L EARNING OUTCOMES OF THE BTT M ECHANICAL M ODULE ............................................................................................... 24 I NTRODUCTION ................................................................................................................................................... 24 M ECHANICAL I NTRODUCTION ................................................................................................................................ 27 M ECHANICAL S AFETY ........................................................................................................................................... 29 T HE PRINCIPLES OF BOLTED AND WELDED CONNECTIONS ............................................................................................ 31 U SE OF MANUAL TIGHTENING AND MEASURING TOOLS ............................................................................................... 34 H YDRAULIC T ORQUE AND T ENSION ......................................................................................................................... 37 G EARBOX ........................................................................................................................................................... 38 B RAKING SYSTEMS ............................................................................................................................................... 40 Y AW SYSTEM ...................................................................................................................................................... 41 C OOLING SYSTEM .............................................................................................................................................. 43 L UBRICATION SYSTEM ......................................................................................................................................... 44 S UMMARY AND T HEORETICAL TEST ....................................................................................................................... 46 T RAINING R EVIEW ............................................................................................................................................. 47
10 MODULE 2 - THE BTT ELECTRICAL MODULE ........................................................................................................... 50
10.1 A IMS AND OBJECTIVES OF THE BTT E LECTRICAL M ODULE ................................................................................................ 50 10.2 D URATION OF THE BTT E LECTRICAL M ODULE ............................................................................................................... 50 10.3 E QUIPMENT ............................................................................................................................................................. 51 10.4 BTT E LECTRICAL M ODULE T IMETABLE ......................................................................................................................... 51 10.5 L EARNING OUTCOMES OF THE BTT E LECTRICAL M ODULE ................................................................................................ 53 I NTRODUCTION ................................................................................................................................................... 53 I NTRODUCTION TO ELECTRICITY .............................................................................................................................. 57 E LECTRICAL S AFETY .............................................................................................................................................. 59 E LECTRICAL C OMPONENTS .................................................................................................................................... 63 S ENSORS ............................................................................................................................................................ 69 E LECTRICAL CIRCUITS ............................................................................................................................................ 71 E LECTRICAL MEASURING INSTRUMENTS ................................................................................................................... 72 S UMMARY AND T HEORETICAL TEST ......................................................................................................................... 74 T RAINING R EVIEW ............................................................................................................................................... 75
11 MODULE 3 - THE BTT HYDRAULIC MODULE ........................................................................................................... 78
11.1 A IMS AND OBJECTIVES OF THE BTT H YDRAULIC M ODULE ................................................................................................ 78 11.2 D URATION OF THE BTT H YDRAULIC M ODULE ................................................................................................................ 78 11.3 E QUIPMENT ............................................................................................................................................................. 79 11.4 BTT H YDRAULIC M ODULE T IMETABLE ......................................................................................................................... 79 11.5 L EARNING OUTCOMES OF THE BTT H YDRAULIC M ODULE ................................................................................................ 81 I NTRODUCTION ................................................................................................................................................... 81
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H YDRAULIC I NTRODUCTION ................................................................................................................................... 84 H YDRAULIC S AFETY .............................................................................................................................................. 85 P UMPS .............................................................................................................................................................. 90 A CTUATORS ........................................................................................................................................................ 91 V ALVES .............................................................................................................................................................. 91 A CCUMULATORS ................................................................................................................................................. 97 S ENSORS ............................................................................................................................................................ 98 P IPES , HOSES AND CONNECTIONS ........................................................................................................................... 99 O IL AND FILTERS .............................................................................................................................................. 100 H YDRAULIC DIAGRAMS ..................................................................................................................................... 102 P RESSURE MEASURING TOOLS ............................................................................................................................ 104 S UMMARY AND T HEORETICAL TEST ..................................................................................................................... 105 T RAINING R EVIEW ........................................................................................................................................... 106
12 MODULE 4 - THE BTT INSTALLATION MODULE..................................................................................................... 108
12.1 A IMS AND OBJECTIVES OF THE BTT I NSTALLATION M ODULE .......................................................................................... 108 12.2 D URATION OF THE BTT I NSTALLATION M ODULE .......................................................................................................... 108 12.3 P ARTICIPANT P REREQUISITES FOR THE BTT I NSTALLATION M ODULE ............................................................................... 109 12.4 E QUIPMENT ........................................................................................................................................................... 109 12.5 BTT I NSTALLATION M ODULE T IMETABLE .................................................................................................................... 109 12.6 L EARNING OUTCOMES OF THE BTT I NSTALLATION M ODULE .......................................................................................... 112 I NTRODUCTION ................................................................................................................................................. 112 I NTRODUCTION TO I NSTALLATION ......................................................................................................................... 115 G ENERAL PROCEDURES FOR WORKING ONSITE WITH INSTALLATION ............................................................................ 119 I NSTALLATION ENVIRONMENTS ............................................................................................................................ 121 H ANDLING AND STORING .................................................................................................................................... 122 L IFTING OPERATIONS .......................................................................................................................................... 125 M AIN COMPONENT PREPARATION , PRE - ASSEMBLY AND ASSEMBLY ............................................................................ 128 P RINCIPLES OF M ECHANICAL C OMPLETION ............................................................................................................ 131 P RINCIPLES OF ELECTRICAL COMPLETION , INCLUDING CABLE WORK ............................................................................ 133 P RINCIPLES OF HYDRAULIC COMPLETION .............................................................................................................. 139 P RINCIPLES OF OPERATION WITH EXTERNAL GENERATORS ....................................................................................... 141 I NTRODUCTION TO HANDOVER TO COMMISSIONING .............................................................................................. 145 S UMMARY AND T HEORETICAL TEST ..................................................................................................................... 146 T RAINING R EVIEW ........................................................................................................................................... 147
EQUIPMENT LIST.......................................................................................................................................... 150
VERSION HISTORY........................................................................................................................................ 155
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1 List of Abbreviations
ANSI
American National Standards Institute
AS/NZS
Australia and New Zealand Standard
BTT
Basic Technical Training
BWH
Basic Working at Height
CO 2
Carbon Dioxide
CSA
Canadian Standards Association
EN
European Standards
GWO
Global Wind Organisation
LOTO
Lock Out Tag Out
PPE
Personal Protective Equipment
MES
Marine Evacuation Systems
WTG
Wind Turbine Generator
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2 Terms and Definitions
The purpose of this section is to avoid different interpretations of these terms depending on whoever is reading the standard.
Human factors refers to an established science that uses many disciplines (like anatomy, physiology, physics and biomechanics) to understand how people perform under different circumstances and environments Instructor’s feedback should focus on what the participant must adjust to perform correctly. Feedback may involve dialogue, where the participant reflects on his/her understanding or performance. Learning activity involving all participants. Group discussions may be conducted in smaller groups. The instructor should step back and only interfere to facilitate the experience exchange between participants. Optimal group size is 4 participants.
Human factors
Feedback
Group discussion
Engage in discussions
Instructor has to create discussions involving the participants.
Function
Purpose. What is it doing? What can it be used for?
A hazard is any source of potential damage, harm or adverse health effect on something or someone.
Hazard
Installation
1. 2. 3.
Preparation Pre-assembly
Assembly
Operation
How does it work?
Practice
The participants apply what they are learning
A risk is the chance or probability that a person will be harmed or experience an adverse health effect if exposed to a hazard
Risk
Use
How to operate it? How to make it work?
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3 Change Log – Version 6
Amendment date
April 2021
Approved by & date
Version
6
Description of changes
Taxonomy alignment throughout - To be aligned with the reviewed GWO Taxonomy, all learning objectives have been updated with action verbs that reflect the new taxonomic levels (basic, intermediate and advanced level). - Additionally, learning activities have been added to the standard to match the updated learning objectives e.g. learning activities that focus on participant engagement have been added for all intermediate level learning objectives to reflect the reviewed GWO Taxonomy.
Updates to equipment lists for mechanical and electrical modules
- Overall, the changes are two additions to the mechanical equipment list (hydraulic tools for torque and tension with electrical pumps and an impact gun) and specifications of the quantity of key equipment currently listed in the two modules´ equipment lists. Changes to section “Understanding GWO learning objectives” - The section Understanding GWO learning objectives has been updated to reflect the reviewed GWO Taxonomy Delegates to participants - The Delegates have been changed to The Participants , as participant is the proper designation for a person participating in an activity. Human factors - Added as an introductory element in all the modules in the standard to initiate the participants’ focus on 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. Name and activity change for the Evaluation lesson to Training review - The naming of the Evaluation lesson has been changed to Training review to align with the other GWO standards and to facilitate a focus on the participants’ reflections on the learning outcomes and the instructor’s feedback. Activity change for the introduction lesson - To align with the other GWO standards, the activities in the introduction lesson has been changed to enable the participants in engaging in the training safely and motivated while recognizing what is expected of them during the training Name and activity change for the Evaluation lesson to Training review - The naming of the Evaluation lesson has been changed to Training review to align with the other GWO standards and to facilitate a focus on the participants’ reflections on the learning outcomes and the instructor’s feedback.
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Content changes Mechanical Module -
Element 2.1.1 inserted ‘ Main bearing ...’ to the list of main components - Elements 6.1.1 & 6.2 added safety emphasis on using hydraulic tools and correct use of pressure charts Electrical module - Element 3.1.1 added “ Explain the dangers of electricity :…” - Element 3.1.2 added “ (including late effects) - Element 3.2.2 added “ Explain the basic difference of hazards between High Voltage and Low Voltage ” - Element 3.2.3 added “ Show examples of HV safety signs and HV restricted areas (e.g. HV transformer …)”
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4 Scope
This standard has been developed in response to the demand for recognizable Basic Technical Training in the industry and has been prepared in co-operation between the members of GWO based on risk assessments and factual incident and accident statistics pertaining to the installation, service and maintenance of wind turbine generators and wind power plants. This standard describes the requirements for Basic Technical Training modules that are recommended by the members of GWO. The standard covers 4 modules:
Hydraulic
Mechanical
Electrical
Installation
The members of the Global Wind Organisation (GWO) recognise trained persons as being able to safely perform basic hydraulic, mechanical, electrical and installation tasks under the supervision of an experienced technician. GWO members agree that everyone working on one of their properties (Wind Turbine Generators, sub stations, etc.) shall complete Basic Technical Training courses relevant for their assignments. All work shall be done in teams of at least 2 competent persons. Exemptions from the above can be made based on internal company rules. This standard has been developed by the GWO Training Committee. The standard was based on the EU-funded pro ject “Adapting a Transparent Training Programme” , completed in 2014.
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5 General Requirements for GWO Training
Upon completion of the Global Wind Organisation (GWO) Basic Technical Training (BTT), participants will possess an awareness of the hazards encountered when working on hydraulic, mechanical, electrical and installation systems, and how to control and mitigate these hazards, preparing candidates for working both on and offshore in the wind power industry. These training modules can be delivered independently of one another or as stand-alone training. The installation module is not part of the mandatory BTT training, and it is up to the duty holder to decide if this should be mandatory training.
5.1 Overview
The GWO Basic Technical Training is divided into the following four modules:
Hydraulic
Mechanical
Electrical
Installation
5.2 Target Group
The Basic Technical Training modules are targeted at candidates who have no previous experience of hydraulic, mechanical, electrical or installation systems, but may also be used to upskill candidates who have some knowledge but not of its application in wind turbines.
5.3 Aims and Objectives
This BTT Training shall enable participants to be able to perform basic hydraulic, mechanical, electrical and installation tasks under the supervision of an experienced technician. This course will not make the participant a trained person who is allowed to perform hydraulic, mechanical, electrical or installation work without supervision.
5.4 Duration of BTT Modules
The total contact time for completing the stand-alone modules in this basic technical training standard is estimated to be 32 hours . This is based on the time estimates given in the module timetables and summarised in table 5-41 & 5-42 below.
The training provider must not exceed the times per day given in table 5-7 below.
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The training provider must ensure that sufficient time is allowed for participants with prior experience to share their experiences related to the modules of the basic technical training standard in a way that is constructive for the entire class. Durations stated in the table below are meant as an orientation for anyone delivering the training. Small variations are acceptable as far as they do not compromise the achievement of the objectives for all participants. If the following modules are delivered as part of a complete training, the common elements of introduction and evaluation may be combined, reducing the total contact time. How this may be achieved is suggested in the timetables for each module
Modules
Duration (*Effective time) As stand-alone training
Duration (*Effective time) As part of combined training
Mechanical
13.67 hours 9.92 hours 8.92 hours
13.67 hours 9.50 hours 8.50 hours 31.67 hours
Electrical Hydraulic
TOTAL
Table 5-41 - Duration of GWO BTT Modules
Modules
Duration (*Effective time) As stand-alone training
Duration (*Effective time) As part of combined training
Mechanical Installation
13.67 hours 17.67 hours
13.67 hours 17.25 hours 30.92 hours
TOTAL
Table 5-42 - Duration of GWO Mechanical and Installation Modules
Maximum duration per day
Contact time
8 hours
Total training day
10 hours
Table 5-43 - Maximum durations for training days
Note: Contact time includes delivery of course lesson content, practical exercises, and activities directly related to these .
The total training day includes contact time, meals and breaks and travel between training sites (where applicable).
Within the module timetables, the approximate duration of each of the lesson is given. The training provider may choose to deliver elements of the training according to other timetables, as long as the total duration is not reduced, and practical elements are not reduced in length. Theoretical elements may be delivered during the practical exercises when feasible. The practical skills shall be trained and demonstrated, and all elements of the module shall be covered by demonstration where possible. If the Mechanical, Electrical and Hydraulic modules are delivered as a combined training, the total contact time is estimated as at least 4 days of training (at least 31 hours 40 minutes of effective training time).
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If the Mechanical and Installation modules are delivered as a combined training, the total contact time is estimated as at least 4 days of training (at least 30 hours 55 minutes of effective training time).
If delivered as separate modules, the effective training time for each module is as follows:
The Mechanical module is estimated as a 2-day course (at least 13 hours and 40 minutes).
The Electrical and Hydraulic modules are estimated as 1.5-day courses (at least 9 hours 55 minutes for the Electrical module and at least 8 hours 55 minutes for the Hydraulic module).
The Installation module is estimated as a 2.5-day course (at least 17 hours and 40 minutes).
It shall be ensured that everybody is given the opportunity to share their opinions and experiences where possible. Additionally, it shall be ensured that participants with prior experience share their experiences in a way that is constructive for the entire class.
The BTT modules will still be taught as per the lesson plan, whether the participant has prior experience or not.
5.5 Validity Period
The Basic Technical Training is an enduring qualification, so a validity period does not apply to this training. This is based on the assumption that the participant is actively working in a wind turbine environment. If there is an extended period of absence from applying the skills, retraining and recertification may be required according to national legislation and company policy. A maximum interval between successful completion of the BTT Hydraulic, Mechanical, Electrical and Installation modules does not apply. This is based on the assumption that the participant is actively working in a wind turbine environment. If there is an extended period of absence from applying the skills, retraining and recertification may be required according to national legislation and company policy.
5.6 Course Codes
Module
Course Code
BTT Mechanical
BTTM
BTT Electrical
BTTE
BTT Hydraulic
BTTH
BTT Installation
BTTI
Table 5-6 - GWO BTT module course codes
5.7 Participant Prerequisites for the BTT
All personnel participating in Basic Technical Training shall be medically fit and capable of fully participating.
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Training providers shall have a procedure that requires participants to sign a statement stating that they are medically fit to participate in the safety training, that they do not suffer from any medical illness, and that they are not under the influence of any narcotic substance or alcohol. The Requirements for Training Providers Annex 2: Medical Self-Assessment Form shall be used if no other equivalent procedure is in place. Participants’ signatures testifying to their medical fitness shall be collected prior to the start of the Basic Technical Training course. Furthermore, participants shall have created a personal participant profile in WINDA, and provide their own WINDA ID prior to completing the BTT training. There is only a prerequisite to attend the Installation module, hence, the participant must have completed the Mechanical module before attending the Installation training. There are no prerequisites for the remaining modules, but some sort of practical mechanical or electrical maintenance background would be useful. Furthermore, personnel in the wind service industry must be able to read and write to a sufficient standard to be able to carry out instructions and complete the required documentation. It is an advantage if participants are able to read, speak and write English.
5.8 Physical Demands
BTT modules do not have any specific expected physical demands.
However, if there is any doubt regarding the medical fitness of any participant, the training provider shall stop training the participant, and seek a physician’s advice.
Note: Practical exercises shall be designed and delivered solely to meet this standard, and shall not place any physical or mental demands on the participants other than those required to meet this standard.
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6 General Resources Required to Deliver BTT Modules
The training provider shall ensure that staff, facilities and equipment are in place to support the training of participants.
6.1 Instructor/Participant Ratio
The ratio shown for the theory session indicates the maximum number of participants attending the modules.
Other ratios indicate the maximum number of participants to be supervised by an instructor during each activity.
Modules
Session
Instructor – Participant Ratio
Theory
1:12
All BTT Modules
Practical
1:8
Table 6-1 - GWO BST Instructor to participant ratios
6.2 Practical Training Facilities
A practical workshop is required that has enough space to accommodate 8 participants, with a respective work area each of approximately 3 square metres.
6.3 Equipment
The equipment required for the delivery of the BTT modules is shown in Annex 1.
6.4 Handouts
Handouts must be given to the participants containing, as a minimum:
Electrical symbols mentioned in the BTT Standard
Hydraulic symbols mentioned in the BTT Standard
Formulas used (Pascal’s Law, Ohm’s Law, Torque…)
These handouts could be used as reference for the participants during the entire course and also during the test at the end.
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7 Understand GWO Learning Objectives
7.1 Learning objectives
Learning objectives describe what the participant should know and be able to do when the training is completed.
The learning objectives are based on the mitigating precautions analysed in the risk assessment, and are the foundation of the learning activities, the course contents and what the participant performance assessment must be based upon.
Coherence between the learning objectives, the learning activities and the assessment is essential. The purpose of this coherence is twofold. Firstly, this coherence ensures that learning activities are directly focused on reaching the learning objectives. Secondly, this coherence ensures that assessment of how well the learning objectives are met is done in close coherence with the abilities the participant has practiced during the learning activities and in a comparable environment to the participant’s subsequent work in the wind industry.
Enabling learning objectives are further sub-specifications of the learning objectives. Enabling objectives are what the instructor should be concentrating on when observing the participants performance and development in action . Furthermore, evaluation should be focused on the enabling objectives as well as on the learning objectives. Ability is what is performed and presented during real-life exercises as well as in the real work situation, and is the sum of experiences, knowledge, skills and attitudes. To be able to focus training on building up the necessary abilities, the learning objectives are described according to the taxonomy in the three domains: Knowledge, Skills and Ability.
7.2 Taxonomy
The GWO Taxonomy offers:
Guidance and support for training providers when designing both focused and assessable learning activities from the stated learning objectives. Guidance and inspiration for instructors when executing learning activities and when assessing the participants’ learning outcome.
Digital advice when feasible.
Instructions and guidance for auditors when auditing in the pedagogical and didactic scope.
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Learning objectives are presented in three taxonomic levels: Basic, Intermediate and Advanced level. The three levels in each domain are described as follows:
Knowledge
Skills
Ability
The participant understands a topic in a holistic view, where risks, advantages and disadvantages are considered, forming the background for reflected assessments or decisions for action.
The participant can experiment and refine his or her skills, as well as reflect and evaluate on the behaviour and reactions in relevant situations. The participant can test the applicability of the skill, and distinguish between relevant and less relevant situations to apply the skill in. Basic cognitive and practical skills required to apply relevant instructions and procedures to solve routine problems using simple rules and tools.
Can adapt and act responsibly in new ways, pay attention to the safety of fellow workers, and propose development of safety procedures.
Safety-awareness and responsibility are an instinctive part of ability.
The participant can account for how things are done ,
The participant can act independently, is able to
or can explain how a piece of equipment or a tool is used .
identify connections and risks in work related situations, and can take initiative and responsibility for feasible mitigating actions on the job.
The participant can describe a topic, name its constituent parts or simply refer to it. Basic knowledge is observed by a one- dimensional objective: “I can state a fact”.
The participant can act independently in familiar work situations.
The taxonomy levels in the learning objectives are defined by a reasonable number of precise and explained action verbs. These action verbs are presented in a progression of increasing complexity - beginning on the basic level, where the participant can recognise or name a tool or a procedure, and ending at the advanced level, where the participant can take responsibility and even assist fellow workers on the work site. The taxonomy and the presentation of action verbs in the progressive order imply that th e previous taxonomic competences are already achieved. Learning objectives in this standard are followed by an indication of the taxonomy level and domain in brackets e.g. (Skills, advanced level)
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7.3 Summing up the learning objectives
A specific action verb indicates a taxonomic complexity level that calls for specific learning activities for the participant to reach the decided learning objectives.
During the learning activity, the participant shall practice doing what the action verb indicates.
In addition to this, the instructor’s evaluation in action, as well as the evaluation at the end of a module or a training, becomes transparent, when the participant’s ability to meet the learning objectives is assessed by comparing the partic ipant’s performance with the action verbs and contents of the learning objective.
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8 Administration and Certification of Modules
8.1 Participant Performance Assessment
The participants will be assessed separately on each module according to the learning objectives, by means of direct observation and supplementary oral questions where appropriate (formative evaluation). Furthermore, the participants will be subjected to a written phase test on each module according to the learning objectives (summative evaluation). The written tests can consist of multiple-choice or descriptive answer questions, and shall be set at the same taxonomy level as the objective that they are testing.
The multiple-choice test must be conducted in accordance with the following criteria:
There shall be at least one question for each lesson in the module with a minimum of 10 questions for each stand-alone module.
There shall be a time limit of 1½ minutes per question.
The tests must be individual.
The participants shall not communicate with each other during the test
The participants shall not communicate with any persons via email, telephone, Skype (or similar) or social media during the test Where a participant does not understand the meaning of a question or a multiple-choice option, the instructor shall be allowed to help the participant to understand the meaning of the question or the multiple-choice options. The instructor shall not give the participant the correct answers to any test questions.
Participants may use:
a. Training material.
b. Handouts.
c. Own notes
Participants may not use:
a. Mobile phones (except for calculator).
The multiple-choice test questions cannot be used at any other time during the training in such a way that the participants could recognise that they will be test questions at the end. At least 70% of the questions in the written test must be answered correctly in order to pass the corresponding module. In the event that a participant fails the test, the instructor will have a discussion with the participant in order to find out the reason for this. If the reason was due to the misunderstanding of a question or due to language difficulties, the instructor can mark a question as correct, provided that the participant is able to demonstrate the right level of understanding. This must be properly documented by the instructor and kept together with the tests, control measures, evaluations, etc.
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Throughout each of the BTT modules, the instructor will use the participant performance assessment form (see annex 1 of the Requirements for Train ing Providers) to evaluate the participant’s knowledge and skills, with a high focus on evaluating the participant’s safety awareness. The instructor shall keep a participant performance assessment form (or adaptation) for each participant until the completion/evaluation of each BTT training module. The participant performance assessment form (or adaptation) is a final evaluation tool for the instructors to assess participants during practical elements. It allows measurement of the number of violations regarding safety, competency or attitude. The participant performance assessment form shall be used as a progressive evaluation tool to discuss the performance of a participant in guiding them to success. It also serves as supporting documentation if a participant passes or fails the module.
Training providers may adapt the participant performance assessment form to other media.
Training providers must have a documented procedure in place for dealing with participants not meeting the stated learning outcomes.
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Mechanical Module (BTTM)
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9 The BTT Mechanical Module
9.1 Aims and objectives of the BTT Mechanical Module
The aim of this BTT Mechanical Module is to give the participants the knowledge and skills to carry out basic mechanical tasks (supervised by an experienced technician), using safe working procedures and the correct PPE.
After having successfully completed the BTT Mechanical Module, participants will be able to:
Describe the main components, mechanical systems and basic operation of wind turbines (Knowledge, basic level)
Discuss risks and hazards associated with mechanics (Knowledge, intermediate level)
Explain the principles of bolted and welded connections and their inspection (Knowledge, intermediate level)
Apply manual tightening and measuring tools (Skills, intermediate level)
Perform the correct use of hydraulic torque and tensioning tools (Skills, intermediate level)
Recognise the principles of a gearbox (Knowledge, basic level)
Recognise the function of the brake systems (Knowledge, basic level)
Perform inspection of brake systems (Skills, intermediate level)
Recognise the function of the yaw system and how to inspect it (Knowledge, basic level)
Recognise the function of the cooling system (Knowledge, basic level)
Perform inspection of the cooling system (Skills, intermediate level)
Recognise the function of the lubrication system (Knowledge, basic level)
Perform inspection of the lubrication system (Skills, intermediate level)
9.2 Duration of the BTT Mechanical Module
The total contact time for completing this BTT mechanical module is estimated to be 13.67 hours. This is based on the time estimate given in the module timetable.
The training provider must not exceed the times per day given in table 9-2 below.
The training provider must ensure that sufficient time is allowed for participants with prior experience to share their experiences related to the module in a way that is constructive for the entire class.
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Maximum duration per day
Contact time
8 hours
Total training day
10 hours
Table 9-2 - Maximum duration for training days
Note:
Contact time includes completion of course lesson content, practical exercises and activities directly related to these .
The total training day includes contact time, meals and breaks, and travel between training sites (where applicable).
9.3 Equipment
The equipment required for training as listed in Annex 1 must be available and must fulfil national legal requirements in the country where the training is taking place.
9.4 BTT Mechanical Module Timetable
Within the module timetables, the approximate duration of each of the lessons is given. The training provider may choose to deliver elements of the training according to other timetables, as long as the total duration is not reduced, and practical elements are not reduced in length. Theoretical elements may be delivered during the practical exercises when feasible.
The order in which the elements of the training module are delivered may vary.
Lesson
Element
Approx. duration
1
Introduction
1.1 1.2 1.3 1.4 1.5 1.6 1.7
Safety instructions and emergency procedures
Facilities
Introduction
Aim and objectives
On-going assessment
Motivation Human factor TOTAL
30 min.
2
Mechanical introduction
2.1
Main components of the structure
2.2 2.3
Main mechanical systems
How a turbine works TOTAL
60 min.
3
Mechanical Safety
3.1
Why mechanical safety?
3.2
Safety signs
3.3
Types of PPE
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3.4
The importance of appropriate isolation TOTAL
30 min.
4
The principles of bolted and welded connections
4.1
The principles of bolt connections
4.2
The locations of important bolted and welded connections
4.3
Inspection of welded connections
4.4
Bolt connections and correct tightening tools TOTAL
80 min.
5
Use of manual tightening and measuring tools
5.1
Metric system
5.2
Selecting and using the correct manual tightening tools
5.3
Correctly setting and using a torque wrench
5.4
Feeler gauges
5.5
Callipers
5.6
Dial gauge TOTAL
70 min.
6
Hydraulic Torque and Tension
6.1
Using a hydraulic torque wrench
6.2
Using a hydraulic tensioning tool TOTAL
300 min.
7
Gearbox
7.1
The function and operating principles
7.2
Inspection of the gearbox TOTAL
30 min.
8
Braking system
8.1
The function of the mechanical and the aerodynamic brake
8.2
Inspection of the mechanical brake system TOTAL
40 min.
9
Yaw System
9.1 9.2
The function of the yaw system Inspection of the yaw system TOTAL
30 min.
10
Cooling System
10.1 10.2
Components requiring cooling and why Inspection of the cooling systems TOTAL Components requiring lubrication and why Inspection of the lubrication systems TOTAL
30 min.
11
Lubrication System
11.1 11.2
75 min.
12
Summary and Theoretical test
12.1 12.2
Summary
Theoretical test TOTAL Training review TOTAL
30 min.
13
Training review
13.1
15 min.
GRAND TOTAL
820 min.
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