Electrical Equipment for Hazardous Areas GNEM1

Transcription

1 Electrical Equipment for Hazardous Areas GNEM1 This module should be designed to develop the candidate s skills and knowledge on the operating procedures and techniques for working on electrical apparatus in hazardous and potentially explosive environments. The competency requirements for this unit are as nationally recognised throughout the industry. What does this specification look like? All personnel who operate in these conditions must be competent to perform their duties, using the appropriate techniques and following operational procedures. To achieve this the training and assessment must be delivered by appropriately skilled and experienced staff in a controlled environment that is as near to working situations as is possible. The training will be divided in to two distinct halves, these being the knowledge elements and the practical competency validation assessment. The knowledge element must precede the practical competency validation assessment. The assessments must be to nationally set criteria (CompEx) and are both practical and theory based. It is anticipated that the minimum duration for this training and assessment is 5 days (35 hours). What do I need to take this module? To undertake this module the individual should be a practising electro-technical person, this being validated through evidence of previous qualification or via a company-supporting letter on company letter headed paper. Knowledge and understanding To achieve this unit, you will need to be able to know and understand: The general principles of working in hazardous areas K1. The nature of flammable materials including; the fire triangle, flashpoint, relative density, upper and lower explosive limits, ignition temperature, ignition sources, the effects of oxygen enrichments and the effect of relevant density of different gases. K2. The basic principles of hazardous area classification; Zone 0, Zone 1, Zone 2. K3. Gas grouping according to Maximum Experimental Safe Gap (MESG) and Minimum Ignition Energy (MIE) I, IIA, IIB, IIC. K4. The appropriate T ratings of apparatus (T1 T6) relative to the ignition temperature of gases. K5. Levels of ingress protection. The standards for certification and marking K6. The current British, European and international standards. K7. Relevant older British Standards and codes of practice. K8. The certification process for explosion protected equipment and apparatus, ATEX directives, CE Conformity. Energy & Utility Skills Group Page 1

2 K9. The methods for the marking of explosion-protected apparatus including; Ex symbols used, the type of protection, the gas group and the temperature rating. The requirements of flameproof apparatus EEX d/ex d K10. Principles of operation and pressure piling. K11. General construction requirements including types of joints. K12. Installation requirements of thread engagement of cable entries, stopping devices, obstruction of flame paths, weather proofing methodologies and circuit protection in accordance with approved standards. K13. Inspection requirements in accordance with approved standards. The requirements of increased safety for EEX e/ex e equipment K14. The principles of operation of increased safety apparatus. K15. The principle design features of increased safety apparatus including motors and thermal overload devices. K16. Increased safety terminal types, ratings and applications. K17. Estimation of terminal population in enclosure including; enclosure factor, load limit, Kelvin rating and maximum dissipated power. K18. The installation, inspection and maintenance requirements of increased safety enclosures. The requirements of Type n Apparatus Ex N/EEx n/ex n K19. The principles of operation of Type n apparatus K20. The principle design features of Type n apparatus K21. The application of protection methods for sparking or arcing components, to enable their use in enclosures K22. The installation, inspection and maintenance requirements of type n apparatus The requirements of Pressurised EEX p/ex p Apparatus K23. The principles of operation of and design criteria and control measures for the safe operation of pressurised equipment and enclosures. K24. The types of pressurisation methods and protective gases used. K25. The importance of purging pressurised equipment and enclosures prior to use K26. Actions required on the loss of over pressure. K27. The installation, inspection and maintenance requirements of pressurised apparatus and enclosures. The requirements of Intrinsic safety EEx I/Exi apparatus K28. The definition and principles of operation of intrinsic safety systems and apparatus. K29. The differences between ia, ib, and ic intrinsic safety categories. K30. The importance of Zener and galvanic interfaces. K31. The installation, inspection and maintenance requirements of intrinsic safety systems and apparatus. Energy & Utility Skills Group Page 2

3 The types and application of other methods of protection EEx o/ex o, EEx q/ex q, EEx m/ex m, and Ex s apparatus K32. The principle of operation and typical applications for each of the following types of protection EEx o/ex o Oil Immersion, EEx q/ex q Powder filling, EEx m/ex m Encapsulation, and Ex s special protection. The use of Combined or Hybrid methods of protection K33. The advantages of combining two or more methods of protection. K34. Where combined or hybrid methods of protection are used. K35. The installation, inspection and maintenance requirements of combined/hybrid methods of protection. Wiring Systems K36. Cable types appropriate for use with explosion protected apparatus. K37. The consideration required to the; gas group, cable construction, volume, method of entry, zoning and internal components, when selecting cable glands for use in flameproof enclosures. K38. The assembly techniques for cable glands in line with current standards. K39. The approved practices for the termination of either single or multiple pair cables with or without screens. K40. The approved practices for maintaining earth continuity, ingress protection and termination of unused conductor cores and screens. K41. The installation, inspection and maintenance requirements of wiring systems in line with current standards. The Inspection and Maintenance requirements K42. The importance of regular and appropriate inspection and maintenance. K43. The requirement and definition of initial, periodic and sample inspections. K44. The application of visual, close and detailed grades of inspection schedules in line with current standards and industry defined templates. The Identification of sources of ignition K45. The common and lesser known sources of ignition including; sparks, hot surfaces, batteries, friction, static electricity, metallic impact, lightning, pyrophoric reaction, vibration and radio frequency. The requirements for competency validation testing K46. The procedures and competency requirements for EX01: the preparation and installation of Ex d, Ex e and EX n apparatus. K47. The procedures and competency requirements for EX02: the inspection of Ex d, Ex e and EX n apparatus. K48. The procedures and competency requirements for EX03: the preparation and installation of an Ex i system and associated apparatus. Energy & Utility Skills Group Page 3

4 K49. The procedures and competency requirements for EX04: the inspection of an Ex i system and associated apparatus. The requirements for Permits to work and safe isolation K50. The procedure for completion of a permit to work. K51. How to identify from drawings the location of protection and control devices. K52. The procedure to safely isolate and secure the isolation of electrical circuits and apparatus. Performance Criteria To achieve this unit you will need to be able to: Demonstrate the competency requirements for EX01: the preparation and installation of Ex d, Ex e and EX n apparatus P1. Correctly locate the electrical supply source and safely isolate the installation under the control of a permit to work system. P2. Inspect the suitability of pre-fixed apparatus, cables and glands. P3. Install appropriate cables and glands in a way that will maintain the integrity of the prefixed apparatus. P4. Conduct appropriate electrical and or instrumentation tests after ensuring appropriate safeguards are in place. P5. Fit apparatus/equipment covers and live test the installation. Demonstrate the competency requirements for EX02: the inspection of Ex d, Ex e and EX n apparatus P6. Using table 1 of BS inspect the apparatus and environment in which it is installed to: a) Identify and record five Visual faults b) Identify and record five Close faults c) Identify and record five Detailed faults P7. Produce a report of the faults identified and detail the necessary remedial action to return the installation back to the correct specification. P8. Correctly locate the electrical supply source and safely isolate the installation under the control of a permit to work system prior to completion of c) above. Demonstrate the competency requirements for EX03: the preparation and installation of an Ex i system and associated apparatus P9. Inspect the suitability of pre-fixed apparatus, cables and glands. P10. Install appropriate cables and glands in a way that will maintain the integrity of the prefixed apparatus. P11. Conduct appropriate electrical and or instrumentation tests after ensuring appropriate safeguards are in place. Energy & Utility Skills Group Page 4

5 Demonstrate the competency requirements for EX04: the inspection of an Ex i system and associated apparatus P12. Using table 2 of BS inspect the apparatus and environment in which it is installed to: a) Identify and record five Visual faults b) Identify and record five Close faults c) Identify and record five Detailed faults P13. Produce a report of the faults identified and detail the necessary remedial action to return the installation back to the correct specification. P14. Correctly locate the electrical supply source and safely isolate the installation under the control of a permit to work system prior to completion of c) above. Demonstrate the correct use of Permits to work following the procedure for safe isolation and de-isolation P15. Make the request for a permit to work in line with procedures. P16. Complete the relevant parts of the permit to work and obtain the required authorisation. P17. Identify the point of isolation plant reference number and apparatus ID for Zero Voltage testing. P18. Isolate the electrical circuit and secure using an appropriate lock and attach the correct warning label. P19. Request a gas-free certificate or conduct atmospheric sampling using approved gas detection equipment to establish there is no gas present. A record of this must be made on the appropriate documentation. P20. Select the appropriate test instrument and complete a zero voltage test, the instrument used must be proved before and after the test. P21. Record the result of the Zero voltage test on the permit to work. P22. Obtain approval to proceed with the works, once received commence the works. P23. Prior to final instrument testing, request endorsement of the gas-free certificate or conduct further atmospheric sampling using approved gas detection equipment to establish there is no gas present. A record of this must be made on the appropriate documentation. P24. Clear the work area and prepare the installation for live testing. P25. Obtain authorisation for de-isolation. P26. Confirm de-isolation is completed. P27. Obtain cancellation of the permit to work. Energy & Utility Skills Group Page 5

6 Electrical Equipment for Hazardous Areas GNEM1R This module should be designed to refresh the candidate s skills and knowledge on the operating procedures and techniques for working on electrical apparatus in hazardous and potentially explosive environments. The competency requirements for this unit are as nationally recognised throughout the industry. What does this specification look like? All personnel who operate in these conditions must be competent to perform their duties, using the appropriate techniques and following operational procedures. To achieve this the training and assessment must be delivered by appropriately skilled and experienced staff in a controlled environment that is as near to working situations as is possible. The training consists of a refresher on the knowledge elements and a practical competency validation assessment and a written assessment. The knowledge element must precede the practical competency validation assessment. The assessments must be to nationally set criteria (CompEx). It is anticipated that the minimum duration for this training and assessment is 2 days (14 hours). What do I need to take this module? To undertake this module the individual should be a practising electro-technical person who holds a CompEx certificate that was issued < 5 years from the commencement of this refresher course Knowledge and understanding To achieve this unit, you will need to know, understand and complete a written examination on the following: K1. The general principles of working in hazardous areas. K2. The standards for certification and marking. K3. The requirements of flameproof apparatus EEX d/ex d. K4. The requirements of increased safety for EEX e/ex e equipment. K5. The requirements of Type n Apparatus Ex N/EEx n/ex n. K6. The requirements of Pressurised EEX p/ex p Apparatus. K7. The requirements of Intrinsic safety EEx I/Exi apparatus. K8. The types and application of other methods of protection EEx o/ex o, EEx q/ex q, EEx m/ex m, and Ex s apparatus. K9. The use of Combined or Hybrid methods of protection. K10 The requirements for Wiring Systems. K11. The Inspection and Maintenance requirements. K12. The Identification of sources of ignition. K13. The requirements for competency validation testing. K14. The requirements for Permits to work and safe isolation. Energy & Utility Skills Group Page 6

7 Performance Criteria To achieve this unit you will need to complete practical assessment on the following: Demonstrate the competency requirements for EX01: the preparation and installation of Ex d, Ex e and EX n apparatus P1. Correctly locate the electrical supply source and safely isolate the installation under the control of a permit to work system. P2. Inspect the suitability of pre-fixed apparatus, cables and glands. P3. Install appropriate cables and glands in a way that will maintain the integrity of the prefixed apparatus. P4. Conduct appropriate electrical and or instrumentation tests after ensuring appropriate safeguards are in place. P5. Fit apparatus/equipment covers and live test the installation. Demonstrate the competency requirements for EX02: the inspection of Ex d, Ex e and EX n apparatus P6. Using table 1 of BS inspect the apparatus and environment in which it is installed to: a) Identify and record five Visual faults. b) Identify and record five Close faults. c) Identify and record five Detailed faults. P7. Produce a report of the faults identified and detail the necessary remedial action to return the installation back to the correct specification. P8. Correctly locate the electrical supply source and safely isolate the installation under the control of a permit to work system prior to completion of c) above. Demonstrate the competency requirements for EX03: the preparation and installation of an Ex i system and associated apparatus P9. Inspect the suitability of pre-fixed apparatus, cables and glands. P10. Install appropriate cables and glands in a way that will maintain the integrity of the prefixed apparatus. P11. Conduct appropriate electrical and or instrumentation tests after ensuring appropriate safeguards are in place. Demonstrate the competency requirements for EX04: the inspection of an Ex i system and associated apparatus P12. Using table 2 of BS inspect the apparatus and environment in which it is installed to: a) Identify and record five Visual faults. b) Identify and record five Close faults. c) Identify and record five Detailed faults. Energy & Utility Skills Group Page 7

8 P13. Produce a report of the faults identified and detail the necessary remedial action to return the installation back to the correct specification. P14. Correctly locate the electrical supply source and safely isolate the installation under the control of a permit to work system prior to completion of c) above. Demonstrate the correct use of Permits to work following the procedure for safe isolation and de-isolation P15. Make the request for a permit to work in line with procedures. P16. Complete the relevant parts of the permit to work and obtain the required authorisation. P17. Identify the point of isolation plant reference number and apparatus ID for Zero Voltage testing. P18. Isolate the electrical circuit and secure using an appropriate lock and attach the correct warning label. P19. Request a gas-free certificate or conduct atmospheric sampling using approved gas detection equipment to establish there is no gas present. A record of this must be made on the appropriate documentation. P20. Select the appropriate test instrument and complete a zero voltage test, the instrument used must be proved before and after the test. P21. Record the result of the Zero voltage test on the permit to work. P22. Obtain approval to proceed with the works, once received commence the works. P23. Prior to final instrument testing, request endorsement of the gas-free certificate or conduct further atmospheric sampling using approved gas detection equipment to establish there is no gas present. A record of this must be made on the appropriate documentation. P24. Clear the work area and prepare the installation for live testing. P25. Obtain authorisation for de-isolation. P26. Confirm de-isolation is completed. P27. Obtain cancellation of the permit to work. Energy & Utility Skills Group Page 8

9 Gas Network Electrical Module Statutory and Company Requirements GNEM2 This module should be designed to provide a general understanding of the requirements of the Electricity at Work Regulations and how the gas networks comply with these requirements through their company procedures. What does this specification look like? Appropriately skilled and experienced staff must deliver the training and assessment. The training consists of an overview of the Gas Distribution Network Procedures PM/EL/7 Procedures for Compliance with the Electricity at Work Regulations, PM/EL/6 Electricity Safety Rules and Authorisation, PM/RE/9 Recommendations for a system of Electrical Records & PM/EL/13 Earthing requirements. A written assessment must be completed towards the end of the training. It is anticipated that the minimum duration for this training and assessment is 2 days. What do I need to take this module? There are no pre-requisites to completing this module. Knowledge and understanding To achieve this unit, you will need to understand the following: The Electricity at work regulations 1989 K1. The application of the regulations. K2. The definitions used within the regulations including, absolute regulation, reasonably practicable regulation, competent person (electrical), contractor, authorised electrical person, electrical equipment and electrical systems. K3. The regulations deemed applicable to GDN activities, these being regulations 1 16 and 29. K4. The regulations that are deemed absolute and those that are deemed reasonably practicable. K5. Manager responsibilities. K6. Design requirements. K7. Pre-commissioning and inspection requirements. K8. Periodic Inspection and testing requirements. K9. The requirement for work procedures. K10. Competency and training requirements. K11. Protective equipment requirements. K12. The selection and management of contractors. K13. Safety audit requirements. Energy & Utility Skills Group Page 9

10 K14. The responsibilities of non-electrical personnel. K15. The responsibilities of electrical personnel. K16. The requirements when acting as a contractor 3 rd party sites. K17. The responsibilities when hiring electrical equipment. Working on or near electrical systems and equipment at gas operational sites K18. The roles and responsibilities of the following; Competent Person, Authorised Person, Senior Authorised Person, Authorising Engineer, Accompanying Person, High Voltage Operator, High Voltage extension and Restrictive authorisation. K19. The general requirements for the electrical safety rules including: a) Electrical work. b) Non-routine and routine operations. c) Access to sub-stations and HV switch rooms. d) Emergency actions. e) General safety precautions. f) Instructions and objections. g) Communications regarding switching. h) Failure of supply. i) Dangerous occurrences. j) Defective equipment. k) Removal of safety devices. l) Lighting and safe access. m) Fire-fighting equipment. n) Charts and notices. o) Damage to electrical equipment. p) Adverse or Hazardous environmental conditions. q) Overhead Lines. r) Underground and concealed cables. s) Service locks. t) Safety Locks. u) Treatment for electric shock. v) Modifications. K20. The requirements for working on High voltage systems and equipment. K21. The requirements for working on Low voltage systems and equipment. K22. The regulations and requirements for working on or near live systems and equipment. K23. The requirements for electrical permits to work. K24. The requirements for electrical isolation certificates. K25. Precautions to be taken when working in potentially explosive atmospheres. Energy & Utility Skills Group Page 10

11 K26. The general requirements when working on the following items of equipment: a) Remotely and automatically controlled equipment. b) Cables. c) Transformers. d) Capacitors. e) Battery Banks. f) Lighting columns. g) Earth Electrodes. h) Power Transformers. K27. The general requirements for tools and equipment including: a) Portable power tools. b) Safety tools and equipment. c) Test Equipment. d) Certified equipment. e) Earth leads. f) Test connections. K28. The requirements for Authorisation. K29. Authorisation Process. K30. Register of authorisation. The Specification for Earthing K31. The legislation governing the earthing of electrical systems including: a) BS7671. b) The electrical safety, quality and continuity regulations c) The electricity at work regulations K32. The key objectives when designing earthing and bonding systems. K33. The primary purpose of earthing and bonding systems. K34. The types and design of earthing systems to be used on operational sites. K35. Earthing requirements for power systems. K36. The types and application of earthing on power systems. K37. Earthing and cathodic protection compatibility. K38. Earthing requirements for standby power systems. K39. Earthing requirements for control and instrumentation systems, non-intrinsically safe. K40. Earthing requirements for control and instrumentation systems, intrinsically safe. K41. The requirements for lightning protection installations. K42. The requirements and methodology for the diversion of unwanted electrical energy. K43. The requirements for the earthing of remote transformer-rectifier for impressed current cathodic protection. K44. The earthing requirements for installations having higher leakage currents. K45. The testing and inspection of earthing systems. Energy & Utility Skills Group Page 11

12 Instrumentation and electrical records K46. The requirement for the keeping of electrical records: a) Electricity at work regulatory requirements. b) EU Directive requirements. c) Requirements as prescribed in British standards. K47. Effective management of record systems including: a) Integrity of records. b) Security of records. c) Safety of personnel. d) Programmed maintenance. e) Current status database for persons engaged in the design, operation and maintenance activities. f) Historical data bank of fault analysis and comparative analysis of test results. g) Accurate information on the location of underground cables. K48. Requirements for keeping records of occupational competence. K49. Requirements for record retention and availability. K50. The format and media to be used for retaining electrical and instrumentation records. K51. The categories of instrumentation and electrical site records to be kept including: a) Installation records. b) Service records. c) Portable equipment records. K52. The importance of common naming conventions to enable accurate record identification. K53. The requirements for maintaining current status records and the ease of availability to view. K54. The responsibilities for the provision of records. K55. The requirements for the approval of the technical content of design and construction records. K56. The requirements for the approval of the technical content of as built and operational records. K57. The requirements for the updating of master records. K58. The requirements for the specification of the content of records. K59. The timescales to be met for the availability of new and modified records. K60. The procedure to be followed for reporting errors in records which require minor modifications to be made. K61. The requirements for the operational review of records. Energy & Utility Skills Group Page 12

13 Gas Network Electrical Module Operational Site Familiarisation GNEM3 This module should be designed to provide a general understanding of gas operational sites and the equipment used on such sites What does this specification look like? This module should be designed to provide the trainee with a general understanding of the types of operational site, the typical systems used and equipment encountered on these sites. It should include an overview of the modes of operation of the various types of equipment and the procedures to be followed and methods to be used to operate / isolate / maintain and test such equipment in line with company procedures. A written assessment should be completed towards the end of the training. It is anticipated that the minimum duration for this training and assessment is 1 day. What do I need to take this module? There are no pre-requisites to completing this module. Knowledge and understanding To achieve this unit, you will need to understand the following: K1. The different types of site including; Terminals, Compressor stations, off takes and above ground installations (AGi s). K2. The safety and procedural requirements required for accessing these sites. K3. Operational site general safety instructions. K4. The PPE required when operating on these sites. K5. The common hazards encountered on sites. K6. DSEAR requirements - potentially hazardous areas. K7. Interpretation of drawings and plans to identify hazardous areas. K8. The types of equipment commonly found on these sites. K9. The basic operating principles of the equipment on these sites. K10. Common faults and problems associated with this equipment. K11. Interpretation of drawings and plans to identify varying types of equipment on site. K12. General requirements of the MAINT 11 procedures. K13. The requirements for the generation and updating of records, when maintaining plant and equipment. Energy & Utility Skills Group Page 13

14 Performance Criteria To achieve this unit you will need to complete practical assessment on the following: P1. Using drawings and plans to identify hazardous areas. P2. Using drawings and plans to identify varying types of equipment on site. Energy & Utility Skills Group Page 14

15 Gas Network Electrical Module Site Working Practices GNEM4 This module should be designed to provide a demonstration of the practical application of the requirements of the Electricity at Work Regulations and how the gas networks comply with these requirements through their company procedures. What does this specification look like? Appropriately skilled and experienced staff must deliver the training and assessment. The training will provide practical application of Gas Distribution Network Procedures PM/EL/7 Procedures for Compliance with the Electricity at Work Regulations, PM/EL/6 Electricity Safety Rules and Authorisation & PM/EL/13 Earthing requirements. The training should be delivered using both multi media and practical examples. The candidate should be afforded the opportunity to complete the practical aspects under the supervision of the Trainer. A written assessment must be completed during the training. It is anticipated that the minimum duration for this training and assessment is 1 day. What do I need to take this module? Prior to undertaking this module the candidate must have successfully completed statutory and company requirements (GNEM2). Knowledge and understanding To achieve this unit, you will need to understand the following: K1. The Electricity at Work regulations 1989 relevant to the operations of a gas distribution network (PM/EL/7). K2. The IET 17 th edition wiring regulations. K3. The requirements of the Electrical safety rules / Authorisations (PM/EL/6). K4. The dangers of electricity. K5. The types of protection used on electrical systems. K6. The procedures for working on dead electrical systems. K7. The procedures for working on live electrical systems. K8. The inspection requirements for portable appliances. Energy & Utility Skills Group Page 15

16 Performance Criteria To achieve this unit you will need to complete practical assessment on the following: Demonstrate the correct use of Permits to work following the procedure for safe isolation and de-isolation P1. Make the request for a permit to work in line with procedures. P2. Complete the relevant parts of the permit to work and obtain the required authorisation. P3. Isolate the electrical circuit and secure using an appropriate lock and attach the correct warning label. P4. Select the appropriate test instrument and complete a zero voltage test, the instrument used must be proved before and after the test. P5. Record the result of the Zero voltage test on the permit to work. P6. Obtain approval to proceed with the works, once received commence the works. P7. Conduct appropriate electrical and or instrumentation tests after ensuring appropriate safeguards are in place. P8. Inspect the apparatus and environment in which it is installed to identify and record five Visual faults. P9. Produce a report of the faults identified and detail the necessary remedial action to return the installation back to the correct specification. P10. Clear the work area and prepare the installation for live testing. P11. Obtain authorisation for de-isolation. P12. Confirm de-isolation is completed. P13. Obtain cancellation of the permit to work. P14. Update records accordingly. The identification, testing and inspection of earthing systems P15. Identify differing types of earthing systems used on operational sites. P16. Inspect the earthing system and environment in which it is installed to identify and record any Visual faults. P17. Produce a report of the faults identified and carry out the necessary remedial action to return the installation back to the correct specification. P18. Conduct appropriate tests to ensure the earthing system is returned to the correct specification, ensuring appropriate safeguards are in place. P19. Update records accordingly. Energy & Utility Skills Group Page 16

17 Gas Network Electrical Module Portable Appliance Testing GNEM5 This module should be designed to provide an understanding of the regulatory requirements for portable appliance testing and practical demonstration of how such tests are undertaken in accordance with legislation and company procedures. What does this specification look like? In a commercial environment, regulations insist that every item of electrical equipment is tested and certified as being safe to use. The training should be delivered using both multi media and practical examples. The candidate should be afforded the opportunity to complete the practical aspects under the supervision of the Trainer. A written assessment must be completed during the training; this may be an on-line examination. It is anticipated that the duration for this training and assessment is 1 2 days this being dependent on the existing skill sets of the trainee. What do I need to take this module? Previous electrical experience is desired, but not essential. Knowledge and understanding To achieve this unit, you will need to understand the following: K1. General electrical safety requirements. K2. Relevant electrical regulations (IET 17 th Edition) and specified company procedures. K3. The responsibilities of both individuals and organisation s who complete these tests. K4. The basic theory of electrical circuits. K5. The interpretation of electrical drawings. K6. The requirements for insulation and earthing. K7. The classification of appliances. K8. How to complete a preliminary inspection of electrical equipment. K9. The test precautions to be observed. K10. The appropriate test instruments and how they are used. K11. The safe operation of a portable appliance tester. K12. The essential tests to be completed. K13. The labeling requirements. K14. The methodology for recording and reporting test results. K15. The categories, frequency and practicalities of PAT testing. K16. The procedures to be followed, documentation to be used and other user responsibilities. Energy & Utility Skills Group Page 17

18 Performance Criteria To achieve this unit you will need to complete practical assessment on the following: P1. A preliminary inspection of electrical equipment prior to commencing a test. P2. Demonstrating the test precautions to be observed. P3. Selection of appropriate test instruments, ensuring they are safe to use. P4. The safe operation of a portable appliance tester. P5. The satisfactory completion of the essential tests. P6. The appropriate labeling requirements are applied following the test. P7. The recording and reporting of the test results. Energy & Utility Skills Group Page 18

19 Gas Network Electrical Module Plant Operator Training GNEM6 This module is designed for non-electrical persons who use electrical equipment on operations sites. What does this specification look like? This module should be designed to provide an understanding on the use and limitations of electrical systems and equipment on operational sites. This should allow persons to operate electrical equipment in a safe manner with a good understanding of the potential hazards that could be encountered. A written assessment should be completed as part of this training. What do I need to take this module? Trainees should be aware of the safety requirement for entering and operational sites. No other pre-requisites are required. Knowledge and understanding To achieve this unit, you will need to understand the following: K1. The levels of authorisation and the scope of restricted authorisation. K2. The key requirements of IEE and electricity at work regulations. K3. The principles of electrical safety. K4. The safe operation of electrical systems and their safe isolation. K5. An Introduction to Hazardous area classification (DSEAR SR25). K6. How to identify hazardous areas. K7. The limitations of operating in hazardous areas. K8. How to perform atmosphere tests to determine the presence of flammable gases. K9. How to interpret the gas readings detected and take action as appropriate. K10. Describe the operation and siting requirements of emergency generators. K11. The requirements for the supply and maintenance of antifreeze. K12. The requirements for lighting systems. K13. The requirements for heating systems. Energy & Utility Skills Group Page 19

20 Gas Network Electrical Module GNEM7 This module is designed for both electrical and instrumentation persons to give a broad understanding of all legislation, company policies and procedures relevant to their role. Completion of this module should provide suitable evidence of a general understanding of these areas and could be used as part of a competency based submission for safe control of operations registration. What does this specification look like? This is a theory based training course; the normative documents used could be either legislative, industry standard, based on company procedures or approved codes of practice. A written assessment should be completed as part of this training; it is recommended that this assessment has questions on each subject area described in the knowledge criteria. Where a certificate is awarded for successful completion, it is recommended that the certificate shows the title of each topic area delivered. What do I need to take this module? There are no pre-requisites required for attendance at this training. Knowledge and understanding To achieve this unit, you will need to understand the following: Legislation K1. The requirements of The Health and Safety at Work act. K2. The requirements of the Provision and Use of Work Equipment Regulations. K3. The requirements of the Construction (Design and Management) Regulations. K4. The requirements of the Display Screen Equipment Regulations. K5. The purpose of the Gas Act and the requirements it places on all parties. K6. The requirements of the Gas Safety (Management) Regulations. K7. The requirements of the ATEX directive. K8. The requirements of the Dangerous Substance Explosive Atmospheres Regulations. K9. The requirements of the Electricity at Work regulation. K10. The requirements of the Low Voltage Directive. K11. The requirements of the Electromagnetic Compatibility Directive. K12. The requirements of any HSE Guidance notes relating to the above. Industry standards K13. The requirements of all relevant EN and BSi standards. K14. The requirements of relevant IGEM Standards (SR25). K15. The principles of Hazardous area zoning. Energy & Utility Skills Group Page 20

21 Company specific procedures K16. The requirements of PM/EL/3, the selection, protection, maintenance and operation of electrically operated portable and transportable, tools, equipment and associated appliances. K17. The requirements of PM/EL/4, the inspection and testing of fixed electrical systems and equipment. K18. The requirements of PM/EL/12 maintaining the integrity of electrical systems and equipment. K19. The requirements of PM/INS/2 maintaining the integrity of instrumentation systems and equipment. K20. The requirements of PM/G/17 (incorporating PR/EL/14) new works, modifications and repairs. K21. The requirements of PM/EL/16 the audit requirements for Electrical and instrumentation systems and equipment. K22. The requirements of company specific hazardous area procedures. K23. The requirements of company specific risk assessment procedures. Energy & Utility Skills Group Page 21

22 Supervision Control and Data Acquisition and Telemetry systems GNIM1 This module is designed to deliver an understanding of supervision, control and data acquisition systems and telemetry systems, is designed to provide engineers and technicians with the basic theoretical and practical understanding of these systems together with an overview of modern digital communication standards and networks. The training should also include the use of radio links, ranging from application through to fault diagnosis, and the use and selection of wireless link devices. What does this specification look like? The training is suitable for both novice and experienced engineers and technicians, it should provide an insight into modern control and data acquisition systems and digital communication principles. The training should be designed to allow trainees to learn through active participation using exercises, questionnaires, and practical simulation and demonstrations. A written assessment should be completed as part of this training. What do I need to take this module? There are no pre-requisites required for attendance at this training although previous knowledge would be advantageous. Knowledge and understanding To achieve this unit, you will need to understand the following: K1. The basic principles of data communications. K2. The different components of a supervision control and data acquisition system. K3. The use of wireless communications in the gas industry. K4. The wireless communication standards as used in the UK gas industry. K5. The operation and optimization of gas industry plant and equipment through supervision, control and data acquisition and telemetry systems. K6. The instrumentation, remote terminal units and networking equipment (routers) used within the gas industry to provide supervision, control and data acquisition and telemetry systems. K7. The numbering systems used to include both binary and hexadecimal. K8. The hardware and software architecture of these systems. K9. The functionality and alarm handling capability and requirements. K10. The communication media used including cabling, fibre optics (wired) and radio wireless. Energy & Utility Skills Group Page 22

23 K11. Serial data communications standards and requirements. K12. The requirements for error detection. K13. The principles of HART Protocol. K14. The principles of Modbus Protocol. K15. Instrumentation including; block diagram, sensors, electronics, power considerations, configuration and security modifications. K16. The methodologies to be followed for the installation, maintenance and fault finding activities. K17. the operation and use of transmitters. K18. The system architecture to include; gas control (GNCC and DNCC), supervisory control, programmable logic controllers, distributed control systems, sensors & actuators, communication links and channels and alarms. K19. Telemetry requirements including; wireless links, elements of a radio link, the radio spectrum and frequency allocation, IEEE Wireless standards. K20. The commonly encountered telemetry devices on the UK Gas Network. Performance Criteria To achieve this unit you will need to complete practical training on the following: P1. The installation of components and communication systems. P2. Fault diagnosis/validation checks on components. P3. Fault diagnosis/validation checks on communication media including wired and wireless. Energy & Utility Skills Group Page 23

24 Metering and Process variables GNIM2 This module is designed to provide an understanding of the differing types of flow metering systems and the process variables to be considered throughout the UK gas distribution and transmission systems. The training will provide information on the design, installation and maintenance of such systems. What does this specification look like? This training is a modular approach and should start through the introduction to the principles of pressure measurement, then flow measurement including the different types of metering systems used, then focus on temperature measurement, followed by level detection. The training should be designed to allow trainees to learn through active participation using exercises, questionnaires, and practical simulation and demonstrations. Both written and practical assessment should be included as part of this training. What do I need to take this module? There are no pre-requisites required for attendance at this training although trainees should be aware of the requirements when working in hazardous areas and the requirements for safe working on operational sites. Pressure Measurement This should include the various types of pressure measurement devices, and detailed understanding of maintenance, and fault finding procedures. Flow Measurement This should include the various types of flow measurement devices, and detailed understanding of maintenance, and fault finding procedures. Temperature Measurement This should include the various types of temperature measurement devices, and detailed understanding of maintenance, and fault finding procedures. Level Detection This should include the various types of level detection measurement devices, and detailed understanding of maintenance, and fault finding procedures. Energy & Utility Skills Group Page 24

25 Knowledge and understanding To achieve this unit, you will need to understand the following: Pressure Measurement K1. What is the definition of pressure and the differing bands used in the gas industry operates. K2. The available methods of pressure measurement. K3. The types of mechanical instruments used to measure pressure. K4. The types of electronic devices used to measure and monitor pressure. K5. The use of differential pressure in relation to flow measurement. K6. The different types of pressure and differential pressure transmitters. K7. The operation and measurement principles of a pressure switch/ differential pressure switch. K8. The operation and measurement principles of pressure and differential pressure gauge. K9. The calibration and maintenance requirements of pressure measurement / monitoring devices. K10. The typical faults found with a range of pressure measurement devices. K11. The company procedures relevant to pressure measurement. Flow Measurement K12. The legislation, policies, procedures and specifications that relate to flow measurement. K13. The fundamentals, principles and applications of flow measurement in the gas industry. K14. The types, operation and application of flow measurement devices found in the UK gas industry including; Pitot, annubar, orifice plates, dall tube, elbow meters, turbine meters, rotary displacement meters, vortex shedding meters and ultrasonic meters K15. The application of the ideal gas laws. K16. How to complete flow calculation exercises. K17. The calibration and maintenance requirements of flow measurement devices. K18. The typical faults found with a range of flow measurement devices. Temperature Measurement K19. The legislation, policies, procedures and specifications that relate to temperature measurement. K20. The requirement for temperature measurement. K21. The application of temperature measurement in the gas industry. K22. The types, operation and application of temperature measurement devices including; Filled systems liquid in steel, the different types of thermocouples, resistance devices, 3 & 4 wire devices, temperature switches and thermal imaging. K23. The impact that ambient conditions may have on temperature measurement devices. K24. The calibration equipment to be used on the differing measurement devices. Energy & Utility Skills Group Page 25

26 Level Detection K25. The legislation, policies, procedures and specifications that relate to level detection. K26. The requirement for level detection. K27. The applications of level detection in the gas industry. K28. The types, operation and application of level detection including; basic float devices, sight glass, ultrasonic devices, radar devices, conductance systems, hydrostatic systems, tuning fork devices. K29. The maintenance requirements of level detection systems. Performance Criteria To achieve this unit you will need to complete practical training on the following: Pressure Measurement P1. Identify a range of pressure and differential pressure gauges. P2. Identify pressure and differential pressure transmitters, and explain their operation P3. Perform the calibration of bourdon tube gauge. P4. Perform maintenance activities on a range of pressure measurement equipment in line with company procedures. P5. Diagnose faults on pressure measurement equipment. Flow Measurement P6. Complete a flow calculation exercise. P7. Perform maintenance activities on a flow measurement device/meter. P8. Diagnose faults on flow measurement equipment. P9. Remove and replace an orifice plate. Temperature Measurement P10. Complete manual calculations of temperature measurement P11. Demonstrate the use calibration equipment that automatically calculates injection signals. P12. Describe/recognise measurement problems and errors caused by ambient conditions. P13. Complete a maintenance inspection on temperature measurement equipment. P14. Use the appropriate calibration equipment to undertake a series of checks and calibrations on temperature measurement equipment. P15. Identify and remedy faults on temperature measurement equipment. Level Detection Demonstrate the use calibration equipment that automatically calculates injection signals. P16. Describe/recognise measurement problems and errors caused by ambient conditions. P17. Complete a maintenance inspection on temperature measurement equipment. P18. Use the appropriate calibration equipment to undertake a series of checks and calibrations on temperature measurement equipment. P19. Identify and remedy faults on temperature measurement equipment. Energy & Utility Skills Group Page 26

27 Flow Weighted Average CV GNIM3 This module is designed as a gas quality course that covers the theory of chromatography, theory of operation of various gas analysers, detailed overview of Daniels danalyser and associated equipment maintenance requirements, faults and alarms. What does this specification look like? This training should start with an introduction to gas chromatography, understanding the constituents of Natural gas, the legal requirements for the accurate measurement of the energy value of natural gas and the safety reasons for measuring the energy value of natural gas. Both written and practical assessment should be included as part of this training. What do I need to take this module? There are no pre-requisites required for attendance at this training although trainees should be aware of the requirements when working in hazardous areas and the requirements for safe working on operational sites. Knowledge and understanding To achieve this unit, you will need to understand the following: K1. Understand the reasons for measuring gas quality. K2. Recognise the constituents of natural gas. K3. Understand the principles of chromatography. K4. Understand how gas quality is determined. K5. Describe the hardware used to determine gas quality measurement. K6. Understand OFGEM requirements for the measurement and testing of gas samples. K7. Understand the storage and handling requirements of test gas cylinders. K8. Understand the storage and handling of carrier gas cylinders. K9. Understand the operation of the Danalyser. K10. Understand the operation of the Adams Unit. K11. Understand the operation of the 2350 controller. K12. Understand the operation of DANVIEW software. K13. Understand the operation of MON2000 software. K14. Understand the relationship between Metering and FWACV. K15. Understand the Maintenance requirements for FWACV equipment. K16. Understand the safety requirements for the changing of gas cylinders. K17. Describe monthly checks. K18. Recognise the system alarms and understands what they mean. K19. Describe typical faults found on FWACV equipment. Energy & Utility Skills Group Page 27