Year: 2023 Language: English Author: IOGP Genre: Reference book Publisher: IOGP Format: PDF Quality: eBook Pages count: 72 Description: Discover the recommended practices that can assist with the management of oxy-arc underwater cutting. Underwater oxy-arc cutting, also commonly referred to as “burning” has been utilized extensively in the underwater diving environment. The frequency of diver fatalities, injuries, incidents, and asset damage occurring while using this process continues to be unacceptably high within the global diving industry. Divers engaged in burning need to be competent in the task. This Recommended Practice has been developed to assist with the management of this activity and provide control measures, guidance and processes to ensure the safe execution of this technique.
Contents
1. Introduction 6 2. Mitigate risk by using alternative cutting methods 7 2.1 Saws 7 2.2 Shears 7 2.3 Arc water gouging 8 2.4 Thermal cutting techniques that use no oxygen 8 2.5 Plasma arc cutting 8 2.6 Water jet cutting 8 2.7 Chain feed cutters 8 2.8 Orbital pipe cutters 9 2.9 Casing cutters 9 2.10 Hydraulic hand tools 9 3. Roles, responsibilities and operational control 10 3.1 The client 10 3.2 The diving contractor 11 3.3 Client on-site representatives 11 3.4 Dive supervisor 12 3.5 Divers 13 3.6 Dive support crew 14 4. Equipment selection 15 4.1 Welding power source 15 4.2 Safety switch or circuit breaker 17 4.3 Burning leads or burning umbilical 19 4.4 Ground leads 21 4.5 Wire (cable) splices, connectors, and terminations 22 4.6 Continuity check 23 4.7 Oxygen 23 4.8 Oxygen hose 23 4.9 Oxygen regulators 24 4.10 Oxygen pressure 24 4.11 Torches or electrode holders 25 5. Consumables 26 5.1 Tubular steel 26 5.2 Exothermic 27 6. Pre-job considerations 28 7. On-site considerations and the burning operation 29 8. Proper venting 30 9. Diver’s PPE 32 10. Training and experience requirements 33 10.1 Training course providers 33 10.2 Course contents, material and facility requirements 33 10.3 Class sizes 34 10.4 Specification for instructors 34 Level 1 and Refresher Training Instructor Qualifications 34 10.5 Specification for diver and supervisor training 35 10.5.1 Oxygen-arc cutting curriculum for Level 1 Beginner and Refresher Training Courses 35 10.5.2 Level 1 Beginner Oxy-arc Burning Course recommendations and suggested schedule 37 10.5.3 Refresher Training Course (top-up) recommendations and suggested schedule 37 10.5.4 Specification for diving supervisor training 38 10.6 Maintaining competency level and experience 38 10.7 Grandfathering and Recognition of Prior Experience (RPE) 38 10.8 Performance proficiency criteria 39 Level 1 – Beginner Oxy-arc Burner 39 Level 2 – Intermediate Oxy-arc Burner 39 Level 3 – Advanced Oxy-arc Burner 40 11. Oxy-arc cutting risks and mitigation (a commentary section) 42 Appendix A: Checklists for oxy-arc operations 43 Client Diving Representative oxy-arc cutting checklist 43 Diving contractor oxy-arc checklist 44 Appendix B: IOGP oxy-arc cutting training course assessment checklist 52 Bibliography 70
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Oxy-arc underwater cutting recommended practice - IOGP [2023].pdf
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Oxy-arc underwater cutting recommended practice
Language: English
Author: IOGP
Genre: Reference book
Publisher: IOGP
Format: PDF
Quality: eBook
Pages count: 72
Description: Discover the recommended practices that can assist with the management of oxy-arc underwater cutting.
Underwater oxy-arc cutting, also commonly referred to as “burning” has been utilized extensively in the underwater diving environment. The frequency of diver fatalities, injuries, incidents, and asset damage occurring while using this process continues to be unacceptably high within the global diving industry. Divers engaged in burning need to be competent in the task. This Recommended Practice has been developed to assist with the management of this activity and provide control measures, guidance and processes to ensure the safe execution of this technique.
Contents
1. Introduction 62. Mitigate risk by using alternative cutting methods 7
2.1 Saws 7
2.2 Shears 7
2.3 Arc water gouging 8
2.4 Thermal cutting techniques that use no oxygen 8
2.5 Plasma arc cutting 8
2.6 Water jet cutting 8
2.7 Chain feed cutters 8
2.8 Orbital pipe cutters 9
2.9 Casing cutters 9
2.10 Hydraulic hand tools 9
3. Roles, responsibilities and operational control 10
3.1 The client 10
3.2 The diving contractor 11
3.3 Client on-site representatives 11
3.4 Dive supervisor 12
3.5 Divers 13
3.6 Dive support crew 14
4. Equipment selection 15
4.1 Welding power source 15
4.2 Safety switch or circuit breaker 17
4.3 Burning leads or burning umbilical 19
4.4 Ground leads 21
4.5 Wire (cable) splices, connectors, and terminations 22
4.6 Continuity check 23
4.7 Oxygen 23
4.8 Oxygen hose 23
4.9 Oxygen regulators 24
4.10 Oxygen pressure 24
4.11 Torches or electrode holders 25
5. Consumables 26
5.1 Tubular steel 26
5.2 Exothermic 27
6. Pre-job considerations 28
7. On-site considerations and the burning operation 29
8. Proper venting 30
9. Diver’s PPE 32
10. Training and experience requirements 33
10.1 Training course providers 33
10.2 Course contents, material and facility requirements 33
10.3 Class sizes 34
10.4 Specification for instructors 34
Level 1 and Refresher Training Instructor Qualifications 34
10.5 Specification for diver and supervisor training 35
10.5.1 Oxygen-arc cutting curriculum for Level 1 Beginner and Refresher Training Courses 35
10.5.2 Level 1 Beginner Oxy-arc Burning Course recommendations and suggested schedule 37
10.5.3 Refresher Training Course (top-up) recommendations and suggested schedule 37
10.5.4 Specification for diving supervisor training 38
10.6 Maintaining competency level and experience 38
10.7 Grandfathering and Recognition of Prior Experience (RPE) 38
10.8 Performance proficiency criteria 39
Level 1 – Beginner Oxy-arc Burner 39
Level 2 – Intermediate Oxy-arc Burner 39
Level 3 – Advanced Oxy-arc Burner 40
11. Oxy-arc cutting risks and mitigation (a commentary section) 42
Appendix A: Checklists for oxy-arc operations 43
Client Diving Representative oxy-arc cutting checklist 43
Diving contractor oxy-arc checklist 44
Appendix B: IOGP oxy-arc cutting training course assessment checklist 52
Bibliography 70
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Oxy-arc underwater cutting recommended practice - IOGP [2023].pdf
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