HSE: Industrial rope access - investigation into items of personal ...

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4.4 WORK POSITIONING A combination of hand ascender and descender were used to ascend the rope: a not unusual work positioning technique. Forces were similar to those produced by normal ascent but slightly wider ranging: from 0.30 kN to 1.10 kN. Force (kN) 1.2 1 0.8 0.6 0.4 0.2 0 0 10 20 30 40 50 60 Time (seconds) Figure 17 Graph showing forces generated when ascending using a combination of ascender and descender The sequence of climbing was the same as in Figure 15, Ascending, except that a hand ascender was not used. In this case the footloop was attached to a descender and to move this upwards the slack rope was pulled through the descender. 25
4.5 WORKING The technician remained at one point on the rope, around 5 m below the anchor, and performed a variety of simple work operations. Again, average forces were 0.75 kN, with values ranging from 0.45 kN to 1.00 kN. Force (kN) 1.2 1 0.8 0.6 0.4 0.2 0 0 10 20 30 40 50 60 70 Time (seconds) Figure 18 Graph showing forces generated whilst working at a single point 26
Page 1 and 2: HSE Health & Safety Executive Indus
Page 3 and 4: © Crown copyright 2001 Application
Page 5 and 6: 8.6 PETZL “ABSORBICA”..........
Page 7 and 8: 1.2 AIMS, OBJECTIVES AND SCOPE 1.2.
Page 9 and 10: 1.4.3 Verification For the tests to
Page 12 and 13: 2.1 INTRODUCTION 2 ROPES Ropes are
Page 14 and 15: The ropes are all fundamentally of
Page 16 and 17: 3.1 INTRODUCTION 3 KNOTS Terminatio
Page 18 and 19: Unlike the double overhand and doub
Page 20 and 21: It is unique in that it can be easi
Page 22 and 23: On most of the tests with low-stret
Page 24 and 25: Strength kN 26 24 22 20 18 16 14 12
Page 26 and 27: 3.4.2 Bird droppings Sections of ro
Page 28 and 29: 4.1 INTRODUCTION 4 ANCHOR FORCES Th
Page 32 and 33: 4.6 RIGGING The technician remained
Page 34 and 35: 5.1 INTRODUCTION 5 ROPE PROTECTORS
Page 36 and 37: 5.7 COMPRESSED AIR FLEXIBLE HOSE PI
Page 38: Another point to recognise is that
Page 41 and 42: The IRATA Guidelines state that the
Page 43 and 44: Devices certified to BS EN 567 10 (
Page 45 and 46: In practice this type of test is us
Page 47 and 48: • Minimum static strength (sectio
Page 49 and 50: 6.2.5 Komet Stick Run Material: Ste
Page 51 and 52: 6.2.7 Petzl Rescucender Material: A
Page 53 and 54: 6.2.9 SSE Stop & Go Material: Alumi
Page 55 and 56: In the dynamic tests it did not per
Page 57 and 58: 6.2.13 Summary of test performances
Page 59 and 60: 6.3 TYPE B - ASCENDER DEVICES Figur
Page 61 and 62: 6.3.1 Camp Pilot Material: Aluminiu
Page 63 and 64: 6.3.3 Petzl Ascension Material: Alu
Page 65 and 66: 6.3.5 Kong Cam Clean Material: Alum
Page 67 and 68: 6.3.7 Summary At present, most of t
Page 69 and 70: 6.4.2 Tests All devices underwent f
Page 71 and 72: The following table summarises the
Page 73 and 74: 6.4.3 AML Material: Aluminium Weigh
Page 75 and 76: Performance in use: In use the devi
Page 77 and 78: Clockwise rotation of the handle tu
Page 79 and 80: Test performance: The static tests
Page 81 and 82:
6.4.8 Troll Allp Material: Aluminiu
Page 83 and 84:
Secondly, the bolt can first be adj
Page 85 and 86:
Material Dynamic rope Low stretch r
Page 88 and 89:
8.1 INTRODUCTION 8 LANYARDS (FALL A
Page 90 and 91:
8.3 BH SALA Length 2 m Principle Te
Page 92 and 93:
8.6 PETZL “ABSORBICA” Length 0.
Page 94:
Description: The Spanset lanyard co
Page 97 and 98:
9.3 BACHMANN KNOT Figure 55 Bachman
Page 99 and 100:
9.5 FRENCH PRUSIK Figure 57 French
Page 101 and 102:
9.7 PRUSIK KNOT Figure 59 Prusik kn
Page 104 and 105:
11 FUTURE WORK This study has highl
Page 106 and 107:
12 APPENDICES 101
Page 108 and 109:
12.1 APPENDIX 1 PERSONNEL INVOLVED
Page 110 and 111:
12.2 APPENDIX 2 QUESTIONNAIRE - SUM
Page 112 and 113:
12.2.3 Hardware ratings Respondents
Page 114 and 115:
12.2.5 Rope Protectors Table 14 Que
Page 116 and 117:
12.3 APPENDIX 3 ROPE ABRASION Table
Page 118 and 119:
12.4 APPENDIX 4 TEST MACHINES, LOCA
Page 120 and 121:
12.4.4 Rope protectors cycling a lo
Page 122 and 123:
Method for minimum static strength
Page 124 and 125:
12.4.7 Lanyards • Static tests Te
Page 126 and 127:
12.5 APPENDIX 5 ABRASION TESTS: REC
Page 128 and 129:
I. Concrete edge, Lyon canvas prote
Page 130 and 131:
N. Steel edge, PVC “rope bag” (
Page 132 and 133:
T. Paving slab, roll module Start 1
Page 134 and 135:
12.6 APPENDIX 6 KNOTS - STRENGTH TE
Page 136 and 137:
Knot Table 21 Marlow 10.5mm rope (l
Page 138 and 139:
12.7 APPENDIX 7 LANYARDS - STATIC T
Page 140 and 141:
12.8 APPENDIX 8 TYPE A BACK-UP DEVI
Page 142 and 143:
12.9 APPENDIX 9 TYPE A BACK-UP DEVI
Page 144 and 145:
Device & rope type Rope brand SSE S
Page 146 and 147:
12.10 APPENDIX 10 TYPE A BACK-UP DE
Page 148 and 149:
12.11 APPENDIX 11 TYPE B DEVICES -
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
12.14 APPENDIX 14 TYPE C DEVICES- D
Page 156 and 157:
12.15 APPENDIX 15 TYPE C DEVICES -
Page 158 and 159:
12.16 APPENDIX 16 TYPE C DEVICES -
Page 160 and 161:
12.17 APPENDIX 17 LANYARD - DYNAMIC
Page 162 and 163:
12.18 APPENDIX 18 PRUSIK KNOTS Bach
Page 164 and 165:
French prusik Main rope Brand type
Page 166:
CRR 364 ISBN 0-7176-2091-3 £20.00
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