MANCHETT FACILITIES. Risk Assessment and Method Statement. T42 25 Old Broad Street, London EC2N 1HQ

Transcription

1 MANCHETT FACILITIES Document Scope Risk Assessment and Method Statement To clean all assessable external glazing via rope access Document Number 001 Document Date Site Address Prepared By Client 22/08/2017 T42 25 Old Broad Street, London EC2N 1HQ Doc Revision 01 Manchett Facilities The Tack Room, Lorkins Farm, Conways Road, RM16 3EL Tel: Onyx Services Document History Revision Dated Author Modification Details 01 KB & JM 1

2 DOCUMENT CONTENTS Section: Page No Scope of work Activity 1 Contents 2 Risk Matrix 3 Health, Safety & Environmental Risk Assessment 4 Health, Safety & Environmental Method Assessment 5 Various Anchor Points Applicable Legislation & Best Practice Guidance 9 Critical Recognized Hazards 10 Job Planning Site Safety Checklist Work Task Toolbox Talks Work Positioning & Safety Lines 17 Rope Access over the edge 18 Method of Work 19 Add Photos 20 Rope access process and sequence 21 Welfare and Rest 22 IRATA Guidance 23 Work at Height Rescue Plan Monitoring Arrangements 32 Emergency Procedures 33 Equipment Risk Assessment 34 Manual Handling Assessment 35 Manual Handling Control Measures 36 COSHH & Environmental Assessment 37 Staff Briefing Sheet Sign off 38 Page 2 of 38

3 Risk Matrix A.1 Table Severity Low 2 Low 3 Low 4 Low 5 Low 2 2 Low 4 Low 6 Low 8 Medium 10 Medium 3 3 Low 6 Low 9 Medium 12 Medium 15 High 4 4 Low 8 Medium 12 Medium 16 High 20 High 5 5 Low 10 Medium 15 High 20 High 25 High Key Likelihood 1. Highly unlikely to occur 1. Minor injury, no time off work 2. Possibility remote but has occurred 2. Injury resulting in up to three days of work 3. Very infrequently 3. Injury resulting in more than seven days off work 4. Occasionally 4. Major disabling injury 5. Frequently and regularly 5. Fatality Severity Table A.2 Recommendations for actions following results in Table A.1 Risk value result in Table A.1 Recommended action to Reduce Severity of Harm and Risk of Injury Occurring Low (1 to 6) May be acceptable; however, review the task to see if the risk can be reduced further. Medium (8 to 12) Where possible, the task should be redefined to take account of the hazards involved or the risk should be reduced further, prior to task commencement. Appropriate management authorization after consultation with specialist personnel and an assessment team may be required. High (15 to 25) Unacceptable. The task should be redefined or further control measures put in place to reduce the risk. The controls should be re-assessed for adequacy, prior to task commencement. Page 3 of 38 Manchett Facilities, The Tack Room, Lorkins Farm, Conways Road, Orsett, Grays, Essex, RM16 3EL

4 HEALTH, SAFETY & ENVIRONMENTAL RISK ASSESSMENT Job No: 001 Job Title: External Window cleaning via Rope Access Dated:22/08/2017 Prepared By: Kenneth Benmore & James Manchett, Summary of Assessment To replace float switch in condense tank under the supervision of site maintenance Ref No: T42/MFRA/002 Doc Rev Date: August 2018 Hazards Identified Who Could Be Affected and How Harmed Likelihood Severity Risk 1. Falls from height (abseiling) Operatives may be harmed by falling and others below the height may suffer severe Injury s to the head or any part of body, possibly death caused by impact from falling person x 5 = 15 High 2. Falls from height (Lift shaft access) Operatives may be harmed by falling and others below the height may suffer severe Injury s to the head or any part of body, possibly death caused by impact from falling person x 5 = 15 High 3. Items falling (tools & equipment) 4. Slips, trips and falls (from same level) 5. Manual Handling (ropes and weights) Structures, staff or public below the height. Injury to any part of body, possibly death caused by impact of falling items. 3 5 Operative or staff may suffer injuries, fractures, or bruising if they slip on wet surfaces or trip over objects. 3 3 Fatigue and strain, long term injuries to body caused by over lifting, stretching or overreaching when handling, lifting loads x 5 = 15 High 3 x 3 = 9 Med 3 x 3 = 9 Med 6. Adverse weather Operatives may suffer severe injuries possibly death, poor work conditions caused by ice, rain, slippery surfaces, poor lighting, and cold temperatures. 7. Pedestrians & third parties (at work areas) Injuries to the public, or persons not involved. Possible damage to vehicles or plant at pedestrian locations such as pavements and road ways and car park areas when loading and un loading van Fire & emergency s Operatives may be at risk of failure to escape during fire or during and emergency evacuation. 1 5 Control Arrangements for Hazards Identified 1. All Work at Height planned, organized, appropriately supervised at all times by the L3 IRATA trained supervisor. Operatives to check they have the correct PPE for the task. Safety harness worn & deployment of twin rope access system as per IRATA code of practice. All equipment inspected before use by competent person (Level 3 IRATA Technician). Rope Anchorage to - unquestionable primary anchorage points to the steel structure. All ropes that have contact with the building edges will be protected by using a material double canvas rope protector attached to ropes with a lanyard to prevent them from falling. Safe system of work developed and followed, Refer to Method Statement T42/MFMS/001 Rev 01 Pages 5 to All Work at Height planned, organized, appropriately supervised at all times by the L3 supervisor. Operatives to follow the designated safe walkway when walking to the work area. Always use the man safe system if near open edge. Operatives are instructed not to approach a leading edge unless attached to an anchor point. 3. Safe working zone with physical barriers & warning signage setup at ground floor level, which clearly indicate the work at height area and that unauthorized people are unable to reach it. Operatives visually check and monitor for others entering the work zone. Competent operatives selected for work at height tasks. Handheld equipment tethered to operator at all times when working at height. 4. Check the route to be taken, remove any obstructions. Report hazards to Supervisor or Client. Level 3 Supervisor to run through the job planning, work site check list and work task toolbox talk before commencement of works. All members of the team are to confirm acceptance of these checks. 5. Competent operatives appointed to undertake manual handling activities. Basic manual handling training given to operatives. Loads broken down into manageable sizes, team lifting techniques applied. 6. Weather forecast check by supervisor before commencement of tasks, Work not to commence in deteriorating conditions. See Method Statement T42/MFMS/001 Page Pedestrians have right of way to paved areas Works planned and managed to prevent interface with building staff, the public and others at the site boundary. Refer to Method Statement T42/MFMS/001 Rev 01 Pages 7 and 8 8. Communication must be in place between building management and Supervisor, exchange telephone numbers or alternatively if a portable 2-way radio is available the supervisor can sign out and take position. Building fire and evacuation procedure & alarm system made aware to all staff before work starts. 2 x 5 = 10 Med 2 x 5 = 10 Med 1 x 5 = 5 Low Residual Risk Low Low Low Low Low Low Low Low Review: 22/08/2017 Next Review Date: August 2018 The control arrangements used will be reviewed daily by the L3 IRATA trained Supervisor and Team Leaders if the working method or equipment changes and fall outside of the scope of this Risk Assessment. L3 Supervisor to Review at Each Site Visit.

5 Page 4 of 35 Job No: 001 HEALTH, SAFETY & ENVIRONMENTAL METHOD STATEMENT Job Title: Replace float switch in free standing condense tank Date: 22/08/2017 Ref No: T42/MFMS/001 Scope - Work Activity To access the top of the condense tank using a fall arrest system rigged to steel structure Work Location Level 22 plant room Work Time & Frequency The works will take place at a frequency as requested by the client. Personnel Involved & Supervision Required Training Required James Manchett Level 3 IRATA Trained Technical Advisor Jack Diprose Supervisor. (M) Aaron Henning Cleaning Technician Plant & Equipment Rope Access PPE IRATA - Level 3 Rope Access Technician - First aider. IRATA - Level 1 Rope Access Technician First aider Certification / Standards Required 1. Work Positioning Harnesses. 2. Lanyards fall restraint line. 3. I D Descender Rig Descender or Stop Descender. 4. Descender Devices for rescue 5. Absorbica L57 5. Karabiners. 6. Tape Slings. 7. Wire Rope Slings 8. Low Stretch Rope. 9. Cow s tail. 10. Ascenders. 11. Backup Devices (Rope Clamp) ASAP / Duck Back up 12. Helmet. 13. Maillon Rapides. 14. Working Seat. 15. Pulley Single/Twin. 16. Webbing Foot Loop / Tape Attached to Hand Jammer for Ascending or Aid Climbing. 17. Rope protectors to stop ropes bearing / rubbing on the building structures, CAUSING ABRASION. 18. High Visibility Vest 19. Safety footwear 20. Eye protection / Spectacles 21. Gloves 22. Uniform / workwear 1. EN EN EN EN EN EN 353-2:2002. EN 2841:2006 EN362 connector 4. EN Types A & B 5. EN1 2841:2006 Class A 6. EN EN 566 EN EN Type B 9. Kernmantel pro Static 11mm CE-EN1891 Type A. 10. BS EN 892:2012 A EN EN Type B 12. EN EN Type A 13. EN Class C EN EN 136 EN EN Number not required 16. EN EN Number not required 18. EN Number not required 19. EN Class EN EN 166 1B 34N 22. EN 388 Rope Access Equipment Choice is Based on The Individuals Achieved Training Skills for the Equipment Use. The Most Appropriate Rope Access Equipment Selection Is Supervised by the IRATA Level 3 Supervisor. Materials Involved Supplied By Supplied by site maintenance team Manchett Facilities Ltd. Page 5 of 38 Manchett Facilities, The Tack Room, Lorkins Farm, Conways Road, Orsett, Grays, Essex, RM16 3EL

6 Various Anchor Points All persons engaged in industrial rope access techniques must have two independent Points of attachment, this may be achieved by using two strops around a beam Whilst aid climbing or with the use of an anchor system whilst abseiling. These Should be arranged so that in the event of one point of attachment failing the technician Remains protected by the other point of attachment and cannot suffer a fall. Typical arrangements of anchor system include: Basic Anchor System Small Y-Hang Wide Y Hang Re-anchor Deviation Pull Through Work restraint/ horizontal lifelines Vertical fall arrest lines Tensioned ropes Releasable anchors The ability to build a basic anchor system and a small Y-hang are skills required at All levels. Levels 2 and 3 are required to have a knowledge of more advanced rigging Systems. Whatever type of system is rigged consideration must be given to avoiding sharp, Hot or abrasive surfaces. Where these cannot be avoided adequate rope protection Must be installed. This rope protection must be resilient enough to comfortably control the hazard. All rope access technicians' should have an understanding of the angles of rigging And how the internal angle of a Y-hang affects the forces transferred to the anchor Points. The preferred angle of rigging a Y-hang is 90 or less. The maximum angle of normal rigging is 120. At this angle all the forces in the System are equal. Above 120 and there is more force on the anchor points than there is suspended On the rope. Accurate calculations are required when rigging using large angles. a) General arrangement Key 1 Anchor b) Preferred maximum angle 2 Y angle 3 Anchor line 4 Load c) Loading at 120 d) Loading at 150

7 Abseil Eyebolts Anchors are used via their anchor point(s) for the attachment of anchor lines (i.e. the working line and the safety line) to the structure or natural feature and also for other purposes, e.g. to reposition the anchor lines to avoid abrasion; to alter the direction of the anchor lines (deviation anchors); to maintain the anchor lines in their intended position; for the attachment of persons, either directly or indirectly. Anchors are fitted to anchorages at an anchorage point, i.e. the particular place on the anchorage used for the attachment of the anchor device. There are many different types of anchors. Examples are: eye bolts; anchor slings; specially designed rail anchor systems (which typically are permanently fitted around the perimeter of the roof of a building so that attachment can be made anywhere along them); ground anchor stakes (fixed into the ground); deadweight anchors; counterweight anchors; beam clamps. Examples of anchorages are: structures made from steel beams; lift-shaft housings on tower blocks; sound concrete and natural geological features such as a rock face or a tree. Anchors and anchorages should be unquestionably reliable. It is essential that great care is taken when selecting anchor devices that they are appropriate to the situation in which they are fitted or to be fitted and used, e.g. that they are the correct type of anchor device for the given situation and that they are positioned and fitted correctly. It is also essential that anchor devices are fitted, tested, inspected and used by competent persons and strictly in accordance with manufacturer s instructions. The selection of anchors largely depends on whether anchors such as appropriate eyebolts could be fitted or are already in place and in the correct place, and whether opportunities exist to use other types of anchor, e.g. anchor slings fitted around the structure. Anchors should be of an adequate strength, bearing in mind the mass of the user including any equipment worn or carried. Portable Systems Where installation of abseiling anchors are not possible we can supply and install a free standing portable system, this is a weighted anchor that sits directly on the roof surface. A-Frame Davit Arm Dead Weight Trolley Abseil Rails Abseil Rails are usually installed with carriages that allow left and right movement. The carriages are fitted with two points for attaching both a working rope and safety (Back-up) rope. The Abseil Rail and carriages are inspected and tested following the guidelines of LOLER (Lifting Operations and Lifting Equipment Regulations) 1998 and BS EN 788 Page 7 of 38 Manchett Facilities, The Tack Room, Lorkins Farm, Conways Road, Orsett, Grays, Essex, RM16 3EL

8 Building and fixed steel structure It is recommended that structures or natural features to be used for installation or placement of anchor devices are assessed by an engineer, unless it is clear to a competent person that the structure or natural feature is adequately stable and strong. An example of where an engineer might not be required is where an anchor sling of the correct capacity is secured around a solid permanent structure such as a plant room or large steel beam. If any doubt exists about the adequacy of the structure or natural feature, an engineer should make the assessment. The engineer should certify in writing that all combinations of loads in a worst-case situation can be safely withstood by the proposed structure or natural feature, bearing in mind that dynamic loads, e.g. under fall-arrest conditions, can be considerably higher than the static or quasi-static loads imposed by the rope access technician during normal rope access activities. Example of the use of anchor slings Steel structure Always ensure full work position restraint and man safe system is in test date before you use the system. Fall Arrest vs. Fall Restraint.... When a system provides fall arrest, it protects the worker who is already in the process of falling by stopping the fall after it has happened. When a system provides fall restraint, it is preventing the worker from accessing the potential hazard

9 Safety of Third Parties The safety of third parties, with particular consideration of the all other site staff and general public will be considered before commencement of all tasks, to ensure the protection of others in accordance with the Health and Safety at Work etc. Act All access and egress routes will be kept clear at all times. Taskforce site supervisor and team leaders will ensure no temporary storage or non-attendance of any plant or equipment outside of our work zone at any time during equipment or material movement activities. Applicable Legislation: Health and Safety at Work etc. Act Construction (Design and Management) Regulations 2015 (CDM 2015). Management of Health and Safety at Work Regulations 1999 (as amended). Work at Height Regulations 2005 (as amended). Workplace (Health, Safety and Welfare) Regulations 1992 (as amended). Manual Handling Operations Regulations 1992 (as amended). Provision and Use of Work Equipment Regulations 1998 (PUWER). Lifting operations and Lifting Equipment Regulations 1998 (LOLER) Personal Protective Equipment at Work Regulations 1992 (as amended). Health and Safety (First Aid) Regulations 1981 (as amended). Control of Substances Hazardous to Health Regulations 2002 (COSHH as amended). Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013 (RIDDOR). Applicable Best Practice Guidance: All Rope Access tasks are to be undertaken in accordance with; The Industrial Rope Access Trade Association (IRATA International) Code of Practice (July 2014 Issue). British Standard Code of Practice BS 7985: 2013: The use of rope access methods for industrial purposes. BS ISO : 2003 Personal equipment for protection against falls Rope access systems Part 1 Fundamental principles for a system of work. BS ISO : 2012 Personal equipment for protection against falls Rope access systems part 2 Code of Practice. EN 795: 2012, Personal fall protection equipment Anchor devices. BS 7883: 2005 Code of practice for the design, selection, installation, use and maintenance of anchor devices conforming to BS EN 795. IRATA ROPE ACCESS OPERATIONS PROCEDURES MF 002 Accident/Incident Investigation MF 003 Equipment Defective Report MF 007 Rope Access Hours Record Form MF 008 Site Safety Checklist Form MF 009 Work Task Tool Box Talk Form MF 010 Job Plan & Pre-Mobilisation Form MF 012 Site Supervisor Reporting Form MF 013 Operative Reporting Form MF 017 Approved Equipment List MF 019 Foreseeable Misuse Risk Assess MF 021 Equipment Inspection Log Page 9 of 38

10 Critical Recognized Hazards Rope Access Work. Key Points: No operative will approach any roof edge or put themselves in a position of danger without first having attached themselves by harness and restraint lanyard connection to; The harness wire system at roof level or; both their working and safety lines to Rope Access Anchor Points. Rope Access Technicians are trained to IRATA Standards, with a minimum of one Level 3 on site at all times. Rope Anchorage to unquestionable primary anchorage points on steel structure consisting mainly of steel structure in plant room Ropes may be deviated for work positioning, all rigging and deviation set-up in accordance with IRATA Guidelines and always under the supervision of Level 3 supervisor. Protection of Staff and other contractors & Others. The works are planned to be carried out when site staff / public interface Operatives to be aware of narrowing areas above the condense tank. Dynamic Risk Management Techniques may be applied before the commencement of any tasks by the IRATA Level 3 Supervisor, on the day of the planned works. Physical Barriers with Warning signage forming an exclusion zone shall be placed at plant room Floor Level, and managed to prevent others entering work areas below the abseiling activity. Rope Access Techniques Work in a team (in suspension) of two at all times, always in visual contact with each other. Deployment of twin rope access system as per method statement and current IRATA code of practice. Use certificated equipment, competent personnel. Work Equipment to be stored in a secure area when not in use. All abseiling and PPE equipment to be checked, daily checks including buddy checks and LOLER certification checks made, before commencing any work or tasks in accordance with IRATA code of practice. No abseil to take place where the leading edge or surface is fragile. Vulnerable areas, ground floor plant room areas, will be cordoned off using barriers and barrier tape with warning signage, restricted access only to plant rooms. The level 3 supervisor will run through the pre- mobilization job planning. The level 3 supervisor will read through the site safety checklist and carry out a toolbox talk ensuring that all members of the team have understood the clear instruction given. All members of the team must confirm acceptance of these checks. All members of the team must ensure all documents are signed and dated. The Level 3 IRATA supervisor to secure the rigging area on entry to it prevent unauthorized access. The Level 3 IRATA Supervisor responsible for ensuring Anchorage equipment is within inspection date under LOLER. Page 10 of 38

11 Job planning for Rope Access Operations Name: Date / job length: Client details: Site and company details T42 Level 22 plant room condense tank 1 day Onyx Services Nick Fisher Mobile Details of task being undertaken Location (include type of structure/ cliff and location of task on it) Height; Replace float switch Level 22 plant room 9m- 12m Brief description of work Access method (e.g. straight drop, aid, tensioned lines) Communication methods/ emergency contact details Permit to work requirements Structure or substrate used for anchors (Inc. min. strength requirements) Equipment used to connect to structure or substrate (Inc. any test requirements) Describe the plan to access the worksite Describe the plan to evacuate the worksite (Inc. in an emergency) Tensioned lines Mobile phone / verbal contact with operatives Yes Steel Structure Anchor selection Rigging & emergency planning (attach sketch if applicable) Describe the plan to rescue incapacitated technicians Rigging requirements (e.g. detail rig-torescue system if used, or rigging method & rescue kit) Team size & levels required Role and location of technicians Emergency equipment required Hazards identified on or near to path of ropes Hazard identification, avoidance and rope protection Method used to protect technicians against identified hazards Page 11 of 38

12 Method used to protect ropes against identified hazards Additional equipment required Exclusion zone requirements Dropped object control measures Equipment / materials required for exclusion zone, lanyards etc.. Other personnel certification requirements Task specific requirements Other equipment, materials and/ or plant required for task Safe handling precautions for tools and materials Acceptance by work team of the work method and the rescue plan Name IRATA number Signature For guidance when completing this document, use IRATA ICOP IRATA Safety bulletins Equipment manufacturer s user instructions Page 12 of 38

13 Site Safety Checklist IRATA Level 3 Site safety supervisor Site Location and Name: T42 Level 22 plant room Date: Work task details: Replace float switch in condense tank Team Members & Levels L3 L1 Signatures Required of all team members to confirm acceptance of these checks Name: James Manchett L3 Signature: Name: Jack Diprose L3 Signature: Name: Aaron Henning L1 Signature: Attached Diagrams of rigging requirements, rescue plan and rig for rescue techniques if required On the day amendments to risk assessment & Method Statement required YES / NO Details of amendment Amendments confirmed to head office and client Notes: ( As appropriate) Adverse weather (e.g. wind/ rain) Rescue Plan agreed Risk Assessment & Method Statement Pre-use equipment check/buddy check Rescue Kit Anchors checked Access / Egress Rigged for rescue Small Y hang Sentry required Haul rescue Basic Rig Fall Arrest Lower rescue Rig over 2 meters Aid Climbing / Vertical / Horizontal Snatch rescue Knots in end of ropes Page 13 of 38

14 Signal Deviation Tension line rescue Tools on Lanyards Double Deviation Rope transfer rescue Exclusion zone Re belay Frist Aid kit Security Measures Knot bypass Emergency Contacts MFS & Client Communication devises Rope path clear Permit to work Complete Safety Signage Rigging checks complete All personnel briefed Adequate rope length Rescue boat Working over water Life jacket or buoyancy device Other Hazards This isn t a exhaustive list if you identify a hazard which is not on this checklist please make sure you include on the day Risk Assessment revision details and communicate the necessary control measures required to head office and the client Do not just ignore it! Remember Safety is everyone s priority WORK TASK TOOLBOX TALK IRATA Level 3 Site safety supervisor: Site Title: T42 Task: REPLACE FLOAT SWITCH IN CONDENSE TANK LEVEL 22 Date: Risk Assessment Number: T42/MFRA/002 Method Statement Number: T42/MFMS/001 Rescue Plan Number: Signature: Date: All contents discussed in this tool box talk must be understood by all team members and thoroughly explained by the level 3 site safety supervisor: All team members must sign this form to confirm receipt of the tool box talk: Page 14 of 38

15 Tool box talk items (supervisor to tick once covered) Risk Assessment control measures: Method Statement Detail including access method: Rigging Plan: Rescue Plan: T42/MFRP/004 Sharp Edge, hot surface and rope protection measures: Roles and Reasonability s: First Aid Measures: Task specific work tools: Exclusion zones: Environmental Conditions: Work site Security: Per use checks: Communication Methods: Non-rope access site emergency plan i.e. (fire etc.) Emergency Contact list / out of Hours contact: Name: Signed: Date: Name: Signed: Date: Page 15 of 38

16 Name: Signed: Date: Supervisors Signature: Roof Permit & Access Key Control: All operatives will sign in at the building security control room, and sign out at end of each working day. The client s in-house safe system of work and any roof permit requirements will be strictly followed. Permits will be closed out at the end of each working shift. Page 16 of 38

17 Typical Work Positioning and Safety Lines Typical IRATA Technique for Descending Typical IRATA Technique for Ascending Working position Key 1 Working line 5 Descending device 2 Safety line 6 Harness 3 Device lanyard 7 Tool tether 4 Back-up device Buddy Check A moment of inattention, an instant of fatigue, excessive confidence: moments of absence in which one can quickly forget to make a knot in the end of the rope, lock a carabiner, finish the tie-in knot...oversights that often pass without notice until the day an accident happens... To help avoid this, one can adopt a simple habit, the Buddy Check: Page 17 of 38

18 Rope Access - Ropes Rigged Over an Edge: Essential Safety Measures: It is essential that, wherever possible, contact of anchor lines with edges is totally avoided. It is critical that, where risk assessment identifies the risk of contact of anchor lines with an edge, the following hierarchy is followed: Anchor lines must be rigged in such a manner so as to prevent them from coming into contact with any edge. When rigging or deviating anchor lines to prevent contact with edges, reference should be made to the IRATA ICOP**, to Whenever edge avoidance by rigging or deviation is not possible, risk control measures must be validated by a comprehensive on-site risk assessment. Where edge avoidance by rigging or deviation is not possible suitable edge protection in conjunction with rope (anchor line) protectors must be used. Reference should be made to the IRATA ICOP, , and to Consideration should be given during the entire rope access operation to the possibility of changes of position of the anchor lines and what effect this might have on the safety of the operatives, e.g. a lateral movement of the anchor lines outside the intended range that could result in contact with an edge. Edge Protection: Where it is not possible to use any of the methods described in the above and, where the risk assessment identifies that there is ANY possibility of anchor lines coming into contact with an edge, the edge should be covered with suitable protective material. The following gives some examples of ways in which anchor lines can be protected against edges. Protective edge roller or plate: An edge roller or plate is an option for protecting the anchor lines from cutting (or abrading) on an edge. It is usually placed over the edge and secured to the structure and the anchor lines are run over the bearing wheel or plate. Protective edge matting: This method utilizes a mat or other thick, tough material, which is placed over the edge and secured to the structure. Double-layer canvas rope protector: A double-layer rope protector only provides limited protection to the anchor lines from edges when anchor line movement is perpendicular to the edge. When anchor line movement is transverse along an edge, the protection afforded by a canvas rope protector can be negligible, and catastrophic failure can occur in a very short period of time to the main working line and to the safety line during any subsequent fall, if both anchor lines are rigged over the same edge. Line Protectors: Anchor line protectors may be used when rigging techniques such as the use of deviations or re-anchors are not possible or appropriate. Heavy duty carpet (with natural fibre content, such as wool) or canvas padding can offer good protection and are commonly used. A single thickness might not be adequate on sharp edges. Anchor line protectors made from polyvinyl chloride (PVC) coated textiles should be avoided due to potential heat caused by friction, which causes the PVC to melt. The anchor line protection must ensure the radius of any bend is at least twice the diameter of the anchor line. Selection criteria for anchor line protectors must include suitability for the particular site conditions. Page 18 of 38

19 Work Method To replace float switch in condense tank at level 22 plant room Access & Egress and Equipment Set-Up Procedures: The team will arrive on site at approximately 07:00 and sign in with security The building fire and emergency arrangements including evacuation and muster point location will be made aware to all Manchett cleaning staff. All equipment inspections will be undertaken at ground floor level, and buddy checks at plant room level. The site welfare and toilet facilities will be made available. A contact number of the cleaning supervisor will be left with Security or building management. The level 3 IRATA Trained Supervisor for Manchett Facilities will be James Manchett Mobile number is ( ) Company vehicle will be offloaded at the car park area and vehicle parked (arrangements must be made with the site management office to arrange for parking) The level 3 supervisor will go through the job planning, work site check list & work task toolbox talk with all members of the team ensuring that the team all confirm acceptance of all checks before entering the works area. work task. Rope access equipment will be manually taken to the internal lift to 23rd floor, and transported down 1 floor to 22 nd floor plant room, key to access plant room door is required from security. Follow safe designated area to work area. The work involves working from the unquestionably sound Steel work going into the building determined by the level 3. The operatives will need to use the harness wire system as a restraint to access the top side of the free standing condense tank, do not disconnect until you are connected to both ropes. Place ropes into rope protectors and secure in place. The work sequence will be assessed and decisions made by the Level 3 Technician, following agreement with the abseil team and site maintenance Warning signage will be setup at floor areas, to prevent the others entering work areas below the height. Barriers / barrier tape in narrow areas and warning signage will be monitored, but entry into plant room will be restricted access only. At the top of the tank - No operative will approach the edge or put themselves in a position of danger without first having attached themselves to both their working and safety lines prior to committing to a vertical environment. Rope Anchorage will be to - unquestionable primary anchorage points to steel structure. The Level 3 IRATA team leader will inspect all anchorage points thorough visual examination as part of a pre-start inspection, if any parts look damaged or unworthy they will not be used as rope anchorage points. Thorough inspection of each anchor points to be inspected and checked by Level 3 Rope Access Technician, or team leaders, before rigging commences. All abseiling and PPE equipment to be checked, daily checks and LOLER certification checks made, before commencing any works or tasks. All pre-use checks of all personal PPE equipment will be carried out at the set-up area at level 22 plant room Technicians will don full rope access PPE, and carry out visual checks of each other s equipment prior to committing to a vertical environment. The team leader will again supervise the inspection of all rope connections to anchorage points. Team leader will authorize and control ascend down to the old float switch in the condense tank and undo under supervision of site maintenance team Operatives will make themselves aware of any protruding obstacles (example sharp edges on tank, entrapment of ropes and equipment on high level pipes etc. Ropes Lengths are to be tensioned to use as a fall restraint system Anchor Safety and Working lines must be configured so that rope access technicians cannot inadvertently descend off the end of them. Where any line is free hanging, a simple stopper knot must be made, after the knot has been set, the length of the tail should be at least 300mm. Page 19 of 38

20 Use bottom of the tank legs for anchorage of safety lines 2. Stay within the confines of the rail at the top of the tank, from here rig a fall restraint safety line from side to side. 3. Set up zone to carry out buddy checks and secure fall restraint systems Ladder for access to the top of the condense tank 5. Check the scaff tag is in date on the ladder 6. Operatives to be aware of grease or grime that maybe on the ladder and top section of the tank, ensure to wipe clean before climbing ladder 7. Top side of the water tank Page 20 of 38

21 Rope Access Work Process & Sequence: The works sequence will be deemed by each individual elevation vertical glazing set, across all floor levels Safe anchorage, Structural Steel Work will be by connection of 2 wire strops or slings per technician through the anchorage point, use of two karabiners for the attachment of 2 low stretch mm Kernmantel ropes with each rope loading shared between the two points of anchorage. The ropes have a static load of 2800kg each. These are a working line and safety backup line. The technician will be connected separately to both ropes (of an appropriate length to reach plant room floor level), by means of ascending or descending devices and /or safety devices e.g. gravity brake, all of which are designed and approved for industrial rope access operations. The maximum angle between the anchors will be between 0 to 90 degrees. Adequate rope protection such as rope protector wrapped around ropes to protect them from building steel work in plant room Technicians will have 1 metre dynamic rope lanyards, conforming to EN892 with percent elongation with 80kg dynamic load, which will be connected to the Petzl shunt attached to the backup line, this to be kept above technicians head during decent mode. This will ensure a 0 fall factor if main working line fails. All equipment shall be attached to the technicians at all times via tethered lanyards to prevent items being dropped. The technicians will descend down the building and descend at a controlled rate, they will place rope protectors as required on any protruding edges. The technicians will land on pavements within the site boundary for all rope access decent drops. The technicians will exchange the float switch under the instruction of the site maintenance team work method as follows: The level 3 IRATA trained supervisor will rig a set of ropes from the base of the condense tank tower and a tensioned back up line at the top to use as fall restraint towards the top of the tower. Operatives to climb the fixed ladder to the side of the tank and stay in the designated area at the top until line is secure. Site maintenance team will give the rope access operative the tools and equipment to exchange the float switch. Operative will be attached to two rigging points, to prevent any fall into tank. Line 1 will be rigged to steel support legs to get the operative safely into position at the top of the tank. Line 2 will be rigged to rescue if operative one gets into trouble the backup line will be deployed with 2 nd operative to rescue When in position the operative will unscrew the old float, switch using hand tools supplied by others, place into pouch or pass up to engineer, Replace with new float switch and tighten back up, test switch is working before dismantling ropes and equipment. All equipment & tools will be tethered using hand lanyards at all times when working at height. Regular sufficient rest breaks must be taken between tasks the supervisor to advise on the day. Fall Arrest vs. Fall Restraint.... When a system provides fall arrest, it protects the worker who is already in the process of falling by stopping the fall after it has happened. When a system provides fall restraint, it is preventing the worker from accessing the potential hazard Due to the very nature of work at height, no technician should have asked to work if he is exhausted or even slightly tiered, which could be detrimental to him performing his Rope Access tasks safely. Emergency rescue capabilities must also be considered, when working repeated long shifts, together with the individual performance requirement to undertake safe rescue. Page 21 of 38

22 Welfare & Rest Periods In accordance with: British Standard BS 7985: Code of practice for the use of rope access methods for industrial purposes; In calculating rest periods for operatives, consideration should be given to the effects of adverse climatic conditions. In accordance with: IRATA International code of practice for industrial rope access (July 2014); Rope access technicians require adequate facilities where they can rest in the dry, protected from cold or heat, and where they can obtain fresh water, store any additional clothing and be able to wash. They should also be provided with, or have access to, adequate toilet facilities. In calculating the length of shifts and rest periods for rope access technicians, consideration should be given to the effects of adverse climatic conditions and/or difficult or very exposed worksites, because these can affect efficiency and tiredness levels. Working in high and exposed places is likely to subject the rope access technician to factors such as wind chill or buffeting by the wind, which can have a significate effect in output at even quite moderate wind speeds. Similarly, work in high temperatures can result in heat exhaustion or fainting. Working short shifts minimizes risks to workers in such environments. The nature of the work equipment to be used should also be taken into account when calculating the length of shifts and rest periods, to prevent unacceptable discomfort or tiredness of the rope access technician, which could affect his safety. Only an IRATA Level 3 Rope Access Supervisor will calculate the climatic conditions and may need to take into account other effects such as wind tunnelling, high and low air temperatures and surrounding structures and other local environment factors. After consultation with the Rope Access team under his control, the Rope Access Supervisor may suspend works. Sufficient rest breaks must be taken between Rope Access methods, descents, accents and all activities. Due to the very nature of work at height, no technician should asked to work if he is exhausted or even slightly tiered, which could be detrimental to him performing his Rope Access tasks safely. Emergency rescue capabilities must also be considered, when working repeated long shifts, together with the individual performance requirement to undertake safe rescue. Wind Speed Working Time Limitation Meters per second (m/s) MPH Hours (a) (a) Acceptable for emergency work only The table above provides an example of how different wind speeds can affect working times when at working at height. These times are likely to vary considerably, depending on the factors such as the surrounding air temperature, the height above ground and the precise nature of the worksite. In accordance with BS 5975:2008+A1: Refers to maximum wind speed during working conditions can take place as being normally limited to wind force of six (6) on the Beaufort wind force scale. This corresponds between 10.9 m/s and 13.8 m/s. An IRATA Level 3 Rope Access Supervisor has ultimate responsibility for his rope access team and he is in a position to override any person or guidance if he decides such factors may affect the safety of anyone. Page 22 of 38

23 Rope Access Rescue IRATA Guidance The main priority in any rescue is to ensure that the condition of the casualty does not worsen. Following this it is essential to have a back-up system, and increase friction on the descender device to allow for the additional rescue load. If the rescue scenario is particularly complicated, then a practice rescue should be carried out to ensure the proposed rescue method can be successfully completed within an acceptable time span. Rescue equipment, including a suitable First Aid kit, should accompany all operational rope access teams. This will include sufficient equipment to rescue a technician from any of the rope access situations in which he may be operating. It is essential to ensure that enough competent team members are available to assist. If identified - that the casualty s position cannot be reached by the rescuer, or that the time required setting up and implementing a rescue would prove too lengthy, then a Rig For Rescue system should be pre-rigged before work commences to allow safe and timely access and egress of the work site. Before any rescue is implemented it is important that the IRATA Level 3 Safety Supervisor assesses the situation, attempts to communicate with the assumed casualty to ascertain his/her condition and determines whether or not a rescue is necessary. The rescue team s orders of priorities are to: 1. Ensure the rescuers do not endanger themselves whilst carrying out the rescue. 2. Provide appropriate First Aid Treatment & Prevent further injury to the casualty. 3. Evacuate the casualty to a safe location where suitably qualified persons can administer effective treatment. Casualty management must be constantly addressed throughout the rescue, with the rescuer taking sufficient steps so as not to worsen any injury sustained by the casualty. The IRATA Level 3 Safety Supervisor must hold a current Emergency First Aid at Work certificate. Where the location of the work is deemed to be an extreme location, where the evacuation of a casualty could take hours instead of minutes then additional first aid training or emergency cover may be required. In all other rescue situations, systems utilizing the effects of Gravity should be implemented in order to lower the casualty to a safe position where effective first aid treatment can be administered by a suitably competent person or the emergency ambulance services. NOTES: The following examples use the casualty s own ropes; however, the same rescues can be completed from a separate set of rescue ropes. Page 23 of 38

24 Document: Issue: 1 Work at Height Rescue Plan for Level 22 plant room, Condense tank Introduction When operatives are suspended in mid-air after a fall, their lives hang in the balance - even if they have survived the fall without a scratch. Every second counts. The intention of this guidance is to help you fully understand the implications of an operative falling, being arrested and then suspended by a harness, which initially saves them, but minutes later may kill them due to suspension trauma. More than just helping to understand why this happens, this guidance will show what action should be taken to prevent a fallen operative dying from suspension trauma. It will also clearly outline the current law with which must be complied with to discharge our legal responsibility. How Soon to Death or Serious Injury? Harnesses can become deadly whenever an operative is suspended for durations of over five minutes in an upright posture with the legs relaxed straight beneath the body. After five minutes, they are highly likely to be unconscious - but operatives attending the scene may not realize the seriousness of the situation and, 15 minutes later a dead body could be hauled up. The cause of this problem is called 'suspension trauma'. In March 2004, OSHA (US equivalent of the UK Health and Safety Executive) issued a health and safety bulletin outlining the dangers of prolonged, upright suspension. The bulletin warned of the risk of "orthostatic intolerance" and "suspension trauma" and refers to some of the potential health hazards - death being the chief one - experienced by operatives who are suspended upright by fall arrest equipment after a fall. Suspension Trauma Orthostatic Intolerance Unless the operative is rescued promptly using established safe procedures, suspension trauma caused by orthostatic intolerance could occur and result in serious or fatal injury as the brain, kidneys and other organs are deprived of oxygen. Most users of fall protection equipment are unaware of the hazard of suspension trauma. Venous pooling - The need to faint and fall over Death from suspension trauma is caused by orthostatic intolerance and is the result of venous pooling. This can occur any time a person is required to stand still for prolonged periods and may be worsened by heat and dehydration. Major blood vessels pass through the muscles in the legs. The movement of these muscles assists circulation by squeezing the blood back up towards the heart. If the muscles stop moving, gravity pulls the blood down into the legs. Eventually, enough blood accumulates (venous pooling) so that return blood flow to the right chamber of the heart is reduced as the heart can only pump the blood available, so its output begins to fall. The heart then speeds up to maintain sufficient blood flow to the brain but, if the blood supply to the heart is restricted enough, the higher pulse and faster breathing is ineffective and the body abruptly slows the heart. The result is fainting. The moment a person loses consciousness they collapse and become horizontal so the time spent in a vertical position while unconscious is minimal and, as blood flow improves - the result of being horizontal - the person returns to consciousness and recovery is likely to be rapid. When a person is suspended in a harness in which their legs are immobile, unlike fainting, the person does not or cannot naturally move into a horizontal position, then gravity pulls blood into the lower legs. In a harness, the operative can't fall into a horizontal posture, so the reduced heart rate causes the brain's blood supply to fall below the critical level. During excessive venous pooling, cardiac output and arterial pressure fall to levels, which can critically reduce the quantity and/or the quality of oxygenated blood flowing to the brain. Three things that occur which aggravate the problem: 1 - The operative is suspended in an upright posture with legs dangling. 2 - the safety harness straps exert pressure on leg veins (femoral arteries), compressing them and Reducing blood flow back to the heart. 3 - the harness keeps the operative in an upright position, regardless of loss of consciousness Loss of consciousness assures that a suspended person will not be moving their limbs; so venous pooling will increase which will in turn reduce the circulating blood volume even further. This includes not only a potentially fatal reduced blood flow to the brain, but also the other vital organs, such as the kidneys. The kidneys are highly sensitive to blood oxygen levels and renal failure as a result of excessive venous pooling is a real possibility. Injuries suffered during the fall, or the shock resulting from the experience of the fall, can increase the onset and severity of venous pooling and orthostatic intolerance, as can physical and environmental factors such as fatigue, dehydration, hypothermia, cardiovascular disease, respiratory disease and blood loss. The time spent in an unmoving suspended position, with the legs below the heart, is what kills. Page 24 of 38

25 The Need for a Rescue Plan Operatives face considerable danger after a fall, through the lack of a thought-out, detailed and fully implemented rescue plan. It is now a legal requirement of the Work at Height Regulations 2005 to have a rescue plan. The best rescue strategy is to take every possible precaution to prevent operatives from falling in the first place. But the reality is that falls happen, and a rescue plan is an essential component of manchett facilities overall fall protection method statement and risk assessment. The lack of any form of a pre-conceived post-fall rescue plan not only puts the fall victim at risk but also puts rescuers in harm's way. Whenever there are unplanned attempts to rescue, second or third injuries or fatalities may not be uncommon. Critical Phases of Rescue The responsibility to have a post-fall rescue system in place lies with MFS as the employer, below are the four critical phases of rescuing a suspended operative: 1. Before the fall 2. At fall arrest 3. Suspension 4. Post-fall rescue Each phase presents unique safety challenges. Suspension trauma can be influenced by all aspects of the fall, so they are all equally important. As with many aspects of safety, increasing the safety in one phase can compromise safety in the others. Whatever training operatives have received will determine how they respond to different phases. 1. before the fall The key issue of fall protection prior to a fall is compliance. If a harness is too uncomfortable, too inconvenient or interferes too much with task completion, operatives may not use the equipment or may modify it (illegally) to make it more tolerable. A second major point is how far an operative fall before his fall is arrested. The greater the fall, the greater the stress on the body when the fall is arrested. The longer the lanyard the longer the fall distance, however, the shorter the lanyard, the more often it will have to be repositioned when operatives are mobile. Restraint lifelines are the preferred method of working because it allows maximum flexibility. Working in restraint prevents the operative from falling, yet should a fall occur the arrest distance is kept to a minimum (limited fall). 2. At fall arrest The whole concept of fall protection is that operatives who fall will be stopped by a tethering system. Unfortunately, the posture of the falling operative is unpredictable. Depending on the harness attachment point and the position of the operative's body at fall arrest, different harness attachments offer different advantages. An attachment near the shoulders means that any drag from the lanyard will serve to position the operative's body in an upright position so the forces are distributed from head to foot. The head is somewhat protected if the legs and body precede it in the fall, but this offers some disadvantages after the fall arrest is completed 3. Suspension It is natural to assume that once a fall has been arrested then the fall protection system has successfully completed its job. Unfortunately, this is not the case. An operative suspended in an upright position with the legs dangling in a harness of any type is subject to suspension trauma and orthostatic intolerance. Fall victims can slow the onset of suspension trauma by pushing down vigorously with the legs, by positioning their body in a slight leg-high position or, by standing up. Harness design and fall injuries may prevent these actions. 4. Rescue Rescue must come rapidly to minimise the dangers of suspension trauma. The circumstances together with the lanyard attachment point will determine the possibility of self-rescue. In situations where self-rescue is not possible, operatives must be supervised at all times. Regardless of whether an operative can self-rescue or must rely on others, time is of the essence because an operative may lose consciousness in only a few minutes. For conscious casualties, it is recommended (where possible) that the suspended person keep their legs moving to keep the blood pumping and reduce the risk of venous pooling. Death by Rescue - "Toxic Shock" If an operative is suspended long enough to lose consciousness, rescue personnel must be careful in handling such a person or the rescued operative may die. The blood which has pooled in the legs is prevented from collecting oxygen from the lungs and becomes stale, as it is starved of oxygen, then becomes loaded with carbon dioxide and is contaminated with toxins, the result of the body's metabolizing processes. If the casualty is laid down during the rescue, the stale blood rushes back to the heart and vital organs. This rush of de-oxygenated and toxic blood can cause death by heart attack or, a few days later, of organ failure. Current recommended procedures following a rescue are to keep the casualty in a knees-bent 'W' sitting position for 30 to 40 minutes before moving the casualty to a lying down horizontal position. This action partially closes the femoral artery allowing any pooling of blood to be slowly released back towards the heart. The blood is then able to be reprocessed, preventing orthostatic and toxic shock. Page 25 of 38