WILLIAM HARE LIMITED CELLSHIELD LIMITED HEALTH AND SAFETY DEPARTMENT

Transcription

1 WILLIAM HARE LIMITED CELLSHIELD LIMITED HEALTH AND SAFETY DEPARTMENT BASIC INSTRUCTION MANUAL FOR CELLSHIELD 2 SAFETY BARRIER SYSTEM WI 72 Written by Approved by Signature Date B Hughes B Hughes Full Document Review Page 1 of 8

2 BASIC INSTRUCTION MANUAL FOR CELLSHIELD 2 SAFETY BARRIER SYSTEM This work instruction is to ensure that all operations related to the installation, inspection, adjustment, maintenance, handover and removal of the Cellshield 2 safety barrier system are carried out correctly. It is a legal requirement under the Construction (Design and Management) Regulations 2007 and the Work at Height Regulations 2005 that all edge protection is inspected by a competent person. There are two elements to the Cellshield 2 A three tube hand rail system with no gap greater than 470mm at any time during construction. A mesh panel system that incorporates a built in toe board and is adjustable in height to allow access, whilst maintaining the triple rail system at all times. There are also half length panels to accommodate risers and corners, etc. Cellshield 2 can be used with the triple hand rail alone where installing metal decking. However a working floor for follow-on trades is only created when a toe-board is put in place. This is created by either the installation of the deck edge trim or the installation of the Cellshield 2 panel. This prevents materials or equipment from being inadvertently kicked off the floor edge. The Cellshield 2 panel in made from mesh and incorporates a toe-board. It sits on the inside line of the triple rail system on brackets on the standards. Note: The panel must not be used without the triple hand rail in position. The requirements when fitting Cellshield 2 are as follows: 1.0. Prior to Installation 1) All operatives must attend a Toolbox training talk before working to install or dismantle the Cellshield 2 safety barrier system. All operatives must endorse the instruction form attached to the back of this document. Records should be maintained by site management with a scanned copy returned to Cellshield Initial Installation 1) Inspect each component prior to installing to ensure in good order. In particular ensure that grub screws run freely. If they do not run freely then the thread must be re-tapped. 2) Check that the pots on the beams are clear of any debris/obstructions. There is a pin across each pot approximately 65mm down from the top of the pot. 3) The standards are installed on the beam at grade (Photo 1). Ensure that the brackets on the standards are installed so that when the beam is placed in its final fixed position the brackets are on the inside of the building (Photo 2). 4) The standards are fixed by placing into the pot and twisted through 90 degrees (this is a bayonet type fixing, see illustration A). Ensure that the rubber O Ring has been positioned on the standard prior to fitting and pushed down to the hand rail socket to prevent ingress of cement during floor slab installation (this will ensure easy removal of the standard after casting of floor slabs), See illustration B. 5) The horizontal hand rails are then fed through the standards and all grub screws tightened up. A yellow dot is applied to each grub screw once tightened for ease of inspection prior to lifting the beam. (Photo 3). Page 2 of 8

3 6) Where possible the mesh panel should also be installed at grade and lifted complete on the beam. This would be particularly appropriate where concrete planks/grating are to be installed as the floor structure. To do this the panels must be placed on the brackets (Photo 2) and secured with a minimum of 2 cable ties to the hand rail prior to lifting the beam into position. (Photo 4). Note: The mesh panel position must be in the Down position as shown on the blue panel in Photo 4. The orange panel is shown in the Up position in photo 4. 7) When lifting the assembly, chains should be attached at diagonal ends, either side of the Cellshield 2 system so that the rails cannot tip over. Photo 1. Illustration A Illustration B Photo 2 Photo 3 Photo 4 Page 3 of 8

4 8) If the system is being installed between continuous columns then ensure to provide connectors to ensure easy dismantling of the system at the end of the project. 9) Tighten all grub screws in connectors. Re-tap threads if not running freely. 10) Check and ensure that all grub screws have been fully tightened in sockets, standards and connectors. Again a yellow dot should be placed (see item 4 above) on all grub screws to confirm the check has been successfully completed. 11) Where decking is to be installed (Photo 5) the mesh panel can go on after installation of the decking edge trim (Photo 6). This will minimise the amount of manual handling and working at a building edge. All materials and tools must be stored at least three metres from the edge. There must be no loose items on the deck that could be inadvertently kicked off the decking. 12) Inspect the completed system in line with section 4.0 of this instruction, using Form S062. Photo 5 Photo 6 Page 4 of 8

5 3.0. Positioning and Repositioning of Mesh Panels following Decking Installation Following the satisfactory installation of the floor decking and associated edge trims and shear studs (Shear studs can only be fixed once edge trim or other means of toe board are in place due to loose components used) the Cellshield panels should positioned on the standards as per item 5 above (Photo 7). The instructions for this are as follows: 1) Land the stillage in a suitable location on the decked area, ensuring that the floor is capable of taking the load. It may be necessary to use spreader mats e.g timber pads where necessary. Each stillage will be marked with the maximum weight when fully loaded with panels. 2) Each panel weighs 8.6 kgs. However due to the length the panel it can become unwieldy to lift so two persons will be required to lift each mesh panel from the stillage. 3) Starting from one end install the mesh panel on the brackets of the standard. These can be installed in the Up position (see photo 6), providing that the edge trim is in place, to allow slab installers access. This must be agreed with the client/pc as the system is handed over as per section 4 below). 4) Once mesh panels are installed, the panel must be secured to the standards using two cable ties on each mesh panel (whether the mesh panel is in the Up position or Down position ). Repositioning of panels 5) Remove the existing plastic cable ties, using snips (ensure tool tether used on snips as this activity as at the edge of the building or a void), ensuring that you have hold of the cable tie whilst you snip the cable tie to ensure it does not fall out of the building. 6) Redundant cable ties must be kept in a suitable receptacle e.g tool belt pouch, bag, etc and be disposed of in line with the Site Waste Management Plan (these are largely recyclable plastic). 7) Lift the first panels progressively from one end as per 3 above, to the desired height. 8) Once mesh panels are installed, the panel must be secured to the standards using two cable ties on each mesh panel (whether the mesh panel is in the Up position or Down position ). 9) Inspect the completed system in line with section 4.0 of this instruction, using Form S062. Photo 7 Page 5 of 8

6 4.0. Site Inspection & Handover 1) Before allowing anyone to work in an area enclosed by the Cellshield 2 system, the system must be inspected. 2) Inspections must be carried out weekly or after modifications e.g lifting/lowering, damage or the onset of adverse weather conditions etc. Form S062 is to be endorsed on a weekly basis, the inspector of the system is to print their name, sign and date. 3) If the system is being handed over to the Principal Contractor (or other subcontractors) then a joint inspection must take place and WHL Site Manager must remind them in writing (using form number S062 Cellshield inspection & Handover ) of their duty to carry out inspections and liabilities for ensuring that the system is dismantled and returned correctly (see section 6.0) Maintenance The Cellshield 2 edge protection system has been designed to be maintenance free, other than weekly inspection Final Removal Important! Cellshield 2 should not be removed until the envelope of the building is safely sealed. If removal of Cellshield 2 safety barrier system is required prior to façade completion there must be alternative fall prevention / arrest measures in place 1) Remove cable ties & lift panel from brackets 2) Stack panels in stillage s provided 3) Release grub screws from standards and connectors and remove handrails 4) Do not flame cut or disc cut the standards or handrails for quick removal. Any damages resulting from such actions may be back-charged 5) Twist the handrail standards anticlockwise and pull upwards (Illustration C). 6) Stack in the stillage s provided Illustration C Page 6 of 8

7 7.0. Other Important Issues 1) Do not attach safety lines / harnesses to any part of the Cellshield 2 safety barrier system. 2) Do not attach any safety / debris netting, sheeting or additional signage to the Cellshield 2 safety barrier system as this may affect the wind loadings imposed upon it. Extreme care should be taken during installation to avoid trapping fingers. Do not use excessive force while positioning panels on brackets Page 7 of 8

8 CELLSHIELD 2 INSTRUCTION FORM I the undersigned confirm that I have completed the Toolbox Talk to explain the use of the Cellshield 2 system and that I am authorised to do this POSITION.. NAME.. SIGN.. I the undersigned acknowledge that I have had the toolbox talk introduction with the above named person and that I have read and fully understood the Basic Instruction Manual for the Cellshield 2 Safety Barrier System POSITION.. NAME.. SIGN.. PLEASE RETAIN ORIGINAL COPY ON SITE AND RETURN SCANNED COPY TO CELLSHIELD LTD info@cellshield.co.uk Page 8 of 8

9 A William Hare Group Company THE SAFE & SIMPLE SOLUTION The Cellshield 2 system has been designed to ensure the simplest, most cost effective edge protection system on the market today. Cellshield 2 has been designed to be installed at the time of main frame erection. The system is fully compliant with the requirements of BS EN Class A at all stages during the construction and following trades. The basic system comprises of three lines of handrails, with a lightweight metal mesh mounted in front of these. Rails are positioned such that the system is fully compliant with BS EN (Class A) both pre and post slab pour. The full height of the triple rail system exceeds the minimum recommendations of BS EN (Class A) and provides an added level of security to the site workforce. Key benefits of the system include: Easy and speedy installation Simple components with no moving parts Lightweight mesh panels for manual handling Secure attachment to the steel frame via sacrificial welded sockets Simple breakdown at end of project Sustainable solution with full reusability for all main components Solid toe-plate for excellent debris containment Adjustable in width In summary Cellshield 2 is the simple, safe solution to protecting your workforce at height - you simply cannot afford not to.

10 A William Hare Group Company Triple height rail, installed at grade and lifted in place with beam to reduce working at height. Triple height rail protection in place at time of decking installation. Lightweight panels for easy handling Panels to provide barrier and toe board while working on the decking

11 A William Hare Group Company Panels elevated to allow access for for installation of edge trim Panels in use following slab pour

12 A William Hare Group Company Simple design with no moving parts or mechanical linkages.