Installation guide: “ADJUSTABLE U TYPE SYSTEM FOR EDGE PROTECTION WITH SAFETY NETS”
Installation guide: “ADJUSTABLE U TYPE SYSTEM FOR EDGE PROTECTION WITH SAFETY NETS”
This section explains the symbols used in the manual to highlight important safety and operational instructions, including warnings for danger, mandatory PPE use, and notes for important information.
The manual is intended for installers, maintenance personnel, and safety technicians involved with the "Adjustable Arm" system for edge protection. It emphasizes the need for qualified staff and outlines the manufacturer's liability, stressing compliance with safety standards and proper system use.
The system is designed to prevent falls from heights, requiring adherence to safety standards, including the use of scaffolding and PPE like helmets and harnesses. Work should be halted in adverse weather conditions.
The "Adjustable Arm" system is designed to protect building edges during construction, complying with European safety directives and standards, prioritizing collective protection over individual measures.
This section provides definitions for terms related to safety nets, such as mesh, net, safety net, and various types of ropes used in the system.
The system includes general components like the contrabase, metallic structure support, and safety nets, as well as auxiliary components like tie ropes and tensioning straps. Each component is described with its specifications and purpose.
The system can be configured for front and side protection, adaptable to various roof slopes and conditions, complying with relevant safety standards and offering versatile fastening options.
Detailed procedures for assembling and disassembling the system, including the installation of special components and safety nets, are provided. Proper anchoring and fixation methods are emphasized to ensure safety and compliance.
Guidelines for testing the safety nets and maintaining the system are included, ensuring ongoing safety and functionality. Regular inspections and replacements are recommended.
Additional configurations and detailed technical specifications are provided in the annexes, supporting the main content of the manual.
Configuration for protection against falling persons, objects, and materials. Fixing methods for various structures: concrete, steel, masonry, and wood. Mechanical anchorages require at least three pull-out tests to ensure proper fastening.
For protection against falling objects and materials, contact the manufacturer for specific configurations.
The BA-2405 base plate can be fixed to multiple structures. If direct fixing is not possible, use the BA-2404 bracket. Ensure proper alignment and secure fastening using appropriate tools; manual tightening is not recommended. For sloped roofs, pre-assemble components before final positioning and bolting.
Ensure all components are securely fastened using suitable tools. For beams or pillars, consider surface roughness and use ratchet straps or threaded rods for secure attachment. For the graduated base plate, ensure vertical leveling and secure with threaded rods or a counter plate.
Insert and secure the adjustable arm to the base plate, ensuring correct positioning and angle. For articulated or non-articulated arms, follow specific steps for secure attachment and use of arm extenders if necessary.
Multiple options for net installation using ratchet straps, tying ropes, or hooks. Ensure no gaps greater than 10 cm between nets and follow specific procedures for different net lengths.
Minimum anchorage specifications for different materials are provided, including diameter, length, tensile, and breaking strength. Wind pressure considerations are included for European conditions.
Follow reverse order of installation for dismantling, ensuring safety measures are in place to protect operators.
The document outlines the specifications for safety nets, emphasizing compliance with standards EN 1263 and EN 13374. It specifies that each net must have an identification label detailing the manufacturer, traceability code, manufacture date, energy absorption capacity, and breaking force. Metallic components must also be labeled according to EN 13374.
Each net includes three test meshes for annual tensile testing to ensure durability and strength. Successful tests extend the net's warranty by a year, up to a maximum of four years. If test meshes or tags are removed, the net loses certification.
Safety nets should be stored in dry, cool places away from heat and chemicals. Regular visual inspections are necessary to check for damage such as abrasions, breakages, and rust. Any net affected by falling objects or showing mechanical issues must be replaced.
Nets must be replaced if they show mechanical damage, have been impacted by heavy objects, or after four years of use. Specific conditions like exposure to chemicals or sunlight can also necessitate replacement.
Climate and environmental factors such as UV exposure, chemical pollutants, and iron oxide can affect net integrity. Appropriate treatments and precautions are recommended to mitigate these effects.
A control log should be maintained to document all maintenance activities, inspections, and any anomalies detected. This log ensures accountability and tracks the net's condition throughout its lifecycle.
The document provides detailed instructions for the installation and configuration of safety nets, including recommended inclinations and fastening types. Specific configurations are advised for tensioning and support needs.
Annex A and B provide additional guidelines on fastening types, reinforcement accessories, and specific configurations for different structural conditions.
Catalog excerpts
Installation guide: “ADJUSTABLE U-TYPE SYSTEM FOR EDGE PROTECTION WITH SAFETY NETS
Open the catalog to page 1
INDEX INDEX 1. SYMBOLS: Meaning and Use. 2. PRELIMINARY INFORMATION. 2.1. Contents and recipients of the manual. 2.2. Staff qualification. 2.3. Manufacturer's liability. 3. SAFETY AND ACCIDENT PREVENTION 4. INTRODUCTION. 5. DEFINITIONS. 6. DESCRIPTION OF THE COMPONENTS OF THE "ADJUSTABLE ARM" SYSTEM. 6.1. General components. 6.2. Auxiliary Components. 7 USAGE SETTINGS. 7.1. Configuration Type. 7.2. Possible configurations. 7.3. Special settings. 8 INSTALLATION. 8.1. Assembly of the special component for metallic structure. 8.2. Fixation of the special component to the structure. 8.3. Fixing of...
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www.visornets.com VISOR FALL ARREST NETS S.L. (+34) 966 792 018 Poligono Industrial Los Barrios (+34> 966 792 874 C/Los Alamos, 9 03179 Las Heredades comarcialevisornets.com 3 (Rojales) Alicante. Spain [email protected]
Open the catalog to page 3
www.visornets.com VISOR FALL ARREST NETS S.L. (+34) 966 792 018 Poligono Industrial Los Barrios (+34> 966 792 874 C/Los Alamos, 9 03179 Las Heredades comarcialevisornets.com 4 (Rojales) Alicante. Spain [email protected]
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2. PRELIMINARY INFORMATION 2.1.Contents and addressees of the manual This use and maintenance manual, produced by the company RETIBREMBO srl by Visornets, refers to the use of the "Adjustable Arm" system integrated with safety nets, for temporary edge protection: • RETIBREMBO srl: Registered office: viale Vittorio Emanuele II n. 43 - 24121 Bergamo (BG) Operational headquarters: via Brughiera 21 - 24100 Palazzago (BG) Tel. +39 0356315134 Fax. +39 035553706 Email: [email protected] • VISORNETS SL: Avda. Los Alamos, 9 - Pol. Ind. Los Barrios - 03179 Las Heredades -Rojales (Alicante) - Spain Tel....
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2.3.Manufacturer's liability With reference to what is indicated in this manual, the company RETIBREMBO srl by Visornets responds to the characteristics and qualities of the materials. Declines all responsibility in case of: • non-compliance or incorrect observance of the instructions provided in this manual. • use of the system contrary to safety and accident prevention regulations. • incorrect choice and preparation of the structures on which the system will be fixed. • incorrect choice and preparation of anchor accessories. • Failure to comply with the directives contained in the safety standard...
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3 Visor FallArrestNets www.visornets.com 4. INTRODUCTION Edition of the manual: September 2018 Last revision of the manual: May 2022 The "Adjustable Arm" system with U-type safety nets is designed to protect the edges of buildings during construction or maintenance, eliminating the possible risk of workers falling from heights and the risks derived from falling objects. The positioning of the system allows complete mobility of workers over the protected area in all work operations. This manual is a standard to carry out the assembly and disassembly of the system. Directive 89/391/CEE, regarding...
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5.5. Mesh rope Rope from which the meshes of a net are manufactured. 5.6. Border rope Rope which passes through each mesh at the perimeter of a net and determines the perimetric dimensions of the safety net. 5.7. Tie rope Rope used for securing the border rope to a suitable support. 5.8. Coupling rope Rope that joins two or more safety nets together. 5.9. Types of rope: K-TYPE ROPE: Border rope without ends. Minimum tensile strength: 30kN. L-TYPE ROPE: Tie rope with a loop. Minimum tensile strength: 30 kN If the net is held by a single rope 15 kN if the net is secured with a double pass M-TYPE...
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5.10. Test mesh Section of mesh which is attached into the safety net and which can be removed to determine any deterioration due to ageing without impairing the performance of the net 5.11. Supporting framework Structure to which nets are attached and which contributes to the absorption of kinetic energy in case of dynamic actions. 5.12. Class Classification for the net respective to energy absorption capacity and mesh size. 5.13. System Assembly of safety net components, which forms an equipment to be used in accordance with the instruction manual. 6.DESCRIPTION OF THE COMPONENTS OF THE "ADJUSTABLE...
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6.1 DESCRIPTION OF THE GENERAL COMPONENTS 6.1.1 Counter base (REF: BA-2402) S-275JR contrabase base fixed with at least 4 threaded rods M12 x 100 mm or 120 mm, subject to accurate verification of the bracket. 6.1.2 Metallic structure support (REF: BA-2404) • Anchorage fixed with tensioning straps + ratchets. Anchorage with fixing system using high tenacity polyester straps with manual ratchet. The minimum load of the straps used for fixing the bracket must withstand at least 40 kN, maintaining at all times an adequate fixing tension to the supporting structure. • Structure support fixed by threaded...
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6.1.3 Graduated base plate (REF: BA-2405) This base plate is suitable for pitched roofs between 0° and 60° and can be positioned horizontally on the beams and vertically on the pillars. It is the support element for the adjustable arm and thanks to its holes it can be positioned from 0° to 90°, at intervals of 15°. Weight: 5 kg. Steel tube S-235JRH, square section 50x50 mm, 3 to 4 mm thick, with two welded plates at one end to house the adjustable upper arm, which will form a joint. Weights according to length: 5 to 7 kg. Can be: L = 0.50 ml L = 1.00 ml L = 0.50+ 1.00 ml 6.1.5 Articulated arm...
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6.1.7 Arm extender (REF: BA-2400) S-275JR steel tube with a square section of 40x40 mm, 3 mm thick, extendable up to a maximum of 1.00 m, with a welded ring at its upper end to tie the net. It constitutes the support structure of the system's safety net. Weight: 7 kg 6.1.8 “U”-type safety net The U-type safety nets of the “Adjustable Arm” protection system are made of high tenacity polypropylene or polyamide and have been tested according to the current EN 1263-1 standard, class A2. The net is made with 60 mm or 100 mm square mesh. As additional protection against falling objects, there is the...
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