GINDIN: продукция Bridon-Bekaert (Брайдон) в России

Steel Rope Technical Information 62 Under these conditions, natural fibres are likely to yield carbon dioxide, water and ash, whereas synthetic materials are likely to yield toxic fumes. The treatment of natural fibres, such as rotproofing, may also produce toxic fumes on burning. The concentrations of toxic fumes from the cores, however, will be almost negligible compared with the products generated by heating from the other primary materials, e.g. wire and manufacturing lubricant in the rope. The most common synthetic core material is polypropylene, although other polymers such as polyethylene and nylon may occasionally be used. Filling and Covering Materials Filling and covering materials do not present a health hazard during handling of the rope in its as-supplied condition. The principal area of hazard is by the inhalation of fumes generated by heat, for example when the rope is being cut by a disc cutter. Under these conditions, fillings and coverings, which are generally polypropylene, polyethylene and polyamid (but in some cases may be of natural fibre) are likely to produce toxic fumes. General Information Occupational protective measures 1) Respiratory protection - Use general and local exhaust ventilation to keep airborne dust or fumes below established occupational exposure standards (OES’s). Operators should wear approved dust and fume respirators if OES’s are exceeded. (The OES for total dust is 10mg/m3 and for respirable dust is 5mg/m 3 ). 2) Protective equipment - Protective equipment should be worn during operations creating eye hazards. A welding hood should be worn when welding or burning. Use gloves and other protective equipment when required. 3) Other - Principles of good personal hygiene should be followed prior to changing into street clothing or eating. Food should not be consumed in the working environment. Emergency medical procedures 1) Inhalation - Remove to fresh air; get medical attention. 2) Skin - Wash areas well with soap and water. 3) Eyes - Flush well with running water to remove particulate; get medical attention. 4) Ingestion - In the unlikely event that quantities of rope or any of its components are ingested, get medical attention. Safety Information 1) Fire and explosion - In the solid state, steel components of the rope present no fire or explosion hazard. the organic elements present, i.e. lubricants, natural and synthetic fibres and other natural or synthetic filling and covering materials are capable of supporting fire. 2) Reactivity - Stable under normal conditions. Spill or leak procedures 1) Spill or leak - Not applicable to steel in the solid form. 2) Disposal - Dispose of in accordance with local Regulations. Rope Terminology Wires Outer wires: All wires positioned in the outer layer of wires in a spiral rope or in the outer layer of wires in the outer strands of a stranded rope. Inner wires: All wires of intermediate layers positioned between the centre wire and outer layer of wires in a spiral rope or all other wires except centre, filler, core and outer wires of a stranded rope. Core wires: All wires of the core of a stranded rope. Centre wires: Wires positioned either at the centre of a spiral rope or at the centres of strands of a stranded rope. Layer of wires: An assembly of wires having one pitch circle diameter. The exception is Warrington layer comprising alternately laid large and small wires where the smaller wires are positioned on a larger pitch circle diameter than the larger wires. The first layer is that which is laid immediately over the strand centre. Note: Filler wires do not constitute a separate layer. Tensile strength grade of wires: A level of requirement of tensile strength of a wire and its corresponding tensile strength range. It is designated by the value according to the lower limit of tensile strength and is used when specifying wire and when determining the calculated minimum breaking force or calculated minimum aggregate breaking force of a rope. Wire finish: The condition of the surface finish of a wire, e.g. bright, zinc coated. Material Safety Data BRIDON Oil and Gas