Helkama Bica Marine and Offshore Cables EN

112 10/2017 Halogen-free refers to the absence of halogens, such as chlorine and fluorine, and is determined on the basis of halogen content and the acidity of gases of a cable. IEC 60754-1 determines the halogen content of the material. To meet the requirements as halogen-free the halogen content of the material may not exceed 0,5 % or 5 mg/g. IEC 60754-2 determines the degree of acidity of gases evolved during combustion. The limit values are 4,3 for pH and 10 mikroS for conductivity. Standard for materials: IEC 60092-360 Insulation material: The following designations are used for insulation materials in this catalog. All materials are halogen-free. XLPE stands for cross-linked polyethylene compound. It has excellent mechanical and electrical characteristics. Sheathing material: The designation SHF1 stands for thermo- plastic compound. This material is halogen- free, highly flame-retardant and has low smoke emission. The designation SHF2 stands for oil resistant thermosetting compound. This material is halogen-free, highly flame-retardant and has low smoke emission. Definition of terms: Oil resistance Sheathing material is oil resistant according to method IEC 60811-404 and requirements from IEC 60092-360/SHF2. The oil resistance is demonstrated by immersion in IRM902 oil for 24h at 100°C. Flame-retardant To be flame-retardant, the cables must withstand the test specified in IEC standard 60332-3 or IEC 60332-1. Flame-retardant cables do not propagate fire, and are self- extinguishing. Test on bunched cables IEC 60332-3 Burning is allowed up to max. 2.5 meters from the burner within specified time. IEC 60332-1 is the test for single insulated wire and cable. Test procedure and require- ments according to the picture below. Min. 50 mm of the cable, measured from the upper support, must remain unburned after the specified time. Fire-resistant IEC 60331-1 Test method for fire with shock at a temperature of at least 830 °C for 90 minutes for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter exceeding 20 mm. IEC 60331-2 Test method for fire with shock at a temperature of at least 830 °C for 90 minutes for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter not exceeding 20 mm. Smoke emission refers to visibility in a fire. The greater the light trans-mittance, the better the visibility. When tested in accordance with IEC 61034-1 (test method) and IEC 61034-2 (test requirements) the smoke emission of a cable during fire must not exceed the following values. 27m 3 cube smoke chamber Requirements: 60 % light transmittance IEC 60332-3-22 is the test for bunched cables. Burning time describes how long the burner is directed towards the bunch of cables. The requirement for passing the test is that after the burner has been removed the cables must extinguish themselves. Burning may not occur more than 2.5 m from the burner as shown in the figure. All Helkama cables comply with the most severe requirements of category A. Amount of burning material is 7 litres/m and burning time 40 minutes. 50 mm 475 550 600 mm mm mm 830 °C / 90 min Un 3A 110 mm gas burner 500 mm General information

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