Bare Copper Conductors

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All-aluminium conductors are the most favored type for use in the construction of relatively short span distribution schemes and are in common use on lines for voltage up to 60 KV. Another frequent application for all-aluminium conductor is in flexible busbar connections. Although aluminium-to-copper connections can be made, it is better to use aluminium conductors for service connections, as various forms of covered cable being available for this purpose. The data sheets show the most common sizes of conductors but other sizes, to any recognized standards or customer specification can also be supplied. AAC insulated with XLPE or PVC can be supplied as per the customers’ requirement. The products can also be produced according to standards: British Sizes BS 215, Part 1:1970 BS EN 50182: 2001 IEC Sizes IEC 61089 (1991-06) American Sizes ASTM B 231-90 (Class A and Class AA) Canadian Sizes CSA C49-1965 German Sizes DIN 48 201 Part 5 Apr 1981 Conductor secions note: Values of current rating are valid upto 60Hz at a wind speed of 0.6 m/s and the effect of sun for an ambient initial temp. of 35oC & an ultimate temp of conductor 80oC. Aluminium Conductor Steel Reinforced Construction The mixed construction of ACSR makes it a very flexible medium from a design point of view. By varying the relative proportions of aluminium and steel the ideal conductor for any particular application can be produced. Generally, ACSR consists of a galvanized steel core of 1 wire, 7 wires or 19 wires surrounded by concentric layers of aluminium wire. When a conductor with a high current carrying capacity and comparatively low strength is required, special constructions are available with a high aluminium content. Our enterprise can also produce the extra high strength stranding conductor Protection against Corrosion A coating of non-oxidizing grease is normally applied to the steel cores of all conductors, in addition to the protection offered by the galvanizing of the steel wires. One or more layers of the aluminium wires can, if required, be supplied partially or fully greased. The products can also be produced according to standards: British Sizes BS 215, BS EN 50182:2001 IEC Sizes IEC 61089 : 1991 American Sizes ASTM B 232/B 232M-99 Canadian Sizes CSA C 49-1965 German Sizes DIN 48 204 – APR 1984 Conductor sections All-Aluminium Alloy Conductors This section deals with heat-treatable magnesium silicon type aluminium alloys to BS EN 50182, the electrical and mechanical properties of which all fall within the values suggested by Publication 104 of the international Electro technical Commission. Conductors to all other recognized specifications can also be supplied. The alloys referred to have higher strength but lower conductivity than pure aluminium. Being lighter, alloy conductors can sometimes be used to advantage in place of the more conventional ACSR; having lower breaking loads than the latter, their use becomes particularly favorable when ice and win loadings are low. The conductor can also be producted according standards: British Sizes BS EN 50182: 2001 IEC Sizes IEC 61089 (1991) American Sizes ASTM B 399-97 Canadian Sizes German Sizes DIN 48 201 Part 6 (1981) CONDUCTOR SECIONS Bare Copper Conductors These are standard circular bare copper conductors mainly used for : a) Overhead transmission system b) Overhead traction system c) Transformer earthing (occasionally) While the tables give broad constructional details, BS 7884 covers all the details mentioned below:- a) Material composition b) Dimensions c) Mechanical properties d) Electrical resistance e) Stranding details f) Test detail

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zhengzhouyifangcableco.ltd

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