FIELD: power engineering.
SUBSTANCE: invention relates to electric power industry, namely to tension pressing clamps for attachment to supports of overhead transmission lines of twisted wires. Clamp comprises housing (1), anchor (2) and eye (3). Housing (1) is made in the form of round or round with parallel flats or oval shape aluminum pipe. During installation of aluminum and aluminum wires made in housing (1) there are two inserts, the cross-section area of which is selected from range of 0.6…1.5S, where S is area of cross-section of mounted wire twisted, for example, from two identical wires. During installation of steel-aluminum wire, anchor (2) has two steel inserts, the cross-section area of which is selected from range of 0.6…1.5S, where S is area of cross-section of mounted steel cores for anchor (2) and wire twisted, for example, from two wires. Inlet hole of anchor (2) on length of cylindrical grooves made in it is cone-shaped at an angle α= 6÷12°.
EFFECT: improved operational reliability and simplicity of manufacturing.
7 cl, 5 dwg
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Authors
Dates
2020-01-16—Published
2019-01-22—Filed