CN205211470U - Intensity aluminium alloy stranded conductor in steel core - Google Patents

Abstract

The utility model provides a medium-strength aluminum alloy stranded wire with a steel core, which comprises a reinforcing core composed of at least one galvanized steel wire and at least one layer of medium-strength aluminum alloy wires spirally wound on the periphery of the reinforcing core. The high-strength aluminum alloy wires each include a plurality of single wires, and the helical winding directions of the medium-strength aluminum alloy wires in each adjacent two layers are opposite. The medium-strength aluminum alloy stranded wire with a steel core of the utility model adopts a galvanized steel core as a reinforcing core to ensure the breaking force of the wire, and uses a medium-strength aluminum alloy wire with a conductivity of 57% IACS as the conductive part, which not only increases the strength of the entire wire The high tensile strength also reduces the resistance of the overall wire, the transmission capacity is higher, and the line loss is reduced, especially suitable for medium ice areas.

Description

Steel core medium strength aluminum alloy stranded wire

technical field

The utility model relates to a cable, in particular to a medium-strength aluminum alloy stranded wire with a steel core.

Background technique

Cables are widely used in transmission lines, especially overhead high-voltage transmission lines. For cables used for overhead high-voltage transmission lines in ice regions, not only are they required to have high tensile strength, but also low wire resistance to meet line transmission requirements and reduce line loss. Steel-core high-strength aluminum alloy stranded wires are mostly used in ice areas, and the wire transmission capacity is limited and the line loss is relatively large.

Utility model content

The purpose of this utility model is to provide a medium-strength aluminum alloy stranded wire with a steel core with good tensile strength.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a medium-strength aluminum alloy stranded wire with a steel core, including a reinforcing core composed of at least one galvanized steel wire and at least one layer spirally wound on the periphery of the reinforcing core High-strength aluminum alloy wires, each layer of medium-strength aluminum alloy wires includes a plurality of single wires, and the helical winding directions of every two adjacent layers of medium-strength aluminum alloy wires are opposite.

The medium-strength aluminum alloy wire is a medium-strength aluminum alloy wire with an electrical conductivity of 57% IACS.

The reinforcing core is composed of a galvanized steel wire core and six galvanized steel wires spirally wound outside the galvanized steel wire core.

The medium-strength aluminum alloy wires spirally wound on the periphery of the reinforcing core have three layers.

The medium-strength aluminum alloy wires spirally wound on the periphery of the reinforcing core have four layers.

The medium-strength aluminum alloy wires spirally wound around the reinforcement core have five layers.

The medium-strength aluminum alloy wire spirally wound on the periphery of the reinforcing core has two layers.

The medium-strength aluminum alloy stranded wire with a steel core of the utility model adopts a galvanized steel core as a reinforcing core to ensure the breaking force of the wire, and uses a medium-strength aluminum alloy wire with a conductivity of 57% IACS as the conductive part, which not only increases the strength of the entire wire The high tensile strength also reduces the resistance of the overall wire, the transmission capacity is higher, and the line loss is reduced, especially suitable for medium ice areas.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the sectional structure schematic diagram of the utility model;

Fig. 3 is a top view structural diagram of the utility model.

detailed description

Referring to Fig. 1, Fig. 2, Fig. 3, the medium-strength aluminum alloy stranded wire with steel core of the present utility model comprises the strengthening core 1 that is made of at least one galvanized steel wire (this embodiment is made up of a galvanized steel wire core and Consisting of six galvanized steel wires spirally wound outside the galvanized steel wire core) and at least one layer (three layers in this embodiment) of medium-strength aluminum alloy wires 2 spirally wound on the periphery of the reinforcing core, each layer of medium-strength aluminum alloy wire Each includes a plurality of single wires, and the helical winding directions of the medium-strength aluminum alloy wires of each adjacent two layers are opposite. The medium-strength aluminum alloy wire is a medium-strength aluminum alloy wire with an electrical conductivity of 57% IACS.

The medium-strength aluminum alloy wires spirally wound on the periphery of the reinforcing core can have one to five layers.

Claims (5)

1. A medium-strength aluminum alloy stranded wire with a steel core, characterized in that: comprising a reinforcing core made of at least one galvanized steel wire and at least one layer of medium-strength aluminum alloy wire spirally wound on the periphery of the reinforcing core, each layer The high-strength aluminum alloy wires each include a plurality of single wires, and the helical winding directions of each adjacent two layers of medium-strength aluminum alloy wires are opposite; The medium-strength aluminum alloy wire is a medium-strength aluminum alloy wire with a conductivity of 57% IACS; The reinforcing core is composed of a galvanized steel wire core and six galvanized steel wires spirally wound outside the galvanized steel wire core. 2. The medium-strength aluminum alloy stranded wire with steel core according to claim 1, characterized in that: the medium-strength aluminum alloy wire spirally wound around the reinforcement core has three layers. 3. The medium-strength aluminum alloy stranded wire with steel core according to claim 1, characterized in that: the medium-strength aluminum alloy wire spirally wound around the reinforcement core has four layers. 4. The medium-strength aluminum alloy stranded wire with steel core according to claim 1, characterized in that: the medium-strength aluminum alloy wire spirally wound around the reinforcement core has five layers. 5. The medium-strength aluminum alloy stranded wire with steel core according to claim 1, characterized in that: the medium-strength aluminum alloy wire spirally wound around the reinforcement core has two layers.