CN204480728U - A kind of low smoke and zero halogen railroad coach tensile cable - Google Patents

Abstract

The utility model discloses a tensile cable for low-smoke and halogen-free railway passenger cars, which includes a conductor, and the outer side of the conductor is sequentially coated with a polyolefin insulating layer, a fluoroplastic insulating layer and a copper-plastic composite tape wrapping layer. A plurality of conductors and three tinned steel wire ropes are evenly placed and bundled to form a cable core, and the outside of the cable core is sequentially covered with a nano-silicon waterproof glue filling layer, a calcined mica tape fire-resistant wrapping layer, a high-temperature-resistant glass fiber filling layer, Silver plated alloy wire braid shield and LSZH PVC outer sheath. The utility model twists multiple conductors and tinned steel wire ropes, which greatly enhances the strength and torsion resistance of the cable, and uses a nano-silicon waterproof glue filling layer and a calcined mica tape wrapping layer to make the cable waterproof and fireproof. Effective promotion.

Description

Tensile cable for low-smoke and halogen-free railway passenger cars

technical field

The utility model relates to the field of cable technology, in particular to a tensile cable for low-smoke and halogen-free railway passenger cars.

Background technique

With the large-scale construction of passenger dedicated lines and high-speed railways in my country, and the further improvement of the construction scale, it is objectively necessary to use a large number of railway-specific cables. Such cables must have high reliability requirements. The existing such cable structures still have longitudinal The waterproof ability is also poor, and the service life and electrical performance of the cable are not very good.

Utility model content

The purpose of the utility model is to provide a low-smoke and halogen-free railway passenger car tensile cable in order to make up for the defects of the prior art.

The utility model is achieved through the following technical solutions:

A tensile cable for low-smoke, halogen-free railway passenger cars, which includes a conductor, and the outer side of the conductor is covered with a polyolefin insulation layer, a fluoroplastic insulation layer and a copper-plastic composite tape wrapping layer in sequence, and multiple conductors and Three tinned steel wire ropes are evenly placed and bundled to form a cable core, and the outside of the cable core is sequentially covered with a nano-silicon waterproof glue filling layer, a calcined mica tape fire-resistant wrapping layer, a high-temperature-resistant glass fiber filling layer, and a silver-plated alloy wire braid Shield and LSZH PVC outer sheath.

The conductor is twisted from a plurality of nickel-plated copper wires.

The utility model has the advantages that: the utility model twists a plurality of conductors and tinned steel wire rope bundles, which greatly enhances the strength and torsion resistance of the cable, and uses a nano-silicon waterproof glue filling layer and a calcined mica tape around the cladding layer, so that The waterproof effect and fireproof effect of the cable are effectively improved.

Description of drawings

Figure 1 is a schematic structural view of the utility model.

Detailed ways

As shown in Figure 1, a low-smoke halogen-free railway passenger car tensile cable includes a conductor 1, and the outside of the conductor 1 is coated with a polyolefin insulating layer 2, a fluoroplastic insulating layer 3 and a copper-plastic composite The wrapping layer 4 is wrapped around, and a plurality of conductors 1 and three tinned steel wire ropes 5 are evenly placed and twisted to form a cable core, and the outside of the cable core is sequentially covered with a nano-silica waterproof glue filling layer 6, a calcined mica tape refractory winding Cladding layer 7, high temperature-resistant glass fiber filling layer 8, silver-plated alloy wire braided shielding layer 9 and low-smoke halogen-free polyvinyl chloride outer sheath 10.

The conductor 1 is twisted from a plurality of nickel-plated copper wire bundles.

Claims (2)

1. a low smoke and zero halogen railroad coach tensile cable, it is characterized in that: include conductor, polyolefin insulation layer, fluoroplastic insulation layer and compound copper-plastics band lapping layer is coated with successively outside described conductor, many conductors and three tin plated steel wire ropes are evenly placed and restrainted to twist and forms cable core, outside described cable core, be coated with nano-silicon marine glue packed layer, the fire-resistant lapping layer of calcining mica tape, pyroceram silk packed layer, silver-plated B alloy wire woven shield and low smoke and zero halogen polyvinyl chloride oversheath successively.

2. a kind of low smoke and zero halogen railroad coach tensile cable according to claim 1, is characterized in that: described conductor is twisted by many nickel-clad copper tow and forms.