CN201237928Y - Wind energy cable - Google Patents

Abstract

The utility model relates to the technical field of cables, in particular to an environment-friendly special cable for wind power generation. The central part of the fire-resistant cable of the utility model is a multi-stranded flexible conductor, a conductor insulation layer and a flame-retardant filling rope, and then a high flame-retardant tape layer, a polyester tape layer, a braided shielding layer, and an outer sheath layer are formed. It is wrapped layer by layer from inside to outside. The purpose of the utility model is to provide a wind power cable which is widely used in wind power generation and has good twist performance and environmental resistance performance.

Description

a wind power cable

technical field

The utility model relates to the technical field of cables, in particular to an environment-friendly special cable for wind power generation.

Background technique

Years of operation of wind turbines have shown that reliability and life of wind turbines should be addressed emphatically. The load faced by wind turbines is not like that of general communication and computer equipment. It must be able to ensure continuous use all year round, and it must also withstand the sun, rain, and freezing weather, and the operating conditions are very harsh. Therefore, we focus on these aspects of research: reliability and life, environmental climate resistance and mechanical performance indicators. Conventional wind energy cables are made of PVC insulation or ethylene propylene rubber insulation and neoprene sheath, but the cables cannot meet the performance requirements of wind energy generation.

Contents of the invention

The purpose of this utility model is to provide an environment-friendly wind energy cable for power generation in view of the above-mentioned shortcomings of the prior art.

The technical solution to achieve the above purpose of the utility model is: a wind energy cable, the central part of which is wrapped

It includes multi-stranded flexible conductors, conductor insulation layers and flame-retardant filling ropes, and then consists of high flame-retardant tape layers,

The polyester tape layer, the braided shielding layer and the outer sheath layer are wrapped sequentially from the inside to the outside.

Conductor insulating layer adopts cross-linked polyethylene as material.

The outer sheath layer is made of cross-linked chlorinated polyethylene material.

The utility model has the advantages that the wind energy cable with improved structure and material has strong reliability, long service life, environmental climate resistance and high mechanical performance index. The insulating layer is made of cross-linked polyethylene, and the sheath layer is made of cross-linked chlorinated polyethylene, which can meet the performance requirements of wind power generation and greatly improve the efficiency. The insulation and sheath material of the cable can withstand the low temperature environment of -40°C, and the electrical and mechanical properties of the cable are guaranteed in the low temperature environment. Class 6 conductors to ensure passing 10,000 twist tests, strong UV resistance, high oil resistance, and meet ROHS requirements.

Description of drawings

Fig. 1 is the structural representation of the specific embodiment of the present utility model;

In the figure, 1 is the multi-strand flexible conductor, 2 is the conductor insulation layer, 3 is the flame retardant filling rope, 4 is the high flame retardant tape layer, 5 is the polyester tape layer, 6 is the braided shielding layer, 7 is the outer jacket layer.

Detailed ways

The specific embodiment of the utility model is described below in conjunction with accompanying drawing.

Referring to Figure 1, the central part of the wind energy cable includes a multi-stranded flexible conductor 1, a conductor insulation layer 2 and a flame-retardant filling rope 3, and then a high flame-retardant tape layer 4, a polyester tape layer 5, and a braided shielding layer 6. The outer sheath layer 7 is wrapped sequentially from the inside to the outside. The conductor insulation layer 2 is made of cross-linked polyethylene. The outer sheath layer 7 is made of highly flame-retardant low-smoke halogen-free polyolefin material. The conductor insulation layer 2 and the outer sheath layer 7 of the cable are made of materials that can withstand a low temperature environment of -40°C, and ensure the electrical and mechanical properties of the cable in the low temperature environment.

The above-mentioned embodiments are used to illustrate the utility model, but not to limit the utility model. The improvement of the extrusion method of the present invention under the premise of the concept of the utility model belongs to the protection scope of the utility model.

Claims (3)

1. wind energy cable, it is characterized in that: the centre includes flexible conductor and the insulating layer of conductor and the fire-retardant gasket for packing of strands, and then by high flame retardant belt, polyester belt, woven shield, external sheath layer from inside to outside successively parcel form.

2. wind energy cable according to claim 1 is characterized in that: insulating layer of conductor adopts crosslinked polyethylene as material.

3. wind energy cable according to claim 1 is characterized in that: external sheath layer adopts crosslinked haloflex material.