一种防鼠咬的铜合金电缆

Abstract

本实用新型涉及电缆技术领域，且公开了一种防鼠咬的铜合金电缆，包括导电芯，所述导电芯为铜合金线材结构，所述铜合金线材的铜合金成分按质量百分比包括：铜90％‑95％、锡2％‑4％、锌1％‑3％、稀土元素0.1％‑0.5％；还包括有包覆于所述导电芯外侧的内护套层，包裹于所述内护套层外侧的金属铠装层，以及包裹于金属铠装层外侧的化学驱避层。本实用新型通过化学驱避层采用PE或PVC护套，添加微囊化辣味素，护套表面设凸起纹理，微囊通过复凝聚法制备，与护套材料复合后经挤塑成型，微囊化辣味素缓慢释放(5年残留率≥70％)，刺激鼠类口腔黏膜，驱避率≥90％，并且，护套表面凸起纹理通过尖锐边缘增加啃咬不适感，协同化学驱避作用。

Claims

1. A rodent-resistant copper alloy cable, comprising a conductive core (21), characterized in that: The conductive core (21) is a copper alloy wire structure. The copper alloy composition of the copper alloy wire includes, by mass percentage: 90%-95% copper, 2%-4% tin, 1%-3% zinc, and 0.1%-0.5% rare earth elements. It also includes an inner sheath layer (22) covering the outside of the conductive core (21), a metal armor layer (23) wrapping the outside of the inner sheath layer (22), and a chemical repellency layer (24) wrapping the outside of the metal armor layer (23).

2. A rodent bite resistant copper alloy cable according to claim 1, characterized in that: The inner sheath layer (22) is made of cross-linked polyethylene or low-smoke halogen-free material, with a thickness of 0.8 mm to 1.5 mm.

3. A rodent bite resistant copper alloy cable as defined in claim 1, wherein: The metal armor layer (23) is a stainless steel strip or a fine steel wire braided layer. The thickness of the stainless steel strip is 0.3 mm to 0.5 mm, the diameter of the fine steel wire is 0.5 mm to 1.0 mm, the stainless steel strip is passivated, and the tensile strength of the fine steel wire is ≥800 MPa.

4. The rodent-resistant copper alloy electrical cable of claim 1, wherein: The chemical repellent layer (24) is made of polyethylene or polyvinyl chloride sheath with added microencapsulated capsaicin. The sheath surface has raised textures, wherein the microencapsulated capsaicin has a particle size of 10 μm to 50 μm and a content of 5% to 10%.

5. The rodent-resistant copper alloy electrical cable of claim 1, wherein: Between the inner sheath layer (22) and the metal armor layer (23), there are wear-resistant ring layer (25), heat insulation ring layer (26), flame-retardant ring layer (27) and tensile-resistant ring layer (28) from the inside out; the wear-resistant ring layer (25) is made of PE material, the heat insulation ring layer (26) is made of polystyrene material, the flame-retardant ring layer (27) is a sheath made of flame-retardant low-smoke halogen-free polyolefin material, and the tensile-resistant ring layer (28) is made of TPU material.

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