Comparison of the AC breakdown voltage of various polymers intended to the conception of a new generation of piercing connectors – influence of geometrical, electrical and climatic factors
作者： M.A. Douar , A. Beroual , X. Souche
DOI: 10.1109/TDEI.2016.7736867
关键词: Polymer 、 Composite material 、 Electrode 、 Polyamide 、 Polycarbonate 、 Materials science 、 Breakdown voltage 、 Cable gland 、 High-density polyethylene 、 Thermal stability 、 Electrical engineering
摘要: The AC breakdown voltage (BDV, 50 Hz) of various polymers is investigated regarding the influence several constraints: (i) effect electrodes geometry (namely cylindrical, spherical or pyramidally capped point/point) that simulates interaction between metallic constituents connector (piercing teeth and plates) those covered cables (such as conductor presence voids); (ii) rate-of-rise (RRV) connection to H.V. source; (iii) thermal ageing at higher temperatures (namely, 100, 130 150 °C) and; (iv) thermo-hygro under salt rain. aim such a study identify suitable organic materials could be intended for conception new generation piercing connectors will used on overhead cables. Regarding BDV tests, cover thermoplastics polyamide 6, 66, polyarylamide, polycarbonate, high density polyethylene polyphenylene sulfide); unfilled/fireproofed EPDM rubbers. obtained results clearly show (BDV) with exhibits highest values. It also evidenced source electrode dimension value significant. Results spherical–pyramidally point exhibit than spherical–cylindrical ones PA 66/50 PC/40, PARA/50 HDPE. Furthermore, affects seriously based while sulfide less damaged due its stability. As concerns ageing, moisture absorption responsible significant decrease (PA 6/50 66/50).
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