同心導體電力電纜
CONCENTRIC CONDUCTOR POWER CABLE
標準
STANDARD
本產品按企業標準制造，產品適宜敷設于額定電壓0.6/1kV及以下的電力線路中作輸送電能用，廣泛用于高層建筑、石油化工、治礦山等場合。
The product is manufactured according to the enterprisestandard and is suitable for power circuit with rated voltageof 0.6/1kV and widely used in high buildings, petri-chemica-limdustry ,metallurgy, mines and so on.
產品特色
FEATURES
本產品除具有普通聚氯乙烯絕緣電力電纜、低壓交聯電力電纜的特性外，還有以下特點:
(1)具有較低且均勻的正(逆)序和零序阻抗，有利于改善供電品質。
(2)同心層導體比普通四芯電纜的第四芯在零序工作狀態下的電抗值低得多,有利于短路自動保護裝置的靈敏動作，從而保證電纜和相關設備的安全運行。
(3)具有較強的抗電磁干擾性能和抗雷擊性能。
(4)五芯電纜適用于TN-S和TN-C-S系統的供電。
Besides the properties of common PVC insulated power cable ,it has the following advantages;
1.it has lower and regular positive (inverted)sequence andzero sequence impedance ,Benefit to the ameliorative powersupply quality.
2.copared with the fourth core of common 4-core cable ,thereactance value of concentric conductor is much lower underthe working condition of zero sequence, which improves thesensitive action of short-circuit auto-protection device andensure cable and relative equipments safe operation.
3.it has strong properties of anti-electromagnetic interfere-nce and anti-thunderstrike.
4.five-core cable is suitable for power supply of TN-S and TN-c-S system.
