33KV 36KV 40.5KV 63KV 90KV 145KV 150KV 200KV 280KV One, use: Is exempt from the overvoltage harm for the single cable to desig

Electric cable armor coat protector:one, use:  Is exempt from the overvoltage harm for the single cable to design. Two, materials behaviors: By imports the ZNO material after the special handling is the cassette mechanism, the integrated compression casting becomes. Has the seal, artisticly, durable and so on merits.Three, principles of work, the electrical specification

Four, technical standards: DL/T401   GB11032-2000    IEC60099-4