绝缘型伴热电力电缆

Insulation type heat tracing power cable

  • Inventors: HE YAOWEI
  • Assignees: 何耀威
  • Publication Date: October 08, 2014
  • Publication Number: CN-203871051-U

Abstract

本实用新型公开了一种绝缘型伴热电力电缆,包括护套层,设置在护套层内的地线、发热线和回路线,在护套层内设有绝缘层和耐火层,发热线包括发热导体和设置在发热导体外侧的集热管,在集热管内设有储热填充层,回路线包括回路导体,设置在回路导体外侧的内层绝缘管,在内层绝缘管外侧设有屏蔽层,在屏蔽层的外侧设有外层绝缘管,在内层绝缘管和外层绝缘管之间均设有绝缘填充层,在地线、发热线和回路线之间设有玻璃纤维丝网层。本实用新型的结构简单,降低了电缆的制作成本,而且回路线的外侧还设有内、外绝缘管在内、外绝缘管之间设有屏蔽层,一定程度上提高了伴热电缆的使用稳定性和屏蔽性,适用性好,实用性强。
The utility model discloses an insulation type heat tracing power cable comprising a sheath layer, and a ground wire, a heating wire and a loop wire arranged in the sheath layer; an insulation layer and a fireproof layer are arranged in the sheath layer; the heating wire comprises a heating conductor and a heat-collecting tube arranged outside the heating conductor; a heat storage filling layer is arranged in the heat-collecting tube; the loop wire comprises a loop conductor and an inner layer insulation pipe arranged outside the loop conductor; a shield layer is arranged outside the inner layer insulation pipe; an outer layer insulation pipe is arranged outside the shield layer; an insulation filling layer is arranged between the inner layer insulation layer and the outer layer insulation pipe; a glass fiber netting layer is arranged among the ground wire, the heating wire and the loop wire. The insulation type heat tracing power cable is simple in structure, reduces cable making cost, and the inner and outer insulation pipes are arranged outside the loop wire; the shield layer is arranged among the inner and outer insulation pipes, so usage stability and shield property of the heat tracing cable can be improved with certain level; the power cable is good in suitability and strong in practicality.

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