Flexible fire-proof cable and its producing process and producing device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 上海胜武电缆有限公司
- Publication Date
- 2005-03-02
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 Figure 2 Figure 3
Abstract
Description
[0001] (1) Technology area
[0002] The invention belongs to the field of cables, in particular to a power cable and its production process and production equipment. (2) Background technology
[0003] Existing power cables are usually insulated with organic materials such as rubber, plastic, etc. When the power cable line catches fire, the insulating material will be completely burned, and smoke and harmful substances will be emitted. Some improved organic material insulated cables, although the smoke will be significantly reduced when burning, and the release of harmful substances will be improved, but once the fire burns, the wire and cable line will not continue to work. Insulated cables with metal oxides such as magnesium oxide powder as insulation and metal tubes as sheaths improve the above shortcomings, but the manufacturing method is complicated, the process is long, and there are many equipments, such as image 3 Shown: Firstly, MgO ceramic pillars must be threaded on...