Compressed air foam water mist fire extinguishing system for urban integrated transformer substation cable trench
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
- Publication Date
- 2022-05-27
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Abstract
Description
technical field
[0001] The invention relates to a compressed air foam fine water mist fire extinguishing system for a cable trench of an urban integration type substation, and belongs to the technical field of fire protection for the cable trench of an urban integration type substation. Background technique
[0002] In view of the difficulty in planning and construction of urban substations, three types of urban integration substations, "environmentally integrated substations", "adjacent integrated substations" and "embedded integrated substations", have been proposed to promote the integrated development of power grids and cities. Promote the coordinated and integrated development of substations and urban buildings, transmission lines and urban utility tunnels.
[0003] The cable runs safely during normal operation, but when it is under overload, short circuit, local overheating and other fault conditions and under the action of external heat, it will cause the insulation r...