Drag cable connection process method

Abstract

The invention discloses a drag cable connection process method. The connection of a single-phase wire core comprises three steps firstly, conductor wires of two broken ends of a cable are divided intoa number of strands, wherein the conductor wires are to be connected to a wire core of the same phase; secondly, the split conductor wires of the phase wire core of two broken ends in the previous step are respectively folded from the middle, and folded hooks are mutually hooked in a one-to-one corresponding manner; thirdly, the folded-back sections of the conductor wires after the folding pointin previous step are sequentially staggered to pass through gaps between adjacent strands of retained sections before the folding point, and repeated recycling, successive interspersing and weaving together are carried out until the weaving of the length of the folded-back sections is completed; after weaving is completed, a single wire core joint is insulated. The method can ensure the over-electric cross-sectional area of the conductor wires, can ensure the tensile stress of the cable being dragged, and ensures safe and reliable power supply. The process method has the advantages of simple and easy operation and low transformation cost, and has a promotion value.

Description

technical field [0001] The invention belongs to the technical field of electric engineering, and in particular relates to a dragging cable connection process method. Background technique [0002] Due to the advantages of energy saving, environmental protection, and high efficiency of electric loaders, the main mining equipment in domestic and foreign mines is mostly electric loaders. Take the EST-3.5 electric scraper with a voltage level of 1000v as an example for the mining equipment of a certain mountain mine. Since the electric scraper has no cable discharge device, the underground working environment is harsh, and dragging cables often occur after it is put into production. Scratched, pulled off. The equipment uses 1000V voltage, and its voltage level is relatively high. It is impossible to use the damaged cable without proper treatment, and it also brings a very large safety hazard to the operator. If it is replaced with a new one every time, the production cost will ...

AI Technical Summary

Problems solved by technology

The equipment uses 1000V voltage, and its voltage level is relatively high. It is impossible to use the damaged cable without proper treatment, and it also brings a very large safety hazard to the operator.

If it is replaced with a new one every time, the production cost will be greatly increased due to the high price of the towing cable, and the overall benefit of the mine will be greatly affected.

[0003] For the connection of the broken dragging cable, the existing electrician wiring technology cannot meet the requirements of safe use for a long time. The cross-sectional area of ​​the conductor at the contact point is small, which cannot meet the requirements of carrying the power, and becomes a risk point that is likely to cause safety accidents, or the overall cross-section of the cable joint is much larger than the original cable itself, which affects the dragging of the cable and is not beautiful

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