An extruded insulating tube busbar and its manufacturing method

Abstract

The invention discloses a novel pressingly wrapping type insulation tubular busbar and a manufacturing method thereof. The manufacturing method of the novel pressingly wrapping type insulation tubular busbar includes the following steps of: a, surface treatment of a tubular busbar core material; b, tubular busbar core material connection; c, tubular busbar core material preheating; d, semi-conducting layer and insulating layer co-extrusion; e, cooling; f, cutting and length determination; g, shielding and grounding processing; and h, protective bushing wrapping. A product which is obtained through adopting the above method includes a protective layer, a shielding and grounding layer, an insulating layer, a semi-conducting layer and a tubular busbar core material. According to the novel pressingly wrapping type insulation tubular busbar and the manufacturing method thereof of the invention, a material which is obtained through mixing 60 to 95% of high-elastic modulus ethylene-propylene-diene monomer rubber and 5 to 40% of crosslinked polyethylene, is adopted to replace a traditional hard bushing, and therefore, the product can have an excellent insulation property and an excellent bending property.

Description

technical field [0001] The invention relates to an extruded insulating tubular busbar and a production method thereof. Background technique [0002] Insulated tubular bus has been recognized and accepted by more and more customers due to its characteristics of high current, high mechanical strength, good insulation performance and wide application range, and has been widely used in power transmission and transformation lines. At present, most of the insulating layers of insulating tubular busbars produced in China adopt the method of layering and wrapping PTFE oriented film manually, but this method is prone to air bubbles or sliding of the insulating layer, which is easy to affect the product High quality and insulation effect, and this process has high requirements on the personal skills and working conditions of workers, the product quality is prone to fluctuations due to human factors, and because of manual winding, the production efficiency is low. Contents of the inv...

AI Technical Summary

Problems solved by technology

At present, most of the insulating layers of insulating tubular busbars produced in China adopt the method of layering and wrapping PTFE oriented film manually, but this method is prone to air bubbles or sliding of the insulating layer, which is easy to affect the product quality and insulation effect, and this process has high requirements on the personal skills and working conditions of the workers, the product quality is prone to fluctuations due to human factors, and because of manual winding, the production efficiency is low

Images