Synthetic resin polymer for pouring of fire-proof medium-voltage bus

Abstract

The invention relates to a synthetic resin polymer for pouring of a fire-proof medium-voltage bus. The synthetic resin polymer comprises epoxy resin, a polyamide curing agent, a modified amine curing agent, quartz sand and ceramic zinc borate, wherein epoxy resin accounts for 42 to 48 percent of the polymer by weight; the polyamide curing agent accounts for 6 to 12 percent of the polymer by weight; the modified amine curing agent accounts for 4 to 6 percent of the polymer by weight; the granularities of the quartz sand are 10 to 150 meshes; quartz sand which is 10 to 50-mesh accounts for 12 to 16 percent of the polymer by weight; quartz sand which is 50 to 80-mesh accounts for 8 to 12 percent of the polymer by weight; quartz sandwhich is 80 to 150-mesh accounts for 8 to 12 percent of the polymer by weight; ceramic zinc borate accounts for 8 to 10 percent of the polymer by weight. The synthetic resin polymer can be poured outside a copper conductor, and cured into an insulating layer, and a glass ceramic layer starts to be formed when the temperature is 550 to 600 DEG C. Therefore, flame retardancy, smoke suppression, dripping resistance and ash firing inhibiting effect are high.

Description

technical field [0001] The invention relates to an insulating material, and specifically discloses a synthetic resin polymer used for pouring a refractory medium-voltage busbar. Background technique [0002] In the existing power transmission technology, the application of the busbar can be seen everywhere; the insulating layer on the surface of the busbar is mostly made of epoxy resin, and sometimes the insulating layer of the busbar is ignited due to external factors or improper human operation, because of the characteristics of the epoxy resin itself, Lead to further spread of the fire and increase economic losses. [0003] Chinese Patent No. 201010539326.3, patent name: synthetic resin composition for cast-in-place medium-voltage busbar, which is composed of epoxy resin, polyamide curing agent, modified amine curing agent and quartz sand; The weight percentage in the composition is 45%-50%; the weight percentage of polyamide curing agent in the composition is 10-13%; th...

AI Technical Summary

Problems solved by technology

The insulating layer casted by the composition has poor effects of flame retardancy, smoke suppression, drip resistance, and ember combustion suppression

[0004] Zinc borate is currently added as a flame retardant, but it decomposes into powder at 550-600°C, cannot form a vitrified ceramic layer, and cannot play the role of flame retardancy, smoke suppression, and anti-dripping; when it is above 700°C, it decomposes more Serious, it cannot play the role of fire prevention and fire resistance; and its appearance is irregular square, with obvious edges and corners, easy to thicken, not suitable for high proportion filling