Arc-quenching compositions for high voltage current limiting fuses and circuit interrupters
申请人:EATON CORPORATION
公开号:EP0641005A2
公开(公告)日:1995-03-01
The invention is directed to an arc-quenching coating compositions having effective arc-quenching properties and improved track resistance properties that are relatively easy to apply and operationally positioned in high voltage current limiting fuses or expulsion fuses, circuit breakers, circuit interrupters, separable cable connectors, or the like. The arc-quenching coating composition comprises an arc-quenching material (A) and a film-forming polymer (B) having minimal tracking properties, wherein the film-forming polymer (B) acts as a liquid vehicle for the coating composition. The arc-quenching material (A) is preferably selected from the group of guanidine, guanidine carbonate, guanidine acetate, 1,3-diphenylguanidine, guanine, melamine, melamine cyanurate, urea, hydantoin, allantoin and derivatives and mixtures thereof. The film-forming polymer (B) is preferably selected from the group of urethane, acrylic, melamine-formaldehyde and derivatives and mixtures thereof.
The invention is also directed to an arc-quenching composition having effective arc-extinguishing properties, and improved non-tracking properties and thermal stability selected from the group of guanidine carbonate, guanidine acetate, 1,3-diphenyl-guanidine, guanine, melamine cyanurate, urea, hydantoin and allantoin.
本发明涉及一种熄弧涂层组合物,该组合物具有有效的熄弧性能和改进的抗跟踪性能,相对易于应用并可在高压限流熔断器或驱逐熔断器、断路器、断路器、可分离电缆连接器或类似装置中进行操作定位。熄弧涂层组合物包括熄弧材料(A)和具有最小跟踪特性的成膜聚合物(B),其中成膜聚合物(B)用作涂层组合物的液体载体。熄弧材料(A)最好选自
胍、
碳酸胍、
醋酸胍、1,3-二
苯基胍、
胍、
三聚氰胺、
氰尿酸三聚氰胺、
尿素、海因、
尿囊素及其衍
生物和混合物。成膜聚合物(B)最好选自聚
氨酯、
丙烯酸、
三聚氰胺-
甲醛及其衍
生物和混合物。
本发明还涉及一种熄弧组合物,该组合物具有有效的熄弧性能,并改善了非跟踪性能和热稳定性,选自
碳酸胍、
醋酸胍、1,3-二
苯基胍、
胍、
氰尿酸三聚氰胺、
脲、海因和
尿囊素组。