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ＲＱＪＳ—２×２６０／６６０Ｓ型矿用隔爆兼本安型软起动装置是由上海北陆技术开发有限公司，在１９９５年研制的水泥厂矿山原料（石灰石）胶带输送机软起动装置的基础上开发研制的。经工业试用考核，达到设计标准。于１９９７年１２月通过部级鉴定（煤部科鉴字［１９９...
RQJS-2 × 260 / 660S mine flameproof and intrinsically safe soft starter device is the Shanghai Hokuriku Technology Development Co., Ltd., developed in 1995 on the basis of cement plant raw materials (limestone) belt conveyor soft start device Developed. After the industrial trial assessment, to design standards. In December 1997 through ministerial identification (Coal Division Kejian [199 ...