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ZNY-4型电焊机介电强度试验装置通过技术鉴定。 广州电器科学研究所受成都电焊机研究所委托而研制成功能同时输出三组电压(1.5kV·2.5kV·4ky)的ZNY-4型电焊机专用工频耐压试验机(外形及其主要参数见本期封三),于今年10月10日在广州通过了行业技术鉴定。参加鉴定单位有成都电焊机研究所、上海电焊机厂、上海华东电焊机厂、北京电焊机厂、北京东升电焊机厂、沈阳电焊机厂、天津电焊机厂、淄博电焊机厂、广东电焊机厂、广州电焊机厂、广东江门仪表厂、广州电器科学研究所、等11个单位的20名代表。鉴定结果认为:
ZNY-4 electric welding machine dielectric strength test device passed technical appraisal. Guangzhou Electric Apparatus Research Institute was commissioned by the Chengdu Electric Welding Machine Research Institute to develop a special power frequency pressure testing machine for ZNY-4 type electric welding machine with the function of outputting three sets of voltage (1.5kV·2.5kV·4ky) at the same time (outline and main parameters See envelope 3 of this issue. On October 10th this year, a technical appraisal of the industry was passed in Guangzhou. Participating appraisal units include Chengdu Welding Machine Research Institute, Shanghai Welding Machine Factory, Shanghai Huadong Welding Machine Factory, Beijing Welding Machine Factory, Beijing Dongsheng Welding Machine Factory, Shenyang Welding Machine Factory, Tianjin Welding Machine Factory, Zibo Welding Machine Factory, and Guangdong Welding Machine. Factory, Guangzhou Welding Machine Factory, Guangdong Jiangmen Instrument Factory, Guangzhou Electric Apparatus Research Institute, and other 20 representatives of 11 units. The identification results suggest that: