广播电视中心和台、站天线工作安全规程
broadcasting and television centers, sites, and stations Safety rules of antenna operations
1989-01-01
GY 61-1989
广播电视中心和台、站机械维修安全规程
broadcasting and television centers, sites, and stations Safety rules of mechanical maintenance
1989-01-01
GY/T 59-1989
广播电视中心和台、站电气设备大修、交接和预防性试验技术要求
Electrical equipment at broadcasting and television centers, sites, and stations Technical requirements for overhauls, takeovers, and preventive tests
1989-01-01
GY/T 60-1989
广播电视中心和台、站电气设备大修、交接和预防性试验常用方法
Overhauls, takeovers, and common preventive test methods for electrical equipment at broadcasting and television centers, sites, and stations