MT/T 834-1999 General technical condition of winding signalling for coal mine

GB 1251.1-1989 Danger signals for work places—Auditory danger signals GB 14778-1993 General rules of coloured light for safety GB 156-1993 GB 16541-1996 Safety technical requirements for shaft cage hoisting signal system GB 191-1990 GB 2829-1987 GB 3836.1-1983 GB 3836.2-1983 GB 3836.3-1983 GB 3836.4-1983 GB/T 4942.2-1993 Degrees of protection provided by enclosures for low-voltage apparatus GB/T 5080.1-1986 Equipment reliability testing—General requirements GB/T 5080.7-1986 Equipment reliability testing Compliance test plans for failure rate and mean time between failures assuming constant failure rate GB/T 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13926.2-1992 GB/T 13926.3-1992 GB/T 13926.4-1992 MT 209-1990 The general technical requirements for electrical products used in coal mine communication, detection, and control MT 210-1990 The basic test methods for electrical products used in coal mine communication, detection, and control MT 286-1992 The method for preparing model numbers and management methods for coal mine communication and automation products MT 287-1992 Mine signal equipment general technical specification MT/T 408-1995 Coal mine DC voltage stabilizer power supply