IS 13109 : Part 21 : 1991 Specification for electronic equipment/systems for use in coal and metaliferrous mines: Part 21 Requirements for mine environmental telemonitoring systems

1 SCOPE

1.1 This standard covers the requirements for mine environmentaltelemonitoring systems for use in coal and metalliferrous mines.The standard excludes methane concentration above 5 percent sincecoal and metalliferrous mines are considered.

1.2 This standard shall be read in conjunction with IS 13109 :Part 1 : 1991.

2 References

IS 13109 : Part 1 :1991 Specification for electronicequipment/systemsfor use in coal and metalliferrous mines:Part 1 Definitions, general requirements and tests