標準號：IS 691-1984
發布日期：1985/4/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：1.1 This standard covers the requirements for the following types of cables suitable for working voltages up to and including 1 100 volts for electrical equipment used in coal mines:a) Flexible cables for use with coal cutters and for similar purposes;b) Flexible cables for use with hand-held portable machines, such as drills and picks; andc) Pliable armoured, flexible cables for use with:i) conveyers, loaders and similar transportable machines, ii) remote control circuits, and iii) coal-face lighting.1.2 Cables covered in this standard may be used in other types of mines also.1.3 These cables are suitable for use where the combination of ambient temperature and temperature-rise due to load results in conductor temperature not exceeding the following for normal sustained operation and for short circuit conditions:Maximum Rated Conductor Maximum Conductor Temperature for Temperature DuringContinuous Operation Short Circuita) Elastomeric insulation 60° C 200°Cfor general serviceb) Heat resisting elasto-meric insulation 90°C 250°C