標準號：IS 1026-1984
發布日期：1984/10/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍： This standard covers the requirements for the following types of trailing cables for use in quarries and metalliferous mines:a) Three and four-core pliable armoured flexible cables with general service or heat resisting elastomeric insulation suitable for working voltages up to and including 1100 V between conductors.b) Four-core pliable armoured flexible cables for earthed 3-phase system with heat resisting elastomeric insulation suitable for working voltage of 3·3 kV between conductors ( U° /U — 1·9/ 3·3 kV).c) Four-core pliable armoured flexible cables for earthed 3-phase system with heat resisting elastomeric insulation suitable for working voltage of 6·6 kV between conductors ( U° /U — 3·8/ 6·6 kV ).1.2 Gables for voltage grade up to and including 1100 V may be used in coal mines also.1.3 The cables covered in this standard are suitable for use where the combination of ambient temperature and temperature-rise due to load results in conductor temperature for normal sustained operation and for short circuit conditions not exceeding the following:Maximum Rated Conductor Maximum Conductor Temperature for Continuous Temperature During Operation Short Circuita) Elastomeric insulation for 60°C 200°C general serviceb) Heat-resisting elastomeric 90°C 250°C insulation