IS 7098 Pt.1-1988

标准号：IS 7098 Pt.1-1988
发布日期：1990/1/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard (Part 1) covers the requirements for both armoured and unarmoured single, twin, three, four and multi-core crosslinked polyethylene (XLPE) insulated and PVC sheathed cables for electric supply and control purposes.1.2 The cables covered in this standard are suitable for use on ac single phase or three phase (earthed or unearthed) systems for rated voltages up to and including 1 100 V. These cables may be used on dc systems for rated voltages up to and including 1 500 V to earth.Note — The cables conforming to this standard may be operated continuously at a power frequency voltage 10 percent higher than rated voltage.