Plastics Methods Of Testing Part 8 Permanence chemical Properties Section 13 Determination of Changes in Colour and Variations in Properties After Exposure to Daylight Under Glass Natural Weathering or Laboratory Light Sources First Revision of IS 1
High-Voltage Switchgear and Controlgear Part 200 a.c. Metal-Enclosed Switchgear and Controlgear for Rated Voltages Above 1 kV Up to and Including 52 kV ( First Revision )