3.3.2 Insulation.Insulation shall be as specified on the applicable specification sheet.. except silicone rubber coated glass fabric tape insulation shall be as specified in 3.3.2.1
3.3.2.1 Silicone rubber coated glass fabric tape. The silicone rubber coated glass fabric tape insulation shall. before application to a conductor,have a dielectric strength of not less than
475 V per mil for tapes which are less than 8.8 mils thick,and 575 V per mil for tapes which are 6.9 mils or more in thickness. These dielectric strength values shall be met after the tapes have
been conditioned for 24 hours at 23 degrees.
celsius (c) and 96 percent relative humidity and tested while maintaining temperature and humidity conditions in accordance with the short time dielectric breakdown test in accordance with ASTM D
1458 , Extruded silicone rubber insulation shall have a specific gravity of not more than 1.55 . other physical and electrical properties shall be as specified in the specification sheets.
Silicone rubber coated glass fabric tape