IS 3347 : Part 1 : Sec 1 : 1979 Title: Dimensions for Porcelain Transformer Bushings for Use in Lightly Polluted Atmospheres - Part 1 : Up to and including 1 kV - Section 1 : Porcelain Parts Format: Print Pages: 10 Year: 1979 Publisher: Bureau of Indian Standards Availability: Out of Stock