Specification for insulating oil for transformers and switchgear (low viscosity
Indian Standards Institution
Specification for insulating oil for transformers and switchgear (low viscosity - New Delhi 1953 - 14 p. - IS-335; Indian Standards Inst .
Specification for insulating oil for transformers and switchgear (low viscosity - New Delhi 1953 - 14 p. - IS-335; Indian Standards Inst .