Input Output Norms for transformers define permissible imported components and require use matching for export compliance, including oil exclusion rule.

Standard input output norms prescribe permissible inputs and per unit weight norms for manufacture of copper wound three phase oil cooled transformers, with net to net treatment for certain components. If transformers are exported without the MS tank and transformer oil, transformer oil or oil base stock inputs are disallowed. Applicants must ensure imported goods are those actually used in the export product and determine proportions of inputs applied to each resultant product for compliance.

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