RD

1972

RD 34.20.174-72
RD 34.20.174-72
Methodology for the development of regional maps of normative ice regions used in the design and operation of power lines
RD 34.20.512-72
RD 34.20.512-72
Guidelines for smelting ice on overhead lines up to 20 kV in rural areas
RD 34.47.101-72
RD 34.47.101-72
Guidelines for the selection of DC cable cross-section for supplying control electromagnets to oil and air circuit breakers
RD 34.48.151-72
RD 34.48.151-72
Norms of technological design of dispatching points and nodes SDTU power systems
RDI 1-72
RDI 1-72
Instructions for state supervision of the implementation and compliance with standards and technical conditions
RDI 2-72
RDI 2-72
Instructions on the procedure for preparing by the institutions of the USSR State Standard information materials (reports) on the most important domestic and foreign achievements in the field of standardization, improving product quality and metrology

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