RD 34.20.116-93

Operational regulations of power stations and grids of the Russian Federation

Operation and repair of process pipelines operating under pressure up to 10.0 MPa (100 kgf/square centimeter)

Instruction on visual and measuring testing

Maintenance requirements for protective relaying and control system switchgear for 0.4-35 kV networks

State system for ensuring the uniformity of measurements. Recommendation on the registration of requests, applications and documents attached to them when approving the type of measuring instruments and making changes to the information about them contained in the federal information fund for ensuring the uniformity of measurements

Positive material identification of the main and welding materials and finished goods