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State system for ensuring the uniformity of measurements. Automatic potentiometers and balanced bridges. Methods and means of verification
Document status: Active
Hand-held motor-operated electric tools. Safety and test methods. Part 2-3. Particular requirements for grinders, polishers and disk-type sanders with rotational movement of operating tools
Document status: Active
Occupational safety standards system. Electrical safety. Methods for calculating the probable value of the incident energy of an electric arc in electrical installations
Document status: Active
System of design documents for construction. Graphic symbols of electrical equipment and wiring on plans
Document status: Active
Supporting constructions and their fastening elements for railway overhead contact system. General specifications
Document status: Active