Insulation construction of electrical machinery with previously insulated preformed winding sections. Test method for determination of thermal endurance
State system for ensuring the uniformity of measurements. Instruments for measuring the smoke of exhaust gases from the motor vehicles equipped with compression-ignition engines. Verification method
Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 7. Phase sequence
