GOST 11648-75

Low-voltage electrical installations. Part 4-44. Safety requirements. Protection against voltage disturbances and electromagnetic disturbances

State system for ensuring the uniformity of measurements. Analogue electronic a.c. Voltmeters. Methods of verification

Connecting devices for low voltage circuits for household and similar purposes. Part 2-2. Particular requirements for connecting devices as separate entities with screwless-type clamping units

Microphones and earphones for speech communications

Electromagnetic compatibility of technical equipment. Electromagnetic disturbance from technical equipment intended for use in residential, commercial and light-industry environments. Limits and test methods

Oval steel tubes. Range