Connecting devices. Safety requirements for screw-type and screwless-type clamping units for electrical copper conductors. Part 2. Particular requirements for conductors from 35 up to 300 sq. mm
State system for ensuring the uniformity of measurements. State primary standard and state verification schedule for means measuring vibration displacement, vibration velocity and vibration acceleration over the frequency range from 1·10 -1 to 2·10 4 Hz
