Electrical installations of buildings. Part 5. Selection and erection of electrical equipment. Section 534. Devices for protection against surge overvoltages
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering methods for an essentially free field over a reflecting plane
Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 2-032. Particular requirements for hand-held and hand-manipulated current sensors for electrical test and measurement
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