Всем доброго дня!
Я извиняюсь за скорость выкладывания протоколов, но к сожалению моё транспортное средство не оборудовано такими прелестями современной жизни, как джакузи, спутниковая связь, сканер и т.д. , а на работе приходится работу работать.
Поэтому протоколы пока в электронном виде ( те ,кто очень хотел получили оригиналы на месте).
Подписанные с печатями завтра к обеду.
Децибе́л — логарифмическая единица уровней, затуханий и усилений.
Величина, выраженная в децибелах, численно равна десятичному логарифму безразмерного отношения физической величины к одноимённой физической величине, принимаемой за исходную, умноженному на десять.
Переход от дБ к «разам»:
1 дБ → в 1,25 раза,
3 дБ → в 2 раза,
6 дБ → в 4 раза,
9 дБ → в 8 раз,
10 дБ → в 10 раз,
12 дБ → в 16 раз,
15 дБ → в 32 раз,
18 дБ → в 64 раз,
20 дБ → в 100 раз.
Следовательно при уровне шума 93 дБ шум превышает допустимый в 20 раз.
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