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???? ?? ????? ??? SAE J1495-2018 ???????? ?????? ???????? ???? ??????????? ?????? ??? ??, ?? ??????? ???? ???? ???? ???? ????? ??????? ????????? ??? ??. ??? ???-????????? ?? (????? 2.5% ?? ???) ?? ????? ????? ??????? ????, ????? ????? ????? ??? ???? ??? ?????? ????? ???? ??, ?? ??????? ???????? ??? ????? ???? ????? ??. ?????? ??????? ??????? ???????? 12 ??????? ??????? ??? ?? ??????? ??????????? ????? ??? ??, ????? ?????? ???? ????? ???? ?? ??? ???????? ????? ??. IEC60254 ????? ?????? 400 ?????? ??? ??????? ??????, ???? ?? ????? ????? ???????? ???????? ?????? ??? ??, ?? ???? ????????? ???? ???????? ?????? ????? ?? ????? ????????? ??????? ???? ????????? ????? ????? ??.