精选优质文档-倾情为你奉上IEC 60364.4.43-2008LOW-VOLTAGE ELECTRICAL INSTALLATIONS-3Part 4-43: Protection for safety Protection against overcurrent434.2.2 A protective device may be placed on the supply side of the reduced cross-sectional area or another change made, provided that it possesses an operating characteristic such that it protects the wiring situated on the load side against short-circuit, in accordance with 434.5.2.NOTE The requirements of 434.2.2 may be met by the method given in A