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【Ежедневная тема】【Электротехническое издание 20160618】

2016-06-18View Original

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Награда за участие: 2 богатства. Награда за правильный ответ: 9 богатств. Проверка правильности: площадь поперечного сечения заземляющего провода должна быть не меньше 16 мм²; в отсутствие многожильных мягких медных проводов в качестве замены можно использовать алюминиевые спиральные провода.

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