标准摘要
[中文适用范围]： 本部分的特殊要求适用于拖车和房式拖车的电气装置。它们适用于用于拖车居住目的的电气电路和设备。它们不适用于用于汽车目的的电气电路和设备。它们不适用于移动房屋、住宅公园房屋和可运输单元的电气装置。注 1：对于移动房屋和住宅公园房屋，适用一般要求。注 2：对于可运输单元，参见 IEC 60364-7-717。注 3：就本文件而言，拖车和房式拖车统称为“拖车”。IEC 60364-7 系列的部分特殊要求也可适用于拖车中的此类装置，例如 IEC 60364-7-701。 [外文原描述]： IEC 60364-7-721:2017 lays down particular requirements applying to electrical circuits and equipment intended for the use of the caravan for habitation purposes. This new edition includes the following significant technical changes with respect to the previous edition: - a minimum height of not less than 500 mm above the base of the cylinders is now required for cables passing through the gas cylinder compartment; - it is now required that each independent installation shall be provided with its own main isolating switch which shall disconnect all live conductors and which shall be suitably placed in a readily accessible location in the caravan.
英文名称Low-voltage electrical installations - Part 7-721: Requirements for special installations or locations - Electrical installations in caravans and motor caravans