本指南中的一般信息旨在帮助评估太阳辐射对户外金属封闭开关设备的影响，例如，适用于户外金属封闭断路器电源开关设备、金属包覆开关设备、金属封闭断续器开关设备、金属封闭气体绝缘开关设备、控制配电盘、金属封闭母线、，以及垫装式开关设备。具体数据以电流-温度关系和表格形式给出，用于户外金属封闭低压电力断路器开关设备、户外金属包覆开关设备和户外金属封闭断续器开关设备。

The general information in this guide is intended to assist in evaluating the effect of solar radiation on outdoor metal-enclosed switchgear, and is, for example, applicable to outdoor metal-enclosed circuit breaker power switchgear, metal-clad switchgear, metal-enclosed interrupter switchgear, metal-enclosed gas insulated switchgear, control switchboards, metal-enclosed bus, and pad-mounted switchgear. Specific data are given in current-temperature relationship, and tabulation form for its application to outdoor metal-enclosed low-voltage power circuit breaker switchgear, outdoor metal-clad switchgear, and outdoor metal-enclosed interrupter switchgear.