IEC 60794-6:2020是一个分规范，涵盖了适用于室外和室内环境的光纤电缆的一般特性，称为“室内-室外电缆”。室内-室外电缆部署在室外工厂环境以及室内，从而满足室外和室内要求。例如，典型的应用空间是将管道电缆延伸到建筑物中，或在中央办公室、房屋或局域网中使用这种设计进行集中布线，其中相同的电缆用于整个布线链路，包括室内和室外部分。IEC 60794规定的电缆通常具有与室外电缆设计相关的特性，具有热稳定性和机械稳定性，使其适合在室外设备中使用，同时具有相对灵活、紧凑和轻质，并具有室内场所所需的防火性能- 6-10. IEC 60794-6-20中规定的阻燃室外电缆在大部分电缆长度部署为室外电缆，部分电缆长度部署在室内时使用。根据IEC 60794-3中描述的产品规范，电缆设计可以从典型的室外电缆设计中衍生出来。根据安装情况和消防性能，与弯曲半径相关的具体性能（根据区域立法），主要要求结合其他材料和/或设计考虑，适当选择导管架材料。由于在空间限制更严格的建筑物中使用，安装通常需要更高的电缆灵活性。通常，首选直径较小的电缆。按照IEC 60794规定进行防风雨处理的室内电缆- 当室内电缆在室外短距离（几米）使用时，例如当网络接入点（NAP）非常靠近建筑物时，使用6-30）。室内-室外光纤电缆设计可以从室内设计（典型应用见IEC 60794-2和IEC TR 62901）衍生而来，并添加特定的室外性能特征。关键参数是紫外线稳定性和耐湿性。

IEC 60794-6:2020 is a sectional specification covering general features of optical fibre cables applicable to outdoor as well as indoor environments, called "indoor-outdoor cables". Indoor-outdoor cables are deployed in outside plant environments as well as in premises thus fulfilling outdoor as well as indoor requirements. Typical application spaces are, for example, extension of a duct cable into a building or using this design for centralized cabling in the central office, the premises or local area network where the same cable is used for the entire length of the cabling link including both the indoor as well as the outdoor portions. Cables which generally possess the characteristics associated with outdoor cable designs having the thermal and mechanical robustness that makes them suitable for use in the outside plant, while simultaneously being relatively flexible, compact and lightweight and exhibiting the fire performance required in indoor premises are specified in IEC 60794-6-10. Flame retardant outdoor cables as specified in IEC 60794-6-20 are used when most of the cable length is deployed as an outdoor cable with a part of its length deployed indoors. The cable design can be derived from a typical outdoor cable design according to the product specifications described in IEC 60794-3. The specific performance related to bend radii according to the installation situation and fire performance according to the regional legislation mainly requires the appropriate selection of the jacket material in combination with other material and/or design considerations. Because of the use in buildings with tighter space restrictions, higher flexibility of the cable is often required for the installation. Often, smaller diameter cables are preferred. Indoor cables which are weatherised as specified in (IEC 60794-6-30) are used when an indoor cable is used outdoors over a short distance (few meters), for example when the network access point (NAP) is very close to the building. The indoor-outdoor fibre optical cable design can be derived from an indoor design (see IEC 60794-2 and IEC TR 62901 for typical applications) with specific outdoor performance features added. Critical parameters are UV stability, and resistance against exposure to humidity.