IEC 60269-3:20 24 CMV包含官方标准及其注释版本。注释版本为您提供了一种快速简单的方法来比较IEC 60269-3:20 24版5.0和之前的IEC 60269-3:20 0+AMD1:2013+AMD2:2019 CSV版4.2之间的所有更改。此外，还提供了IEC SC 32B专家的意见，以解释最相关变更的原因，或澄清内容的任何部分。 IEC 60269-3:20 24分为四个熔断器系统，每个系统涉及供非熟练人员使用的标准化熔断器的具体示例。本部分仅适用于“gG”保险丝。不熟练的人没有技术知识或足够的经验。为了避免电可能产生的危险，熔断器标准的相关部分应提供使用中最大安全性的要求。IEC 60269-3提供了四种供非熟练人员使用的系统。制造商的文献中提供了保险丝安全操作的说明。所有系统都提供自己的机械解决方案，以避免使用具有更高额定电流（不可互换性）的保险丝，同时确保电缆和线路的保护。申请人必须小心更换相同类型的保险丝。

IEC 60269-3:2024 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 60269-3:2024 edition 5.0 and the previous IEC 60269-3:2010+AMD1:2013+AMD2:2019 CSV edition 4.2. Furthermore, comments from IEC SC 32B experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the content.

IEC 60269-3:2024 is divided into four fuse systems, each dealing with a specific example of standardized fuses for use by unskilled persons. This part applies to “gG” fuses only. Unskilled persons do not have technical knowledge or sufficient experience. To avoid dangers, which electricity may create, the relevant part of the fuse standard shall provide requirements for maximum safety in service. IEC 60269-3 provides four systems for use by unskilled persons. Instructions for the safe operation of fuse-links are provided in the manufacturer’s literature. All systems provide their own mechanical solution to avoid the use of a fuse-link with higher current rating (non-interchangeability) whereas the protection of cables and lines is ensured. The applicant is required to take care to replace a fuse-link by the same type.