IEC 60077-5:20 19作为IEC 60077-5:20 19 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60077-5:20 19给出了高压（HV）保险丝的附加或修订规则，作为IEC 60077-2给出的规则的补充。所涉及的高压熔断器是连接到电源和/或辅助电路中的那些。根据IEC 60850，这些电路的标称电压在600 V DC和3 000 V DC之间。这些保险丝也可用于额定电压高达1 500 V的辅助交流电路。本文件与IEC 60077-2一起具体说明: a)熔断器的特性； b)熔断器符合的使用条件，参考: -正常服务中的操作和行为；-短路情况下的操作和行为； -介电性质。 c)为确认熔断器在使用条件下是否符合特性而进行的试验，以及为这些试验所采用的方法； d)保险丝上标记或随保险丝提供的信息。 第二版取消并取代了2003年发行的第一版。与上一版相比，此版本包括以下主要技术变更: a)审查了用于验证断裂强度的试验任务III的试验方法。

IEC 60077-5:2019 is available as IEC 60077-5:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60077-5:2019 give additional or amended rules for high voltage (HV) fuses as a supplement to those given by IEC 60077-2. The high voltage fuses concerned are those connected into power and/or auxiliary circuits. The nominal voltage of these circuits lies between 600 V DC and 3 000 V DC, according to IEC 60850. These fuses can also be used in auxiliary AC circuits up to a nominal voltage of 1 500 V. This document together with IEC 60077-2 states specifically:
a) the characteristics of the fuses;
b) the service conditions with which the fuses comply with reference to:
- operation and behaviour in normal service;
- operation and behaviour in case of short circuit;
- dielectric properties.
c) the tests intended for confirming the compliance of the fuse with the characteristics under the service conditions and the methods adopted for these tests;
d) the information marked on, or given with, the fuse.
This second edition cancels and replaces the first edition, issued in 2003. This edition includes the following main technical changes with regard to the previous edition:
a) test method of test duty III for verification of breaking capacity is reviewed.