If a purchase is not feasible, there are legitimate ways to the standard for free, thanks to public access initiatives.
Some websites may offer unauthorized PDFs. This is a significant legal and security risk. For example, a search may lead to a WeChat article providing a link to a Baidu Pan (cloud storage) copy. Unofficial copies may be outdated, contain errors, or harbor malware. Using them could violate your professional ethics and jeopardize your company's compliance status. iec 61869-1 pdf free download
This standard is the for instrument transformers. It serves as the "umbrella" standard for more specific types like current and voltage transformers. Key areas covered: If a purchase is not feasible, there are
If you represent a legitimate training organization or a testing lab, you can write to the IEC or your local standards body requesting a review copy for educational purposes. This is a long shot but possible for non-profits. For example, a search may lead to a
Mandatory tests performed on every individual transformer before it leaves the factory floor (e.g., power-frequency voltage withstand tests, partial discharge measurements).
that establishes general requirements for newly manufactured instrument transformers. It is a foundational document intended to be read in conjunction with specific part standards (like Part 2 for current transformers or Part 3 for inductive voltage transformers). IEC Webstore 1. Scope and Application Voltage Range