As pointed out in another comment and previously on HN, my new favourite source ...

lstamour on July 20, 2021 | parent | context | favorite | on: Publicly Available Standards

As pointed out in another comment and previously on HN, my new favourite source for specs are regional English translations from Estonia. Here’s one for IEC 61362 for 22 EUR: https://www.evs.ee/en/evs-en-61362-2012