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Posted By Topic: BMS compliance

Rhino
Apr 13 2018 08:02

What AS/NZS or IEC standards does a Battery management system need to meet to go on a 48V lithium battery bank used in 1.Stand alone, off grid system with Solar? And 2. hybrid grid-connected energy storage with solar?
… only really details functions required in ASnzs 5139
   

pluto
Apr 13 2018 12:06

Rhino Apr 13 2018 08:02
Your comments
What AS/NZS or IEC standards does a Battery management system need to meet to go on a 48V lithium battery bank used in
1.Stand alone, off grid system with Solar? And
2. hybrid grid-connected energy storage with solar?
… only really details functions required in ASnzs 5139.

My comments

AS/NZS 5139 is a new standard in the course of preperation and while it was released for public comments, the level of public comment received indicated that further work was required and this is has been under action for sometime and a further public comment draft will be released in the near future.

The status of AS/NZS 5139 is a draft document and should NOT be used for installations until formally approved, and that will be some time away, my guess it will be late 2018 before approval is sought and it wil also require an amendment of the ESR 2010.

The IEC have published IEC 62619 which covers safety requirements for large Lithium Batteries and is being used as a suitable refernce document in the current draft of AS/NZS 5139, it is the best document that I am aware of as a refernce text for lithium batteries.

Back to original questions
Due to the volume of work taken to getting AS/NZS 5139 fit for purpose, the required upgrading of AS/NZS 4509 and AS/NZS 4777 standards to cater for storage batteries has fallen behind the targeted dates for revision and updating. In the case of AS/NZS 4777 the use of MMI inverters has also fallen well behind in the revision of that standard.

In the meantime the manufacturers instruction have become the only document readily available and if the country of orign of the battery system is NOT IEC standards based, I would use the upmost caution that what you are installing is \"electrically safe\"in the terms of ESR 2010.