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Public Consultation: PAS 63100 Electrical installations – Protection against fire of battery energy storage systems for use in dwellings – Specification

gkenyon

The Draft of the new PAS 63100 standard for protection against fire of battery energy storage systems for use in dwellings is now available for public comment on BSI’s Standards Development web-site.

The public commenting period commences 26 June 2023, and on closes on 24 July 2023.

This topic is directly related to domestic storage installations accordance with BS 7671 and the IET Code of Practice for Electrical Energy Storage Systems.

  • in reply to AJJewsbury

    As I understand the situation it is not the stored electrical energy that is the problem but the various elements used to construct the battery that will burn without an external oxygen supply. Petrol and diesel fires can be extinguished by cutting off the oxygen with foam or powder. The lithium based batteries keep burning.

  • in reply to Roger B

    This can also be taken one step further.  1 EV on fire can ignite the next EV on fire thus causing a chain reaction of fires igniting with a furiotious burn akin to a rocket taking off

  • in reply to Sergio Fernandez

    1 EV on fire can ignite the next EV on fire thus causing a chain reaction of fires

    same with liquid fuel vehicles.

    As I understand the situation it is not the stored electrical energy that is the problem but the various elements used to construct the battery that will burn without an external oxygen supply. Petrol and diesel fires can be extinguished by cutting off the oxygen with foam or powder. The lithium based batteries keep burning.

    A bit of both I suspect. I would have thought conventional firefighting techniques (e.g. water) could keep the area around a burning EV cool enough to prevent the fire spreading, even if its own batteries continued to pyrolyse.

    For comparison, thousands of petrol/diesel vehicles bust into flames of their own accord every year (often due a simple fuel leak in the engine compartment) - happened to a good friend of mine on the motorway a few years back in an almost new car. Things can be a long way from perfect and still be no worse than they are already.

       - Andy.

  • One very interesting observation:-

    • The (draft) BSI document on how to install batteries in a house: 24 pages long.
    • The (draft) IET document on how to install an electric car charger: 249 pages.
  • in reply to Simon Barker
    Simon Barker said:
    The (draft) BSI document on how to install batteries in a house: 24 pages long.

    Another interesting observation.

    The (draft) BSI document refers for the electrical requirements to BS 7671 (600 pages long) and the IET Code of Practice for Electrical Energy Storage Systems (174 pages long), and BS 5839-6, etc.

    The issue being, the BSI document ONLY covers fire safety requirements for installing battery storage systems in DWELLINGS ...

    Simon Barker said:
    The (draft) IET document on how to install an electric car charger: 249 pages.

    And, although I know I've replied to this point you've raised before, the draft contained tracked changes, so is around 50 pages longer than the final version will be ...

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