I think it's a matter of using sense and judgement here, yes the various potential risks involved with this sport are many and varied (you'd not think to make an insurance claim on the BRCA if you slipped on some wet astro turf as a rain storm and broke a bone would you for example).
When it comes to how we use our equipment I don't think you can go far wrong by following the guidelines in the manufactures documentation and that of the BRCA.
As for the question about lists for homologated equipment it's here
http://www.brca.org/?q=content/homol...1-updates/1402
As for if LiPo sacks are of any use I have no idea, luckily I've never seen a LiPo go up, but if the BRCA say I need on then I need one!