How do chaps long time no post. Been busy with the build and finally got her running!
I emailed
approvals@vosa.gsi.gov.uk to ask about the possible roll bar problem and this is the response.
Good afternoon Tom,
The reason for the slight confusion here is that the requirements for a
roll bar differ dramatically from that of a seat belt anchorage point. As a
roll bar, the IVA examination simply needs to establish that the bar is
suitably attached to the vehicle structure. However, if you then attach a
seat belt mounting point to a roll bar, it becomes a seat belt anchorage
and is then assessed as such. The main requirement for a seat belt
anchorage is that it can withstand a pulling force in the region of 1.5
tonnes per anchorage. Therefore, this bar will be expected to withstand
more than 3 tonnes of force, as it has two anchorage points fitted.
Obviously, this will require a very substantial mounting arrangement to
acheive that. A very useful guide to seat belt anchorage strength assesment
can be found at Annex 3 in section 19 (Seat Belt Anchorages) of the IVA M1
manual. I have therefore attached a link to the latest version of the guide
below:
IVA MANUALS -
https://www.gov.uk/vehicle-approval/...proval-manuals
So still not really any clearer i think as long as its solid enough we should be ok also going to make sure we have this email when we go for the test so we can at least say we have looked into it and interpreted it as been ok.
Other than that we've just been plodding on with the electrics.