Post by alanr on Oct 16, 2016 18:00:25 GMT
Just a heads up regarding the electrical conductivity of carbon fibre.Which when you think about it is obvious but it was something that hadn't registered in my brain whilst I was building my Bristell.
One day before I had purchased and had fitted the permanent lithium battery to my aircraft I was calibrating my Dynon Skyview fuel gauges using jump leads from a car battery on the floor alongside the aircraft when the + lead came adrift and touched the inside of the carbon fibre cowling which instantly caused a short across the carbon fibre engine cowl electrically conducting through the airframe to ground!
It could have caused a serious fire had it not been very quickly noticed. A minor burn mark was the outcome but it could have been much, much worse!
I am now very careful with the routing of leads, battery charger etc that go anywhere near the carbon fibre engine cowls.
Alan
G-CIPT
One day before I had purchased and had fitted the permanent lithium battery to my aircraft I was calibrating my Dynon Skyview fuel gauges using jump leads from a car battery on the floor alongside the aircraft when the + lead came adrift and touched the inside of the carbon fibre cowling which instantly caused a short across the carbon fibre engine cowl electrically conducting through the airframe to ground!
It could have caused a serious fire had it not been very quickly noticed. A minor burn mark was the outcome but it could have been much, much worse!
I am now very careful with the routing of leads, battery charger etc that go anywhere near the carbon fibre engine cowls.
Alan
G-CIPT