Training, Installation & Service Manual - Livewire Connections Ltd

Alternative grounding for fibre glass hulls
F.5.2
Grounding the ADU
If the mounting base of the ADU is electrically connected to any
other ground potential than the ACU (e.g. Lightning Ground), the
ADU must be isolated at its mounting bolts by means of shoulder
bushings and washers - see section F.6.3.
However, a ground connection must be established via one of the
mounting bolts using a separate ground cable. The ground cable
must be routed parallel and in close proximity to the shielded coax
cable hence connecting the ADU to the ACU Grounding kit. A heavy
gauge wire with tinned strands (min. 6 mm 2 ) can be used for this
purpose.
Figure F-5: Alternative grounding for fibreglass hulls
F-10 Appendix F: Grounding and RF protection 98-133966-E2