Grounding
Firewall grounding bus for all power connections.
- Every circuit has a separate ground return.
- Prevents electrical interference.
Do not use the airframe as a power ground.
- It is acceptable to use the wing spars as a ground return for wing wiring
- I ran a ground wire from the spars to the firewall.
Shielded wire grounds can be grounded to the airframe/panel at one end only
- Don’t use the shield to carry power.