It’s absolutely imperative that if an in-line splice is fitted, it’s fully insulated and heat shrunk or a two piece environmental splice is used of the correct size & that the splice is put in a position to allow sufficient lead from the rectifier to ensure its under cover rather than left out in the open even with the insulation as mentioned. Bear in mind it carries the main positive output from the generator.
Also it’s advised to insulate the terminal on the bulkhead post too and ensure the connector is fully home and locked with the spare pin/socket hole environmentally sealed with sealing plugs.
Any electrical short on this positive line with the generator running will cause max current across the windings and burn them out & any short presented across the phases will have the same effect.
