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LEARN YOUR LINES! How to draw a quality wiring diagram | Ask The Expert with NIGEL CALDER

September 27, 2024 · 2 min · 3K views

What this video covers

Nigel Calder and Jan Attenstedt explain how to build a quality marine wiring diagram, prompted by a viewer who submitted a substandard one.0:08 Calder recommends starting at the batteries and mapping all high-current circuits first, to verify conductor sizing and confirm correct overcurrent protection on each run.0:46 He notes that tracing hidden wiring on an older, modified boat is difficult but that the process itself builds electrical understanding better than any other exercise, and makes later troubleshooting faster.2:16 Attenstedt describes the BoatHowTo approach: the Boat Electrics 101 course uses EasyEDA, a free browser-based schematic tool, and the BoatHowTo website hosts a symbol library plus three example wiring diagrams drawn from the course's running examples.1:14 Both hosts stress that the diagram must be updated after every change, however small, or it becomes useless.2:35 Calder acknowledges he has always drawn diagrams by hand, calling it a painful process that produces cluttered results.0:32

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