Almost every piece of electrical equipment we use on a boat will have a label or a manual that tells us its demand for amperage its output in watts or both we have the understanding to begin to take charge of our marine 12 volt systems for example we can determine the rating for a fuse or circuit breaker and we can select the proper . One of the least understood aspects of a boats electrical system and the most troublesome is the proper method of grounding that we often get questions of whether ac or dc electrical equipment should be grounded to the boats bonding system is illustrative of this point. E 11 ac and dc electrical systems on boats based on abycs assessment of the existing technology and the problems associated with achieving the goals of this standard abyc recommends compliance with this standard for all systems and associated equipment manufactured and or installed after july 31 2009. Basic electricity for boat builders repairers and owners what you need to know about the electrical systems on your boat basic electricity dc circuits someone discovered that electrical equipment such as ac motors run best at between 50 and 60 cycles we in america chose to use 60 the rest of the world opted for 50 also most of . The key to a trouble free marine electrical system is an understanding of what why and where what the wire is connected to why is it there and where does it lead the 3 ws the wiring on some of the larger boats can be quite complex with both ac and dc circuits along with inverters and generators
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