wiring this way okay? |
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Jack1991
Registered User Joined: 05 February 2020 Location: Bristol Status: Offline Points: 491 |
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Would a inline fuse on the head unit positive cable be ok?
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Xoc1
Registered User Joined: 15 October 2012 Location: Devon UK Status: Offline Points: 397 |
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It will be OK but unnecessary as previously said
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JonB67
Young Croc Joined: 22 April 2016 Location: UK Status: Offline Points: 1376 |
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Yes, that's fine.
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Jack1991
Registered User Joined: 05 February 2020 Location: Bristol Status: Offline Points: 491 |
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Cool perfect thank you! Want to make sure i dont f it up. Cheers guys 👍🏼
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mk2_ginger_biscuit69
Old Croc Joined: 03 November 2008 Location: Brighton Status: Offline Points: 7801 |
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to clarify, you need a fuse immediately post battery on the supply - before the amplifier.
my HU fuse comment related to having a link from amp to HU. Long as the initial fuse prevents the battery dumping its capacity on a short - essentially being a welder, all is well. |
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JonB67
Young Croc Joined: 22 April 2016 Location: UK Status: Offline Points: 1376 |
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Its easier to understand what you're doing is right if you know why you're doing it.
Basically you shouldn't have leads from the battery terminal that dont have fuses on them (as biscuits has said, close to the terminal) If you do and it touches anything or the sheathing gets cut or a component failure etc, there's nothing to stop the battery trying to put all its stored energy through the cable,. Things get hot and fires start. So if you wire the units one after the other as your diagram, one fuse is fine. If you put a second feed for the hu or something else on as biscuits suggests you could, that also needs a fuse close to the battery. Every cable needs a fuse. If you take power from a point that's already got a fuse somewhere between the point you're taking power from and the battery that's ok, if not you need to add a new fuse. I know I've basically said what's been said already, but id rather you understood what you're doing than just did it because we said it was fine. Less likely to make mistakes if you can think it through for yourself. Edit for clarity of terminology!
Edited by JonB67 - 16 February 2020 at 9:32am |
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Jack1991
Registered User Joined: 05 February 2020 Location: Bristol Status: Offline Points: 491 |
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Thank you mate that is an absolutely perfect explanation. And thankyou ginger_biscuit too makes sense now. 🙂👍🏼
Edited by Jack1991 - 16 February 2020 at 9:55am |
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