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Thread: How does solid brass compare in resistance to 8AWG wire?

  1. #11
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    3 crimp lugs,
    1 bolt
    2 washers
    Locknut
    Yes I dig.
    Except it is 6 ie 2 bolts..

    Yes I thought of that, and I may do it. I have plenty of crimps on order.LOL

    The insulated block ones are attractive as I could put them in a box and bolt them down. Thoughts evolving..
    Regards PhilipA

  2. #12
    Homestar's Avatar
    Homestar is offline Super Moderator & CA manager Gold Subscriber
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    X2 for what Vern said - I’m also an Electrician and I’d solder it.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

  3. #13
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    Hi Philip,
    As a rule of thumb, brass is about 1/2 as conductive as copper.
    8AWG is (oddly) 8mm2, so you would need closer to 16mm2 of brass to get the same conductivity. I think from your description, your thinnest section is 0.5 x 10 so you would need to boost this x 3.
    While solder is a great solution a half decent crimp joint will out last solder by decades.

    Cheers Glen

  4. #14
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    Quote Originally Posted by PhilipA View Post
    Yes I dig.
    Except it is 6 ie 2 bolts..

    Yes I thought of that, and I may do it. I have plenty of crimps on order.LOL

    The insulated block ones are attractive as I could put them in a box and bolt them down. Thoughts evolving..
    Regards PhilipA
    I only needs one Phillip


    ***********=
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    One lug facing down
    Single lug doesnt matter orientation
    Other lug facing up

    Bolt together with shortest bolt whislt retaining bite of Nyloc

  5. #15
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    A 50mm off-cut of 1/2" copper pipe flattened in a vise and drilled at each end to take an M6 nut and bolt works well as a buzz bar. Cables terminated with lugs and attached thereto. The whole lot then housed in a small plastic "Systema" housing with the clip on-lid (bought from Woolworths). Can use grommets to seal the housing .... works well ... total cost $5-6
    MY99 RR P38 HSE 4.6 (Thor) gone (to Tasmania)
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  6. #16
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    Thanks for that .
    I have tentatively decided on plan B which is 6x8B&S eye lugs crimped with my humungous crimper, bolted to either insulated towers which have not yet arrived, or just bolted and placed in a jaycar alloy box, as the caravan will see dirt roads such as Great Central etc. along with lashings of Sikaflex where I drill the holes for the wires.
    Very similar to your idea.
    Regards PhilipA

  7. #17
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    Philip, You are overthinking this.
    The additional resistance of a short piece of brass will be insignificant.
    Also don't think of cable coming in and cable going out. Electrically you will be connecting all wires together.

  8. #18
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    Giant connector is your friend here….
    NLS 30399 | 2 X 35mm Heavy Duty Double Screw Connector

  9. #19
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    Not quite that big ,but that is what I originally made the joint from, but concerned that the two in May fall out with vibration.
    regards PhilipA

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