stevegbr
Administrator 
ADMIN
BIRMINGHAM
Posts: 10,359
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Post by stevegbr on Jan 18, 2021 8:52:08 GMT
is there a gauge chart or something to see what wiring should be used on superdreams.?
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Post by marktrower on Jan 18, 2021 18:50:03 GMT
i do not know of a chart that is specially for the superdream and all the looms i have had made or have acquired second hand one's this site was recommended but way over my pay grade.the site is 12 VOLT PLANET enjoy
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terryb
Full Member
Rebuilding my CB450DX
Posts: 73
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Post by terryb on Jan 18, 2021 20:45:46 GMT
Below is a basic explanation of cable sizes. I hope I'm not teaching anyone to suck eggs. Hopefully it will help :-) PLEASE NOTE that I am not an expert so anyone please feel free to correct me if you feel that I may be wrong or misleading. Its great for us all to learn something. Auto Electrics Supplies have the pdf link below to convert the American AWG to mm2 www.autoelectricsupplies.co.uk/cms/files/awg_to_mm2_conversion_data.pdfThey also list the current rating and mm2 size for their cables which is very helpful. www.autoelectricsupplies.co.uk/product/70/category/114To calculate the cable required you require the watts of the item being supplied ie if the headlight is 55 watts you divide the 55w by the 12 volts = 4.6 amps If you have multiple devices on the same circuit you add up the watts and divide that total by the 12v. Then you need a cable that can cope with that amount of amps plus a few for safety. The fuse should be rated below the total amount of amps that the cable can handle. NOTE: The fuse is to protect the cable from over heating and catching fire, its not there to protect the appliance ie the headlight. From what is listed on the above website a 1.0mm2 cable can handle a maximum 16.5Amps. This would be ok for your headlight and main beam (2x55watts = 110watts / 12v = 9.1Amps), the fuse would be rated at 10 or 15amps. If you feel that the cable rating of 16.5amps is to close to the 15amp fuse rating then either use the 10amp fuse or perhaps go up a size in cable to the 2mm2 which can handle 25amps keeping a good safety gap. I actually prefer a larger size cable (with in reason) as 1mm2 looks very small and its safer for the cable to be over rated than under or close to the limit. Always make sure that your earth back to the battery is as large as the supply cable. Some times the earth is used for multiple circuits so make sure it can handle the current load (amps) for all the circuits being fed as they may be powered on at the same time. Ie don't run multiple 1mm2 supply cables out to all your circuits then just one 1mm2 cable earth back to the battery as it will not be able to handle the current. Below is a website that will calculate the amps for you if you have the watts and volts. www.electricalsafetyfirst.org.uk/watts-to-amps-calculator/The other good place to look is Revival Motorcycles website. They have some great videos and tech info on charging circuits and wiring Motogadget items. Below is a link to their tech info: technicalarticles.revivalcycles.com/hc/en-us/categories/360000739571-Charging-systems-and-BatteriesBelow is a link to their Tech Videos revivalcycles.com/motorcycle-videos/playlist/Revival%20Cycles%20Tech%20TalkHope this is useful info. Thanks Terry |
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terryb
Full Member
Rebuilding my CB450DX
Posts: 73
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Post by terryb on Jan 18, 2021 20:52:53 GMT
It might help, im not sure what you are looking for but attached is a picture of a CB450DX wiring loom which will be slightly different to a SuperDream.  |
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terryb
Full Member
Rebuilding my CB450DX
Posts: 73
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Post by terryb on Jan 18, 2021 21:11:45 GMT
Last thing, Ive just read through the website that Mark Trower listed and its a great read so very helpful.
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Post by andy1kenobe on Jan 18, 2021 21:14:06 GMT
There are some manufacturers that put the cable size in their wiring diagrams along with the colour, but I am pretty sure Honda wasn't one of them though. My background is industrial electronics, and if there is no spec available for the cable size, you just measure the diameter of the strand and count the number of strands in that cable. You then know what's been used. For example, 17/0.2 would be a cable with 17 strands each measuring 0.2mm in diameter. Any decent supplier will be able to give you the cable if you gave them this info.
It's quite easy to make a new loom if you have the old one as a pattern. Get a piece of board, lay the old loom out and put panel pins in the board to mark the shape. Lay your new cables between the pins and use your preferred method to hold them together, cable ties, heat shrink, sheath or even cable lace! Then put your connectors on. Done this on classic cars a few times but not a bike...yet.
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Post by marktrower on Jan 18, 2021 21:29:55 GMT
Glad you did Terry I found emmerdal more interesting. Nas who lives next door his brother fits sound systems in to cars he gave me the site
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