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Post by Robbo on Jun 1, 2016 8:54:20 GMT
I've got a hydraulic crimper, about £40, so a cheapo one and can be often seen on ebay. I would recommend them if your doing any type of battery wiring as it's nice to have cables at just the right length!
Another recommendation is to get clear heat shrink so you can label your cables up nicely.
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Post by peterboat on Jun 1, 2016 10:47:01 GMT
I just love soldering! on LPG conversion the instruction in italian was the joints must all be welded I think they meant soldered. I just love to see solder flow when you get it right sad isnt it?
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Post by Robbo on Jun 1, 2016 11:08:45 GMT
I just love soldering! on LPG conversion the instruction in italian was the joints must all be welded I think they meant soldered. I just love to see solder flow when you get it right sad isnt it? Know what you mean, but a mechanical connection is far better.
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Post by JohnV on Jun 1, 2016 11:23:15 GMT
when I was learning my trade (as Foxy would have it "in Queen Victoria's day") sweating (or soldering) lugs onto cables was a standard way. For various reasons it is now frowned upon. Personally I think a lot of the reasons are more theoretical than practical (I have often come across sweated terminals that are 50 or 60 years old and still perfect) but under some conditions crimping is more reliable. If you wish to avoid the displeasure of surveyors/inspectors then you need to pander to their illusions
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Post by peterboat on Jun 1, 2016 11:23:46 GMT
I just love soldering! on LPG conversion the instruction in italian was the joints must all be welded I think they meant soldered. I just love to see solder flow when you get it right sad isnt it? Know what you mean, but a mechanical connection is far better. Why?
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Post by JohnV on Jun 1, 2016 11:33:18 GMT
one reason frequently given is bend radius at the joint can be compromised due to solder "wicking" up between strands causing a stiffened section of cable. another is that if the joint gets very hot the solder can soften and crystalise (dry joint)and the joint can then become high resistance and heat up even more and the cable will then just slide out of the connector as the solder softens (no mechanical joint) solder joints can also be susceptible to corrosion damage in saline air conditions
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Post by peterboat on Jun 1, 2016 12:09:59 GMT
I do crimp and solder it works better for me I have seen to many failed crimped joints
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Post by JohnV on Jun 1, 2016 14:02:40 GMT
As I said I think the dangers and failings are a bit exaggerated but I conform, The MCA can be a big enough pain without me giving them an opening.
On failed crimp connections all the ones I have come across were because they weren't done properly or were done with inferior crimps/tools
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Post by JohnV on Jun 1, 2016 14:10:54 GMT
I've got a hydraulic crimper, about £40, so a cheapo one and can be often seen on ebay. I would recommend them if your doing any type of battery wiring as it's nice to have cables at just the right length! Another recommendation is to get clear heat shrink so you can label your cables up nicely. The price you quoted has just sunk in ............. one pair of spare inserts for my crimper cost nearly that !!!!! (mark you it does go up to 630mm)
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Post by peterboat on Jun 1, 2016 14:55:39 GMT
As I said I think the dangers and failings are a bit exaggerated but I conform, The MCA can be a big enough pain without me giving them an opening. On failed crimp connections all the ones I have come across were because they weren't done properly or were done with inferior crimps/tools I agree with you but like the belt and braces system always a good joint and never any issues with dry joints
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Post by PaulG2 on Jun 1, 2016 15:33:35 GMT
I've got a hydraulic crimper, about £40, so a cheapo one and can be often seen on ebay. I would recommend them if your doing any type of battery wiring as it's nice to have cables at just the right length! Another recommendation is to get clear heat shrink so you can label your cables up nicely. The price you quoted has just sunk in ............. one pair of spare inserts for my crimper cost nearly that !!!!! (mark you it does go up to 630mm) Hold on a minute there, Sparky. Did you put in an extra zero? 630mm is a tad over 24". My father, who had been an Electrician's Mate 1st Class in the US Navy during WWII, always used to say, " Soldering is not to make a connection, it is to hold it together. First you make a good connection, then you solder it." His time was before the age of decent wire nuts and a lot of the other cool connectors we have today, though. I seldom solder anything, but then, I don't work on electronics or low voltage DC. I dunno if soldering connections after crimping is the best way to go or not, but, if it is, I'd certainly go the extra step and solder the connections because soldering is so easy to do. I know I wouldn't use anything but a good quality hydraulic crimper. If you've gone to the trouble of wiring a circuit, why anyone would want to cheap-out on the most important part of the process is beyond me. Spanish has a word for solder, soldar, and s/he who solders would be a soldador, but I've never heard that word used in the trades. They all say weldar/weldador. Maybe it's the same thing in Italian....
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Post by Deleted on Jun 1, 2016 15:42:40 GMT
The price you quoted has just sunk in ............. one pair of spare inserts for my crimper cost nearly that !!!!! (mark you it does go up to 630mm) Hold on a minute there, Sparky. Did you put in an extra zero? 630mm is a tad over 24". My father, who had been an Electrician's Mate 1st Class in the US Navy during WWII, always used to say, " Soldering is not to make a connection, it is to hold it together. First you make a good connection, then you solder it." His time was before the age of decent wire nuts and a lot of the other cool connectors we have today, though. I seldom solder anything, but then, I don't work on electronics or low voltage DC. I dunno if soldering connections after crimping is the best way to go or not, but, if it is, I'd certainly go the extra step and solder the connections because soldering is so easy to do. I know I wouldn't use anything but a good quality hydraulic crimper. If you've gone to the trouble of wiring a circuit, why anyone would want to cheap-out on the most important part of the process is beyond me. Spanish has a word for solder, soldar, and s/he who solders would be a soldador, but I've never heard that word used in the trades. They all say weldar/weldador. Maybe it's the same thing in Italian.... Thought for a minute Paul you were going to discuss the merits of "Good Joints" rather than good connections.Sixties San Francisco and all that
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Post by JohnV on Jun 1, 2016 15:44:17 GMT
The price you quoted has just sunk in ............. one pair of spare inserts for my crimper cost nearly that !!!!! (mark you it does go up to 630mm) Hold on a minute there, Sparky. Did you put in an extra zero? 630m is a tad over 24".mMy father, who had been an Electrician's Mate 1st Class in the US Navy during WWII, always used to say, " Soldering is not to make a connection, it is to hold it together. First you make a good connection, then you solder it." His time was before the age of decent wire nuts and a lot of the other cool connectors we have today, though. I seldom solder anything, but then, I don't work on electronics or low voltage DC. I dunno if soldering connections after crimping is the best way to go or not, but, if it is, I'd certainly go the extra step and solder the connections because soldering is so easy to do. I know I wouldn't use anything but a good quality hydraulic crimper. If you've gone to the trouble of wiring a circuit, why anyone would want to cheap-out on the most important part of the process is beyond me. Spanish has a word for solder, soldar, and s/he who solders would be a soldador, but I've never heard that word used in the trades. They all say weldar/weldador. Maybe it's the same thing in Italian.... That is 630mmsq but typical trade laziness ......... all sparkys drop the sq . If you phone up a wholesaler and ask for 400 mil tri-rate .... they know exactly what you mean. I forget sometimes I'm not talking to people familiar with the terms
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Post by Robbo on Jun 1, 2016 15:57:04 GMT
I do crimp and solder it works better for me I have seen to many failed crimped joints If you do a crimp right, they won't be anywhere for the solder to go!
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Post by peterboat on Jun 1, 2016 17:00:35 GMT
I do crimp and solder it works better for me I have seen to many failed crimped joints If you do a crimp right, they won't be anywhere for the solder to go! I live in hope but the solder always seem to disappear somewhere!!
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