Tricky Wire Connection

Hi all,

advice required: I need to make some waterproof connections between a very
thick cable and a much thinner one.

I’m using some ~4mm diameter cable to run 5V (for LEDs) power over a
distance of up to 8m. The maximum possible current is 18A (although in
normal use it’ll be much, much less than this).

I need to step the size down to a ~1mm diameter cable in order to make
connections to the LED strip at the other end. I would prefer to use small
junction boxes, but I need to make 48 of these connections - so that’s
wouldn’t be time or cost effective.

I’m thinking of using either a series of butt splice connectors, or perhaps
big wire nuts (but I don’t have any experience with these). Can anyone
recommend either of these approaches?
Is there a better solution you know about?

Chris

In your case I’d be looking at some sort of quick release sprung
connections. What gauge of wire are you using for the 18 Amps? At least
4mm cross sectional area at a guess…

The waterproof part is the issue…I use a lot of these:

http://uk.farnell.com/wago/224-201/terminal-block-pluggable-1pos/dp/1283495?ost=1283495&categoryId=&categoryName=

However I think these are more what you might be looking for…Grease the
cable ends and wrap them in insulating tape to increase water resistance
once you are up and running or heatshrink over the top…

http://uk.farnell.com/wago/222-412/terminal-block-pluggable-2pos/dp/1300511?MER=baynote-1300511-pr

Hope this helps.

AlexOn 5 November 2015 at 14:29, Chris Ball chrisballprojects@gmail.com wrote:

Hi all,

advice required: I need to make some waterproof connections between a very
thick cable and a much thinner one.

I’m using some ~4mm diameter cable to run 5V (for LEDs) power over a
distance of up to 8m. The maximum possible current is 18A (although in
normal use it’ll be much, much less than this).

I need to step the size down to a ~1mm diameter cable in order to make
connections to the LED strip at the other end. I would prefer to use small
junction boxes, but I need to make 48 of these connections - so that’s
wouldn’t be time or cost effective.

I’m thinking of using either a series of butt splice connectors, or
perhaps big wire nuts (but I don’t have any experience with these). Can
anyone recommend either of these approaches?
Is there a better solution you know about?

Chris


You received this message because you are subscribed to the Google Groups
"Hackspace Manchester" group.
To unsubscribe from this group and stop receiving emails from it, send an
email to hacman+unsubscribe@googlegroups.com.
To post to this group, send email to hacman@googlegroups.com.
Visit this group at http://groups.google.com/group/hacman.
For more options, visit https://groups.google.com/d/optout.