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Another (probably daft) question about sockets (Read 90 times)
Natedog
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Another (probably daft) question about sockets
Aug 1st, 2021, 1:15pm
 
I'm fitting some metalclad sockets inside a steel box that's going to house a cctv unit.  It's going to have 2x double sockets.  Someone suggested joining the 2 back boxes together with a 20mm conduit coupler and some threaded bushes, so they are one rigid unit.  

Usually you would put a rubber grommet on the knockout to stop the cable chafing.  If I join 2 boxes together, does it still need something to stop chafing, or is making sure there are no sharp or rough edges on the bush good enough?
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Lectrician
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Re: Another (probably daft) question about sockets
Reply #1 - Aug 8th, 2021, 9:01pm
 
No.  The bush is better than a grommet.  Conduit coupler and bushes to join boxes, a TRS gland to allow supply cable in.  It provides restraint, where a grommet won’t.
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Natedog
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Re: Another (probably daft) question about sockets
Reply #2 - Aug 19th, 2021, 11:48pm
 
Thanks dude  Grin
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