Connecting low voltage wires in the attic

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Old 10-06-11, 06:32 PM
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Connecting low voltage wires in the attic

I need to extend an existing low voltage wire in the attic for a few more feet, it is for a chime.

Is it better to use a wire nut to do so, or is using those heat shrink butt splice with the melting solder in the middle?

 
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Old 10-06-11, 06:39 PM
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Use the right size wire nut. No reason to get all fancy (and more trouble). Clean the wires, twist and make sure the nut is tight. Should be fine.
 
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Old 10-07-11, 05:27 AM
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Like Vic, I would just use a small wire nut. I don't think the butt splices shown in the picture go small enough for an 18 ga or smaller.
 
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Old 10-07-11, 09:30 AM
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I would also just use a small wirenut, but here's a more authoritative source on splicing standards.
 
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Old 10-07-11, 11:01 AM
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Hey...it's not rocket science! lol
 
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Old 10-08-11, 04:54 AM
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Originally Posted by pcboss View Post
I don't think the butt splices shown in the picture go small enough for an 18 ga or smaller.
Correct. Blue is for 14g to 16g. Use red butt connectors for 18g to 20g.

Whenever we splice LV cables we make the splice inside a box. Plastic if the cable is unshielded; a metal box grounded to building ground if the cables are shielded and carrying audio or video signals. Never splice Cat5 or Cat6 (use punch blocks). Never splice TV cable (use F connectors and a barrel).
 
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