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what are your thoughts on the short piece of exposed wire between the pipe and the ceiling board feeding lights...i believe this is such a trivial thing and should not be regarded as a fault which will stop the issuing of a coc...so long as the joint is not done in the roof space.
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I agree, what I do, if the wires are more than a few inches, is to use a piece of PVC spragging. A slit down the side & clipped over the wires takes only a moment. My freebie for the day.
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what makes putting a piece od slit sprag over the wires any better?
is it to protect the wire is so...from what.
if it is to stop the dust and miggies getting in...that is hardly a solution.
and lastly what is the difference between a piece of house wire covered in a braid like sleeve laying in the roof and a piece of wire between a pipe and hole in the ceiling?Comment
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Dust & miggies won't harm the wire like rats. The sprag will afford some protection. Extending the conduit & fitting a bend & junction box will cost more than the public are prepared to pay. With the joint below the ceiling all service personel are protected against shock.
Alternatively a through box with a piece of surfix would be acceptable, but I still prefer the sprag because the rat will get tired of the plastic before getting to the conductors as opposed to T&E.Comment
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A one way pvc box allso works well, most domestic light fitings holes line up with the box holes, and fix with 2 m5's. Open conections in the light fitting itself are acceptable.
I use the Hellerman Tyton scotch lock, where you just skin and push in, very conviniant with short ends and hard to reach applications, however not sure if they are compliant.Comment
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Precisely why I use conduit for new installations. The guy selling his house is going to go with the lowest quote to bring his mess to standard though.Comment
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Scotch-locks is the name given for a number of quick couplers. The ones' telkom use are round and can only be used for 2 wires up to 1mm. The scotch locks referred to are a great product from Hellerman Tyton for connecting solid wires like T&E or Surfix up to 2.5mm. They do indeed comply with the requirements for connectors, but must still be enclosed in a junction box. An excellent replacement for screw connectors. They come in 2/3/4/5/6 and 8way blocks which are colour coded. Unfortunately they are scarce in PE, but whenever I can get my hands on some I load up with them. They are multi spring loaded and once used cannot be re-used.Comment
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I think I'm confused by the trade names. I would call what you're describing 'Wago's' link. Can you link to the item you describe?_______________________________________________
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you must be talking about this product helacon plus...brilliant i use them all the time.
http://www.hellermanntyton.us/products.aspx?cat=486
you can reuse them by the way...you just use a very thin pin type screwdrivers to release the wireComment
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Yip thats the one I use when I can get my hands on them. They are also referred to as scotch locks. I would not trust the spring to work 100% a second time though. Since they came out a good few years ago I have never had a single joint give problems where they were used. With the screw connectors one sometimes tends to over tighten then either the connectors breaks the one wire off or you shatter it by pressing it too hard. It is a pity they are not freely available here. Very user friendly and time efficient.
For comms I use the same as Telkom, it is a little round button which takes only two thin wires, it has a little insect repellant grease inside which also protects against moisture and just gets squeezed with your fingers over the un-stripped ends of your wires.Comment
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Andy, you can visit the hellrman tyton web page, these connectors are state of the art. I don't think they comply with Sans because I cant see a 2.5 mm drawing 16 - 19A, not enough grip.
i use them on lights only 10A, very confident, 15A max. remember a welder or heater drawing 15 - to 20A, lot of heat involved, especial on your joints.Comment
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according to the link i posted they are rated to 24 amp max
Features Double Spring Technology for safe, secure and reliable connections
Low Insertion Forces + High Retention Values
Accommodates both solid and stranded wire cores
Polycarbonate Housing for quick visual inspection; Meets UL 92V2 standards
Low insertion forces reduces buckling of stranded wire
Able to combine solid and stranded within same housing
Separate test port for fast, easy confirmation of connection
Quick Fit Insertion relieves installer in difficult spots like overhead installations, eliminates twisting motion and reduces overall assembly and connection time.
Max Current Rating to 24 A
Max Voltage Rating to 600 V (c UL us)Comment
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Yes he means WAGO.
They are pretty good. i brought back about 1000 of each when I can home from UK. Read up on them. They carry quite a bit of current. and they guarentee not to come free. They pretty expensive this side of the pond, but so convenient.
only thing i can say, is make sure you strip the cable properly and ensure that the solid strand goes all the way in. No flex wire either. Use a crimp!!Comment
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