If you've ever seen overhead lines and wondered what they look like up close then here's your chance without being electrocuted in the process.
In this video I look at bare overhead copper wires and their spacers and also the new ABC Aerial Bundled Cable/Conductor lines.
If you work in power distribution let me know in the comment section how you've found reliability of the ABC cable in your part of the world.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
In this video I look at bare overhead copper wires and their spacers and also the new ABC Aerial Bundled Cable/Conductor lines.
If you work in power distribution let me know in the comment section how you've found reliability of the ABC cable in your part of the world.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
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I really like primary and secondary overhead distribution lines with these bare conductors, it's nostalgic, even more so when joining mercury lamps and wooden poles.
A curiosity: The secondary bare aluminum conductor is the same as the primary one, why? Despite being thin, the ampacity is formidable. In small neighborhood branch feeder systems, 13,800 volts and 127/220 volts share the same gauge, 4 AWG 21mm², if the transformers are 75kVA.
The 13.8kV trunk feeders use 4/0 107.2 to 125mm² for 5MVA, I already had a piece that came in my glass string insulator. But you rarely see this gauge of bare conductor in the secondary (Maybe in São Paulo maybe it has, since the industrial electrical load there is much higher than here in Porto Alegre RS)… But now these spiral aluminum duplexes, triplexes and quadruplexes, much thicker, have become a trend in Brazil.
Street lighting: 16mm² (And standard home input up to 11kW)
Secondary for 127/220V streets: 35mm² for 75kVA transformers, 70-120mm² for 112.5kVA transformers.
You still see low voltage with four classic three-phase wires, with 1/0 53mm² conductors that are enough to carry the current.
Having bare copper wire outside sounds extremely dangerous to the workers and people around them should it fall. I've never seen uninsulated lines in my area.
"Thick, black ribbed" and "Rigid".
Less than two minutes into the video, and you're already excelling yourself, with the euphemisms. 😁
Noalox is the grease used in those connectors we also use silicone grease .We also have neutral supported cables ,ASCR a stainless steel center wire wrapped with aluminum wires .We use split bolt/Burndy connectors for connections .They use a PVC spreader to separate the conductors .
Yeah but what are the three phases?
A simple question if I may? I need to extend an overhead single phase 230V supply which has three insulated single core cables. Copper I presume. The outside diameter of the insulation is 6mm. Please can someone tell me what size cable I need to get to extend it and where I could order it online? 50 metres would be more than enough. Thanks!
and to think automotive types scoff at Scotchloks for adding components to cars when they're identical in design to this. Cheers Clive, very informative and interesting as always.
in NZ we use similar connectors, however they are not made of plastic, and seem quite reliable
Remember the "vampire taps" for "thicknet" ethernet (10BASE5)?
its ribbed for your pleasure
I don't think that first cable is (pure) copper . Pure copper is not strong and is more bendy, So probably they added a few % of another metal so cable wouldn't break under the considerable tension , although this would increase resistance slightly .
A bolt together Scotch-lock!