His chalk line had a bend in it... :lol:Snapester, just out of interest, why did you step the downlight out in the entrance way?
Hi..I want share my Star Delta Starter Control Panel For Chiller Water Pump..
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That’s about my luck Tel, fix one thing and then the next in the chain goes belly up!!
Nice and tidy panel though.
The boss' last CU in an eco house we just completed.
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Not having a pop, just a general observation based purely on my own views on CU/DB cable terminations... The overall CU cable dressing arrangement looks pretty much fine to me...
Is it normal not to use crimped terminations for multi stranded cables such as those flying leads supplied on RCBO's etc?? Don't really like to see bare conductors on bars or entering device terminations either....
Is it normal not to use crimped terminations for multi stranded cables such as those flying leads supplied on RCBO's etc?? Don't really like to see bare conductors on bars or entering device terminations either....
Yes, it's typical. Usually the fine stranded cables to the RCDs and RCBOs are factory-welded at the ends (not soldered) to provide a solid lump for the end of the screw to clamp down onto.
Yes, it's typical. Usually the fine stranded cables to the RCDs and RCBOs are factory-welded at the ends (not soldered) to provide a solid lump for the end of the screw to clamp down onto.
That's it. The fly leads came out of the box like this (copper showing), the gaffer sorts them on his final once over and tidies up anything like that (tightening screws, etc). This was just a quick pic inbetween times (before he was finished) as the cupboard was tiny and I didn't want to get in his way!
Yes, it's typical. Usually the fine stranded cables to the RCDs and RCBOs are factory-welded at the ends (not soldered) to provide a solid lump for the end of the screw to clamp down onto.
And if the RCD/RCBO flying leads are cut to size to suit the installation and dressing of cables?? Why would you then not use a crimped termination??
The other thing i notice on many of the CU installations shown on this and other threads, is the tenancy to bend/dress the 10 or 16mm in or out of the devices, immediately as they leave the device termination. Thus always leaving exposed bare conductor.... Can't understand why these bigger cables aren't dressed into the CU devices, similar to those of the final circuits??...
And if the RCD/RCBO flying leads are cut to size to suit the installation and dressing of cables?? Why would you then not use a crimped termination??
The other thing i notice on many of the CU installations shown on this and other threads, is the tenancy to bend/dress the 10 or 16mm in or out of the devices, immediately as they leave the device termination. Thus always leaving exposed bare conductor.... Can't understand why these bigger cables aren't dressed into the CU devices, similar to those of the final circuits??...
Indeed, if you cut the "welded" ends off, then a crimp or bootlace ferrule would be ideal.
The 16mm² into the RCDs is usually already in place when you buy the CU. The very fine stranding, and therefore great flexibility of the cables means that the cable often won't stay put, even if you attempt to dress it neatly. The tendency is to leave well alone and just check the tightness of the terminal screws. If you remove the wire and trim the end back to bring the insulation down to the body of the device, you run into the possibility of those fine strands getting loose and needing to put a crimp on as above.
BS 951 earth clamps on suppliers cables are a no no
especially as it looks like a paper insulated lead sheathed oil filled cable
I tink they call it the big bang theory !!
also I would not take a maine earth from such a cable you are far safer using an electrode unless the supplier tells you its ok
Amp David....
No idea about Wylex CU's, but i would have thought that at least 2 or 3+ of the terminals on the Neutral bar(s) would be suitable for 16mm cable or more. A 16mm cable crimp, be it ferrule bootlace or pin, will not be anywhere near that of the actual cable CSA.
A few control panels I've designed and built.
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Personally I would have butted the adaptable box and the CU up to each other purely for aesthetic reasons, also used a smaller adaptable box to save cutting into the timber frame, I hope the frame isn't bearing much weight. Also run the earth back through the box and out of the bottom, but that's just me.
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The way the box is mounted the ship lap will allow water to run straight onto the mating surface of the outlet, I would bring it out with a couple of batons just to be safe.
Ra of 37 ohms is good, get another rod in and get better, it's all good practice.
Edit: Blinding flash of light... Why not terminate the SWA straight into the CU as it's a plastic enclosure, just don't connect the earth/armour fly lead?
It was fibreglass or ABS from RS. It had to be non-ferrous as it was used on a glueing station where the operators taped a magnet to the glue gun and stuck it to the previous (metal) enclosure, the glue got everywhere gumming up a keyswitch and pushbuttons. I also made the aluminium guard below to protect the wiring from the same problems.
I would have used a metal or more rigid adaptable box in the shed, the SWA is distorting the box in picture (just asthetics). Where the T&E transitions to SWA, I've always drilled a hole at the side of the gland and bolted the earth ring to the box, then use a second nut to hold ring crimp on earth wire.
How did you get on pulling T&E through the tube, would singles have been easier?
what make is that enclosure in pic 1