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Discuss SWA/wiska box/piranha nuts in the Electrical Forum area at ElectriciansForums.net

pirate

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Some assistance please.
simple job really, 3-core 4mm SWA to be glanded into a box with a 20mm S gland, and piranha nut.
I'm not familiar with the Wiska brand, but as it gets a good name I thought I'd try a couple. Was looking at the 206, but frankly I get easily confused so maybe one of you might suggest the best box.
Thank you.
 

darkwood

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I think the whisker boxes are pre threaded to 20mm thus been plastic are not really suitable for swa earthing, the piranha nut simply will not fit, I would get a standard IP rated plastic box and gland as normal using the earth ring or piranha nut as required.
 

mattg4321

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You can use the wiska gland plates
 

ipf

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Aren't they threaded 20mm entries, P. Have a job on with the earth locking nut. Get the metal plate arrangement for internal earth linking.
 

pirate

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  • #5
Valuable information, gentlemen...thank you.
So the gland plates are Wiska's version of Piranha?

I was keen to try the Wiska brand, so maybe I'll go with their gland plates.
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Or go with Darkwood's suggestion, which clearly will work fine with Piranhas
 

Baddegg

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Another vote for the earth clamp bar 😁
 

pirate

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I have some Piranhas though...
maybe just go with a plain box, and try the Wiska range another time.
so many plain IP rated boxes to choose from, so that's maybe my easiest solution.
I thank you all for your input...much appreciated, and gratefully received. :)
 
I personally have not tried a piranha nut thingy , I usually just put the bangos on the inside kink them up and bolt together,,,,
 

ipf

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I personally have not tried a piranha nut thingy , I usually just put the bangos on the inside kink them up and bolt together,,,,
Yer missin' out, mate. I wouldn't be seen without them, these days.
Just installed some pvc 32A 3 phase/N/E 5 pin sockets with isolators. They leave drilling and linking banjos in the shade.
Do they go bang. by the way?
 

darkwood

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Piranhas are a good choice for compact stuff like isolators where a banjo simply is too big and sticks out past the edges of the box.
 
An earthing nut will not fit those boxes stick with the proprietary Wiska earthing plate.
 

Lister1987

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And let's not forgot on wiska boxes are self-drilling - no need to pole out the knockout, just screw your gland into it and it'll do the knocking out for you .
 

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