Metal Switch Fuse SWa connection

[driverman]

Possibly an unusual question really. I'm fitting a metal surface box in order to terminate a SWA cable. I'd like to fit a switch fuse spur point. My concern is from memory,years ago, that some accessories may clash with the SWA gland / locknut at point of entry. Is that still the case these days? If so i suppose i could terminate the SWA gland into a 20mm coupler first, so that just a brass male bush is within the box.
Thanks

 

[Bobster]

what are you talking about, you use both, a locknut to hold the gland and pirana for earth.

in a plastic db i would rather do what i posted above

and a pirahna nut does hold them tight and you have more metal to grip with pliers,spanner or adjustable

He means that the pirahna nut is bigger than an ordinary locknut. The OPs problem was there wasn't enough room for an ordinary locknut.

On a side note I thought these pirahna locknuts were used instead of an ordinary locknut.

 

[davesparks]

what are you talking about, you use both, a locknut to hold the gland and pirana for earth.

in a plastic db i would rather do what i posted above

and a pirahna nut does hold them tight and you have more metal to grip with pliers,spanner or adjustable

The OP has a problem with the SWA gland and locknut taking up too much room in a metalclad switch fuse spur, a piranha nut will take up even more room in the box and thus make the whole situation worse.

 

[davesparks]

He means that the pirahna nut is bigger than an ordinary locknut. The OPs problem was there wasn't enough room for an ordinary locknut.

On a side note I thought these pirahna locknuts were used instead of an ordinary locknut.

Yes they are used in place of the standard locknut, and are much better as they are closer to the size of a full nut instead of the wafer thin locknut.
And despite Tony's misgivings they are threaded.

 

[Knobhead]

What's happened to being able to delete a post