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

 

[telectrix]

sounds like a plan. can be impossible to get the gland nut on in some of these boxes.

 

[Plonker 3]

Depends on the size gland you are using.

A 20mm gland should be fine, even with the banjo and locknut. Although sometime depending on the accessory layout you may struggle to screw it back with the gland poking through.

 

[driverman]

sounds like a plan. can be impossible to get the gland nut on in some of these boxes.

Actually thinking about it, would I need to use a banjo also? SWA 3 core LN + E

 

[telectrix]

you do if you want to tie the cpc conductor and the armour together.

 

[Plonker 3]

Actually thinking about it, would I need to use a banjo also? SWA 3 core LN + E

The SWA needs earthing somewhere.

 

[driverman]

The SWA needs earthing somewhere.

Yes, to confirm. CPC from con/unit to metal box, so box earthed. SWA going out, therefore armour earthed at box. is it best practice these days to fit a banjo as well.

 

[davesparks]

Use a flanged coupler and serrated washer

 

[driverman]

Use a flanged coupler and serrated washer

y
You got me there Davesparks sorry, been out of the game toooo long. However, will your suggestion fit within the metal box?

 

[driverman]

Use a flanged coupler and serrated washer

Just googled... looks the part. Thanks

 

[shanky887614]

Just googled... looks the part. Thanks

depending on install a piranaha nut can come in handy if your using the armour as the earth

 

[Knobhead]

I just hope no one suggests the unthreaded piranha nuts, they aren’t mechanically sound.

 

[davesparks]

I just hope no one suggests the unthreaded piranha nuts, they aren’t mechanically sound.

Piranha nuts are threaded!

 

[davesparks]

depending on install a piranaha nut can come in handy if your using the armour as the earth

That's going to be even worse than the locknut!

 

[shanky887614]

That's going to be even worse than the locknut!

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