Is this acceptable?

[Goody]

I have earthed the metallic sheath of SWA cable by wrapping around the bare earth wire (sleeved off) around a bolt and tightened on to the brass eyelet using a nut as shown in the picture.



Is this acceptable? or should I really crimp it using the one shown on the picture below and bolt it on to the brass eyelet?



Any feedback will be much appreciated.

 

[truckster]

Crimp it, the copper will squash over time and become loose, I also double nut it to make sure it stays tight.

And it looks crap!

 

[Amp David]

Crimp it every time IMO have never be a big fan of copper wrapped around bolts.

Whats with the big nick in the cable bedding? hope it aint gone through any of the insulation!

 

[Electricalserv]

As above always crimp. Also I always use brass bolt!

 

[Amp David]

Like to use brass bolts too, but each time i need some its seems harder to find them. Gone onto using the P nuts now though

 

[High Tower]

Yeah crimps for me, and i would also be concerned by the scar in the inner insulation too!!

 

[topquark]

Echo the above comments re the sheathing.

I would normally put the bolt through the base of the enclosure as well, more secure that way.

 

[Short Circuit]

same as above, and that of topquark - through the enclosure, whether PVC or metal, with brass nut and bolt and crimp lug!

 

[millwall ken]

As above always crimp. Also I always use brass bolt!

Can't say I'd use a gutter bolt either - Whats wrong with a proper brass pan screw? Also I agree with Truckster about using double nuts. Sorry mate but even for purely cosmetic reasons I would be happy with that.

 

[High Tower]

To be fair to the OP, the current syllabus of the 2330 states that "roofing bolts" should be used and not drilled through the case as to maintain the ip rating, tripe I know as I use brass panel screws and bolt thro but that is what is being taught at the moment

 

[millwall ken]

to be fair to the op, the current syllabus of the 2330 states that "roofing bolts" should be used and not drilled through the case as to maintain the ip rating, tripe i know as i use brass panel screws and bolt thro but that is what is being taught at the moment

wtf!!!

 

[topquark]

To be fair to the OP, the current syllabus of the 2330 states that "roofing bolts" should be used and not drilled through the case as to maintain the ip rating, tripe I know as I use brass panel screws and bolt thro but that is what is being taught at the moment

Fair enough if it has a suitable IP rating to maintain, that makes sense. That's one of todays lessons

 

[High Tower]

wtf!!!

I kno, I don't agree with it!!

 

[telectrix]

another argument based on the supposition that rain falls up, not down. any IP rated box i fit, i drill a drain hole in the bottom. seen so many so called IP65 boxes half full of water.

 

[nickblake]

Im with tel on this one i always drill a drain hole at the bottom of IP rated items , MK master seal range have drain holes , unless its going under water that is , i have to admit i do use roofing bolts but instead of the horrible square nut i use Nylocks aint going no where then

 

[Goody]

Thanks for all the inputs, seemed like lesson time and I have learnt a few things. As Amp David says, I too love to use brass nuts/bolts but couldn’t find suitable ones and I am hence sticking to what I have used earlier. Really wanted to use “Piranha Earth Locking Nuts” but my local shop or the “Bigshed” doesn’t do them.

I have taken your advice on board and have crimped it with suitable eyelet. The IP rating of the box hasn’t been compromised as the hole I drilled was big enough just to thread the lug-nut thro’.

Cheers!

 

[Doomed]

use a locking ring next time

 

[part270579]

Yeah, they guys are right. Crimp, crimp and crimp. double nut and don't forget your washers and copper grease!

And be a little more careful with whatever you are striping the outer sheath of with. Looks like a stanley blade incident to me.

Just out of interest, did you split the cores on the earth cable? Seen this done countless times and given out many b*llockings for it.

 

[mechelec]

Should have used a crimp for sure and i have always used 2 nuts on a banjo in a plastic enclosure. You cannot make a good reliable electrical connection by clamping the banjo onto plastic. Use 2 nuts on the gland with the banjo sandwiched between them.

 

[Electricalserv]

Should have used a crimp for sure and i have always used 2 nuts on a banjo in a plastic enclosure. You cannot make a good reliable electrical connection by clamping the banjo onto plastic. Use 2 nuts on the gland with the banjo sandwiched between them.

Biggest echo ever here. Always 2 nuts on the banjo for me aswell. Thought I was the only one!