Other peoples work

[JohnW2]

Thing is, where does it say in 7671 that its not acceptable?

I'm as certain as I could be that it doesn't say that - but, to be fair, I don't think anyone has suggested that it is not acceptable (per BS7671). Even he who regards it as 'bad practice' has admitted that it is compliant.

As for myself, remember that, early on, I asked ...

Other than perhaps aesthetically (and the general crowding of the box, which would not be helped by any other handling of the CPC's) what is actually 'wrong' with what has been done?

..,. and, as above, the only response I got was "bad practice" - which, as I said, is a phrase that always seems to get wheeled out when people cannot come up with an 'actual reason'

Kind Regards, John

 

[JohnW2]

Surely cant be one bolt you often see these

Quite. That's why I asked what "one point" meant in that Standard!

Kind Regards, John

 

[SUNRAY]

So this is basically the situation :

In this example there are 6 Lugs, in OP there are considerably more.

Simply moving the Banjo inside the enclosure gives this:

And all of a sudden there is no steel within the electrical path. What is so dificult about that?



In my opinion just a little bit of thought makes a big difference and I hope this could be described as 'best practice' or at least 'better practice'.

 

[SUNRAY]

I'm as certain as I could be that it doesn't say that - but, to be fair, I don't think anyone has suggested that it is not acceptable (per BS7671). Even he who regards it as 'bad practice' has admitted that it is compliant.

As for myself, remember that, early on, I asked ... ..,. and, as above, the only response I got was "bad practice" - which, as I said, is a phrase that always seems to get wheeled out when people cannot come up with an 'actual reason'

Kind Regards, John

Are you trying to say those boxes have been installed in the best possible way?

 

[SUNRAY]

Pliers????

Waterpump pliers, i quess

Whatever version of pliers they may be the majority of nuts I see in the situation have teethmarks.

 

[333rocky333]

So this is basically the situation :
View attachment 228377
In this example there are 6 Lugs, in OP there are considerably more.

Simply moving the Banjo inside the enclosure gives this:
View attachment 228380
And all of a sudden there is no steel within the electrical path. What is so dificult about that?



In my opinion just a little bit of thought makes a big difference and I hope this could be described as 'best practice' or at least 'better practice'.

Ah, but in the OP the supply earth is through Swa armour, so with the banjo inside you have put more steel between the banjo and the gland body.
Though to be fair it was 3 core

 

[JohnW2]

So this is basically the situation : .... In this example there are 6 Lugs, in OP there are considerably more. Simply moving the Banjo inside the enclosure gives this: .... And all of a sudden there is no steel within the electrical path. What is so dificult about that?

Nothing is difficult about that, and no steel within the electrical path as far as the gland body. However, you are discussing an issue that, if I recall correctly, no-one but yourself has raised or commented upon - i.e. whether the banjo is inside or outside of the enclosure.

Myself, and others, have been talking about the merits/need for having a banjo at all. Sure, you will point out that this would mean that there would be some steel in the path between the lugs and the body of the gland but, as I keep pointing out, the fact that there is inevitably an interface between the brass gland and steel armour renders the 'bit of steel box' in the (all-important) path from CPCs to the cable's armour somewhat of a triviality.

Kind Regards, John

 

[JohnW2]

Are you trying to say those boxes have been installed in the best possible way?

"In the best possible way" is just another version of the "best practice" - which, as I said, is a phrase that people seem to bring out when they don't have an 'actual answer'.

Given that we live in a non-boring world (i.e. "vive la difference"!), different people will undoubtedly have different personal opinions as regards the "best possible way" of doing almost anything - and I would never presume to impose my personal opinion about such things on anyone else. All I have said, and am saying, is that I am personally perfectly happy with the way the CPCs have been dealt with in those boxes.

Kind Regards, John

 

[SUNRAY]

One of my fairly regular jobs:

Not a scrap of steel in the electrical path, easy eh?

 

[SUNRAY]

Ah, but in the OP the supply earth is through Swa armour, so with the banjo inside you have put more steel between the banjo and the gland body.
Though to be fair it was 3 core

But of course when done properly the brass lock nut completes the non steel path

 

[JohnW2]

One of my fairly regular jobs: .... Not a scrap of steel in the electrical path, easy eh?

That's hardly relevant to the situation we're discussing - and, in any event, I don't see any steel armour that one needs to connect to in your photo.

Kind Regards, John

 

[SUNRAY]

Nothing is difficult about that, and no steel within the electrical path as far as the gland body. However, you are discussing an issue that, if I recall correctly, no-one but yourself has raised or commented upon - i.e. whether the banjo is inside or outside of the enclosure.

Myself, and others, have been talking about the merits/need for having a banjo at all. Sure, you will point out that this would mean that there would be some steel in the path between the lugs and the body of the gland but, as I keep pointing out, the fact that there is inevitably an interface between the brass gland and steel armour renders the 'bit of steel box' in the (all-important) path from CPCs to the cable's armour somewhat of a triviality.

Kind Regards, John

Why do you keep harping back at the purpose designed and manufactured product?

 

[SUNRAY]

"In the best possible way" is just another version of the "best practice" - which, as I said, is a phrase that people seem to bring out when they don't have an 'actual answer'.

Given that we live in a non-boring world (i.e. "vive la difference"!), different people will undoubtedly have different personal opinions as regards the "best possible way" of doing almost anything - and I would never presume to impose my personal opinion about such things on anyone else. All I have said, and am saying, is that I am personally perfectly happy with the way the CPCs have been dealt with in those boxes.

Kind Regards, John

All I'm saying is I work to better standards and I certainly wouldn't have had to turn work away if I'd produced work like that.

The thing is; Rocky obviously doesn't think it's OK either.

 

[333rocky333]

But of course when done properly the brass lock nut completes the non steel path

Cant say i have seen Brass locknuts off the shelf, thats why i like the Earthing nuts, you can use them as chunky Brass locknuts, obviously you can still use them as a Locknut with a banjo

 

[JohnW2]

Why do you keep harping back at the purpose designed and manufactured product?

What "purpose designed and manufactured product" are you talking about? Do you mean the brass gland?

Kind Regards, John