Advice on fixing this outside mess

[nicebutdim]

In hindsight singles would probably be better but I’ve got 30m of NYY and the price of cable and also selling the NYY.

This whole scheme has alarm installer written all over it.

Don't conform to stereotype.

 

[RDB85]

This whole scheme has alarm installer written all over it.

Don't conform to stereotype.

I’m not trying to. But you really don’t like anyone that works in that field. Also the original install was done by a qualified spark. What’s wrong with NYY or do you have a better suggestion.

 

[Diddy]

Hmm as an electrician I tend to check the source of power 1st and then work from there. You also seem convinced that you need to run a new cable...but only in your last post do you state/imply that the armour cable has been cut "somewhere".
If something is outside your normal work/comfort zone sometimes it is better to just accept it and get a person in that knows this type of work well.
Not knowing how to do something isn't embarrassing or anything like that, But winging it and guessing is wrong on so many levels. You could get someone in and even learn from them for next time.....

 

[RDB85]

Hmm as an electrician I tend to check the source of power 1st and then work from there. You also seem convinced that you need to run a new cable...but only in your last post do you state/imply that the armour cable has been cut "somewhere".
If something is outside your normal work/comfort zone sometimes it is better to just accept it and get a person in that knows this type of work well.
Not knowing how to do something isn't embarrassing or anything like that, But winging it and guessing is wrong on so many levels. You could get someone in and even learn from them for next time.....

It’s a bit obvious that a new cable is needed as it’s anyone’s guess as to where it’s been cut. Maybe as the RCD was off I also decided to look in the enclosure. As you know it’s outside and all.

Having done that and then trying the consumer unit I then found the problem. I’m not trying to wing it or guess it. I’ve a Level 2 and 3 2365 so I’m okay with having some knowledge.

I could get someone in but most of the sparks I know feel confident that I could do that myself.

 

[nicebutdim]

I’m not trying to. But you really don’t like anyone that works in that field. Also the original install was done by a qualified spark. What’s wrong with NYY or do you have a better suggestion.

It was a tongue in cheek post, but not entirely inaccurate.

Your suggestion of replacing the cable cable prior to the apparent discovery that it has been cut. You reasoning behind using NYY was based on 'having all cable of the same construction' and later 'because you had some to sell'. I'd love to understand the reasoning behind all of this, but accept that I'll never know the facts.

As for what I'd do? Well I'd make decisions based on what exists and what needs to be achieved. The very things people have been trying to learn from you since yesterday, but apparently you're only bringing you make that assessment after already deciding on part of a planned way forward.

 

[nicebutdim]

It’s a bit obvious that a new cable is needed as it’s anyone’s guess as to where it’s been cut. Maybe as the RCD was off I also decided to look in the enclosure. As you know it’s outside and all.

The posts in this thread indicate you knew this was obvious a whole day before learning the cable has apparently been cut.

Incredible foresight on your part

 

[RDB85]

The posts in this thread indicate you knew this was obvious a whole day before learning the cable has apparently been cut.

Incredible foresight on your part

Isn’t it just.

 

[RDB85]

It was a tongue in cheek post, but not entirely inaccurate.

Your suggestion of replacing the cable cable prior to the apparent discovery that it has been cut. You reasoning behind using NYY was based on 'having all cable of the same construction' and later 'because you had some to sell'. I'd love to understand the reasoning behind all of this, but accept that I'll never know the facts.

As for what I'd do? Well I'd make decisions based on what exists and what needs to be achieved. The very things people have been trying to learn from you since yesterday, but apparently you're only bringing you make that assessment after already deciding on part of a planned way forward.

Okay so what currently exists is an RCD and an outside box. Two radials done in 4mm NYY. And a 1.5mm SWA that’s been cut. I’ve 30m of NYY which I’ve decided to use as selling it online is a right pain and with the price of cable going up it’s not worth buying new cable when the NYY seems appropriate cable to use.

I’ve also got some 25mm Galv Conduit and an assortment of Saddles and End and Through Boxes.

All I’m doing is asking for some advice and trying to help a friend restore power to his sheds.

 

[timhoward]

Okay so what currently exists is an RCD and an outside box. Two radials done in 4mm NYY. And a 1.5mm SWA that’s been cut. I’ve 30m of NYY which I’ve decided to use as selling it online is a right pain and with the price of cable going up it’s not worth buying new cable when the NYY seems appropriate cable to use.

I’ve also got some 25mm Galv Conduit and an assortment of Saddles and End and Through Boxes.

All I’m doing is asking for some advice and trying to help a friend restore power to his sheds.

I'm all for trying to draw a line as many on here would like to help you. My gentle suggestion is to just admit mistakes and move on. It's not like we don't all make mistakes too. I'm sure you've already learned things from this. e.g. assume nothing and work methodically when fault finding (find out what does work first)

So, you currently have a B40 device for the supply circuit. Is this RCD protected in the garage board or not?
Have you got a cable that's CCC exceeds 40 amps after appropriate deratings?
Until you have the supply circuit design sorted you can't move on to the details.

Brief research shows that 4mm NYY-J clipped direct is rated under 40 amps, so by the time it's in galv conduit I'd doubt this is going to cut it. So you may need to rethink the protective device and/or the cable.
Does that get you started?

 

[westward10]

What distance does this cable have to be pulled through the conduit?