good luck in your career mate! word of advice, that you probably already know because you watch vids like this: keep up to date, pick up professional electrician mag from your wholesaler, etc. The industry is changing way faster now than it ever has. I qualified in 92, and the changes since then are mind blowing!
VT7.. added to my christmas list :) we pull fuses all the time (DNO authorised, SSEN territory). Good to have. At the mo i use a properly rated dmm to a known good earth
@TheChipmunk2008 They're not ideal. The PILC is far too soft to be clamping down on. If you crush the lead sheath onto the inner cores you'll know all about it!
@@John_Faultless yeah there's a video on youtube of what happens when the cable head on a 4 core PILC breaks down at the top of the pole.... burned about halfway down the pole before the substation fuse went or someone shut it off....
@@John_Faultless as a followup, what do you think of sparks augmenting the existing (LOOSE) clamp with a constant force spring and a braid? Techincally not our remit but sometimes it's faster and easier to get a low Ze on the day, then report it anyway?
@@TheChipmunk2008 I have been guilty of tightening them when I was younger and more foolish. Wouldn't touch them these days. Just report it and leave it to the DNO
@TheChipmunk2008 The DNO are only responsible for the cable coming in and the head. If you called them out about an issue with the tails you would be charged for the callout. Imagine a new install. The head is there with nothing coming out until the meter company install tails to their meter. The exception is where the BNO come from the head to a Ryefield board to then supply the meters. In this case the BNO would be responsible. It gets a little confusing 😅
In what way? Any damage, any damage would be the responsibility of the owner. So, the service head would be the responsibility of the dno. The cables from that cupboard to the flats would be the BNO. So in this case, it would be the collective responsibility of the flat owners. There are 4 x flats. So the each submain would be the landlords responsibility.....
John.. you've hung around Rimmer for too long 🤣 stop pokey pokey with fingers on live stuff, that's why we have VDE gear and stops apprentices picking up bad habits well explained for apprentices though
@@John_Faultless i cringed when you touched the main head, i got a massive belt from one years ago,, because the resin had broken down, we all get a but complacent from time to time
@thattoolguy9432 I mentioned the phenolic breakdown and yet didn't heed my advice! You're completely right. Complacency kills. Cheers for the feedback 👊
@stewartthorpe7159 The DNO have no legal obligation to provide an earth. If they do, they have to meet certain criteria. As you mention, 0.8ohms for a TN-S system and 0.35ohm for a TNC-S. But they do not have to provide an earth.
@@John_Faultless hi John I am a cable jointed for enwl formally norweb . I frequently go out to property's without or poor earth . 0.8 ohms and up to 1.6 ohms reduce the fuse 100 to 80 ,80 to 60 etc Job must go on front screen to correct the issue. Overhead fed property when historically the property had its earth provided by earth rods then that is the only reason I've encountered when the home owner needs to supply his own earth
I may be wrong mate. When I worked for a DNO, if the earth wasn't up the scrap, they would quote the customer a few £100 to fix issue. So, if the customer doesn't pay, there is no decent earth. That's my experience. Any bonding clamp found on a pilc they would try to charge the customer saying they have never used those clamps. Well where did they come from? Surely not every clamp was Installed by a random spark??
@stuartrobb673 No, it'll be a solid removable link under the cover. It would have to be quite a bit older for a fuse neutral. But I still come across them. If you do, contact your local DNO to report. I believe the code is B11 for fused neutral, but it's been a while since I worked for one
@@John_Faultless have come across a few BS3036 heads, those get reported too, not suitable for fault current on modern networks, also usually pitifully low current, often 30A
Great training videos John.
The historical perspective is essential for those new to electrical installation.
Glad I found your channel, Artisan videos aren’t the same without you 😎
Great video. Always loved seeing your knowledge and experience on other video. Looking forward to the next one.
Hi John I’m a trainee spark and get a lot from videos like this. Nice one!
good luck in your career mate! word of advice, that you probably already know because you watch vids like this: keep up to date, pick up professional electrician mag from your wholesaler, etc. The industry is changing way faster now than it ever has. I qualified in 92, and the changes since then are mind blowing!
Yeah i would cut seals every time, new sub because you have a real world attitude, best of luck with your business sir
@TheChipmunk2008 Thanks mate 👊
Artisan has got a good man there, one you would never let go!
got? or lost?
Nice one John, trainee spark here and appreciate you doing this
@avocet89 Cheers mate 👊
I'm Not a spark but it is a great watch. Thank you for sharing.
Have a look at getting a VT7 John, perfect for prodding fuse carriers, screws, any extraneous metal parts before touching with your hand.
@chrisdobbo8938 cheers mate, I will do. Old habits die hard but it's no excuse
VT7.. added to my christmas list :) we pull fuses all the time (DNO authorised, SSEN territory). Good to have. At the mo i use a properly rated dmm to a known good earth
@@John_Faultless never heard of one before i joined the current company im at. Dont touch nothing now without it, always handy to have all 5 fingers
Keep up the good work
Was that an homage to Hubnut at 10:49?
C2 for the board falling off the wall... if any signs of damage due to said movement, C1 (I know that's debatable but it WILL go bang)
Definitely clicked on this thinking it was a Vsauce video!
@@damowdotnet 😂 my man!
John, what as a former DNO guy, what is your view of BS951 clamps on PILC ? they're meant for pipe not cable?
@TheChipmunk2008 They're not ideal. The PILC is far too soft to be clamping down on. If you crush the lead sheath onto the inner cores you'll know all about it!
@@John_Faultless yeah there's a video on youtube of what happens when the cable head on a 4 core PILC breaks down at the top of the pole.... burned about halfway down the pole before the substation fuse went or someone shut it off....
@@John_Faultless as a followup, what do you think of sparks augmenting the existing (LOOSE) clamp with a constant force spring and a braid? Techincally not our remit but sometimes it's faster and easier to get a low Ze on the day, then report it anyway?
@@TheChipmunk2008 I have been guilty of tightening them when I was younger and more foolish. Wouldn't touch them these days. Just report it and leave it to the DNO
@@John_Faultless yeah it's not just the death, it's the bill and probably HSE fine that comes after!
Also when did the meter company take posession of the head>meter tails?
@TheChipmunk2008 The DNO are only responsible for the cable coming in and the head. If you called them out about an issue with the tails you would be charged for the callout. Imagine a new install. The head is there with nothing coming out until the meter company install tails to their meter. The exception is where the BNO come from the head to a Ryefield board to then supply the meters. In this case the BNO would be responsible. It gets a little confusing 😅
@@John_Faultless i am old, to me its still all 'the electricity board' lol
What about rodent activity?
In what way? Any damage, any damage would be the responsibility of the owner. So, the service head would be the responsibility of the dno. The cables from that cupboard to the flats would be the BNO. So in this case, it would be the collective responsibility of the flat owners. There are 4 x flats. So the each submain would be the landlords responsibility.....
John.. you've hung around Rimmer for too long 🤣 stop pokey pokey with fingers on live stuff, that's why we have VDE gear and stops apprentices picking up bad habits well explained for apprentices though
@thattoolguy9432 I do explain to not do what I do in the video 😂
@@John_Faultless i cringed when you touched the main head, i got a massive belt from one years ago,, because the resin had broken down, we all get a but complacent from time to time
@thattoolguy9432 I mentioned the phenolic breakdown and yet didn't heed my advice! You're completely right. Complacency kills. Cheers for the feedback 👊
@@John_Faultless yeah you touched just after saying it, did make me chuckle... only made the comment as id like to see you do better than Rimmer
@@thattoolguy9432 'it's never happened to me' (watch it happen tomorrow!)
DNO must supply incoming earth pilc lead cable tns up to 0.8 ohms eli
@stewartthorpe7159 The DNO have no legal obligation to provide an earth. If they do, they have to meet certain criteria. As you mention, 0.8ohms for a TN-S system and 0.35ohm for a TNC-S. But they do not have to provide an earth.
@@John_Faultless hi John I am a cable jointed for enwl formally norweb . I frequently go out to property's without or poor earth . 0.8 ohms and up to 1.6 ohms reduce the fuse 100 to 80 ,80 to 60 etc
Job must go on front screen to correct the issue.
Overhead fed property when historically the property had its earth provided by earth rods then that is the only reason I've encountered when the home owner needs to supply his own earth
I may be wrong mate. When I worked for a DNO, if the earth wasn't up the scrap, they would quote the customer a few £100 to fix issue. So, if the customer doesn't pay, there is no decent earth. That's my experience. Any bonding clamp found on a pilc they would try to charge the customer saying they have never used those clamps. Well where did they come from? Surely not every clamp was Installed by a random spark??
Is that a fused neutral on the inbound (white right hand side). That’s a BIG no!
@stuartrobb673 No, it'll be a solid removable link under the cover. It would have to be quite a bit older for a fuse neutral. But I still come across them. If you do, contact your local DNO to report. I believe the code is B11 for fused neutral, but it's been a while since I worked for one
@@John_Faultless have come across a few BS3036 heads, those get reported too, not suitable for fault current on modern networks, also usually pitifully low current, often 30A