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Sharpend yes got all the latest book, they don't make easy reading hay. But I know its all in the book. Its as you know is not laid out to make it easy. BS 7671-2008+A3:2015 Guidance Note 3 Inspection and testing 17th edithion EIT On Site guide BS 7671 EIT Electricians Guide. Thats Sharp...

Thanks guys for all your input into this. Your correct as I'm just running through project ideas as learning the whole concept here, Hence the trainee forum part.  And love the fact that this forum has this facility for new trainee sparks to ask all sorts of questions and you guys come forward...

Sharpend so thats an option then, so is that still under regulation and can buy it like that? I know twin and earh is no good as CPC size is always so much smaller.

TNS System my correction

Stepto yes sorry my diagrame ommits the fact that behind the CU is the rest fo the house so cant run up that side from outside. So it goes from garage CU underground out of the garage, underground and up to wall of house. Ready to come inside but having a head scratch on what to use inside to...

Rob well not 100% as in training but it sure looks like it Old house and clamp direct on the main line in approx 50mm below main fuse. Murdock wont that be reducing the future design load .. if the 1.5mm flex to 6mm cpc of the core SWA??

Hi its the ground floor folks concrete floor inside the house, And I guess the 450mm wall is due to it being very old house.  6mm 3core SWA recommended to be best outside, from shed to house. but looking for a solution to run inside the house to match the future design if the load is increased...

nothing but slabs and so going underground....

oh yes the meter is on the same wall as house CU.  5 meters from the point of entry of the external SWA cable.

HI Sharpend seems i cant post a photo as a new users..

HI Sharpend. So Garage is 8 meters away from main house. 6mm 3 cores SWA runing underground then coming up into a juction box on wall. Then that wall is the exterior of the house. The wall is 4500mm thick. then inside the wall 5 meters then a 90% angle to the wall with the CU another 2 meters...

So are you all agreed to just continue the SWA direct into the house via the wall and direc to the CU?

Sure looks like your all having a good old think about it. Yes like they are. Yes looks a great connetion type in the image above. So are you saying i could use the 3 core SWA, with the STEEL WIRED ARMOUR BIT TAKEN OFF OF THE 450MM WALL SIZE SO I CAN BEND IT AROUND the wall  then run the rest...

I agree with the unecessary connection.  Wish i could run the swa right throug from garage cu to main cu, but it comes from outside underground,  then into the house through a 450mm wall, then ... I understand you should nt bend this stuff no more than 6 times its diameter, so how did you get...

Hi folks no extrenuouse conductive parts in the garage. Not sure what you mean blue duck 6419? How did you bend the 25mm 4 core around the corners of the house? and throught the main wall then at a right angle, struggling to see hwo i could get it in the wall and then ??

HI Team Looking for some advice, reading up on running cable to outiside to a garag unit. Now I understand that using 6mm 3 core SWA outside just makes sence, and terminating direct into garage CU and into a IP65 rated plastic box on the wall box outside the house using one of the cores as...

Cheers fella. Will do.   

Andy HI Yes its clamped on the sheath about 4mm under the main fuse. So TNS then?