Are you designing the energizer or installing one someone else produces- that standard is mostly for designers of the kit, not the installers.

If you are designing one from scratch then the expense of the BS is the least of your worries.

I suggest following the maker's instructions/ guidance notes is all that is needed to install one, and indeed please put the energizer electrodes well away (10m plus) from those of any other systems, and also away from phone and data lines, paying particular attention to any poles with earth wires running down them  - more of an issue on overhead LV rather than 33kV  I suspect,  only newer thing maybe recommendation of RCD cover on mains supply.

Clear and accessible  location of on-off switch, mains out of the rain and pretty much all the stuff that was good practice years ago still is - the physics of electric shock have not changed, nor have there been changes to the mechanical layout of horses and cattle. If anything the range of insulators and insulating handles for making opening sections and so on has improved a bit over the years.

Mike.

PS I see that Rutland, the makers of the Electric Shepherd brand have been absorbed by

Kerbl UK Limited
8 Lands End Way
Oakham, Rutland
LE15 6RF UK

Phone 0044 1572 722558
Fax 0044 1572 757614

May  be worth an Email to ask for the fencing catalogue- back in the day of Electric Shepard  (late '90s) their installers notes were very  good. I'd hope they have not lost them - no harm in asking, though the kerbl website is awful.

enquiries@kerbl.co.uk

Mike, Many thanks for that. I will not be designing the fencer, once they moved away from the old clicking electromechanical type I lost interest. While I could probably workout how a modern ones works my ageing grey cells have forgotten most of my electronic theory and would prefer to do something more interesting.

WhIle there are 11kVA OH lines around the farm I  think the ones that would have caused problems are now underground and causing the DNO problems. I have been told they have had 5 faults on them in the last four years with consequent power cuts locally.

If I dig deeply enough in my piles of rubbish I may even have one of those catalogues. 

I was concerned that some obscure requirement may have been introduced but can now go ahead with the14th edition suggestions with the supply meeting current regs. 

I think you might be over thinking this Kevin. At least I hope you are.

I just bought a mains operated energiser, banged in a bit of scrap for the earth and ran the ht lead out to the netting. Seemed to do the trick. Well initially, now the hens seem unaffected and simply walk through the sheep netting sized holes at will!

Trying to be clever I ran the socket for the energiser through a rotary isolator so that Mrs G didn't have to faff about plugging and unplugging. Unfortunately the septic tank installers fitted a similar isolator not too far away. Inevitably Mrs G turned off the wrong one and still didn't twig when she got a belt. It was several days before I noticed that the humming from the tank compressor had stopped and when I turned it back on there was a very different hum for several hours!

Tank isolator now secured with a cable tie!

Grumpy, In other circumstances I would be doing the same

However this installation is a farm wide fence installation with the energiser located near or in a steel frame barn where the frame is the TT earth for the supply to the barn but the rest of the farm wiring is PME! The farmer, a neighbour and friend, has been going around fields for weeks putting in posts and wires and has not yet finished. He wants me to do the mains bit which is always a challenge as much of the current installation (not my work) does not meet any recent version of the regs, was unsatisfactory in the recent EICR and was installed by both the landlord's electrician and by various moonlighting electricians in the distant past. 

Also as the farmer is a tenant and the landlord has finally started doing EICRs on their properties I need any work to meet the regs although I doubt that many know much about these for fencers when the last time they were in the regs may be the 14th edition.

So I thought it was worth checking in case something has crept through that I am unaware of in  an associated BS standard. 

What tune was your septic  tank humming?

Mains powered electric fencers are most probably designed not to electrocute animals. If they did the makers would get a bad name, but killing an animal to prevent it escaping is a but extreme.  You could take advice from an expert retailer like this bunch.......

https://www.electricfencing.co.uk/efd/planning/electric-fence-installation/

B.S. 7671 Reg. 705.513.2 "Electrical equipment generally shall be inaccessible to livestock." This is to prevent them turning it off and escaping at night to the pub.

When I werra lad and lived on a farm the farmer used to take a 12 Volt battery out to the fencer unit to run it. Now we have solar charged energisers.

www.pasturetec.co.uk/.../

Z.

I didn't recognise the tune Kev, but it was definitely more malodourous than mellifluous