I think the horses most affected (as in dead) where wearing steel shoes as below.
"
Two horses have been killed by faulty underground cables at Newbury racecourse. The cables are believed to have been punctured during maintenance work.
Hundreds of spectators were watching the parade ring at Newbury when the horses suddenly reared up in pain. The horses are thought to have suffered catastrophic shocks from electricity cables that had been exposed by the work.
Two other horses were seen to wobble; bystanders who went to check up on the horses said they could feel electric shocks coming from their bodies.
The dead horses are thought to have been made vulnerable by their metal shoes. The two that died had steel shoes on and the two horses that were OK had aluminium plates on.
People who were standing nearby are likely to have been unaffected thanks to their leather or plastic soled shoes"
Good you asked the question Test-Meter! All the earlier thread is just guesswork. They suggested electrocution immediately... but I haven't seen any test results. Didn't they measure for voltage gradients? What voltage was the cable? (Was it even "live"?) What depth was it buried? Did they find the insulation damaged?
The PM just says "not inconsistent" with electrocution: not as reprted "...confirmed electrocution". I, for one, still need a lot of convincing!
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