Wires are connected to perm mushrooms under the apron and the tape from what I can remember that they used was the same tape as rockclimbers use to attach themselves to their gear which from a distant memory has something like 2 tons working load and 3.5 ton failure load.
Which is completely different to the old ****e bit of washing line blue rope that seems to be in favour in the UK.
So contacttower I would say its orders of magnitude better than the UK.