With the capacity of substations in excess of 1MW these days, you'd have to
be careful about the wire bouncing around due to the magnetic field caused
by the short circuit current, this would be dependent on how quick the high
speed rise time triggered breakers were.
Peter
On Tuesday, 14 March 2023 at 09:40:45 UTC+11 Tony Galloway wrote:
> They were also trained properly to deal with it, with instructions similar
> to Glasgow’s. As was every other relevant tramway and electric railway
> worker on any system.
>
> Deskilling the workforce is core managerialist ideology as its
> perpetrators believe a deskilled workforce has less industrial power
> exercised through strikes and is easily replaced by equally unskilled and
> disempowered workers. Keep ‘em ignorant to hold pay rates down.
>
> Tony
>
> On 14 Mar 2023, at 09:11, Michael Giddey mikeg...@...> wrote:
>
> Hi Mal. Sydney trams carried a set of insulated tongs for just such
> emergencies as well as jacks, a small crowbar and some basic re-railing
> plates. Crews were expected to be able to use common sense back then.
>
> Sent from Outlook http://aka.ms/weboutlook
> ------------------------------
> *From:*tramsdo...@... tramsdo...@...> on
> behalf of Malcolm Rowe mal....@...>
> *Sent:* Monday, 13 March 2023 9:10 AM
> *To:* TramsDownUnder tramsdo...@...>
> *Subject:* [TramsDownUnder] Trolleywire Down
>
> In the early days of TDU - perhaps 20 years back - one of our
> correspondents outlined the standard procedures in Glasgow if a driver came
> across live trolleywire down.
> I can't find the post, but (from memory) it went something like this:
>
> "If driver sees a trolley wire down he should take the rubber gloves out
> of the box in the tram cab, grasp the trolleywire and touch it three times
> to the rails"
>
> (Note the consideration of automatic re-close!)
>
> The correspondent had the original document from an older relative and
> said that he could vouch for it being real. He also had a certificate of
> appreciation presented to the
>
> --
> Mal Rowe - AU
>
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