Wouldn’t the solution to ‘flipped pantographs’

be to use genuine two arm pantographs similar to those on many European tramways ?

There must be a considerable cost in repairs and delays whenever a Melbourne single arm tram pantograph ‘flips’. Tramway overhead wire is not under constant tension as on railways, so single arm pantographs on trams are more likely to find excessive sags or irregularities in the overhead. Just look at a long telephoto view of non tensioned tramway overhead wire.

Has anyone kept statistics on the percentage of flipped tram pantographs in Melbourne,

Sydney, Adelaide and compared them with European cities which use double arm pantographs such as The Hague [Den Haag] in Holland.

Noel Reed.

https://commons.wikimedia.org/wiki/File:PCC1010_Lijn-10_Spui.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/PCC1010_Lijn-10_Spui.jpg/260px-PCC1010_Lijn-10_Spui.jpg

https://commons.wikimedia.org/wiki/File:16-Turfmarkt-1016.1983.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/16-Turfmarkt-1016.1983..jpg/260px-16-Turfmarkt-1016.1983.jpg

From:TramsDownUnder@... [mailto:TramsDownUnder@yahoogroups.com]
Sent: Monday, 13 November 2017 8:12 PM
To:TramsDownUnder@...
Subject: Re: [TramsDownUnder] Trouble at Port Junction

Silly things those pantographs. So easily damaged, and so apt to destroy nearby overhead as well.

Regards,

On 13 Nov 2017, at 6:53 pm, Yuri Sossteam4me@... [TramsDownUnder] TramsDownUnder@...> wrote:

From Sue trying in vain to get home.

A City Circle W has flipped its pantograph and damaged overhead at Port Junction.
It was towed clear of Junction by another W so I guess overhead is working ok.

<flipped_panto.jpg>

_____

Posted by: Richard Youl tressteleg@...>