Re: B2 Failure 09/04

[trambuff@hotmail.com (Daniel Gerrard)]

As long as you are only in conntact with fiberglass/wood (which tram
roofs are made of) you there is an insulation between you and
earth/negative rails. So, no problem, the same goes for overhead
wagons, which are insulated by the tyres, as well as insulation
provided by the woden platform.



On Fri, 23 Apr 1999 17:50:15 +1200, "M.B. and C.M.McDonald"
<michael.and.colleen.mcdonald@xtra.co.nz> wrote:

>I'd hope the workers were wearing thick, insulating clothing.  I presume the
>main body of the tram would be earthed - would be very easy for the worker
>to provide a convenient path from the overhead to earth via the roof of the
>tram.
>
>Michael
>
>Chris Sinnema wrote in message <371EE96D.8E86DEBD@pop.netlink.com.au>...
>>The overhead is never de-energised when repair work is done. There is no
>need as
>>the tramway workers are fully insulated, it is quite safe to touch the
>overhead,
>>just dont try it though when it comes down, sparks fly everywhere.
>>
>>
>>Matthew Geier wrote:
>>
>>> In article <01be86fa$2c019600$1900007e@mmc>, mmc <mmc@hyperlink.net.au>
>wrote:
>>> >
>>> >
>>> >mmc <mmc@hyperlink.net.au> wrote in article
>>> ><01be82f4$688aa3a0$1900007e@mmc>...
>>> >>
>>> >>
>>> >> B2.2062 (i think!) failed at the corner of Victoria St and Elizabeth
>St
>>> >> approx 1500 09/04.
>>> >>
>>> >> From what it appeared the pantograph had snapped. I think repair crews
>>> >> tried to fix it, but eventually B2.2073 (again, I think..) towed it
>back
>>> >to
>>> >> the depot.
>>> >
>>> >B2.2062 was seen back in service approx 2100 14/4.
>>> >
>>>
>>>  Ive watched a crew replace the bent pan on a B2 outside the Melbourne
>>> convetion centre a couple of years back. Z's , A's and more B's were
>>> gathering behind as a crew climbed up onto the roof and man-handled
>>> a replacement pan up the ladder and swapped it in, then threw the broken
>>> one over the side and packed up as the line of trams passed.
>>>  I presume the entire job was done with the overhead energised, as there
>>> was a queue forming behind them.
>>
>>
>>
>
>