Re: Near miss at Victoria (London)

["Chris Downs" <cvdowns@ozemail.com.au>]

Tezza <tezza2000@dingoblue.net.au> wrote in message
3a5a9fa1$0$11974$7f31c96c@news01.syd.optusnet.com.au">news:3a5a9fa1$0$11974$7f31c96c@news01.syd.optusnet.com.au...

> > In Sydney (and elsewhere) I thought the "air gap" was the space between
the
> > two sets of overhead at an overhead anchorage/transition point on main
> lines,
> > The other type of section was initially provided by "continuous-feed
> > wood-break section insulators" (the diamond shaped overhead arrangements).
>
> The air-gap and section insulators are the same thing.

Walter Myers (Chief Electrical Engineer, NSW Railways and Tramways) paper to
the The Institution of Australian Engineers, "Electrification of Sydney and
Suburban Railways", 1926, makes a distinction between "air-gap section
insulators" and "continuous-feed wood-break section insulators" per my
previous description.

It sounds as though the intervening 75 years have seen a merge in the
description for simplicity's sake.

Chris