Re: MELB: W class internal lighting

[mgm@tardis.net (Malcolm Miles)]

xiros@pa.ausom.net.au (Jason Xiros) wrote:

>A PTC guy boarded the tram and worked his way through the cab replacing
>each globe. He did this with a sort of suction cap thing, not unlike a
>sink plunger. (2)  I expected each globe to light as he changed it, but it
>wasnąt until the LAST globe was partly in place that ALL of them lit up.
>
>
>QUESTION:   Are the globes REALLY wired this way-- in SERIES?

Yes. 6 x 100V = 600V

>QUESTION:   If so, was it just bad luck that the blown globe was the last
>one to be changed, or had something blown all six globes on the circuit?

Bad luck. Just like Xmas tree lights, the blown globe will invariably
be the last one you check.

>QUESTION:   Are the globes ordinary 240V household ones?

100V Edison screw lamps.

mgm