12 yr old boy ends up in sidings
On Wed, 10 Oct 2012 14:11:38 -0700 (PDT)
PhilD wrote:
On Oct 10, 8:31=A0pm, Scott wrote:
Why 430 Volts? =A0Do they reduce the voltage in sidings for safety
reasons?
No, that's normal (with minus 220-or-so [1] at the centre rail).
PhilD
[1] someone will be along shortly with the exact nominal figure.
Isn't the reason for it something to do with smaller insulators being
required if each rail only carries part of the voltage?
B2003
|