2010 Track Circuit Question

[PJW]

Thanks for the feedback Peter,

Would 10% be reasonable additional track voltage / relay pick current to factor in?

Andy

I think the fact there is a number is more important than that which it is.  Given that one can expect power supply to fluctuate by that sort of amount, I think that I might have gone a little higher at say 15% but really of little consequence for demonstrating understanding of the concept