198 volts

[nirru]

hi i was doing a test on an alarm spur and i only had 198volts at the spur but i had 247 at the board. the spur was only 5m from the board. really confused me.

[Jimbo]

Do a Ze at the board and a Zs at the socket, do R1 & R2 then : in theory they all have to add up, there must be a high resistance there to drop the voltage that much. Regards Jimbo

[Besoeker]

Do a Ze at the board and a Zs at the socket, do R1 & R2 then : in theory they all have to add up, there must be a high resistance there to drop the voltage that much. Regards Jimbo

And probably a lot of heat somewhere.
Or something silly with the wiring.