Wiring amps

[Jelleyboy]

I need to create some looms for the Bedford, I know I need 9/0.30mm however, could someone please advise what amp cables I need for the following please:

 

 

ammeter connection to the odometer

 

indicator switch live to the ignition switch

 

cables to increase the length of the brake light switch

 

cables for rear indicator and brake light.

 

its running off a 12v system, also my Autosparks loom sheath has both mauve and black cables together, from looking at the wiring diagram one of these cables each feeds the brake lights - am I supposed to separate these? Assuming that one goes to the brake light and then an earth from each?

 

also I'm using rubbolite indicators and the terminal only allows for one cable, are these supposed to be twin with an indicator cable and an earth?

 

any advice appreciated as always

 

 

thanks Luke

[g0ozs]

Luke

 

What are the bulb ratings for the indicators and brake lights ?

 

Regards

 

Iain

[Tony B]

The formula is very simple. Volts X Amps = Watts. So take the Wattage divide by voltage and you get the ampage the circuit requires. Though do look up the DC ampage. AC current runs ON a wire DC current runs IN a wire.