fuse rating

[burgo]

if i have two circuits running 10 amp fuses can i combine the circuits to run off the same power supply and use a 20 amp fuse

[meritlover]

yes, but your wiring is rated for 10Amps, hence the fuse.
in a fault situation, expect smoke.

[Adam]

In theory yeah
Bit dodgy though because if the circuit pulls 18A(it wont blow the 20 fuse obviously), but it would have blown/overheated the fuse/wiring it was designed to run on if you get me.

[burgo]

no my wiring isnt standard. so it is as simple as add up the fuse rating of each circuit and use one of that total

[meritlover]

it is if your adding the loads in series.

[burgo]

do what. bin 7 years since electronics lessons

[meritlover]

how exactly are you 'combining' the circuits?

[burgo]

how exactly are you 'combining' the circuits?

just using the same power feed point. basically ive not got enough fuses for circuits. so im gonna take a feed from the same fuse points and increase the fuse rating