Hi.Can someone help.Iwant to fit electric under oven rated 3000 wats.Cable is going to be 2.5 from 16 amps mcb into cooker labled 45amps switch.2.5 flex heat proof to oven itself.Gas hob is fitted above it.Above workserfices it is immposible tofit cooker switch as difficult to disconnect it if need to be.Can i fit switch behind next base cabinet.also i need 13amps socket for gas hob ignition Now can i take spur from cooker switch or should i use cooker switch with socket built into it or i take spur out of ring main.Someone mentioned use 20amps cooker switch but i have seen all cooker switches marked 45amps DP.