The total amps required - if every burner is running full on high speed determines the wire size required. So all I can say here is if it is 50 amps max then a 6/3 supply will suffice unless it is a long run from he breaker box to the stove. Elaborate some specs please about the range cooker amperage specifications. (I never heard of a range cooker except in the old cowboy movies.)
2
To answer this question the voltage of the unit must be given.
Core Flex = one conductor per cable Tech cable = 3 conductors per cable
Yes. remember that one core is with reduced size by half.
Take out your glove compartment, there should be a cover up under with cable(s) runing to it. the core should be under this. take cover off, remove heater hoses from under the hood where they attach at the firewall. The core should be able to wiggle out from under dash.
The term core represents each individual conductor within a cable, and a pair is two cores (or two conductors) within a cable. For example if you have a 3 core cable, then the cable has 3 separate conductors in it (3 separate cables within the PVC coating). A 3 pair cable would be 3 sets of 2 cores, so this would have 6 conductors within the cable.
The plastic core keeps the twisted pairs separated allowing less crosstalk than CAT-5 cable.
A two core cable is used where an earth is not required. A three core cable is used where an earth is requred. Specialised three core cables are available for 3 phase and two-way switching applications.
2 conductor round cable 2 conductor twisted cable
Assuming you're taking about 'twin core and earth' cable - it's commonly used to supply power to high-current devices such as cookers and immersion heaters.
Coaxial Cable
no the core of a fiber optic cable is made of solid glass, making it impossible to pass anything but light through it.