Which of the following factors must be taken into account when determining the wire size to use for an aircraft installation?
- Allowable power loss, permissible voltage drop, current carrying capability of the conductor, type of load (continuous or intermittent).
- Mechanical strength, allowable power loss, the colour coding of the wire insulation, permissible voltage drop.
- Allowable power loss, the routing clamp spacing along the harness, current carrying capability of the conductor, type of load (continuous or intermittent).
Explanation
Wire size is set by the circuit's electrical duty: the allowable power loss (I2R heating), the permissible voltage drop, the current-carrying capability of the conductor (which must stay below the insulation's temperature limit), and whether the load is continuous or intermittent - the selection chart uses separate curves for each. Mechanical strength only becomes limiting for very small gauges (below #20).
vale asking:
in the book where i'm studying the correct answer is the first, I have to know the amps such are flowing
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