Allowable voltage-drop for normal operating load. 

o Allowable voltage-drop for future operating load as determined by motor's Service Factor. 

o Allowable voltage-drop for starting condition. 

o Allowable voltage-drop for motors to be re-accelerated following a voltage interruption.

o Type of starting, i.e., full-voltage, reduced-voltage, part-winding, delta-wye, VFD, etc. 

o Short-circuit withstand capability for an in-close fault (eg, motor starter.)

o Ground or earth-fault capability for a far-end fault (eg, motor terminal.)

o Plastic or rubber sheath resistance to chemical attack.

o Metallic screen or shield material withstand capability for excessive heating.

o Derating factor(s) covering installation, i.e., free-air, direct-burial (dry, wet) in conduit (duct bank, steel, plastic.)

o Derating factor(s) covering conductor material (Cu, Al.)

o Derating factor(s) covering construction, round or sector shaped, 3x1/c, 1x3/c, 3-1/2 or 4-core, overall sheath and/or shield. 

o Derating factor(s) covering insulation type and voltage level

o Derating factor(s) covering termination type (bolt, lug, clamp, brazed, soldered.)

o If direct-burial, then consider the possibilit of subsidence