watts divided by volts gives amps
thus your cord load would be (maximum)
760 / 120 if american = 6.333amps
760 / 240 if other = 3.166amps

cord not overload or heat up, cord (should) handle 10amps easily



another thought is - that plastic goes brittle if exposed to UV (sunlight, hydroponic rig, etc) or other BPA leeching substances like harsh chems (bleach etc)
also, use imgur - better, faster, no limits, no crappy wrapper pages. also has fb signup for ease of use