What is the minimum size required for a copper grounded conductor of a 3-phase, 3-wire, corner grounding delta system if the ungrounded phase conductors are sized at 500 kcmil copper?

The ideal gas model is valid if which of the following conditions is true? the gas density is low. the gas density is high. the temperature is low. the temperature is high. the gas density and the temperature are low. the gas density and the temperature are high. the gas density is high and the temperature is low. the gas density is low and the temperature is high.