A person with a body resistance of 900Ω is standing on a dry floor that offers an additional resistance of 600Ω to earth. He touches the metal body of a refrigerator whose live wire has come in contact with the body; the appliance is not earthed. If the mains voltage is 230V, calculate the current that will pass through the person. State whether this current is likely to be fatal (danger threshold about 30mA).