Hello Joe,
I was hanging a ceiling fixture in a dining room for a lady before Christmas and she asked me how high I was going to hang it. I asked her how high she wanted it and she said that the lady at the lighting store said that it should be 30" from the top of the table. She seemed surprised that I didn't know that height.
Anywho, I would say that 30" from table top is about right. A quick call to your local lighting store should confirm this.
Adam
