What size cable tube should I choose for photovoltaic panels

Why 10-American-Wire-Gauge (AWG) is selected as the standard for external connection of solar arrays due to the following:Oversized for safety & voltage dropLow resistance for solar current of 30 Amps per single panelThe voltage drop over distance is lowCable is flexible [pdf]
[FAQS about What size cable tube should I choose for photovoltaic panels]

What is the size of a 575w photovoltaic panel

It weighs 28 kg and measures 2,266 mm x 1,133 mm. It is built with 182 mm (M10), 16BB half-cut cells. The panel can be used with a maximum system voltage of 1,500 V.. It weighs 28 kg and measures 2,266 mm x 1,133 mm. It is built with 182 mm (M10), 16BB half-cut cells. The panel can be used with a maximum system voltage of 1,500 V.. 575W Super Large Wattage in a single panel! Dimensions 2278mm x 1134mm x 30mm (NOTE: VERY LARGE SIZE!) [pdf]

How much tilt should photovoltaic panels have to be to be effective

To optimize performance, tilt your panels at an angle that is 10-15 degrees less than your latitude. For example, if you live at a latitude of 40 degrees, set your panels at about 25-30 degrees. [pdf]