| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for installing a solar power generating module using a material having a good productivity, in which reliability of corrosive resistance is greatly improved. <P>SOLUTION: When a solar power generating module 12 with a frame 11 made of Al alloy is installed on a building via a base having a structure where metal support members are joined, a melt Al plated steel plate (A) is used for a steel material of the support members. The melt Al plated steel plate (A) comprises a substrate containing ≥7 mass% of Cr, on which an Al plated layer having Al-3 to 12 mass% Si composition is formed with a coating weight of not less than 20 g/m<SP>2</SP>per side. The difference of E<SB>0</SB>-E<SB>1</SB>between a natural potential E<SB>0</SB>on the surface of the substrate and a natural potential E<SB>1</SB>on the surface of the Al plated layer is ≥300 mV under a simulated rain. <P>COPYRIGHT: (C)2009,JPO&INPIT |
