The main parameters of solar photovoltaic bracket

Installation location: building roof or curtain wall and ground
Installation orientation: should be south (except for tracking systems)
Installation Angle: equal to or close to the local latitude
Load requirements: wind load, snow load, earthquake requirements
Arrangement and spacing: combined with local sunshine conditions
Quality requirements: 10 years of no rust, 20 years of steel does not reduce, 25 years still has a certain structural stability.