II
4 Product Description .................................................................................... 19
4.1 Grid-connected System ...................................................................... 19
4.2 Appearance ......................................................................................... 21
4.3 Appearance Description ..................................................................... 22
4.3.1 Dimensions.............................................................................. 22
4.3.2 Ventilation Design ................................................................... 23
4.4 Circuit Introduction ............................................................................ 23
4.5 Terminals ............................................................................................ 25
5 Product Installation .................................................................................... 27
5.1 Basic Installation Pequirements ......................................................... 27
5.2 Installation Environment .................................................................... 28
5.2.1 Ground Requirements ............................................................. 28
5.2.2 Requirements of the Minimum Space for Outdoor Uses ........ 29
5.2.3 Requirements of the Minimum Space for Indoor Uses ........... 32
5.3 Requirements of the Alignment of Wires, Ventilation and Others ..... 33
5.3.1 Requirements of Cable Trenches ............................................ 33
5.3.2 Ventilation Requirements ........................................................ 34
5.3.3 Other Requirements ................................................................ 36
5.4 Wiring Specifications ......................................................................... 37
5.5 Fixation and Protection of Connection Cables ................................... 38
5.5.1 Fixation of Cables ................................................................... 38
