Do you know the key points of photovoltaic lightning protection and grounding design ?

Design points Ground photovoltaic surge protection and grounding The practical design points of ground photovoltaic lightning protection and grounding are as follows: 1) General grounding layout diagram, component support connection diagram, square grounding diagram, etc. 2) When there is a contradiction between the grounding wire and the equipment foundation, the grounding wire should be laid […]

General and general requirements for surge protection and grounding systems

General requirements The overvoltage protection and grounding of the booster station area and the local inverter booster chamber of the photovoltaic power station should comply with the provisions of the current national standards GB/T50064 and GB/T50065, “Design Specification for overvoltage Protection and Insulation of AC Electrical Devices”.Lightning protection of photovoltaic power station living auxiliary construction […]

 The suitable range and characteristic of prestressed concrete

1.base form Prestressed concrete pipe pile is an important branch of prestressed pipe pile. Prestressed pipe piles are divided into prestressed concrete pipe piles (PC pile), prestressed high-strength concrete pipe piles (PHC pile) and thin-wall pipe piles (PTC pile) according to concrete strength grade and wall thickness. The concrete strength of PC pile shall not […]

Photovoltaic array support – screw pile foundation

Structure and Features 1.1 Basic formSpiral piles are generally cut, deformed, welded, pickled, hot-dipped and other processes to produce qualified piles. Among them, pickling and hot-dip galvanizing are important anti-corrosion treatment processes, which directly affect the service life of screw piles. The processing level of the screw pile directly determines the service life of the […]

Photovoltaic array support – cast-in-place pile foundation

Structure and Features 1.1 Basic formThe structure of the cast-in-place pile is shown in Figure 1. 1) Reinforcement ratio: when the diameter of the pile body is 300~2000mm, the reinforcement ratio of the normal section can be taken as 0.65%~0.2% (the high value for the small diameter pile); The reinforcement ratio of piles and end-bearing […]

Expandable independent foundation and strip foundation for photovoltaic array support

Expandable independent foundation 1.1 Structure and Features1.1.1 Basic formThe structure of the independent foundation shall meet the following requirements: 1) The height of the edge of the foundation should not be less than 200mm. In the case of a tapered foundation, the slope in both directions should not be greater than 1:3; the height of […]

In-depth study on the design load of photovoltaic support

Wind load Due to different environments, the requirements for the design of the photovoltaic system support structure are getting higher and higher, and ensuring the safety and application of the support structure, cost saving, and convenient construction and maintenance have become the main factors to be considered in the design. The ground photovoltaic support has […]

Reference Standard for Design and Construction of Photovoltaic Array Supports

Photovoltaic array brackets are special brackets used in photovoltaic power generation systems to install and fix battery components. The foundation of photovoltaic support is a structure that transmits various forces that the support bears to the foundation. It has various forms and a large number of projects used. It is an important guarantee for the […]

Differential configuration technology of large distance difference DC bus cable

The photovoltaic modules in the distributed generation system or photovoltaic power station are connected in series and parallel to the combiner box, and then connected to the DC power distribution cabinet through the combiner box. The photovoltaic array with a capacity of 1MWp in the photovoltaic power station covers an area of ​​about 25 acres. […]