It's about photovoltaics! The Ministry of Housing and Urban-Rural Development issued a draft for comments

On September 8, the Ministry of Housing and Urban-Rural Development issued the Notice of the General Office of the Ministry of Housing and Urban-Rural Development on the Mandatory National Code for Engineering Construction for Public Consultation.

The original text is as follows:

Notice

of the General Office

of the Ministry of Housing and Urban-Rural Development on Soliciting Public Opinions on the Compulsory National Specification for Engineering Construction "Specification for Solar Power Generation Projects (Draft for Soliciting Opinions)"

According to the Notice of the Ministry of Housing and Urban-Rural Development on Printing The Ministry issued the Notice on the Compilation of Engineering Construction Specifications and Standards and Related Work Plans in 2021 (JBH [2021] No.11), and organized the General Institute of Hydropower and Water Resources Planning and Design and other units to draft the mandatory national specification for engineering construction, Solar Power Engineering Project Specification (Draft for Comments) (see Annex). It is now open to the public for comments. Relevant units and the public can give feedback through the following ways and means:

1. E-mail: guozhenni814@163.2

.

The deadline for feedback is October 8, 2023.

Attachment: Specification for Solar Power Generation Projects (Draft),

General Office

of the Ministry of Housing and Urban-Rural Development, September 5

, 2023 about specification kind.". The mandatory engineering construction specification system covers all kinds of construction projects in the field of engineering construction, which can be divided into two types: engineering project specification (referred to as project specification) and general technical specification (referred to as general specification). The project specification takes the whole construction project as the object, and takes the scale, layout, function, performance and key technical measures of the project as the main content. The general specification takes the general technology of various specialties to realize the functional performance requirements of engineering construction projects as the object, and takes the general technical requirements of survey, design, construction, maintenance and maintenance as the main content. In the full text of the mandatory engineering construction specification system, the project specification is the backbone, and the general specification is the regulation of the common and general professional key technical measures for all kinds of projects.

About the five elements of indicators. The elements of mandatory engineering construction norms are the basic provisions to ensure the systematization and efficiency improvement of urban and rural infrastructure construction, and the basic requirements to support the high-quality development of urban and rural construction. The scale requirement of the project mainly stipulates that the construction project should have complete production or service capacity, and should be compatible with the level of economic and social development. The layout requirements of the project mainly stipulate the overall technical requirements of industrial layout, site selection of construction projects, overall design, general layout and coordination with the scale. The rational distribution of supply capacity should be considered to improve the overall level of related facilities construction. The functional requirements of the project mainly stipulate the composition and use of the project, and define the basic components of the project, which is the guarantee for the project to play its expected role. The performance requirements of the project mainly specify the construction level or technical level of the project, reflect the applicability of the construction project, and define the basic level of the project quality, safety, energy saving, environmental protection, livable environment and sustainable development. Key technical measures are the basic technical provisions to achieve the functional and performance requirements of construction projects, and the basic guarantee to implement the development goals of urban and rural construction, such as safety, green, resilience, wisdom, livability, fairness and efficiency.

About the implementation of norms. Compulsory engineering construction norms have compulsory binding force, which is to ensure the safety of people's lives and property, personal health, engineering safety, ecological environment safety, public rights and interests, as well as to promote the conservation and utilization of energy and resources, and to meet the requirements of the control bottom line in economic and social management. It must be strictly implemented in the whole process of construction activities such as survey, design, construction, acceptance, maintenance, maintenance and demolition of construction projects. Recommended engineering construction standards matched with mandatory engineering construction specifications are mature technical measures that have been tested by practice and guaranteed to meet the requirements of mandatory specifications, and should also be implemented in general. On the premise of meeting the project function, performance requirements and key technical measures stipulated in the mandatory engineering construction specifications, relevant group standards and enterprise standards can be reasonably selected to optimize the project function and performance or reach a higher level. Recommended engineering construction standards, group standards and enterprise standards shall be coordinated with mandatory engineering construction standards, and the technical requirements shall not be lower than relevant technical level of mandatory engineering construction standards. After the implementation of the

mandatory engineering construction norms, the mandatory provisions in the current relevant national and industrial standards for engineering construction shall be abolished at the same time. The mandatory provisions in the current local standards for engineering construction should be revised in time, and should not be lower than provisions of the mandatory standards for engineering construction. If the relevant provisions in the current engineering construction standards (including mandatory standards and recommended standards) are inconsistent with the provisions of the mandatory engineering construction norms, the provisions of the mandatory engineering construction norms shall prevail.

1 General

1.0.1.0.1.0

. Among them, innovative technical methods and measures shall be demonstrated and conform to the relevant performance requirements in this specification.

2 Basic provisions

2.1 Scale and layout

2.1.2.1.2.1.2.1.2.2 Construction requirements2.2.2.2.2.2.2.2.2.2.2.2.2.2.7

ground photovoltaic modules, heliostats, trough collectors and linear Fresnel collector supports shall be taken as follows:

1 Permanent action: not less than 1.2 when unfavorable to the structure;"; When it is beneficial to the structure, it should not be greater than

1.2 variable effects; when it is unfavorable to the structure, Not less than

1.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.3 Operation and maintenance

2.3.2.3.2.3.2.3

. The project safety monitoring scheme shall include the monitoring items, monitoring point layout, monitoring method, monitoring frequency and monitoring warning value during the construction period and operation period.2.3

. When the design service life is reached or after an accident or disaster, if the facility continues to be used, the safety and performance of the facility shall be evaluated. 2.3

. The site after demolition shall be cleaned and restored, and all parts and components shall be properly disposed.

3 Photovoltaic Power Generation Engineering

3.1 General Provisions

3.1.3.1.2 Photovoltaic 3.1.

3.2 PV arrays

3.2.3.2.3.2.2.2.2.2.2.2.2.3.3 Electrical system

3.3. Waterproof measures shall be taken for the electrical equipment arranged on the water surface in the water photovoltaic power generation project. 3.3

. The photovoltaic system shall be equipped with a special low-voltage switch box (cabinet) for grid connection at the grid connection place, and warning signs shall be set. 3.3 It must be confirmed that there is an obvious disconnection point at the combiner box side before connecting the cable at the DC side of the

inverter. 3.3

. When the inverter is in operation, it is strictly prohibited to disconnect the main switch or fuse of the combiner box without arc extinguishing capability.

4 Solar Thermal Power Generation Project

4.1 General provisions

4.1.4.1.4.1.4.1.4.1.4.1.4.1. 4.1.

4.1.

4.2 Light and heat collection system

4.2.4.2.4.2.2.4.2.2.4.2.2.2.0 HTML 0UNK 384.2.0 HTML0 UNK3 94.3 Heat storage and exchange system 0 HTML0 UNK4 04.3.0 HTML0 UNK4 14.3.0 HTML0 UNK4 24.3. The quality of welds between tank wall, tank bottom plate, bottom ring tank wall plate and tank bottom edge plate shall reach Grade I. 0 HTML0 UNK4 34.3. The fire hazard category of the control room in the molten salt storage and heat exchange area shall be Class D, and the fire resistance rating shall not be lower than Class II. 0HTML0UNK444.3.0HTML0UNK454.3.0HTML0UNK464.3.0HTML0UNK474.3.0HTML0UNK484.4 Power Island System 0 HTML0 UNK4 94.4.0 HTML0 UNK5 04.4.0 HTML0 UNK5 14.4.0 HTML0 UNK5 24.4.0 HTML0 UNK5 34.5 Electrical system 0 HTML0 UNK5 44.5.0 HTML0 UNK5 54.5.0 HTML0 UNK5 64.5.0 HTML0 UNK5 74.5.0 HTML0 UNK5 84.5. Thermal pipelines, oil and gas pipelines and other pipelines and equipment that may cause fire shall not be arranged in the cable interlayer.