Views: 0 Author: Site Editor Publish Time: 2026-03-04 Origin: Site
With the continuous upsurge in factory photovoltaic installation in 2026, more and more enterprises will face a core concern when planning photovoltaic projects: Will installing photovoltaics on factory buildings affect the original fire safety acceptance? Will it lead to unqualified factory fire safety inspections and failure of the project to pass normal grid connection acceptance? In fact, the answer is clear: Photovoltaic projects with standardized design and compliant construction will not only not affect fire safety and acceptance, but also meet the compliance requirements of green factories; on the contrary, ignoring fire safety specifications and carrying out illegal construction will not only affect acceptance, but also leave serious safety hazards.
Many factory owners worry that "photovoltaic modules covering the roof and laying lines will block fire-fighting access and affect the use of fire-fighting facilities". In fact, this worry stems from a lack of understanding of specifications. According to the National Energy Administration's "Measures for the Administration of Distributed Photovoltaic Power Generation Development and Construction" and the latest fire safety standards, factory photovoltaic projects belong to the category of distributed photovoltaic power generation (the total installed capacity shall not exceed 6 megawatts in principle, and the connection point voltage shall not exceed 10 kilovolts). As long as the principle of "fire safety first and standardized construction" is strictly followed, there will be no conflict with the factory's fire safety and acceptance requirements.
Key clarification: The core of factory fire safety acceptance is "ensuring the smooth flow of personnel evacuation and fire fighting channels, and the good condition and effectiveness of fire-fighting facilities"; the core of photovoltaic acceptance is "qualified equipment, standardized construction and safe grid connection". The core requirements of the two do not conflict. On the contrary, through scientific design, a win-win situation of "power generation + safety" can be achieved. Illegal construction (such as blocking fire-fighting access, using non-flame-retardant equipment, and irregular line laying) is the fundamental reason for failed fire safety inspections and acceptance.
II. Core Fire Safety Specifications for Installing Photovoltaics on Factory Buildings
In February 2026, the state officially issued "Classification of Combustion Performance of Building Materials and Products" (GB8624—2025) and "Test Methods for Fire Performance of Photovoltaic Modules" (GB/T46980—2025), which for the first time included the fire performance of photovoltaic modules into the classification system, providing clear standards for factory photovoltaic fire safety. Both standards will be officially implemented on January 1, 2027 and have become industry reference guidelines. Combined with local practical requirements, factories need to focus on 4 points:
1. Modules and Equipment: Prioritize Flame-Retardant and Qualified Products
Core equipment such as photovoltaic modules, inverters and cables must pass nationally recognized testing and certification. Electrical components must be made of flame-retardant materials, and modules and brackets must be anti-corrosive treated according to the factory environment to eliminate fire hazards from the source. The use of unqualified and non-flame-retardant equipment is strictly prohibited, otherwise it will not only affect fire safety inspections, but also directly lead to the failure of photovoltaic project acceptance.
Special reminder: Type A and B fire hazard buildings, Class C and D dilapidated buildings, cultural relic buildings, etc., are strictly prohibited from installing photovoltaic modules. Installing photovoltaics on such factory buildings will not only fail to pass fire safety acceptance, but also be regarded as illegal construction.
Photovoltaic line laying must be away from flammable and explosive areas. Cables must be protected by flame-retardant pipes to avoid exposed and damaged lines. Joints must be sealed to prevent short circuits and fires; inverters, distribution boxes and other equipment must be installed in well-ventilated, dry areas away from fire sources, equipped with special fire-fighting facilities, and isolated from the original electrical system of the factory to avoid mutual influence. Fire departments will focus on checking the standardization of line laying and equipment fire prevention measures during inspections.
4. Operation and Maintenance Management: Establish a Fire Emergency Mechanism
After the completion of the photovoltaic project, the factory must establish a complete fire-fighting operation and maintenance mechanism: regularly inspect photovoltaic modules, lines and fire-fighting equipment, and timely clean dust and debris on the surface of modules to avoid fire caused by poor heat dissipation; equip sufficient dry powder fire extinguishers, fire sand and other equipment, organize employees to carry out special emergency drills according to the characteristics of photovoltaic equipment fires, and improve emergency response capabilities; clarify the responsibilities of operation and maintenance personnel and establish a hidden danger investigation and rectification account to ensure closed-loop management of hidden dangers.
III. Key Requirements for Acceptance of Installing Photovoltaics on Factory Buildings (Two Types of Acceptance, No Conflict)
Installing photovoltaics on factory buildings involves two types of core acceptance: the original fire safety acceptance (or fire safety inspection) of the factory building and the acceptance of the photovoltaic project itself (including grid connection acceptance). The two are independent of each other and do not affect each other. As long as they meet the specifications respectively, they can all pass smoothly.
The original fire safety acceptance (or annual fire safety inspection) of the factory building focuses on checking the fire-fighting facilities, evacuation channels, fire partitions, etc., of the factory building itself. As long as the photovoltaic installation does not damage the original fire-fighting facilities, block the evacuation channels, or change the fire partitions, it will not affect the acceptance result.
Practical suggestion: Before installing photovoltaics, first check the original fire-fighting facilities of the factory building. If it is necessary to modify the fire-fighting facilities (such as adjusting the position of fire-fighting channels), it is necessary to report to the local fire department in advance and start construction only after approval to avoid obstacles to subsequent acceptance.
① Construction Report: Before the start of the project, it is necessary to carry the construction report form and relevant materials to the local power supply station and town government (sub-district office) to complete the construction report. For photovoltaic projects on rural houses or urban houses, it is also necessary to report to the village (community) committee. Construction is not allowed without completing the report;
② Self-Inspection and Acceptance: After the completion of the project, the investment subject shall organize the design, construction, supervision and other units to conduct self-inspection and acceptance, focusing on checking the qualification of equipment, standardization of construction and implementation of fire-fighting measures;
③ Grid Connection Acceptance: After passing the self-inspection, submit an application for grid connection acceptance to the local power grid company. The power grid company will review the test reports of core equipment such as inverters, check the on-site installed capacity and equipment qualifications, and put it into grid-connected operation after passing the inspection. Grid connection is strictly prohibited without acceptance.
IV. Common Misunderstandings: These 3 Behaviors Will Definitely Affect Fire Safety/Acceptance (Key to Avoiding Pitfalls)
The failure of many factory photovoltaic projects to pass acceptance and fire safety inspections is not due to the photovoltaics themselves, but to illegal operations. The following 3 common misunderstandings must be avoided:
2. Misunderstanding 2: Using low-cost, non-flame-retardant equipment and laying lines randomly — posing serious fire hazards, failing both fire safety and photovoltaic acceptance, and possibly facing penalties;
3. Misunderstanding 3: Constructing without reporting, or connecting to the grid without acceptance after construction — belonging to illegal construction, which not only affects fire safety inspections, but also will be prohibited from grid connection by the power grid company, making it impossible to enjoy power generation benefits and even requiring demolition and rectification.
V. Real Case: Compliant Installation, Zero Obstacles to Fire Safety/Acceptance
Xinghua Jiajie Plastic Products Co., Ltd. (mentioned earlier), when installing a 690kW photovoltaic power station in 2025, strictly followed fire safety specifications: reserved a 1.5-meter-wide fire-fighting access, selected flame-retardant photovoltaic modules and cables, laid lines through flame-retardant pipes, equipped special fire-fighting equipment, and reported to the local fire department and power grid company in advance. After the completion of the project, it successfully passed the factory fire safety inspection and photovoltaic grid connection acceptance. It not only saves 300,000 yuan in electricity costs annually, but also became a model project for compliant factory photovoltaic fire safety in the local area due to standardized construction.
There is a similar case of a factory in an industrial park in Lin'an. Under the on-site guidance of the fire department and the Development and Reform Bureau, it standardized the implementation of photovoltaic fire safety measures and regularly carried out emergency drills. The photovoltaic project successfully passed the acceptance, ensuring production safety and realizing green power generation.
VI. Summary: Standardization is the Core, No Need to Worry About Fire Safety/Acceptance
In summary, installing photovoltaics on factory buildings itself will not affect fire safety and acceptance. The key lies in "standardized design, compliant construction and strict reporting". The latest 2026 policies and standards have provided clear guidelines for factory photovoltaic fire safety and acceptance. As long as the following principles are followed, "power generation cost reduction + fire safety compliance + smooth acceptance" can be achieved:
1. Pre-stage: Check in advance whether the factory building is in a prohibited construction area, report to the fire and power grid departments, and clarify construction specifications;
2. Construction: Select qualified flame-retardant equipment, standardize the laying of modules and lines, reserve fire-fighting access, and implement fire prevention measures;
3. Operation and Maintenance: Establish a fire emergency and inspection mechanism, regularly investigate hidden dangers, and ensure the normal operation of the photovoltaic system and the factory's fire-fighting facilities.
If you are worried that installing photovoltaics will affect fire safety/acceptance, you can provide the factory building type and roof conditions in advance to obtain a customized compliant construction plan, avoid all acceptance pitfalls, and ensure the smooth implementation and safe power generation of the project.
