GB/T 47618-2026Technical requirements for specialty doors and windows in nuclear power buildings (English PDF)

4.1 Classification

4.1.1 Classification and designation by material of main load-bearing members The classification and codes according to the material of the main load-bearing members are shown in Table 1.

4.1.2 Classification and Codes by Performance The classification and codes according to performance are shown in Table 2.

4.2 Specification Representation The specifications for specialized doors and windows are presented in a six-digit table, with the thousands, hundreds, and tens digits of the door/window opening dimensions arranged sequentially. The thousands digit is represented by "0".

4.3 Marking The marking order for specialized doors and windows is. product name, standard number, material code of main load-bearing members, performance classification code and indicators, and opening mechanism. Type code and specification code (represented by the width x height of the opening mark).

5.1 Component Materials

5.1.1 The materials of the components include the main load-bearing members and the panels.

5.1.2 The main load-bearing members can be made of carbon steel, stainless steel, or aluminum alloy. The panels can be made of carbon steel, stainless steel, or glass.

5.1.3 Steel-framed doors should be made of hot-rolled steel or cold-rolled steel sheet, while the panel should be made of cold-rolled steel sheet. Hot-rolled steel should conform to GB/T 706. According to regulations, cold-rolled steel sheets should comply with the provisions of GB/T 708.

5.1.4 The properties of carbon steel shall conform to the requirements of GB/T 700.

5.1.5 Stainless steel profiles and panels shall comply with the provisions of GB/T 3280.

5.1.6 Aluminum alloy profiles shall comply with the provisions of GB/T 5237 (all parts).

5.1.7 For special gates exposed to neutron irradiation fields, the content of easily activated nuclides in the gate material should be limited, with the cobalt content being relatively low. The concentration is set at 0.1% to avoid activation of the door material.

5.2 Welding Materials

5.2.1 Welding materials should be selected according to the type of component material, welding method and design requirements.

5.2.2 Welding electrodes shall conform to the requirements of GB/T 5117, and welding wire shall conform to the requirements of GB/T 10045 and GB/T 8110.

5.2.3 The quality of the gas used in gas shielded welding shall meet the requirements of GB 50661.

5.3 Fireproof materials

5.3.1 The fire resistance rating of the fire-resistant materials used in fire doors shall meet the Class A requirements of GB 8624-2025.

5.3.2 The fire-resistant expansion sealing strip shall comply with the provisions of GB 16807, and its fire resistance integrity shall not be lower than that of the fire-resistant electrode of the matching fire-resistant doors and windows. Limited requirements.

5.3.3 The adhesive shall meet the requirements of the smoke toxicity hazard classification ZA. as specified in GB/T 20285-2006.

5.4 Sealing material

5.4.1 The sealing strip material should preferably be EPDM rubber.

5.4.2 The sealing strip and the material of its contact parts shall be compatible. The sealing strip shall comply with the provisions of GB/T 24498.

5.4.3 The sealing strips should be easy to replace.

5.5.1 Glass includes fire-resistant glass, tempered glass, laminated glass, bulletproof glass, radiation-resistant/radiation-resistant glass and their products.

5.5.2 Fire-resistant glass shall comply with the provisions of GB 15763.1.

5.5.3 Tempered glass shall comply with the provisions of JG/T 455.

5.5.4 Laminated glass shall comply with the provisions of GB 15763.3.

5.5.5 Bulletproof glass shall comply with the provisions of GB 17840.

5.5.6 The technical requirements for radiation-proof/radiation-resistant glass are given in Appendix B.

5.6 Radiation Shielding Materials

5.6.1 Carbon steel, stainless steel, lead-antimony alloy, and concrete are suitable materials for gamma-ray shielding.

5.6.2 Neutron shielding materials should preferably be polyethylene, boron-containing polyethylene, boron-containing polypropylene, or concrete.

5.7 Other Materials Other material requirements are detailed in Appendix A.

5.8 Material Re-inspection Upon Arrival at the Factory When materials and accessories for specialized doors and windows arrive at the factory, product certificates or quality assurance certificates and other accompanying technical documents should be checked, or necessary inspections should be conducted. Measure and test to verify that the indicated performance and quality indicators conform to the corresponding standards (or contract requirements) shown in Appendix A.

6.1 Appearance and Surface Quality

6.1.1 The appearance of special doors and windows should not have obvious color differences.

6.1.2 The depth of scratches and abrasions on the decorative surface of special doors and windows should be less than the coating thickness. The total area of scratches should not exceed 500 mm^2/door, and each scratch... The damaged area should not exceed 100 mm^2/house; the total length of the scratches should not exceed 100 mm/house, and both abrasions and scratches should be repaired.

6.1.3 The coating for special doors and windows should be firm and durable. When these special doors and windows are used in radiation-prone areas, the radiation resistance and stain resistance of the coating system should be... To meet the requirements for use in radiation environments, the adhesion of the coating to the metal substrate should be no less than

6.1.4 The surface of special doors and windows should be clean, smooth and flat, and should not have quality defects such as burrs, welding slag, hammer marks, and ripples.

6.2 Dimensions

6.2.1 The dimensions of special doors and windows of the same type should preferably be based on a 50 mm module.

6.2.2 For large doors with a single leaf length or width greater than 4m, the allowable dimensional deviations are shown in Table 4.

6.2.3 The dimensional deviation requirements for other specifications of doors and windows are as follows:

a) The allowable deviation for the width and height dimensions of special door and window frames and sashes is ±2mm.

b) The permissible deviation of the dimensions of the two opposite sides of the special door and window frames and sashes is ±2 mm.

c) The allowable deviation for the diagonal dimensions of special door and window frames and special door and window sashes is ±3 mm, and the allowable deviation for the groove dimensions is ±3 mm;

d) Flatness of special door and window sashes. No point on the surface should be higher or lower than the theoretical plane formed by any three points on the surface by 3 mm;

e) The allowable deviation in the thickness of special door and window sashes is -1mm to +2mm;

f) The thickness of doors with biological shielding properties must not have negative deviations.

6.3.1 Fire resistance

6.3.1.1 Special doors with fire-resistant requirements shall meet the fire integrity and fire insulation requirements of GB 12955, and all shall be fire-resistant. No less than 60 minutes.

6.3.1.2 Special windows with fire-resistant requirements shall meet the fire integrity and fire insulation requirements in GB 16809, and all shall be fire-resistant. No less than 60 minutes.

6.3.2 Biological shielding performance

6.3.2.1 Gamma-ray shielding The gamma-ray shielding performance was characterized using the equivalent homogeneous steel plate thickness T. The door leaf overlaps with the top and left/right side door frames (or door openings). The width should not be less than 40 mm, and should not be less than the thickness of the door or window sash. The gap between the door sash and the ground should not be greater than 10 mm. Gamma-ray shielding. The energy classification is shown in Table 5.

6.3.2.2 Neutron Shielding Specialized doors and windows with neutron shielding properties should ideally have a shielding structure composed of a combination of materials. From the hot side to the cold side, the shielding materials should be in the order of gamma rays. Shielding materials, neutron shielding materials, gamma shielding materials

Note. The hot side refers to the side closer to the radiation source or the side with a relatively higher source intensity, while the cold side refers to the side farther away from the radiation source or the side with a relatively lower source intensity.

6.3.7 Ballistic Protection Performance Specialized doors and windows with bulletproof properties were used. A single shot was fired from a Type 79 7.62mm sniper rifle at a distance of 50 meters from the specimen; the specimen should not be penetrated. It is transparent and there are no fragments peeling off the back.

6.3.8 Protection against projectiles

6.3.8.1 The anti-shooting performance of special doors and windows should ensure that the panel is not damaged or suffers any impact from projectiles such as steel pipes or automobiles. It is slightly damaged but has not formed a penetrating opening or crack, and can be opened normally.

6.3.8.2 The thickness of the outer steel panel of special doors and windows with anti-projectile properties shall be determined according to design requirements, and the maximum stress of the steel panel shall be... The deformation of the steel panel should be less than the yield strength of the material, and the deformation should not have entered the plastic range. The thickness should also be no less than 8 mm.

6.3.8.3 The anti-shooting performance of special doors and windows is divided into two levels according to the type, size, mass and speed of the shooting object, as shown in Table 10.

6.3.9 Opening and closing performance

6.3.9.1 The durability rating of special doors and windows with biological shielding properties under repeated opening and closing is shown in Table 11.

6.3.9.3 The opening and closing force of the door and window sashes of special doors and windows that only have fire-resistant properties should not exceed 80 N.

6.3.9.4 The opening and closing force of the door leaf of a special door with two or more functions shall not exceed 120 N.

6.3.10 Compartmental pressure bearing capacity

6.3.10.1 The pressure bearing capacity of the compartment is classified according to the pressure difference force when the compartment is overpressured, and the classification is shown in Table 13.

6.3.10.2 Under pressure conforming to Table 13, the relative deflection of the main load-bearing members (surface normal) should not exceed L/1500 (L is the door body). (The smaller of the height and width), and the absolute deflection should not exceed 2 mm.

6.3.11 Seismic performance

6.3.11.1 Special doors and windows with seismic resistance requirements are classified into seismic performance class I and seismic performance class II according to the degree of impact on nuclear safety of nuclear power plants.

6.3.11.2 Specialized doors and windows maintain their structural integrity and performance even under the extreme safe ground motion (SL-2) of a nuclear power plant. Their seismic performance... It belongs to Class I.

6.3.11.3 Specialized doors and windows may lose performance due to localized damage under the operational safety ground vibration (SL-1) of a nuclear power plant, but the door structure itself can be guaranteed to remain intact. In the event of detachment or collapse, it will not cause secondary disasters under seismic conditions, nor will it have an unacceptable impact on seismically resilient Class I structures, systems, and equipment. It may endanger the safety of personnel in the main control room. Its seismic performance is Class I.

7.1 Appearance and Surface Quality

7.1.1 Coating adhesion shall conform to the requirements of GB/T 5210.

7.1.2 Scratches should be measured using a steel ruler (accuracy ±0.5mm).

7.1.3 Other surface quality shall be inspected by visual observation at a distance of >=0.5m from dedicated doors and windows under sufficient natural light.

7.2 Dimensions

7.2.1 The specifications of special doors and windows shall be measured using a steel tape measure (accuracy class I).

7.2.2 The dimensions of the frames and sashes of special doors and windows should conform to the requirements of Table 14.

7.3.1 Fire resistance

7.3.1.1 Special doors with fire protection requirements shall undergo fire resistance testing in accordance with GB/T 7633.

7.3.1.2 Special windows with fire resistance requirements shall undergo fire resistance tests in accordance with GB/T 12513.

7.3.2 Biological shielding performance

7.3.2.1 The overlap width between the door leaf and the door frame (or door opening) above and on the left and right sides shall be measured with a steel tape measure (accuracy class I).

7.3.2.2 The gap between the door leaf and the ground shall be measured with a feeler gauge (accuracy ±

0.02 mm).

7.3.2.3 The chemical composition analysis of radiation shielding materials shall be carried out in accordance with the testing standards for various materials.

7.3.3 Air tightness performance

7.3.3.1 Perform pre-pressurization first, then perform test pressurization. The test pressurization loading rate is 100 Pa/s, with each 500 Pa increment constituting one pressure level. Each pressure platform has a pressure stabilization time of 3 seconds.

7.3.3.2 After the specimen reaches the design pressure difference, maintain the pressure for 1 hour and measure the gas permeation under the test conditions for 1 hour.

7.3.3.3 Under the design pressure difference, the gas permeability of the entire set of special doors and windows under standard conditions shall be tested according to the engineering test specified in GB/T 7106. The data processing method has been determined.

7.3.3.4 Record the permeation pressure difference of the three specimens, and use the permeation pressure difference as the test value of the airtightness of the specimen. The minimum detectable value is used as the test value for airtightness rating.

7.3.4 Waterproofing performance The test method for waterproof performance is given in Appendix C.

7.3.5 Wind pressure resistance performance According to the wind pressure resistance requirements of the tested items, the test shall be conducted in accordance with the provisions of GB/T 7106.

7.3.6 Explosion-resistant performance According to the explosion resistance requirements of the tested items, the tests shall be conducted in accordance with the provisions of GB/T 29908.

7.3.7 Ballistic Protection Performance

7.3.7.1 The bulletproof performance of special doors and windows shall be tested in accordance with the test method of GB 17840.

7.3.7.2 The test shall be conducted in an environment with normal temperature and pressure and relative humidity of 40% to 80%.

7.3.7.3 The test specimens should be produced using the same materials and under the same process conditions as the product.

7.3.7.4 Fix the specimen on the test stand, ensuring that the impact surface of the specimen faces the muzzle of the firearm and is perpendicular to the design direction. The center of the specimen should be marked... Point of impact of the bullet.

7.3.7.5 After a single shot, observe the condition of the specimen.

7.3.8 Protection against projectiles The calculation method for anti-launch performance is given in Appendix D.

7.3.9 Opening and closing performance

7.3.9.1 The test shall be conducted in accordance with the requirements of GB/T 29739 based on the repeated opening and closing durability performance of the tested item.

7.3.9.2 The opening and closing force of special doors shall be tested according to GB/T 29555, and the opening and closing force of special windows shall be tested according to GB/T 29048. Conduct an experiment.

7.3.10 Compartmental pressure bearing capacity The finite element method can be used to calculate the deflection deformation of each part under the action of pressure difference.

7.3.11 Seismic performance

7.3.11.1 The calculation method for the seismic performance of special doors and windows is given in Appendix E.

7.3.11.2 The calculation and evaluation shall be performed with the door closed.

7.4 Test Sequence When using the same set of specimens for two or more tests, the principle should be followed that the result of the previous test does not affect the result of the subsequent test. The order of testing is determined by (e.g., non-destructive testing first, followed by destructive testing).

8.2 Factory Inspection

8.2.1 Sampling Rules The appearance and surface quality, as well as the dimensions of the frame and sash, are all inspected.

8.2.2 Judgment and Re-inspection Rules

8.2.2.1 If all the inspection results of the sampled products meet the requirements of this standard, the batch of products shall be deemed qualified.

8.2.2.2 If any product fails the inspection, the entire batch of products shall be deemed unqualified.

8.2.3 Certificate of Conformity After the quality inspection department of the manufacturing plant has inspected each item according to the factory inspection items and found them to be qualified, it issues a certificate of conformity.

8.3 Type testing

8.3.1 Timing of Inspection Type testing should be conducted under any of the following circumstances.

a) Trial production and type approval of new products or old products transferred to other factories for manufacturing;

b) After formal production begins, if there are significant changes in structure, materials, or processes that may affect product performance;

c) During normal production, testing should be conducted every five years;

d) When production resumes after a period of suspension of more than one year;

e) In the event of a major quality incident;

f) When the factory inspection results differ significantly from the previous type inspection results.

8.3.2 Sampling Rules For products of the same type that have passed factory inspection, the appearance, surface quality, and frame and sash dimensions must be fully inspected. Other type inspection items are as per Table 15. The specified number of test specimens are randomly selected for testing.

8.3.3 Judgment and Re-inspection Rules

8.3.3.1 If all the sampled products meet the inspection results for a certain type of inspection item specified in Table 15, the batch of products is deemed to have passed the type inspection for that item. If any product fails the inspection, the entire batch of products is deemed to have failed the type test for that specific item. If all the inspection items specified in Table 15 are qualified, the product type inspection is deemed qualified. If any inspection item fails, the product type inspection is deemed qualified. The product failed the type inspection.

9.1 Product Marking

9.1.1 Mark Content Product markings should include the following.

a) Product name, model specifications, and trademark;

b) Manufacturer's name;

c) Production date;

d) Implementation standards; e. Door and window codes.

f) Performance requirements for doors and windows;

g) Room codes on both sides of doors and windows.

9.1.2 Warning signs and instructions For products with complex structures and unique opening methods, improper use may cause damage to the product itself or other equipment, or create safety issues. Warning signs and instructions (including text and illustrations) should be provided for door and window products.

9.1.3 Marking Method

9.1.3.1 Each door and window shall have a permanent nameplate installed in a conspicuous location. The nameplate content shall be simple, clear, and easy to read, and shall be valid for the entire lifespan of the nuclear power plant. There will be no issues such as font detachment or blurring that affect recognition.

9.1.3.2 The manufacture of nameplates shall comply with the provisions of GB/T 13306.

9.1.3.3 Product warning signs and instructions shall be installed near the handles or levers of dedicated doors and windows.

9.2 Product Accompanying Documents

9.2.1 Product Certificate The product should have a product certificate, which should include the following main contents.

a) The standard number being implemented;

b) Factory inspection items, inspection results, and inspection conclusions;

c) Product inspection date, manufacturing date, and inspector's signature or stamp (which may be indicated by the inspector's code).

9.2.2 Product Quality Guarantee Certificate The product should have a product quality guarantee certificate, which should include the following main contents.

a) Product name, trademark, and logo (including the applicable standard number);

b) Performance parameter values from the product type test, along with the product type test report number;

c) Product batch size, dimensions, specifications, and models

d) Product surface treatment type, color, and coating thickness

e) The product's production date, inspection date, and shipping date, along with the quality inspector's signature and the manufacturer's quality inspection stamp;

f) Manufacturer's name, address, and contact information for handling quality issues;

g) Username and address.

9.2.3 Product Installation and Operation Manual

9.2.3.1 Each batch of products should be accompanied by an installation and user manual upon leaving the factory or delivery. The preparation of the product installation and user manual should comply with... The provisions of GB/T 9969.

9.2.3.2 The product installation and operation manual should include the main aspects such as product description, installation instructions, operation instructions and maintenance instructions.

9.2.3.3 Product installation requirements are detailed in Appendix F.

9.2.4 Packing List The packing list should include the following main contents.

a) Names and addresses of the shipper and consignee;

b) The name, type, specifications, and quantity of the items inside the box;

c) Weight and dimensions of the packaging box.

d) Signatures of the shipper and consignee;

e) Shipping and receipt dates.

9.3 Product QR Code

9.3.1 It is advisable to use QR codes to identify each set of dedicated door and window products.

9.3.2 The QR code should be permanent and meet the traceability requirements for product quality and safety issues.

9.3.3 The data structure, information services, and symbol printing quality requirements of QR codes shall comply with the provisions of GB/T 33993.

10.1 Packaging

10.1.1 The packaging of products and their hardware accessories shall be safe, reliable, and easy to load, unload, transport and store.

10.1.2 The packaging box should have sufficient load-bearing capacity to ensure that it is not damaged under normal transportation and storage conditions.

10.1.3 Packaging, storage and transportation pictorial markings and usage methods shall comply with the provisions of GB/T 191.

10.1.4 Packaging materials containing lead, mercury, or halogens are prohibited.

10.2 Transportation

10.2.1 Avoid collisions with the packaging boxes during transportation.

10.2.2 The means of transport shall be protected against rain and kept clean and free from pollution.

10.2.3 During loading and unloading, handle with care and avoid dropping, throwing, or bumping to prevent damage to the special door and window structure and paint coating.

10.3 Storage

10.3.1 The product should be placed in a ventilated, dry, and rainproof place. It should not be stored in the open air and should not come into contact with acidic, alkaline, or saline substances.

10.3.2 The product must not come into direct contact with the ground, and the bottom should be raised by at least 100 mm.

10.3.3 When products are laid flat, non-metallic blocks should be used to level them. The stacking height of door and window frames should not exceed 1.5m, and the stacking height of door and window sashes should not exceed

1.2 m. When the product is placed upright, the angle of its upright position should not be less than 70°, and anti-tipping measures should be provided.