详情描述

Fireproof and Shuttered Doors and Windows

1) The electromagnetic shielding door should meet the following shielding effectiveness requirements: The shielding effectiveness against magnetic fields within the frequency range of 10kHz to 10MHz should not be less than 40dB, and the shielding effectiveness against magnetic fields within the frequency range of 10MHz to 1000MHz should not be less than 30dB.

2) The fire resistance of the electromagnetic shielding door must not be less than 1.5 hours, and the weighted sound insulation rating Rw must be ≥45dB.

3) Electromagnetic shielding doors should open and close smoothly for easy evacuation of personnel.

4) Door exterior dimensions should be sized according to the door opening, considering on-site installation requirements and allowing for appropriate installation gaps.

5) The electromagnetic shielding door is tentatively selected in light gray, with the final color to be confirmed upon signing the technical agreement.

6) Each door comes with 4 keys, and the full station's barrier doors are equipped with 6 universal keys.

7) Other small spare parts such as pins, door handles, etc., bidders should consider and configure a certain quantity on their own.

8) The sizes and quantities of the windows and doors listed in the table are estimated figures; the final construction drawings shall govern.

1) The electromagnetic shielding fireproof windows should meet the following shielding effectiveness requirements: The electromagnetic shielding effectiveness of the doors should be no less than 40dB for the magnetic field within the frequency range of 10kHz to 10MHz, and no less than 30dB for the magnetic field within the frequency range of 10MHz to 1000MHz.

2) The fire resistance limit of the electromagnetic shielding fire-resistant windows must not be less than 1.5 hours; the weighted sound reduction index Rw must be ≥45dB.

3) The exterior window dimensions should be chosen based on the size of the window opening, considering the installation requirements on site and leaving sufficient installation gaps.

4) Waterproofing requirements for exterior windows: The top frame should have a drip line, and both the middle horizontal frame and the bottom frame should be equipped with drainage holes; the spacing between them should be 600mm. The opening size of the drainage holes should be 20mm wide and 5mm high, and they must be uniformly punched using special molds in the factory. On-site drilling is strictly prohibited. A waterproof cover should be installed over the drainage holes.

5) The electromagnetic shielding windows are tentatively chosen in light gray, the final color to be confirmed upon signing the technical agreement.

6) Windows with an openable electromagnetic screen must be equipped with a stainless steel mesh window.

7) The sizes and quantities of windows and doors in the table are estimated figures; the final construction drawings shall govern.