Anhui Qidao Intelligent Door Industry Co., Ltd. (Steel Folding Doors, Factory Folding Doors, Transformer Room Folding Doors):

Outdoor doors and windows for transformer rooms, either independent or attached, enclosed or open, suitable for industrial and civil buildings. There are two types of enclosed transformer rooms: high and low. When the low transformer room does not meet the ventilation requirements, a high transformer room should be used.
Door and window type numbers
Transformer rooms steel doors and windows are divided into two main categories: doors with frames (YMA) and windows with frames (YCA), as well as doors and windows without frames (YMB and YCB). Doors and windows with frames use cold-bent thin-walled steel tubes as the frame and color steel plates as the panels. Doors and windows without frames use angle steel as the frame and ordinary steel plates as the panels.
Door Code:
YMA (B) 1 - Door with louvered windows and steel mesh air intake ports
YMA (B) 2 - Door with steel mesh inlet (without louver)
YMA (B) 3 - Steel Plate Door (No air intake on the door leaf)
YMA (B) 4 - Steel Plate Mesh Door
Door opening size:
The door openings of the enclosed transformer rooms come in three widths: 2100, 2400, and 3000mm; and three heights: 2700, 3300, and 3600mm. These combinations create six different opening sizes.
The openings of the open transformer rooms are available in three widths: 2100, 2400, and 3000mm, with all doors being 1800mm in height.
Window Model Code:
YCA(B)1 - Steel Plate Mesh Window: Used as an air intake window at the bottom of a high-type transformer room.
YCA (B) 2 - Louvers with steel mesh: Used as exhaust windows at the top of enclosed transformer rooms.
YCA (B) 3 - Louvers with cable installation holes and steel mesh: Used as exhaust windows at the top of enclosed transformer rooms.
Window Hole Size:
Window openings are available in widths of 2100, 2400, and 3000. YCA(B)1 windows come in two heights: 600 and 900; YCA(B)2 windows offer six heights: 600, 900, 1200, 1500, 1800, and 2100; YCA(B)3 windows are available in five heights: 900, 1200, 1500, 1800, and 2100.

Structural requirements specifications
Doors and lintels are available for walls with thicknesses of 240mm and 370mm respectively.
The doors are cast-in-place on-site. The lintel is cast-in-place when doors are present, and can also be pre-fabricated when there are no doors.
Application Range
Suitable for industrial and civil building power distribution stations; the power distribution station steel door can be equipped with an integrated mechanical and electrical motor-driven control system and an intelligent induction system; the power distribution station steel door is suitable for areas with basic wind pressure ≤ 0.7 kPa and temperatures ranging from -40°C to 40°C.

Anhui professional manufacturer of factory folding doors, transformer room folding doors, substation folding doors, transformer room swing doors, and standard steel doors for transformer stations, referencing the 17J610-1 transformer station steel door and window catalog. Standard customization. Factory direct sales, professional customization.