What contents should be included in the installation drawing of outdoor LED display screens?

Mandatory Contents of Installation Drawings for Outdoor LED Displays

1. Drawing Cover & Drawing List

1. Project name, project location, names of Party A and Party B
2. Drawing revision version, drawing date, signature columns for designer, reviewer and approver
3. Complete drawing list with drawing numbers and titles for all sheets

2. Civil Foundation Construction Drawings

1. Dimensions of wall/steel structure foundation, positioning coordinates of embedded steel plates and embedded parts
2. Concrete grade of foundation, foundation load-bearing capacity, construction details of waterproof and anti-seepage structure
3. Detail drawing of anchor bolt specification, embedding spacing and embedding depth
4. Layout drawing of ground/wall waterproof layer, drainage slope and drain holes

3. Load-bearing Steel Structure Drawings

1. Specifications and material (hot-dip galvanized steel) of main and auxiliary square tubes & channel steel keels
2. Elevation drawing, side view and plane layout of steel frame
3. Detailed drawing of all welding joints, reinforcing diagonal braces and anti-corrosion treatment instructions
4. Dimension marking for connecting hangers and locks between screen and steel frame
5. Marking of wind resistance and seismic design parameters

4. LED Cabinet Layout Structure Drawings

1. Horizontal and vertical cabinet arrangement layout of the whole screen
2. External size of single cabinet, standard splicing gap and overall frame size
3. Height of screen from ground, centering dimension of left and right sides
4. Reserved size for maintenance channel (distinguish front maintenance and rear maintenance)
5. Detail drawing of outer decorative aluminum plastic panel and rainproof frame of the screen

5. Electrical Power Distribution Drawings

1. Installation position, model and specification of main distribution box and sub-boxes
2. Layout of separated strong and weak current wiring, marking cable model, wire diameter and length
3. Power distribution circuit diagram of each cabinet and power load calculation
4. Detail drawing of leakage protection, air switch specifications and lightning earthing system
5. Layout of cable conduits, cable trays and outdoor waterproof junction boxes

6. Signal Transmission System Drawings

1. Layout drawing of sending cards and receiving cards
2. Wiring path and extension distance marking of network cables / optical fibers
3. Installation position of signal relay equipment and switches
4. Standard marking of spacing between strong and weak current pipelines to prevent signal interference

7. Special Drawings for Lightning Protection & Earthing

1. Installation positions of screen surge protectors, power lightning arresters and signal lightning arresters
2. Embedding drawing of earthing flat steel and earth electrodes, standard requirements of earthing resistance
3. Schematic diagram of equipotential connection for steel frame, cabinets and distribution boxes

8. Detailed Drawings of Waterproof, Heat Dissipation & Protection Structure

1. Layout of ventilation and heat dissipation air duct at the back of the screen
2. Detail drawing of top rain eaves, bottom drainage trough and side waterproof sealing strips
3. Installation dimensions of air conditioners / axial flow fans for heat dissipation
4. Construction specifications for IP protection matching structure

9. Elevation Rendering & General Dimension Drawing

1. Overall rendering of building facade, relative position between screen and building
2. Full elevation marks, total horizontal & vertical dimensions and installation elevation marks
3. Avoidance dimensions of surrounding doors, windows, walls and pipeline
   
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10. Technical Specification & Construction Notes on Drawings

1. Material standards: specification requirements of steel, cables, waterproof glue and fasteners
2. Construction technology: construction standards for welding, anti-corrosion, waterproofing, wiring and splicing
3. Safety standards: wind load resistance, lightning earthing, load bearing and outdoor power utilization specifications
4. Acceptance standards, debugging requirements and technical clauses related to warranty