Design Scheme for LED Display Screen in Ladder Classroom School - Anhui Chizhou Display LED Full Color Screen Passes Vibration Test

1. The display screen is a high-power electrical device. In order to use the device more safely, the connection of the display screen is necessary
The impedance between the ground terminal and the accessible metal components is ≤ 0.05 Ω, and the accessible grounding components are also included,
Limit the contact current to ≤ 2.1mA and display the module power interface and housing in the electrical strength test
Apply a test voltage of AC3000v to exposed metal parts for 1 minute without insulation breakdown
Provide scanned or photocopies of third-party authoritative inspection reports with CMA or CNAS markings in the document
Item);
2. Power adaptability: The power module of the LED display unit can operate within ± 15% of the normal voltage range
Square meter 16.295
Normal operation;
3. The display screen has certain resistance to radio interference, harmonics, and electrostatic discharge functions;
4. The longitudinal tensile bearing capacity of the display unit is ≥ 2t, and the transverse tensile bearing capacity is ≥ 2t; the four sides
Flatness tolerance ≤ 0.02mm, perpendicularity tolerance on all four sides ≤ 0.02mm;
5. The product is equipped with on-site memory protection function for power outage and supports hot plugging to avoid temporary disconnection
Movie screen usage;
6. The display screen needs to vibrate within the frequency range of (10-30~10Hz) and (30-55~30Hz)
Under the environment of dynamic amplitude of 0.75mm and 0.15mm, the device scans in cycles with X, Y, and Z axes downward
After 5 vibration tests, the appearance and structure of the sample were normal, and the equipment started working normally (as stated in the standard document)
Provide scanned or photocopies of third-party authoritative inspection reports with CMA or CNAS markings;
22. Provide the original factory authorization letter and after-sales service commitment letter when bidding (provide copies of the above certificates),
Original documents for reference during the public notice period.

Hefei Yixian Display Technology Co., Ltd. specializes in Hefei LCD splicing screens,LED full-color screenTouch query machine, queuing system, intelligent conference tablet, interactive slide screen, triage queuing and calling system, WeChat appointment queuing system, information publishing system, outdoor advertising machine.