1 General

1.0.1 This standard is specially formulated for the purpose of designing underground building lighting to meet the long-term visual effects, ensuring advanced technology, safe use and convenient maintenance.

1.0.2 This standard applies to the lighting design of underground commercial hotels, hospitals and parking lots built, rebuilt and expanded.

1.0.3 The lighting design of underground hotels, hospitals and parking lots shall comply with the relevant national standards and norms in addition to complying with this standard. Civil air defense works should implement the current regulations of civil air defense works.

2 nouns, terms

2.0.1 Transition lighting is an illumination that is designed to reduce the brightness difference between the interior of the building and the outside world.

2.0.2 Ambient illumination The illumination of the outdoor horizontal plane on full cloudy days.

2.0.3 Annual average illuminance The annual average of the measured illuminance per hour measured half an hour after sunrise to half an hour before sunset.

3 illuminance standard

3.1 General provisions

3.1.1 Illumination values ​​for underground buildings are graded according to the following series: 0.5, 1, 2, 3, 5, 10, 15, 20, 30, 50, 75, 100, 150, 200, 300 and 500 Lx.

3.1.2 Illumination standard value refers to the average illuminance value on the reference plane of work, activity or living place.

3.1.3 The illuminance standard value is the maintenance illuminance value, and the maintenance factor should meet the requirements of Table 3.1.3.


Note: 1 for a particularly clean room such as the operating room can take 0.80;

2 This watch is suitable for fluorescent lamps and high-intensity discharge lamps. When using tungsten halogen lamps and incandescent lamps, the maintenance factor can be increased by 0.05.

3.1.4 For different activities or types of work of various types of buildings, the illuminance standard values ​​shall specify three values: high, medium and low. In general, the median value is taken, and the appropriate illuminance value can be selected according to factors such as the size of the building, the use situation, and the location.


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5G Outdoor CPE

5G Outdoor CPE (Customer Premises Equipment) refers to 5G user terminal equipment used in outdoor environments. It is a device that connects to a 5G network and provides wireless network connectivity, which can be used in various scenarios such as homes, businesses, and public places. The features and advantages of 5G Outdoor CPE are described in detail below.

First, features:
1. High-speed connection: 5G Outdoor CPE uses 5G technology, with higher transmission rates and lower latency. It can provide faster download and upload speeds than 4G networks, meeting users' needs for high-speed networks.

2. Large capacity: 5G Outdoor CPE supports more device connections, which can meet the needs of multiple users at the same time. It provides a higher network capacity and supports more terminal devices. It is suitable for scenarios where multiple devices need to be connected to a home or enterprise.

3. Wide coverage: 5G Outdoor CPE has wider coverage, which can provide better signal coverage and stability. It is suitable for outdoor environments and can provide better network connectivity in outdoor locations, whether in urban, rural or remote areas, with good signal coverage.

4. High reliability: 5G Outdoor CPE adopts a variety of technologies to improve network reliability, such as Multiple-Input Multiple-Output (MIMO) technology and Beamforming technology. It can provide a more stable and reliable network connection and reduce the risk of network outages and failures.

5. Flexible deployment: 5G Outdoor CPE can be flexibly deployed according to actual requirements. It can be installed on the exterior walls of buildings, roofs, telephone poles, etc., to maximize signal coverage. At the same time, 5G Outdoor CPE also supports a variety of installation methods, such as wall hanging, pole, etc., to adapt to different installation environments.

6. Simplified management: 5G Outdoor CPE supports remote management and monitoring, and can centrally manage devices through the cloud platform. Administrators can monitor device running status, troubleshoot and upgrade devices anytime and anywhere to improve management efficiency and O&M effect.

2. Advantages:
1. High-speed network experience: 5G Outdoor CPE can provide faster network speed and lower latency, and users can enjoy a smoother network experience. Whether watching HD videos, playing online games or downloading large files, you can get faster response times and higher transfer rates.

2. Multi-device connection: 5G Outdoor CPE supports more device connections, which can meet the needs of multiple devices in homes, enterprises and other places to access the Internet at the same time. Whether it is a smartphone, tablet, TV, camera or other smart device, it can be connected to the network through 5G Outdoor CPE to achieve connectivity.

3. Stable and reliable: 5G Outdoor CPE uses a variety of technologies to improve network stability and reliability. It can provide a more stable network connection by automatically selecting the best channel and automatically optimizing the signal. At the same time, 5G Outdoor CPE also supports backup and failover functions. When the primary device fails, it can be automatically switched to the standby device to ensure network continuity and stability.

4. Wide coverage capability: 5G Outdoor CPE has a wider coverage range, which can provide better signal coverage and expansion capability. It can cover a larger area and meet the network needs of different places. Whether in urban, rural or remote areas, you can get a stable Internet connection.

5. Flexible deployment and management: 5G Outdoor CPE can be flexibly deployed and managed according to actual requirements. It can be installed in different locations to maximize signal coverage. At the same time, 5G Outdoor CPE supports remote management and monitoring, and can centrally manage devices through the cloud platform, improving the management efficiency and operation and maintenance effect of devices.

In SUMMARY:
As a 5G user terminal device used in Outdoor environments, 5G Outdoor CPE has the features and advantages of high-speed connection, large capacity, wide coverage, high reliability, flexible deployment, and simplified management. It can provide faster network speed and lower latency to meet the needs of users for high-speed network; Support more device connections to meet the needs of multiple users at the same time; With wider coverage, providing better signal coverage and stability; Use a variety of technologies to improve network reliability and reduce the risk of network outages and failures; It can be flexibly deployed according to actual requirements to adapt to different installation environments. Supports remote management and monitoring, improving device management efficiency and O&M effect. The emergence of 5G Outdoor CPE will further promote the development of 5G networks and provide users with a better network experience.

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