Ningbo Yuhui Communication Equipment Co., Ltd.
Ningbo Yuhui Communication Equipment Co., Ltd. High Quality Sincere Co-operatio Superior Service
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Environmental adaptability requirements
Temperature adaptability
After the high temperature test, the chassis should not have the following defects:
- warpage, damage or damage, permanent deformation of the chassis of the chassis;
- The movable parts of the doors, windows and orifice cover plates are not flexible or the locking is not reliable;
— Expansion, cracking, and shedding of parts such as coatings and seals;
- Bending, loosening, displacement or damage of mountings, fasteners;
- corrosion of metal parts or peeling off of coating;
— Other defects.
Salt spray corrosion
After the salt spray test, the metal chassis should be free from corrosion. Other non-metallic components should have no degraded protection.
waterproof
The chassis should meet the IPX3 waterproof rating requirements in GB 4208-1993.
dust-proof
Chassis should meet the IP3X dustproof requirements in GB 4208-1993.
Lightning protection
Chassis should reserve power SPD installation location.
Power supply should be installed air switch.
6.5.2 lightning protection module technical parameters: IN20KA, MAX40KA, UC385V. (need to confirm)