Great quality and hot sale ac surge arrester products online | Jinli

Blog

Categories

Blog

New Blog

For SPDs used in high-altitude areas, the electrical clearance needs to be increased. How does the GB/T 18802.11 standard reflect this requirement in testing and certification?
Can the explosion-proof grade Ex db IIC T6Gb of the on-site instrument SPD replace Exd IIC T4 Gb?
What are the main types of coaxial signal SPDs? What are the differences in their working principles, technical characteristics, and application scenarios?
What is the formation mechanism of the "ground potential rise"? How it cause damage to electrical and electronic equipment inside and outside the building?
Now SPD monitoring has gone far beyond simple "on/off" indications. What intelligent directions is it developing towards?

Tags

For SPDs used in high-altitude areas, the electrical clearance needs to be increased. How does the GB/T 18802.11 standard reflect this requirement in testing and certification? Apr 28 , 2026
The GB/T 18802.11 standard explicitly acknowledges the influence of altitude on electrical clearance insulation strength and incorporates this through an "altitude correction factor" in the testing conditions. The standard typically uses 2000 meters as the baseline altitude. For surge protective devices (SPDs) claimed to operate normally at higher altitudes (such as 5000 meters), the testing requi...
Read More

1 ... 16 17 18

A total of 18 pages

Subscribe

Please read on, stay posted, subscribe, and we welcome you to tell us what you think.

Jinli Electric WeChat

Scan to wechat

Contact Us

Address :No. 97-2 Yonghe Road, High-tech Zone, Hefei, Anhui, China
Tel : 0086-0551-65307363
E-mail : jinlispd@ahjinli.com
E-mail : lynn@ahjinli.com
Whatsapp/Wechat : 15209885162

Hot Tags

Follow Us

Leave A Message

Leave A Message

Home

Products

skype

whatsapp