19

2022-02

Website System Upgrade Maintenance Bulletin

To further optimize and improve website platform function and content, improve the quality of the website, we are implementing website system to upgrade maintenance, website related content temporaril···

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22

2022-02

The compilation group of "Lightning Protection Technical Req···

On January 7, 2022, we arrived in wisdom of shenzhen security industry association jointly by shenzhen lightning protection association organized groups of standard requirements of video monitoring sy···

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01

2022-03

What Does 8/20μs And 10/350μs Represent When Selecting Sur···

Surge protector selection often see mu s 8/20 or 10/350 mu s annotations, so what is the real meaning? In simple terms, is the main purpose of surge protector when lightning occurs can instantly disch···

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01

2022-03

Guangdong, Hong Kong and Macao jointly launched the compilat···

association linkage in guangdong province, Hong Kong and meteorological parameters for design of civil building energy saving standards compiled recently, guangdong meteorological disaster prevention ···

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17

2022-01

Lightning protection engineering lead line dark laying shall···

Lightning protection label

A, lightning protection downlead installation shall meet the following requirements: 1, the main steel is used as the dark, when apply down lead each down lead shall not be less than two phi 16 mm mai···

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