GB/T 26944.3-2011
ActiveTunnel environment detection equipment - Part 3: Visibility indicator
隧道环境检测设备 第3部分：能见度检测器
Application Summary AI generated
This standard specifies technical requirements, test methods, and inspection rules for visibility detectors used in tunnel environments. It is applied in road and railway tunnels to monitor atmospheric visibility, ensuring safe driving conditions by detecting smoke, dust, or fog levels. The standard is primarily used by manufacturers, testing laboratories, and tunnel operation management units for product qualification and performance verification.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.