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GB/T 26944.4-2011Tunnel environment detection equipment - Part 4: Wind speed & direction indicator (English PDF)

隧道环境检测设备第4部分：风速风向检测器

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 19, 2011

Implementation date

May 1, 2012

Scope

GB/T 26944.4-2011 is the English-translated version of 隧道环境检测设备第4部分：风速风向检测器.

GB/T 26944.4-2011 is the Chinese standard "Tunnel environment detection equipment - Part 4: Wind speed & direction indicator".

Its scope clause reads: This section GB/T 26944 specifies the tunnel wind speed and direction detector product classification, technical requirements, test methods, inspection rules, marking Chi, packaging, transport and storage.

This section applies to highways and urban roads in the tunnel with environmental testing equipment, environmental testing equipment with other tunnels can refer to use. Its clauses include terms and definitions.

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Document preview — GB/T 26944.4-2011

National Standard of the People's Republic of China

ICS: 93.080.30
Classification: R 80

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and Definitions
3.1 Winds windspeed
3.2 Wind winddirection
3.3 Start wind speed startingwindspeed
4.1 The main technical indicators

1 Scope

This section GB/T 26944 specifies the tunnel wind speed and direction detector product classification, technical requirements, test methods, inspection rules, marking

Chi, packaging, transport and storage.

This section applies to highways and urban roads in the tunnel with environmental testing equipment, environmental testing equipment with other tunnels can refer to use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 26944.1-2011 tunnel environment testing equipment - Part 1. General

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Winds windspeed

Specific point in space around gas micelles displacement in the horizontal direction per unit time.

3.2 Wind winddirection

Space around a specific point in the direction of movement of gas micelles in a horizontal plane.

3.3 Start wind speed startingwindspeed

Wind speed and direction detector has the lowest wind speed indication when displayed.

4. Technical Requirements

4.1 The main technical indicators

The main technical indicators in Table 1.

Table 1 Measuring range and measurement accuracy index

The main technical indicators wind speed and direction detector

Wind measurement accuracy shall not exceed ± 3 °

Wind speed measurement accuracy ± 0.2m/s

Start wind speed should not exceed 0.2m/s

Measuring range

Wind 0 ° ~ 360 °

Wind speed (0.2 ~ 30) m/s […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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