NB/T 10544-2021Sound pick-up for mine (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the terms and definitions, product classification, technical requirements, test methods, and inspection regulations for mining pickups (hereinafter referred to as pickups) Rules and requirements for marking, packaging, transportation and storage.

This standard applies to mines with output frequency signals used in workplaces such as underground coal mines, open-pit coal mines, and other non-coal mines. Sound device.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 191 Packaging, storage and transportation pictorial signs

GB/T 2423.1-2008 Environmental testing of electric and electronic products Part 2: Test method Test A. Low temperature

GB/T 2423.2-2008 Environmental testing of electric and electronic products Part 2: Test method Test B. High temperature

GB/T 2423.4-2008 Environmental testing of electrical and electronic products Part 2: Test method Test Db. Alternating damp heat (12h 12h cycle)

GB/T 2423.5-2019 Environmental Test Part 2: Test Method Test Ea and Guideline. Impact

GB/T 2423.10-2019 Environmental Test Part 2: Test Method Test Fc. Vibration (Sine)

GB 3836.1 Explosive Atmosphere Part 1: General Requirements for Equipment

GB 3836.2 Explosive atmosphere Part 2: Equipment protected by flameproof enclosure "d"

GB 3836.3 Explosive atmosphere Part 3: Equipment protected by increased safety "e"

GB 3836.4 Explosive atmosphere Part 4: Equipment protected by intrinsically safe "i"

GB/T 4208 Shell protection grade (IP code)

GB/T 9969 General Rules for Use of Industrial Products The generation of GB/T 10111 random number and its application in product quality sampling inspection

GB/T 12173 General mine electrical equipment

GB/T 17626.2-2018 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test

AQ1043 Mining product safety mark identification

MT/T 210-1990 Basic test methods of electrical and electronic products for coal mine communication, detection and control

MT/T 899 Information Transmission Device for Coal Mine

3 Terms and definitions

The following terms and definitions apply to this document.