GB/T 40259-2021General specification for supporting quality of longwall face (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

1 Scope

This document specifies the technical requirements, test methods, inspection rules, and standards for support quality testing (hereinafter referred to as support testing) for fully mechanized mining face Logging, packaging, transportation and storage.

This document is applicable to the inspection of the support quality of the fully mechanized coal mining face.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable 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 3836.1-2010 Explosive Atmosphere Part 1: General Requirements for Equipment

GB 3836.2-2010 Explosive atmosphere Part 2: Equipment protected by flameproof enclosure "d"

GB 3836.3-2010 Explosive atmosphere Part 3: Equipment protected by increased safety "e"

GB 3836.4-2010 Explosive atmosphere Part 4: Equipment protected by intrinsically safe "i"

GB 3836.9 Explosive atmosphere Part 9: Equipment protected by encapsulated type "m"

GB/T 4208-2017 Enclosure protection grade (IP code)

The generation of GB/T 10111 random number and its application in product quality sampling inspection

GB/T 17626.3 Electromagnetic compatibility test and measurement technology Radio frequency electromagnetic field radiation immunity test

GB/T 17626.4 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test

GB/T 17626.5 Electromagnetic compatibility test and measurement technology surge (impact) immunity test

MT209 General technical requirements for electrical and electronic products for coal mine communication, detection and control

MT210-1990 Basic test method of electrical and electronic products for coal mine communication, detection and control

MT/T 772-1998 Main performance test method of coal mine monitoring system

MT/T 899 mining information transmission device

3 Terms and definitions

The following terms and definitions apply to this document.