NB/T 11135-2023Metal detector of materials for mine (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 for Standardization Documents" drafting.

1 Scope

This document specifies the terms and definitions, product classification, and technical requirements of metal detection devices for mining materials (hereinafter referred to as metal detection devices).

Requirements, test methods, inspection rules and signs, packaging, transportation and storage, etc.

This document applies to metal detection devices used in underground coal mines, non-coal mines and open-pit coal mines.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the 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 icon marks

GB/T 2423.1-2008 Environmental testing for electrical and electronic products - Part 2. Test methods Test A. Low temperature

GB/T 2423.2-2008 Environmental testing for electrical and electronic products - Part 2. Test methods Test B. High temperature

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

GB/T 2423.5-2019 Environmental Testing Part 2. Test Methods Test Ea and Guidelines. Shock

GB/T 2423.10-2019 Environmental testing Part 2. Test method Test Fc. Vibration (sinusoidal)

GB/T 3836.1 Explosive atmospheres Part 1. General requirements for equipment

GB/T 3836.2 Explosive atmospheres Part 2. Equipment protected by flameproof enclosure "d"

GB/T 3836.3 Explosive atmospheres Part 3. Equipment protected by increased safety type "e"

GB/T 3836.4 Explosive atmospheres Part 4. Equipment protected by intrinsic safety type "i"

GB/T 4208 enclosure protection level (IP code)

GB/T 9969 General Rules for Instructions for Use of Industrial Products

GB/T 10111 Generation of Random Numbers and Its Application in Product Quality Sampling Inspection

GB/T 12173 General electrical equipment for mining

AQ1043 Mining product safety sign identification

MT/T 210 Basic test methods for electrical and electronic products used in coal mine communication, detection and control

MT/T 899 Coal mine information transmission device

3 Terms and Definitions

The following terms and definitions apply to this document.