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NB/T 11452-2023Monitoring device for armored face conveyor (English PDF)

刮板输送设备用监控装置

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Issued by

NEA

Level / Type

Industry · Recommended

Issue date

December 28, 2023

Implementation date

June 28, 2024

Scope

NB/T 11452-2023 is the English-translated version of 刮板输送设备用监控装置.

NB/T 11452-2023 covers the monitoring devices fitted to armored face (scraper) conveyors in coal mines.

It sets out product types and model designation, environmental conditions, basic parameters and the functions the device must perform, together with tolerance to supply voltage fluctuation, enclosure protection grade, explosion-proof performance, clearances and creepage distances, electrical safety, environmental adaptability, cable connection and wiring, electrical protection and grounding.

Each requirement is paired with a test method, and factory and type inspection rules, marking and packaging complete the text. It is written for the design, manufacture and inspection of these monitoring devices. Issued on 28 December 2023, it has applied since 28 June 2024.

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Document preview — NB/T 11452-2023

National Standard of the People's Republic of China

ICS: 29.260.20
Classification: D 98

Issued by: National Energy Administration of the People's Republic of China

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Product type and model compilation
4.1 Product Type
4.2 Model compilation
5 Technical Requirements
5.1 General requirements
5.2 Environmental conditions
5.3 Basic parameters
5.4 Monitoring device functions
5.5 Power supply fluctuation adaptability range
5.6 Appearance
5.7 Structure
5.8 Enclosure protection grade
5.9 Explosion-proof performance
5.10 Clearance and creepage distance
5.11 Electrical safety
5.12 Environmental adaptability
5.13 Cable connection and wiring
5.14 Electrical protection
5.15 Grounding
6 Test methods
6.1 Test conditions
6.2 Functional test
6.3 Power supply fluctuation adaptability test
6.4 Appearance inspection
6.5 Structural inspection
6.6 Enclosure protection level test
6.7 Explosion-proof performance test
6.8 Clearance and creepage distance
6.9 Electrical safety test
6.10 Environmental adaptability test
6.11 Cable connection and wiring inspection
6.12 Electrical protection inspection
6.13 Grounding Check
7 Inspection Rules
7.1 Inspection categories
7.2 Factory Inspection
7.3 Type inspection
8 Logo and packaging
8.1 Sign
8.2 Packaging

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 product types and model compilation, technical requirements, test methods, inspection rules and And logo and packaging.

This document applies to the design, manufacture and inspection of monitoring devices for scraper conveyor equipment (hereinafter referred to as "monitoring devices").

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

GB/T 156 Standard Voltage

GB/T 191 Pictorial markings for packaging, storage and transportation

GB/T 762 standard current level

GB/T 2423.1 Environmental testing for electric and electronic products Part 2: Test methods Test A. Low temperature

GB/T 2423.2 Environmental testing for electric and electronic products Part 2: Test methods Test B. High temperature

GB/T 2423.4-2008 Environmental testing for electric and electronic products Part 2: Test methods Test Db. Cyclic damp heat (12h 12h cycle)

GB/T 2423.10 Environmental testing Part 2: Test methods Test Fc. Vibration (sinusoidal)

GB/T 3836.1-2021 Explosive atmospheres Part 1: General requirements for equipment

GB/T 3836.2-2021 Explosive atmospheres Part 2: Equipment protected by flameproof enclosure "d"

GB/T 3836.4-2021 Explosive atmospheres Part 4: Equipment protected by intrinsic safety type "i"

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

GB/T 9969 General principles for instructions for use of industrial products

GB/T 10111 Generation of random numbers and their application in product quality sampling inspection

GB/T 13384 General technical requirements for packaging of electromechanical products

GB/T 14048.1-2023 Low-voltage switchgear and controlgear Part 1: General

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

AQ1043 Mining Product Safety Signs and Labels

MT/T 154.2 Method for compiling model numbers of electromechanical products for coal mines Part 2: Method for compiling model numbers of electrical products

MT209 General technical requirements for electrical and electronic products used for communication, detection and control in coal mines

MT210 Basic test methods for electrical and electronic products used for communication, detection and control in coal mines

MT/T 661-2011 General technical requirements for electrical equipment used in underground coal mines

MT/T 1008-2006 General technical requirements for coal mine safety production monitoring system software

3 Terms and definitions

The following terms and definitions apply to this document.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 19 pages — is available in the English PDF.

Referenced standards

Normative references

AQ1043 · MT/T 154.2 · MT209 · MT210

Similar standards

NB/T 11646-2024|GB/T 41052-2021

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