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NB/T 11144-2023Protection and control device for mine winch (English PDF)

矿用绞车保护控制装置

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Issued by

NEA

Level / Type

Industry · Recommended

Issue date

February 6, 2023

Implementation date

August 6, 2023

Scope

NB/T 11144-2023 is the English-translated version of 矿用绞车保护控制装置.

NB/T 11144-2023 is the Chinese energy industry standard for protection and control devices on mine winches. Such a device provides protective and interlocking control against overtravel, overspeed, loss of rope tension and emergency stop while the winch is working, and it can display the running position of the winch.

The standard gives product model and classification, technical requirements, test methods, inspection rules, and marking, packaging, transport and storage. Its references include environmental tests, enclosure protection, explosion protection, general mining electrical equipment and the general specification for computer sites in GB/T 2887.

It applies to winch protection devices in underground coal mines, open-pit coal mines, non-coal mines and other workplaces. Issued on 6 February 2023, it has applied since 6 August 2023.

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Document preview — NB/T 11144-2023

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 model and classification
5 Technical requirements
6 Test method
7 Inspection rules
8 Labeling, packaging, transportation and storage

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 model and classification, technical requirements, test methods, inspection Inspection rules, signs, packaging, transportation and storage.

This document is applicable to mine winch protection and control devices in underground coal mines, open-pit coal mines, non-coal mines and other workplaces.

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 2887 General Specifications for Computer Sites

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

GB/T 3836.2 Explosive atmospheres Part 2. Equipment protected by flameproof type "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 210-1990 Basic test methods for electrical and electronic products for communication, detection and control in coal mines

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Mine winch protection and control device

Realize the protection and locking winch control functions such as offside, overspeed, tension drop, emergency stop, etc. when the mining winch is working, and can display the winch operation location of the device.

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

Referenced standards

Normative references

AQ1043 · MT/T 210-1990

Similar standards

NB/T 11642-2024|NB/T 11628-2024|NB/T 11632-2024|NB/T 11639-2024|NB/T 11641-2024|NB/T 11106-2023

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