GB/T 35060.4-2021General specification of shearer—Part 4: Electric control system (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.

This document is the fourth part of GB/T 35060 "General Technical Requirements for Drum Shearers". GB/T 35060 has released the following section.

---Part 1: The whole machine;

---Part 2: Cutting transmission device;

---Part 3: Walking driving device;

---Part 4: Electrical control system.

1 Scope

This document specifies the requirements, test methods, and inspection regulations for the electrical control system of the drum shearer used in the coal mining face of underground mechanized mining. Rules, signs, packaging, transportation and storage.

This document is applicable to the electrical equipment of drum shearers (hereinafter referred to as "shearers") with power supply voltage levels of 660V, 1140V and 3300V. Control system (hereinafter referred to as "electric control system").

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 311.1-2012 Insulation coordination Part 1: Definitions, principles and rules

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

GB/T 11022-2011 Common technical requirements for high-voltage switchgear and control equipment standards

GB/T 13306 signs

GB/T 13384 General technical conditions for packaging of mechanical and electrical products

GB/T 14048.1-2012 Low-voltage switchgear and control equipment Part 1: General

GB/T 14048.3-2017 Low-Voltage Switchgear and Control Equipment Part 3: Switches, Isolators, Isolating Switches and Fuse Groups He Electric

GB/T 14048.4-2010 Low-voltage switchgear and control equipment Part 4-1.Contactors and motor starters electromechanical Contactor and motor starter (including motor protector)

GB/T 14808 High-voltage AC contactors, contactor-based controllers and motor starters

GB/T 35060.1-2018 Drum Shearer General Technical Requirements Part 1: Complete Machine

GB/T 35060.3-2018 Drum Shearer General Technical Requirements Part 3: Walking Drive Device AQ1043-2007 Mining product safety mark identification

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

3 Terms and definitions

The following terms and definitions apply to this document.