MT/T 429-2025 Active Industry standards-Coal

MT/T 429-2025 Explosion-proof grounding protection device for coal mines

Publish Date: 2025-09-29 Implement Date: 2026-03-28 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: MT/T 429-2025

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Special equipment and supplies for coal mines

ICS Name: Electric equipment for use in explosive environments

Publish Date: 2025-09-29

Implement Date: 2026-03-28

Publisher: 国家能源局

Technical Committee: 煤炭行业煤矿安全标准化技术委员会

Scope

本文件适用于在交流 50Hz、额定电压1140V及以下三相中性点不直接接地的煤矿供电系统中的煤矿用防爆型漏电保护装置.

Development Information

Drafting Units:

中煤科工集团沈阳研究院有限公司、安标国家矿用产品安全标志中心有限公司、山东中兰致诚自动化设备有限公司

Drafting Persons:

张红奎、秦燕、吴钰品

Replace the following standards

MT/T 198-1988

Related Standards

GB 5590-1985 Replaced

GB 5590-1985 Mining type flameproof electric magnetic starters

Publish Date: 1985-11-20

GB 3836.9-1990 Replaced

GB 3836.9-1990 Electrical apparatus for explosive atmospheres Encapsulated electrical apparatus "m"

Publish Date: 1990-08-27

GB 3836.11-1991 Replaced

GB 3836.11-1991 Electrical apparatus for explosive atmospheres-Method of test for ascertainment of maximum experimental safe gap

Publish Date: 1991-05-27

GB 3836.12-1991 Replaced

GB 3836.12-1991 Electrical apparatus for explosive atmospheres—Classification of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting currents

Publish Date: 1991-05-27

GB 3836.13-1997 Replaced

GB 3836.13-1997 Electrical apparatus for explosive gas atmospheres—Part 13:Repair and overhaul for apparatus used in explosive gas atmospheres

Publish Date: 1997-12-30

MT 703-1997 Replaced

MT 703-1997 Technical condition of electro-chemical type carbon monoxide instrumentation for coal mine

Publish Date: 1997-12-30