MT 428-2007
Active
MT/T 189-2025
Active
Industry standards-Coal
MT/T 189-2025 Low-voltage AC vacuum circuit breaker for coal mine usage
MT/T 189-2025 Low-voltage vacuum AC circuit breaker for coal mine
Price:
$ 74
Basic Information
Standard Code:
MT/T 189-2025
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Explosion-proof electrical appliances
ICS Name:
For special working conditions, use other electrical equipment
Publish Date:
2025-09-28
Implement Date:
2026-03-28
Pages:
28 pages
Scope
This document is applicable to low-voltage AC vacuum circuit breakers used in coal mines, with a frequency of 50 Hz, a rated voltage of 1,140 V or less, and a current of up to 1,600 A.
Development Information
Replace the following standards
MT/T 829-1000
Related Standards
MT/T 429-2008
Abolished
MT/T 429-2008 The flame-proof low voltage electric cable terminal box for coal mine
MT/T 428-2008
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MT/T 428-2008 The flame-proof electric bell for coal mine
DL/T 880-2004
Active
DL/T 880-2004 Flexible conductor cover(line hoses)of insulating material for live working
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Technical Requirements for Hydrogen Production System from Diesel Reforming in Emergency Power Supply for Special Environments, T/CES 121-2022
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Active