MT 871-2011
Mining explosion-proof switchgear with vacuum circuit breaker for low-voltage alternate circuit (English Version)

Standard No.

MT 871-2011

Language

Chinese, Available in English version

Release Date

2011

Published By

Professional Standard - Coal

Latest

MT 871-2011

Replace

MT 871-2000

Scope

This standard specifies the classification, characteris ics, structural and performance requirements, test methods, inspection rules, marking, packaging, transportation and storage of mine explosion-proof low-voltage AC vacuum feed switches. This standard is suitable for use as a main dis ribution switch or branch feed switch for AC 50Hz, voltage up to 1200V circuits in mines containing gas and coal dust. It is also suitable for feed switches that directly control large-capacity motors that start infrequently.

MT 871-2011 Referenced Document

• GB 14048.1-2006 Low-voltage switchgear and controlgear. Part 1: General rules
• GB 14048.2-2008 Low-voltage switchgear and controlgear.Part 2: Circuitm-breakers
• GB 14048.4-2003 Low-voltage switchgear and controlgear-Electromechanical contactors and motor-starters
• GB 14048.5-2008 Low-voltage switchgear and controlgear.Part5-1: Control circuit devives and switching element.Electromechanical control circuit devices
• GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres-Part 1: General requirements
• GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres-Part 2: Flameproof enclosure "d"
• GB 3836.3-2000 Electrical apparatus for explosive gas atmospheres-Part 3:Increased safety "e"
• GB 3836.4-2000 Electrical apparatus for explosive gas atmospheres. Part 4: Intrinsic safety“i”
• GB/T 13384-2008 General specifications for packing of mechanical and electrical product
• GB/T 13534-2009 Code for designation of colours
• GB/T 191-2008 Packaging.Pictorial marking for handling of goods
• 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 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
• GB/T 4026-2004 Basic and safety principles for man-machine interface,marking and identifieation-ldentification of equipment terminals and of terminations of certain designated conductors,including general rules for an alphanumeric system
• GB/T 4205-2003 Man-machine interface(MMI)--Actuating principles
• GB/T 762-2002 Standard current ratings

MT 871-2011 history

• 2011 MT 871-2011 Mining explosion-proof switchgear with vacuum circuit breaker for low-voltage alternate circuit
• 2000 MT 871-2000 Mining type flameproof switchgear with vaccum circuit breaker for low-voltage alternate circuit