TB/T 2993.6-2016
Railway communication power supply equipment.Part 6:Direct current distribution (English Version)

Standard No.

TB/T 2993.6-2016

Language

Chinese, Available in English version

Release Date

2016

Published By

Professional Standard - Railway

Latest

TB/T 2993.6-2016

Replace

TB/T 2993.2-2000

Scope

This part specifies the environmental adaptability requirements, appearance and structural requirements, technical requirements, inspection methods, inspection rules, marking, packaging, transportation and storage of railway communication power supply DC distribution equipment. This section applies to power distribution equipment with a nominal DC voltage of -48 V and is composed of low-voltage electrical appliances and electronic devices. It is suitable for product manufacturing and inspection of -48 V DC power distribution equipment for railway communications.

TB/T 2993.6-2016 Referenced Document

• GB 4943.1-2011 Information technology equipment.Safety.Part 1:General requirements
• GB 50174-2008 Code for design of electronic information systern room
• GB 7947 Basic and safety principles for man-machine interface, marking and identification.Identification of conductors by colours or alphanumerics
• GB/T 18380.12-2008 Test on electric and optical fibre cables under fire conditions.Part 12:Test for vertical flame propagation for a single insulated wire or cable.Procedure for 1kW pre-mixed flame
• GB/T 191 Packaging.Pictorial marking for handling of goods
• GB/T 19520.1 Mechanical structures for electronic equipment Dimensions of mechanical structures of the 482.6mm(19in)series Part 1: Panels and racks
• GB/T 19520.17 Mechanical structures for electronic equipment.Dimension of mechanical structures of the 482.6 mm (19 in) series.Part 3-105:Dimensions and design aspects for 1U high chassis
• GB/T 19520.2 Mechanical structures for electronic equipment Dimensions of mechanical structures of the 482.6mm(19in)series Part 2: Cabinets and pitches of rack structures
• GB/T 2423.1-2008 Environmental testing for electric and electronic products.Part 2:Test methods.Tests A:Cold
• GB/T 2423.10-2008 Environmental testing for electric and electronic products.Part 2:Tests methods Test Fc:Vibration(sinusoidal)
• GB/T 2423.2-2008 Environmental testing for electric and electronic products.Part 2:Test methods.Tests B:Dry heat
• GB/T 2423.3-2006 Environmental testing for electric and electronic products-Part 2:Tesing method-Test Cab：Damp heat,steady state
• GB/T 24338.5-2009 Railway applications.Electromagnetic compatibility.Part 4:Emission and immunity of the signalling and telecommunications apparatus
• GB/T 3797 Electrical control assemblies*， 2016-02-24 Update
• GB/T 3873 General specifications for products packaging of communication equipments
• GB/T 4025 Basic and safety principles for man-machine interface,marking and identification.Coding principles for indicators and actuators
• GB/T 4798.1 Classification of environmental conditions—Classification of groups of environmental parameters and their severities Part1:—Storage*， 2019-08-30 Update
• GB/T 4798.2 Classification of environmental conditions—Classification of groups of environmental parameters and their severities—Part 2:Transportation and handling*， 2021-05-21 Update
• GB/T 4980 Determination of sound level for noise emitted by displacement compressors

TB/T 2993.6-2016 history

• 2016 TB/T 2993.6-2016 Railway communication power supply equipment.Part 6:Direct current distribution
• 2000 TB/T 2993.2-2000 -48V DC power distribution equipment for railway communication station

TB/T 2993.6-2016 Railway communication power supply equipment.Part 6:Direct current distribution has been changed from TB/T 2993.2-2000 -48V DC power distribution equipment for railway communication station.