GB/T 21204.1-2007Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environments -- Part 1: Generic specifications (English PDF)

1.1 Scope

This section GB/T 21204 specifies the definitions and test methods for the quad-core symmetric multi-cable when used in harsh environments, such a cable for digital communication systems, such as Integrated Services Digital Network (ISDN), local area network and data communication systems. This part of these cables the design and testing guidelines.

1.2 Normative references

The following documents contain provisions which, through reference GB/T 21204 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 2423 (all parts), Environmental testing for electric and electronic products Part 2. Test methods [idt IEC 60068-2 (all section Minute)] GB/T 2951.1-1997 cable insulation and sheathing materials test methods - Part 1. General test method Section 1.

Measurement of thickness and overall dimensions --- mechanical tests (idt IEC 60811-1-1:1993) GB/T 2951.3-1997 cable insulation and sheathing materials test methods - Part 1. General test method Section 3.

Determination of density --- --- Water absorption tests - Shrinkage test (idt IEC 60811-1-3:1993) GB 6995.2 wire and cable identification Part II. standard color (GB 6995.2-1986, eqv IEC 60304. 1982) GB/T 11327.1-1999 PVC insulated low-frequency telecommunication cables and wires - Part 1. General test and Measurement Method (neqIEC 60189-1. 1986) GB/T 11313-1996 RF connectors - Part 1. Generic specification - General requirements and test methods (idt IEC 61169-1.

1992)

GB/T 14733.1 Telecom telecommunications terminology, channel and Network (GB/T 14733.1-1993, idt IEC 60050 (701)) GB/T 14733.8 term telecommunications telephone (GB/T 14733.8-1993, idt IEC 60050 (722)) GB/T 14733.11 term telecommunications transmission (GB/T 14733.11-1993, idt IEC 60050 (704)) Part 1 Test methods GB/T 17650.1 gases evolved during from cable combustion of materials. the total amount of halogen acid gas Determination (GB/T 17650.1-1998, idt IEC 60754-1:1994) Test Apparatus. Part 1 GB/T 17651.1 of cables burning under defined conditions the smoke density determination (GB/T 17651.1-1998, idt IEC 61034-1:1997) GB/T 17651.2 of cables burning under defined conditions Measurement of smoke density - Part 2. Test procedure and requirements (GB/T 17651.2-1998, idt IEC 61034-2:1997) GB/T 18015.1 digital communications quad Multicore and symmetrical cables Part 1. Generic specification (GB/T 18015.1-1999, idt IEC 61156-1:1994) GB/T 18380.1 cables under fire conditions test - Part 1. single insulated wire or cable vertical burning test Test method (GB/T 18380.1-2001, idt IEC 60332-1:1993) GB/T 18380.2 cables under fire conditions testing - Part 2. a single vertical insulated copper wire or cable GB/T 21204.1-2007/IEC 62012-1:2002