GB/T 13849.1-2013Local telecommunication cables with polyolefin insulation and polyolefin sheath - Part 1: General (English PDF)

聚烯烃绝缘聚烯烃护套市内通信电缆第1部分：总则

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 19, 2013

Implementation date

December 2, 2013

Scope

GB/T 13849.1-2013 is the English-translated version of 聚烯烃绝缘聚烯烃护套市内通信电缆第1部分：总则.

GB/T 13849.1-2013 is the general part of the GB/T 13849 series on local telecommunication cables with polyolefin insulation and a polyolefin sheath. For cables with copper conductors, polyolefin insulation and a moisture-barrier polyolefin sheath it fixes the construction, the mechanical, physical and electrical performance requirements, the test methods, the inspection rules and the marking and packaging, and it governs their manufacture, acceptance and use. The cables in its scope carry audio signals and digital signals up to the 2B+D rate of the integrated services digital network; they also carry digital signals at 2 048 kbit/s or analogue signals below 150 kHz, and digital signals above 2 048 kbit/s under certain conditions. Twenty-three clauses run from the conductor, the insulation, the pair groups and the cable core through the colour codes of the insulated cores and of the unit binders, cable end identification, spare and service pairs, the aluminium-polyethylene bonded sheath and the outer protective layer, to anti-termite and flame-retardant constructions, electrical, mechanical, physical, environmental and environmental protection performance, delivery length, test methods, inspection rules and packaging. Six annexes add the Munsell colour designations, a recommended core arrangement and four test methods. Issued on 19 July 2013, it took effect on 2 December 2013.

Document preview — GB/T 13849.1-2013

National Standard of the People's Republic of China

ICS: 29.060.20
Classification: K 13
Replacing: GB/T 13849.1-1993

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope1
2 Normative references1
3 Terms and definitions2
4 Symbols, codes and product designation3
5 Conductor4
6 Insulation4
7 Pair groups (hereinafter called pairs)5
8 Cable core5
9 Colour code of the insulated cores inside a basic unit6
10 Binder yarns (tapes) of basic units and super-units and their colour code6
11 Cable end identification6
12 Spare pairs and service pairs9
13 Aluminium-polyethylene bonded sheath (moisture barrier polyethylene sheath)9
14 Outer protective layer10
15 Anti-termite cable construction11
16 Flame-retardant cable construction11
17 Electrical performance11
18 Mechanical, physical and environmental performance16
19 Environmental protection performance16
20 Delivery length16
21 Test methods17
22 Inspection rules18
23 Marking and packaging21
Annex A (normative) Munsell colour designations of the insulation colours22
Annex B (informative) Recommended structural arrangement of the cable core23
Annex C (normative) Test method for colour migration24
Annex D (normative) Test method for the compression resistance of the insulation25
Annex E (normative) Test method for the peel strength between the aluminium tape and the polyethylene sheath26
Annex F (normative) Bending performance test of the finished cable28

1 Scope

This part of GB/T 13849 sets the construction, the mechanical, physical and electrical performance requirements, the test methods, the inspection rules and the marking and packaging of local telecommunication cables with copper conductors, polyolefin insulation and a moisture-barrier polyolefin sheath.

This part applies to the manufacture, the acceptance and the use of local telecommunication cables with copper conductors, polyolefin insulation and a moisture-barrier polyolefin sheath.

The cables covered by this part can carry audio signals and digital signals at the 2B+D rate of the integrated services digital network and below; they can also carry digital signals at 2 048 kbit/s or analogue signals below 150 kHz, and under certain conditions digital signals above 2 048 kbit/s.

2 Normative references

The following documents are indispensable for the application of this document. For dated references only the edition cited applies; for undated references the latest edition, including all amendments, applies.

The general cable and material documents cited are GB/T 2900.10-2001 Electrotechnical terminology - Cables; GB/T 2951.11-2008, GB/T 2951.12-2008, GB/T 2951.13-2008 and GB/T 2951.14-2008 Common test methods for insulating and sheathing materials of electric and optical cables, Parts 11, 12, 13 and 14; GB/T 2951.41-2008 and GB/T 2951.42-2008, the methods specific to polyethylene and polypropylene compounds; GB/T 2952.1-2008 and GB/T 2952.3-2008 Cable outer protection, Parts 1 and 3; GB/T 3048.9-2007 and GB/T 3048.10-2007 Test methods for electrical properties of electric wires and cables, on the spark test of insulated cores and the spark test of extruded sheaths; GB/T 3953-2009 Round copper wire for electrical purposes; GB/T 6995.2-2008 and GB/T 6995.3-2008 Marking methods for electric wires and cables, Parts 2 and 3; GB/T 7424.2-2008 Optical fibre cables - Part 2: Basic test methods; and GB/T 11327.1-1999 Polyvinyl chloride insulated and polyvinyl chloride sheathed low-frequency communication cables and wires - Part 1: General test and measuring methods.

The other parts of the series are cited as GB/T 13849.2, GB/T 13849.3, GB/T 13849.4 and GB/T 13849.5.

The remaining documents cited are GB/T 15065-2009 Black polyethylene plastics for electric wires and cables; GB/T 17650.2-1998 Determination of gases evolved during combustion of materials from cables - Part 2: Determination of the acidity of gases by measuring pH and conductivity; GB/T 17651-1998 Measurement of smoke density of cables burning under defined conditions; GB/T 18380.12-2008 Tests on electric and optical fibre cables under fire conditions - Part 12: Test for vertical flame propagation for a single insulated wire or cable, 1 kW pre-mixed flame test method; GB/T 19666-2005 General rules for flame-retardant and fire-resistant electric wires and cables; JB/T 8137 (all parts) Delivery drums for electric wires and cables; SJ/T 11363-2006 Requirements for concentration limits for certain hazardous substances in electronic information products; YD/T 723.2-2007 and YD/T 723.3-2007 Metal-plastic composite tapes for communication cables and optical cables, Parts 2 and 3; YD/T 760-1995 Polyolefin insulating compounds for local telecommunication cables; YD/T 839-2000 Filling and flooding compounds for communication cables and optical cables; YD/T 1020-2004 Characteristics of anti-termite sheathing materials for cables and optical cables; and YD/T 1115-2001 Water-blocking materials for communication cables and optical cables.

3 Terms and definitions

The terms and definitions given in GB/T 2900.10-2001 and the following ones apply to this document.

3.1 unit - A cable element formed by stranding 25 pair groups together, used to build a super-unit or a cable core.

3.2 super-unit - A cable element formed by stranding several units or sub-units together, used to build a cable core.

3.3 sub-unit - A cable element formed by stranding together a number of pair groups smaller than the number contained in a basic unit, used to build a cable core.

3.4 foam-skin polyolefin insulation - Insulation with an inner foamed polyolefin layer and an outer solid polyolefin layer, or with solid polyolefin as the inner and the outer layer and foamed polyolefin in between.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 28 pages — is available in the English PDF.

Editions of GB/T 13849.1

Edition	Title	Revision	Status
GB/T 13849.1-2013	Local telecommunication cables with polyolefin insulation and polyolefin sheath - Part 1: General	current edition	Current
GB/T 13849.1-1993	Local telecommunication cables with polyolefin insulation and polyolefin sheath - Part 1: General	previous edition	In force until 2013-12-02

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