GB/T 12528-2008 English PDF (GBT12528-2008)

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GB/T 12528-2008: Rail vehicle cables with rated voltages up to and including 3kV
GB/T  2528‐2008 
GB
ICS 29.060.20
K 13
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Replacing GB 12528.1-1990, GB 12528.11-2003
Rail vehicle cables with rated voltages
up to and including 3kV
ISSUED ON. JUNE 30, 2008
IMPLEMENTED ON. APRIL 1, 2009.
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1  Scope ... 5 
2  Normative references ... 5 
3  Terms and definitions ... 7 
4  Product code, marking and sample ... 8 
5  Operational properties ... 10 
6  Model, name and specification of the product ... 11 
7  Technical requirements ... 13 
8  Test Methods ... 26 
9  Inspection Rules ... 27 
10  Marking and Package ... 29 
Annex A ... 31 
Annex B ... 33 
Annex C ... 36 
Annex D ... 37 
Annex E ... 38 
Foreword
“Rail vehicle cables with rated voltages up to and including 3kV in GB/T 12528” is an
integration of GB 12528.1-1990 and GB 12528.11-2003.
This Standard replaces “Insulated cables (wires) for railway vehicles of rated voltages up
to and including 3kV General” (GB 12528.1-1990) and “Insulated cables (wires) for
railway vehicles of rated voltages up to and including 3kV Amendment 1. Cross-linked
polyolefin insulated cables (wires) for railway vehicles” (GB 12528.11-2003).
The major changes BETWEEN this Standard AND GB 12528.1-1990 and GB
12528.11-2003 are as follows.
— “Insulated cables (wires) for railway vehicles of rated voltages up to and including
3kV General” (GB 12528.1-1990) and “Insulated cables (wires) for railway vehicles
of rated voltages up to and including 3kV Amendment 1. Cross-linked polyolefin
insulated cables (wires) for railway vehicles” (GB 12528.11-2003) are changed into
“Rail vehicle cables with rated voltages up to and including 3kV” in this edition.
— Update and add normative references (The Chapter 2 in GB 12528.1-1990 and GB
12528.11-2003; the Chapter 2 in this edition).
— For insulation and sheathing materials, this edition specifies chlorosulfonated
polyethylene rubber compound or other equivalent synthetic elastomers, ethylene
propylene rubber compound, cross-linked polyolefin compound and polyolefin
compound used for thin-wall cables. Delete the provisions (3.2 in GB12528.1-1990;
and 4.2 in this edition) of natural styrene butadienerubber, polyvinyl chloride,
neoprene, nylon and other compounds in standard GB 12528.1-1990.
— The oil resistance property is divided into three classes, namely Class I, Class II,
and Class III. The application environment polluted by high concentration acids and
bases are not specified. Specify the cable products with Class I and Class II oil
resistance property (3.2.1.5 in GB 12528.1-1990, 3.4 in GB 12528.11-2003 and 4.4
in this edition).
— Specify the cable’s voltage grade in four categories. 500V, 750V, 1.5kV and 3kV.
Delete the 250V grade and 1kV grade (5.4.4.1 in GB12528.1-1990, 3.1 in GB
12528.11-2003 and 5.1 in this edition).
— Adjust the cable’s bending radius (3.5 in GB 12528.11-2003, and 5.4 in this edition).
— Add Category 2 conductor, represented by (C). Delete the provisions for conductor
structure (5.1.1 in GB 12528.1-1990, 5.1.2 in GB 12528.11-2003, and 7.1.2 in this
edition).
— Add the experimental value of direct voltage to the spark test voltage (5.2.3 in GB
12528.1-1990, 5.2.3 in GB 12528.11-2003, and 7.2.4 in this edition).
— The thinnest thickness of thin-wall cable’s insulation has been changed from
90%-0.1mm of nominal thickness value in GB 12528.11-2003 to 75% of nominal
thickness value (Table 2 in GB 12528.11-2003 and Table 11 in this edition).
— The low-smoke zero halogen flame retardant cables shall pass the bunch
combustion experiment, in addition to the single vertical combustion. (5.3 in GB
12528.11-2003 and 7.4 in this edition);
— Insulation resistance has been changed from 1X1013Ω•m in GB 12528.11-2003 to
5X1012Ω•m in this edition.
— Delete the experimental method of tin layer in tinned copper wires in Annex A. Add
abrasion experiment in Annex A (Annex A in GB 12528.1-1990, Annex A in this
edition).
— The maxim current leakage indicator which reflects the cable’s surface resistance
value is consistent with the specified value of EN50264 (Annex D in GB
12528.1-1990; Table 6 in GB 12528.11-2003, and Annex D in this edition).
The Annexes A, B, C, D and E of this Standard are normative.
This Standard was proposed by China Electrical Equipment Industrial Association.
This Standard shall be centralized by National Technical Committee on Wire and Cable of
Standardization of China SAC/TC 213.
Drafting organization of this Standard. Shanghai Electric Cable Research Institute.
The participating drafting organizations of this Standard. Shanghai Nanyang Cable Co.,
Ltd; Jinshan Electric Wire and Cable Ltd., Tianjin; Shanghai Nan Yang Electrical Appliance
Co., Ltd.; Hengyang Hengfei Cable LLC; Haixing Cable (Group) Co., Ltd, Chaohu, Anhui
Province; Shanghai Hanxin, Wires and Cable Co., Ltd; and Huang Shi Chang Da Wires and
Cable Co., Ltd.
Main drafters of this Part. Zhang Xianling, Tan Jinfeng, Zheng Guojun, Zhang Guoping, Li
Chunyang, Ma Yongbiao, Zhao Cuijing, Wang Yingchang, Zhou Xiaowei, and Xin Jimin.
The previous editions of the standard replaced by this Standard are as follows.
— GB12528.1-1990;
— GB12528.11-2003.
Rail vehicle cables with rated voltages
up to and including 3kV
1 Scope
This Standard specifies the type, specification, technical requirement, test method, mark,
and package of the cable used in rail vehicles with rated voltages up to and including 3kV.
This Standard is applicable to cables used in electric units like power distribution system,
control system, signal system etc. It is suitable for rail transit vehicles of rated voltages up
to and including 3kV.
2 Normative references
The articles contained in the following documents have become part of this Standard
when they are quoted herein. For the dated documents so quoted, all the modifications
(excluding corrections) or revisions made thereafter shall not be applicable to this
Standard. For the undated documents so quoted, the latest editions shall be applicable to
this Standard.
GB 252-2000 Light diesel fuels
GB/T 1690-2006 Rubber vulcanized or thermoplastic - Determination of the
effect of liquids (ISO 1817.2005, MOD)
GB/T 2900.10-2001 Electrotechnical vocabulary--Electric cables (idt IEC
60050(461). 1984)
GB/T 2951.1-1997 Common test methods for insulating and sheathing materials of
electric cables Part 1.Methods for general application Section one. Measurement of
thickness and overall dimensions—Tests for determining the mechanical properties (idt
IEC 811-1-1.1993)
GB/T 2951.2-1997 Common test methods for insulating and sheathing materials of
electric cables--Part 1. Methods for general application--Section two. Thermal ageing
methods (idt IEC 811-1-2.1985)
GB/T 2951.4-1997 Common test methods for insulating and sheathing materials of
electric cables Part 1. Methods for general application (idt IEC 81-1-4.1985)
GB/T 2951.5-1997 Common test methods for insulating and sheathing materials of
electric cables--Part 2. Methods specific to elastomeric compounds section
one--Ozone resistance test--Hot set test--Mineral oil immersion test (idt IEC
811-2-1.1986)
GB/T 2951.6-1997 Common test methods for i...