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GB/T 9330.1-2008 English PDF (GBT9330.1-2008)

GB/T 9330.1-2008 English PDF (GBT9330.1-2008)

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GB/T 9330.1-2008: Plastic insulated control cables -- Part 1: General requirements

This Part of GB/T 9330 specifies the codes, marking, technical requirements and inspection rules of the extruded insulated and sheathed control cables with the rated voltage U0/U 450/750V. This Part is applicable to the control cables, with the rated AC voltage U0/U 450/750V, that are used in the control and monitoring loops and protective lines.
GB 9330.1-2008
GB
ICS 29.060.20
K 13
NATIONAL STANDARD
OF THE PEOPLE'S REPUBLIC OF CHINA
Replacing GB 9330.1-1998
Plastic insulated control cables -
Part 1. General requirements
ISSUED ON. JUNE 30, 2008
IMPLEMENTED ON. APRIL 01, 2009
Jointly issued by. General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ);
Standardization Administration Committee (SAC) of the
People's Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 5
4 Codes, Representation Methods and Examples of Products ... 7
5 Marking ... 9
6 General Requirements of Cable Structure ... 11
7 Finished Cable ... 16
8 Delivery Length ... 19
9 Inspection Rules ... 19
10 Packing ... 19
Appendix A ... 21
Foreword
GB/T 9330-2008 "Plastic Insulated Control Cables" is divided into 3 parts. - Part 1. General Requirements;
- Part 2. Polyvinyl Chloride Insulated and Sheathed Control Cables;
- Part 3. Cross-linked Polyethylene Insulated Control Cables.
This Part is the Part 1 of GB/T 9330.
This Part shall replace GB 9330.1-1988 "Plastic Insulated Control Cables-Part 1. General Requirements".
The main changes of this Part over GB 9330.1-1988 are as follows.
- Add reference documents of GB/T 19666-2005 and JB/T 8137-1999 (Chapter 2 in this edition);
- Add the symbol code of the aluminium-plastic composite film tape shield (Chapter 4 in this edition);
- Add contents on cable marks (Chapter 4 in this edition);
- Modify the structure types of conductors (Table 1 in 1988 edition; 6.1.2 in this edition); - Add the code of insulating mixture and the requirements on insulation thickness (Table 1 and Table 2 in this edition);
- Thickness requirements of copper tape shield (6.4.1 in this edition) were added; - Add types and requirements of aluminium-plastic composite film tape shield (see 6.4.2 in this edition);
- Delete "the overlap ratio shall not be less than 15%" (8.1.1 in 1988 edition); - Modify thickness of the inner liner in the structure of cable sheath (9.3 in 1988 edition; Table 4 in this edition);
- Add the contents on the diameter of fine wires for armouring (Table 6 in this edition); - Add the code of sheathing mixture and the thickness requirements (Table 7 and Table 8 in this edition);
- Delete the requirements on the average thickness of armoured cable sheath (10.3 in 1988 edition);
- Add the contents on the cross-linked polyethylene insulation resistance (Table 11 in this edition);
- Add Appendix "Calculation Method of the Fictitious Diameters of Cable Structure" (Appendix A in this edition).
Appendix A of this Part is normative.
This Part was proposed by China Electrical Equipment Industry Association. This Part shall be under the jurisdiction of National Technical Committee on Wire and Cables of Standardization Administration of China (SAC/TC 213).
Chief drafting organization of this Part. Shanghai Electric Cable Research Institute. Participating drafting organizations of this Part. Guangzhou Cable Works, Tianjin Suli Cable Group Co., Ltd., Shanghai Hongqi Cable (Group) Co., Ltd., Anhui Hualing Cable Group Co., Ltd., Yangzhou Shuguang Cable Co., Ltd., and Fujian Nanping Sun Cable Co., Ltd. Chief drafting staffs of this Part. Tang Jiazi, Liu Tongping, Han Changwu, Sheng Weiqiu, Hu Guangzheng, Liang Guohua, and Fan Defa.
The previous edition replaced by this Part is.
- GB 9330.1-1988.
Plastic insulated control cables ?€?
Part 1. General requirements
1 Scope
This Part of GB/T 9330 specifies the codes, marking, technical requirements and inspection rules of the extruded insulated and sheathed control cables with the rated voltage U0/U ??? 450/750V.
This Part is applicable to the control cables, with the rated AC voltage U0/U ??? 450/750V, that are used in the control and monitoring loops and protective lines.
2 Normative??References
The following standards contain provisions which, through reference in this Part of GB/T 9330, constitute the provisions of this Part. For dated references, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to this Part are encouraged to research whether the latest editions of these documents are applied or not. For undated references, the latest editions of the normative documents are applicable to this Part.
GB/T 2900.10-2001 "Electrotechnical Vocabulary-Electric Cables" (IEC 60050(461). 1984, IDT)
GB/T 2952.1-1989 "Protective Coverings for Electric Cables; Part 1. General" GB/T 3048.9-2007 "Test Methods for Electrical Properties of Electric Cables and Wires-Part 9. Spark Test of Insulated Cores"
GB/T 3956-1997 "Conductors of Insulated Cables" (idt IEC 60228. 1978)
GB/T 19666-2005 "Flame Retardant and Fire Resistant Wires and Cables General" JB/T 8137-1999 (All the parts) "Delivery Drums for Electric Wires and Cables" 3 Terms??and??Definitions
The following terms and definitions AND those defined in GB/T 2900.10-2001 are applicable to this Part.
3.1
8 Delivery??Length
The cable shall be delivered according to the length agreed by both parties. The length measurement error shall not exceed ??0.5%.
9 Inspection??Rules
9.1 The cables shall not be shipped out of the factory until they pass the inspection of the manufacturer' quality control department. The delivered products shall be accompanied by the quality inspection certificate.
9.2 The products shall be checked for acceptance according to the specified test items. 9.3 The sampling quantity of the delivered lot shall be decided by both parties. It shall be carried out according to the manufacturers' requirements if the user does not require. If the results of sampling items are unqualified, double quantity of samples shall be taken for the re-test on the unqualified items. If the results are still unqualified, 100% inspection shall be carried out.
9.4 When there is dispute over the acceptance between the manufacturer and the user, the arbitration test shall be carried out by the authority accepted by both parties. 10 Packing
10.1 The coiled or reeled cables shall be winded regularly and packed in good order. The cable coils shall comply with those specified in JB/T 8137-1999.
The cable sockets shall be sealed reliably. The cable sockets extruded out of the reel shall be set with protective cover.
10.2 Each coil or reel shall be attached with the label to indicate.
a) Manufacturer's name;
b) Model and specification (unit. mm2);
c) Rated voltage (unit. V);
d) Length (unit. m);
e) Mass (unit. kg);
f) Manufacturing date (year, month);
g) Standard serial number or certification mark;
h) Correct rotation direction of cable coil.
10.3 When casing, the case shell shall be indicated with.
a) Manufacturer's name;
b) Model and specification (unit. mm2);
c) Rated voltage (unit. V);
d) Standard serial number or certification mark;
e) Physical dimension and mass (unit. kg) of the case;
f) Marks of "keep away from moisture" and "no throwing".
For the shield of double-layer metal tapes, ??u equals to two times of the thickness of metal tape (see 6.4.1 and 6.4.2).
For the braided shield with copper wires, ??u equals to 2.5 times of the diameter of the single braided wire (See Table 3).
A.2.5 Fictitious diameters of inner liner (if existed)
For the armoured cables, the fictitious diameter Db of the inner liner shall be calculated by - the corresponding value of diameter that is calculated in A.2.3 or A.2.4 PLUSES 2 times of the specified nominal thickness of inner liner, as the following formula. Db=Dt+2??b or Db=Du+2??b
Where.
??b - the nominal thickness of inner liner (See Table 4).
A.2.6 Fictitious diameters of the armour layer (if any) are in accordance with the following Formula.
Fictitious diameters of the armour layer (if any) are in accordance with the following Formula.
Da=Db+2 ??a
Where.
Da - the fictitious diameter of armour layer;
??a - the nominal thickness of armour layer.
For the armour of double-layer metal tapes, ??a equals to two times of the thickness of metal tape (see Table 5).
For the steel wire armour, ??a equals to the diameter of steel wire (See Table 6). A.3 Rounding of numerical values
For the above-mentioned cases, all the calculated values shall be rounded off. - If the calculated value is less than 50mm, it shall be rounded off to the first proximate decimal.
- If the calculated value is equal to or larger than 50mm, it shall be rounded off to the proximate integer number.
- If, before ro...

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