This standard specifies the structure, model, requirements, test methods, inspection rules, marking, packaging, transportation and storage of copper core plastic insulated prefabricated branch power cable products with rated voltage of 0.6/1 kV. This standard applies to copper core polyvinyl chloride, polyethylene or cross-linked polyethylene insulated plastic sheathed prefabricated branch power cables with rated voltage of 0.6/1 kV. This standard does not apply to other equipment and parts selected in the prefabricated branch power cable system, such as distribution devices, which should comply with their own technical standards. JG/T 147-2002 Rated voltage 0.6/1 kV copper core plastic insulated prefabricated branch power cable JG/T147-2002 Standard download decompression password: www.bzxz.net

Construction Industry Standard of the People's Republic of China JG/T 147—2002
Rated voltage 0.6/1kV Copper-conductor plastic insulated prefab branchpower cahles with rated voltage 0. 6/1 kV Issued on November 9, 2002
Issued by the Ministry of Construction of the People's Republic of China
Implementation on January 1, 2003
JG/T147—2002
This standard is compiled based on GB/T1.1-2000 <Guidelines for standardization work Part 1: Structure and writing rules of standards> and GB/T1.3-1997 <Guidelines for standardization work Unit 1: Rules for drafting and expression of standards Part 3: Provisions for the writing of product standards>.
The standard refers to the Japanese Electric Wire and Cable Association's JCS No. 376 A (1992) "600V Cable Standard with Branch Lines". Appendix A of this standard is a normative appendix. This standard is issued by the Ministry of Construction's Standardization and Energy Research Institute. This standard is under the jurisdiction of the Ministry of Construction's Building Products and Components Standardization Technical Committee. The responsible drafting units of this standard are: China Building Standard Design Institute, Shanghai Nanyang-Tenglun Electric Co., Ltd., China Shengwu Industrial Co., Ltd., Baosheng Technology Innovation Co., Ltd. The main drafters are: Hong Yutong, Guomin, Shi Hongfan, Yang Shengwu, Cui Xuelin, Li Xuepei, Jiang Peizuo. This standard was first issued in November 2002. A
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Rated voltage 0.6/1kV copper core plastic insulation
Prefabricated branch power cable
IG/T147—2002
This standard specifies the structure, model, requirements, test methods, inspection rules, marking, packaging, transportation and storage of copper core plastic insulation prefabricated branch power cable (hereinafter referred to as prefabricated branch power cable) with rated voltage 0.6/11V. This standard is applicable to copper core polyoxyethylene, polyethylene or cross-linked polyethylene insulated plastic sheathed prefabricated branch power cable with rated voltage 0.6/1kV.
This standard does not apply to other equipment and components selected in the prefabricated branch power cable system, such as power distribution equipment, which should comply with the technical standards of each equipment.
2 Normative references
The clauses in the following documents are incorporated into this standard through reference in this standard. For any dated referenced document, its subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, its latest version applies to this standard. GB/T2900.10 Electrical terminology Wires and cables GB/T2951 General test methods for insulation and sheath materials of electric buildings w.bylm.net GB/T 2952.1 General rules for cable outer sheath
GR/T2952.3 Cable outer sheath General outer expansion layer for non-metallic sheathed cables GB/T3048.6 Test methods for electrical properties of wires and cables Insulation resistance test Voltage-galvanometer method GB/T3048.8 Test methods for electrical properties of wires and cables AC voltage test GR/T3956 Cable conductors
GR6995.1 Identification marks for wires and cables Part 1: General provisions GR6995.3 Identification marks for wires and cables Part 3: Identification marks for wires and cables GB/T9327-1998 Compression and Mechanical connection joint test method GR12706 Copper core, aluminum core plastic insulation power cable with rated voltage of 35kV and below GB/T12666 Wire and cable combustion test method GB/T17650 Test method for gas released when materials taken from cables or optical cables burn GB/T17651 Smoke density determination of cables or optical cables burning under specific conditions GB/T18380 Combustion test of cables under flame conditions JB/T8137-1999 Wire and cable delivery tray 3 Technical coordination definitions
GB/T290C.10 and the following terms and definitions apply to this standard. 3.1 Rated voltage
Rated voltage is the base voltage used for cable design and electrical performance test, expressed as U./, in kV. The rated voltage of this standard is U./U-0.6/1 kV.
JG/T147--2002
U. ——The effective value of the voltage between any phase conductor and the ground (metal shield, metal sheath or surrounding dielectric). []——The effective value of the voltage between any two phase conductors of a multi-core or single-core cable system. 3.2 Definitions of terms in this standard Prefabricated branch power cable refers to a cable with branch cables and their joints that is manufactured on the trunk cable by the manufacturer in accordance with the design requirements. Trunk cable refers to a plastic insulated power cable as the main line. It is a single-core copper plastic insulated power cable with a rated voltage of 0.6/1V. 3.2.1 Friendly line cable refers to a plastic insulated power cable used as a branch line. It is a single-core copper plastic insulated power cable with a rated voltage of 0.6/1kV. 3.2.4 Branch joint Prefabricated connection joint between the main riser and the branch cable. 3.2.5
Paired short-circuit connector
A copper or copper alloy conductor that fastens the conductors in the power branch line together by means of a short-circuit to ensure reliable electrical contact between the conductors.
Lifting hardware
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Lifting equipment installed on the top of the main cable terminal. Models and specifications
4.1 Models and specifications of prefabricated branch power cables, namely FZ -(） -0. 6/1 -()
1) Non-integrated cables are omitted.
4.2 The models of prefabricated branch power cables are shown in Table 1.2
())(
Nominal cross section of branch cable (mm)
Nominal projection area (mm)
Zhihe cable number
Rated voltage
Cable model
Pre-planned branch power cable
FZ-VV-0. 6/1
FZ-ZRVV-0.6/:
FZ-NHVV-D. $/1
FZ-YJV-0.6/1wwW.bzxz.Net
FZ-ZRYJV-0.6/1
FZ-NHYJV-0.6/1
F2-WDZYJV-0.6/1
FZWDNIYJV-OG/L
JG/T147—2002
Rated voltage 0.6/1kV polyethylene insulation polyethylene expansion sheathed branch power cable rated voltage 0.6/kV polyethylene insulation polyethylene sheathed flame retardant top branch power cable rated voltage 0./1kV polyethylene insulation polyethylene smoke sheathed fire retardant color branch power cable rated voltage 0.6/1kV cross-linked polyethylene green Polyethylene sheathed prefabricated branch power cable with rated voltage of 0.6/1V cross-linked ethylene insulation, polyvinyl fluoride sheathed flame retardant prefabricated branch power cable with rated voltage of .6/1kV cross-linked ethylene insulation, polyoxyethylene sheathed fire-resistant prefabricated branch power cable with rated voltage of 0.6/1kV cross-linked polyethylene insulation, polyolefin sheathed low smoke zero halogen prefabricated branch power cable with rated voltage of 0.6/1kV cross-linked polyolefin insulation, polyolefin sheathed low smoke zero halogen prefabricated branch power cable with rated voltage of 0.6/1kV cross-linked polyolefin insulation, polyolefin sheathed low smoke zero halogen prefabricated branch power cable with specifications as shown in Table 2.
Main cable micrometer/mm
Branch line length/mm2
The maximum load of the branch power cable through the main trunk system is 303m. Requirements
5. 1 General requirements
Main cables and branch cables shall comply with the provisions of GB/T3956, GR12706, GB/T12666 and the relevant standards in Section 2 of this standard.
5.7 Conditions of use
5.2.1 Maximum rated temperature of conductors of prefabricated branch power cables: 3
JG/T147—2002
90℃ for cross-linked polyethylene insulation
70℃ for polyvinyl chloride insulation ℃
5.2.2 The maximum temperature of the short circuit (maximum short circuit duration not exceeding 5s) is: XLPE insulation not exceeding 250℃
PVC insulation not exceeding 160℃
5.2.3 The ambient temperature of the PVC insulated prefabricated branch power cable during laying should not be lower than 0℃, and the allowable bending radius is 30 times the outer diameter of the cable. The allowable bending radius of the XLPE insulated prefabricated branch power cable is 30 times the outer diameter of the cable. 5.3 Main cable conductor cross-sectional area
5.3.1 When the prefabricated branch power cable is laid vertically, in order to ensure strength, the nominal cross-sectional area of ​​the conductor of the main cable must not be less than 10mm2. When it is laid horizontally, the nominal cross-sectional area of ​​the main cable can be selected as needed. The model and specifications of the prefabricated branch power cable should be selected according to the specified load and the environmental requirements. 5.3.2
Performance of the prefabricated branch power cable
The performance should meet the requirements of Table 3.
Continuity
Insulation withstand voltage
Thermal test
【Branch joint】
Branch joint flame retardancy
Lifting hardware
Flame retardancy test for flame retardant cables
Fire resistant cable combustion test
Low smoke and windless cable test
Performance requirements
Molded joints should be smooth and neat, and should not have defects such as scratches, pores, bubbles or wires that may damage performance
Wire breakage
A
After removing the flame, it will burn out within 15 seconds
Tensile strength
Endurance withstand voltage
Insulation network
Thermal deformation
2412 Low weight industry non
3.5kV/lmin
Tensile strength
Elongation
Tensile strength
Tensile strength
Elongation
Test piece
Degree of quality
More than % before heating
Before heating 0%
Pregnancy before oil resistance 80%
Pregnancy before oil resistance 60%
Passed the C type test performance requirements specified in GR/T18.380.3 Passed the B type test set evaluation specified in B/T12555.6 Passed the recommended value test method specified in G5/T17650.GB/T17651 Passed the test
CB/T 3048. 8
GB/T 3015. E
See appendix
GE/T 12666 and
d3/r18380
GB/T 3018.8
GE/T 3048. 6
S3/T2951.1
GB/3 2951. 1
GB/1 20S1. 2
GB/T 2951. 1
GB/T 2951. 5
GB/T 2951.4
GR/T 295).6
GD/T 18380. 3
GB/T 12666.R
GB/T 17650
GB/T 17651
JG/T147—2002
5.5 Branch crimping connectors are made of copper or copper alloy, and are easy to press and connect in a "C" shape. After pressing, no cracking or damage to the steel conductor should occur.
5.6 Insulation of branch connectors: The insulation level shall not be lower than the insulation level of the main cable, and the maximum thickness shall not be lower than the sum of the thickness of the insulation and the sheath. 5.7 Lifting fittings: Performance see Table 3.
6 Test methods and inspection rules
6.1 Test classification
6.1.1. Type test (symbol T)
Type test refers to the test carried out on all the technical requirements of any type of cable specified in this standard according to general commercial principles to prove that the cable has good performance and can meet the specified use requirements. The essence of type test is that after these tests are carried out, they do not need to be repeated. If the cable material or design is changed, it will affect the performance of the cable, it must be repeated. 6.1.2 Sampling test (symbol S)
Sampling test refers to the test carried out on the finished cable sample or on the components taken from the finished cable to prove that the product meets the requirements of the standard. 6.1.3 Routine test (symbol R)
Routine test refers to the test carried out by the manufacturer on all finished cables. 6.2 Test methods and inspection rules
Test methods and inspection rules shall be as specified in Table 4. Table 4
Continuity
Insulation resistance
Hot ring test
Branch joint flame retardant test
Lifting hardware
(including lifting hardware mesh)
Molding plastic test
Flame retardant cable flame retardant test
Fire resistant cable combustion test
Low smoke zero halogen cable test
Test method
Test according to the design
GB/T 304S. 8
GB/T 3015. 6 yim.net
See Appendix A
GR/T 13666,GA/T 18380. 3
Tensile tensile strength
Insulation withstand voltage
Insulation resistance
Tensile strength
Elongation
Tensile strength
Elongation
Tensile weakness
Thermal deformation
24h 2 times cable dead weight
GR/T 3048. 8
GH/T 3013. S
GB/T 2951. 1
GB/T 2951. 1
GB/T 2951. 1,GH/T 2951. 2
GB/T 2951. 1,GB/T 2951. 2
GB/T 2951. 1,GB/T 2951. 5
GB/T 2951. 1, GB/T 2951. 5
G3/T 2351. 4
GH/T 2951. S
GB/T 18380. 3 Type C test stock Type B test specified in GB/T12666.6
GB/T 17650, GB/T 17651
Test type
JG/T147—2002
7 Marking, packaging, transportation and storage
7.1 Finished cable marking
The finished cable sheath shall have the manufacturer’s name, product model and rated voltage continuous marking, and the twisted or bundled main cable sheath shall have the phase sequence marking. The marking shall be clear, easy to identify and resistant to abrasion. The cable markings shall comply with the provisions of GB6995.3. When the cable adopts a single-color sheath, the cable sheath surface shall also be printed with a color identification mark. 7.2 Packaging
The cable shall be properly packed and delivered on a cable drum in accordance with the requirements of JB/T8137-1399. The ends of the main cable and branch cable shall be reliably sealed and firmly fixed on the cable drum by appropriate methods. In order to avoid damage during transportation and storage, short sections of cables weighing no more than 80kg are allowed to be packaged in a package. The packaging of export products shall be carried out in accordance with relevant regulations. 7.3
The outer side of the cable drum and the coiled cable shall be labeled with the manufacturer's name and trademark
The model and specification of the main cable and branch cable: length.m,
hand kg
date of manufacture:
symbol indicating the correct rotation direction of the cable drum, and serial number.
Transportation and Storage
During transportation, it is strictly forbidden to drop the cable drum with cables from a height, and it is strictly forbidden to mechanically damage the cables: when lifting, it is strictly forbidden to lift several cables at the same time. On vehicles, ships and other means of transportation, the cable drum must be placed steadily and properly in a safe manner to prevent the environment or new things
The cable should be avoided from being stored in the air, and the cable drum is not allowed to be laid flat. The cable should be stored in a ventilated place without the invasion of harmful gases. V
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A.1 Test equipment and measuring instruments
Appendix A
(Normative record)
Branch joint thermal cycle test method
The test equipment is shown in Figure A. 1, and the capacity must meet the test requirements. A. 1. 1:
JG/T147—2002
The test equipment is powered by a single-phase 220V or two-phase 380V, 50=Hz AC power supply, and the power supply quality should meet the test equipment A.1.2
Requirements.
The accuracy of the current transformer is not less than 0.2 level, and the error of the ammeter does not exceed ±2%.
Thermoelectric pseudo-division FA-2, wire diameter 0.2tmm~0.4mm.A.1.5
A.1.6The digital temperature accuracy is not less than ±3%
A.2 Sample
A.2.1 The sample should be a section of finished prefabricated branch power cable, and the trunk cable should contain two branch joints of the same specification, and the distance between each branch joint should not be less than 2000min. A2.2 The length of the main cable outside the two branch joints on the test specimen shall not exceed 1011m, and the longer part shall be cut off before the test. The shortest of the two branch cables shall be greater than the L value specified in Table A.1, and at least one of them shall be longer than (2000mm1-1). Table A
Nominal line area of ​​branch cable/mml
Power-on or power-off time/min
Minimum distance between branch joint end and current equalization treatment point1/mmboylm.n15
JG/T 147—2002
A.3 Test piece and circuit connection
A.3.1 Make electrical connections as shown in Figure A.1, and the main cable between the two branch joints shall be inserted into the core of the through-core transformer. A.3.2 Cut a 2000mm section from the longer branch cable as the standard conductor, and then keep the same length for the two branch cables. The shortest length should not be less than the L value specified in Table A.1. A.3.3 Pass the standard conductor through the current transformer coil used for measuring current, and connect the two ends to the conductors of the two branch cables respectively. The connection is made into a current equalizer according to the method in Appendix A of GD/Gong 9327.21988. It is allowed to connect the branch joints in the standard, but the newly formed branch joints should be within the scope of this test inspection. A.3.4 When the current transformer needs to be wound two turns or more, the branch cable from the joint to the current equalizer should be used for winding (the length of the sample should be considered first), and the standard conductor cable should be kept horizontal and straight as much as possible. No-current 223 V
Electrical control device:
Voltage transformer:
Through transformer;
Electrical paper to be tested
Equalizer:
Current transformer:
An ammeter.
A.3. The thermocouple probe should penetrate the protective layer and insulation layer of the branch joint to be tested (including newly formed branch joints, excluding equalizers) and the middle section of the conductor cable, and should be in good contact with the conductor without damaging the body. A.3.6 The sample is placed in an air environment with a temperature of 15℃～35℃ that is not affected by ventilation. A.3.7 The sample is laid horizontally in the air, with a distance of more than 30cm from the wall, more than 60cm from the ceiling and the ground, and more than 20cm from other conductors.
A.4 Test steps
A.4.1 Check that the temperature value of each temperature measuring point meets the test environment requirements. A.4.2 Turn on the power supply and adjust the lubricant to make the standard conductor cable rise to the maximum rated temperature of the sample cable conductor plus 5℃~10℃. When the temperature reading is not more than 2℃ within 2h, record the current and determine the ratio as the test current value of the thermal cycle test. A.4.3 Carry out the cycle test according to the power-on and power-off time specified in Table A.1, and perform 125 cycle tests in total. At the end of every 25 power-on cycles, measure and record the temperature rise value of each temperature measuring point. 8
A.5 Test result judgment
When the test results meet the requirements of 5.1 and 5.2 at the same time, they are qualified. A.5.1 At the end of the 25th cycle test, the temperature rise of the branch joint should not be greater than the temperature rise of the standard conductor cable. JG/T 147—2002
A.5.2 Starting from the 26th cycle, the temperature difference between the standard conductor cable and the branch joint shall be recorded and calculated at the end of each 25 cycles. The difference shall be greater than the difference between their average values ​​minus 8°C. Boyan Alliance
JG/T\147-2002
Boyan Alliance
bylnRepublic of China Construction Industry 8BS
Industry Standard
Rated Voltage 0. 6/ 1 kV Copper-plastic Insulated Prefabricated Branch Power Cable
IG/T 147—2002
Published by China Standards Press
No. 6, Hebei Street, Fuxingmenwai, Beijing
Postal code: 100045
Tel: 6852394668517548
China Standards PressRouhuangdao Printing Co., Ltd.Guangdong Printing Co., Ltd.Xinhua BookstoreHuajing Distribution OfficeDistributed by Xinhua Bookstores in various placesEconomic Edition880×12301/16Printing Sheet1Number19,000WordsFirst Edition April 2003First Printing April 2003E7Number1—800
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