title>GB 12528.1-1990 Cables (wires) for railway rolling stock with AC rated voltage 3 kV and below General provisions - GB 12528.1-1990 - Chinese standardNet - bzxz.net
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GB 12528.1-1990 Cables (wires) for railway rolling stock with AC rated voltage 3 kV and below General provisions
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Standard ID:
GB 12528.1-1990
Standard Name: Cables (wires) for railway rolling stock with AC rated voltage 3 kV and below General provisions
This standard specifies the product classification, general technical requirements and test methods, marking and packaging of cables (wires) for railway rolling stock with AC rated voltage 3kV and below. This standard applies to various types of insulated cables (wires) with AC rated voltage 3kV and below for railway rolling stock. The technical requirements for various types of cables (wires) are specified in subsequent standards such as GB12528.2 and GB12528.3. GB 12528.1-1990 Cables (wires) for railway rolling stock with AC rated voltage 3 kV and below General provisions GB12528.1-1990 Standard download and decompression password: www.bzxz.net
Some standard content:
National Standards of the People's Republic of China Cables (wires) for railway vehicles with AC rated voltage 3kV and below General Provisions Insulated cables (wires) for railwayvehicles of rated voltages up to and including 3 kvGeneral 1 Subject content and scope of application GB12528.1-90 This standard specifies the product classification of cables (wires) for railway rolling stock with AC rated voltage 3kV and below, general Technical requirements and test methods, marking, packaging. This standard applies to various types of insulated cables (wires) with AC rated voltage 3kV and below for railway rolling stock. The technical requirements for various types of cables (wires) are specified in subsequent standards such as GB12528.2 and GB12528.3. 2 Reference standards 2.1 This standard cites the following standards: Electrical terminology wires and cables GB2900.10# GB2951 Test methods for mechanical physical properties of wires and cables GB3048|| tt | Wire and cable delivery tray Bare wire test method GB4909 GB4910 GB6995 Tinned round copper wire||tt ||Methods for identification marks of wires and cables GB12666 Burning test methods for wires and cables 2.2 When other standards must be quoted, they should be specified in subsequent sections. 3 Terminology, code 3.1 Terminology 3.1.1 This standard adopts the terminology specified in GB2900.10. 3.1.2 AC rated voltage AC rated voltage is the reference voltage for cable design and electrical testing, expressed in U, and the unit is V. U. It is the effective value of the voltage between any insulated conductor and "ground" (surrounding medium, metal shielding or metal casing, etc.). When the cable is used in an AC system, the rated voltage of the cable should be at least equal to the nominal voltage of the system to ground. When used in DC systems, the nominal voltage to ground of the system should not be greater than the cable 1.5 times the rated voltage. 3.2 Code number and product representation method 3.2.1 Code number 3.2.1.1, series code 3.2.1.2 Conductor code Copper conductor 3.2. 1.3 Insulation code ethylene propylene rubber DC omitted E chlorosulfonated polyethylene natural styrene-butadiene rubber|| tt||polyvinyl chloride cross-linked polyethylene sheath code 3.2.1.4 V chlorosulfonated polyethylene||tt ||Fluorine rubber Nylon N F 3.2.1.5 Oil resistance code number H x YJ H Installed in a location free from mineral oil and fuel oil contamination. Installed in a location contaminated by mineral oil but not fuel oil. Section 3.2.1.6 Heat resistance characteristic code 70℃ 100℃ Omitted -100 3.2.2 Product representation Method 3 2 3.2.2.1 The product is represented by the model, specification and this standard number, and the composition is as shown in the figure. ■/口 口 口 口 门 口 this standard number color||tt ||Code code for conductor soft or extra soft Section Voltage level Oil resistance code code Series code 3.2.2.2 Oil resistance properties use "/× "express. "×" is the code for oil resistance properties. 3.2.2.3 When the same type of conductor is used with different specifications, if necessary, the soft conductor is represented by (A) and the extra soft conductor is represented by (B), which are marked after the cross section. 3.2.2.4 The color of the cable (wire), if necessary, should be indicated after the conductor characteristics. 3.2.2.5 Example GB12528.1—90 a. AC rated voltage 1.5kV, conductor is soft conductor, 4mm2, operating temperature 70C, mineral oil resistant, natural butyl styrene insulated wire, blue , expressed as: DCXF/215004(A) Blue GB12528.2--90 AC rated voltage 3kV, conductor is a special soft conductor, 95mm2, operating temperature 100C. Resistant to mineral oil and fuel oil, ethylene propylene rubber b . Insulated chlorosulfonated polyethylene sheathed cable, expressed as: DCEH/2-100 4 material 4.1 conductor 300095(B)||tt ||GB12528.4-90 The copper conductor should be soft round copper wire in compliance with GB2953, or tinned soft round copper wire in GB4910. 4.2 The insulation and sheath materials should ensure that the insulation and sheath of the finished cable meet the specified requirements. 5 Technical requirements 5.1 Conductor 5.1.1 Conductor should comply with the regulations of GB3956. The conductor structure is shown in Table 1. 5.1.2 The single copper wire in the conductor is allowed to be tinned, and the tinned layer should be continuous and uniform. 5.1.3 The surface of the conductor should be smooth, free of oil stains, burrs, sharp edges, and raised or broken single wires that damage the insulation. Table 1 Technical requirements for conductors Nominal cutting area mm2 0.12 0.3 0.5 0.75 1 1.5 2.5 4 6 10 Type A B| |tt||A B A B A B A B||tt ||B A B A B Conductor structure Number of wires/single wire nominal diameter, mm|| tt||7/0.15 30/0.07 16/0.15 77/0.07 16/0.20 28/0.15||tt| |24/0.20 42/0.15 32/0.20 56/0.15 30/0.25 85/0.15 50 /0.25 140/0.15 56/0.30 228/0.15 84/0.30 189/0.20 80/0.40 324/0.20 Conductor resistance at 20℃, 0/km not greater than without tin plating 150 174| |tt||69.2 68.0 39.0 39.0 26.0 26.0 19.5 19.5||tt ||13.3 13.3 7.98 7.98 4.95 4.95 3.30 3.30 1.91 1.91 Tinned 163 183 71.2 71.2 40.1 40.1 26.7 26.7 20.0 20.0 13.7 13.7 8.21 8.21|| tt||5.09 5.09 3.39 3.39 1.95 1.95 recipe section mm 16 25 35 50 70 95 120 150 185 240 300| |tt|| kind A B A B A B A||tt ||B A B A B A B A B A B A B A B GB12528.1—90||tt ||结表1bzxZ.net 简体结果 根数/单线確称diameter,mm 126/0.40 513/0.20 196/0.40 783/0.20 276/0.40 1107/0.20 396/0.40 702/0.30 360/0.50|| tt||999/0.30 475/0.50 1332/0.30 608/0.50 1702/0.30 756/0.50||tt| |2109/0.30 925/0.50 1443/0.40 1221/0.50 1891/0.40 1525/0.50 2379 /0.40 20℃时密体resistance,2/km 不这个 不气锡 1,.21 1.21||tt| |0.780 0.780 0.554 0.554 0.386 0.386 0.272 0.272 0.206 0.206 0.161 0.161 0.129 0.129 0.106 0.106 0.0801|| tt||0.0801 0.0641 0.0641 注:①单线根数手机可以表列数数,单线校称包装按线称分利及核根数数定。 ② According to the two sides电视手机手机可以可电体手技。 所锡 1.24 1.24 0.795 0.795 0.565 0.565 0.393 0.393 0.277 0.277 0.210 0.210 0.164 0.164 0.132| |tt||0.132 0.108 0.108 0.0817 0.0817 0.0654 0.0654 5.1.4包面皮电影的电体的电视体可不电行,则应在电体外面包覆的发在电体体的电影的电影的电影。5.2 Insulation 5.2.1 Insulation合电影电体上使合名力剧离而者这些电视连体、电体或plating tin layer。Insulating surface 应平整,色泽共。 5.2.2 The thickness of the insulation thickness shall not be less than the specified standard value. Less than 90% of the standard value and 0.1mm。 5.2.3 Insulation wire 芯应经受GB3048 .9 火花电话电影电影,可以下载电影。火花电话电影灯灯如表2。 表2火花电话电视 火花确称工作。 mm||tt ||0.25 0.25<8≤0.5 0.5<≤1.0 1.0<≤1.5 电视电视(电视值) kv|| tt||3 4 6 10 电影梦称安全8 mm 1.5<2.0||tt| |2.0<≤2.5 2.5<8 电视电视(设计值) kv 15 20 25|| tt||GB12528.1—90 5.2.4有护套cable(电线)insulation的非电影电影应表表3的实施。把套和insulationonceextrudedout通过cable,testing time应将护套与电影电影后时间,如这是电影,最作用单分包电视的线芯作试样。表3有护套通了(电线)电视的非电影电影通过序号 1||tt| |1.1 1.2 1.2.1 1.2.2 2 2.1 2.2 3|| tt||3.1 3.1.1 3.1.2 3.2 3.3 4 4.1 4.1 .1. |tt||primitive property:报张开动 断裂伸长率 水水玻箱治疗油法 治疗者:时间 时间 test results :时拉开动性性环 断裂伸长率 断裂伸长率性总率 耐奥辈性时 test condition:臭辂自性 时间 test results low temperature 卷行正视 试样: 未方法 经时间玻箱治疗方法 Temperature 时间 test condition:temperature test results low temperature temperature test 试样 未电影||tt| |经水水清箱消水方法 消水电视:Temperature 时间 Test condition:Temperature test result:断裂伸长率 水|| tt||minimum minimum minimum minimum minimum minimum units MPa||tt| |% ℃ h % % % % h c h °C 非电视电影应电影表4的设计。 cable length long-term allowable working temperature 70℃ 5 250 100±2 168|| tt||20 200 30 0.025~0.030 3 无裂知 100±2 168 25±2 无裂知 100±2 168 —25±2 20 100℃ 5 250 120±2 240 -20 200 40||tt ||0.025~0.030 3 No cracks 120±2 240 25±2 No cracks 120± 2 240 -25±2 20 serial number 1 1.1 1.2||tt| |1.2.1 1.2.2 2 2.1 2.2 3 3.1 3.2|| tt||4 4.1 4.2 5 5.1 5.1.1 5.1.2 GB12528 .1—90 Table 4 Non-electrical performance requirements for insulation (unsheathed wire and cable) and sheath units Test Tensile strength and elongation at break||tt ||Original properties: Tensile strength Elongation at break Air oven aging test Aging conditions: Temperature Time Test results: Resistance Tensile strength change rate Elongation at break Change rate of elongation at break Mineral oil immersion test Test conditions: Test oil Oil Temperature Time Test results: tensile strength change rate change rate of elongation at break volume change rate fuel oil immersion test|| tt||Test conditions: Test oil Oil temperature Time Test results: tensile strength change rate change rate of elongation at break||tt| |Volume change rate Ozone resistance test Test conditions: ozone concentration Time Test results High temperature pressure test Sample : Untreated Treated with mineral oil Processing conditions Examination Minimum Min Maximum| |tt||minimum max max max max max max max||tt ||MPa % h % % % ℃ h % % % % h Cable long-term allowable operating temperature 70℃ 10|| tt||250 100 168 —20 200 30 100 70||tt ||-30 -40 70 168 30 —40 +20 See appendix B See Appendix B 0.025~0.030 3 No cracks 100℃ 10 250| |tt||120 240 20 200 -40 100 70 -30| |tt||-40 +20 70 168 -30 -40 +20||tt| |0.025~0.030 3 No cracks The oil type, oil temperature and oil immersion time are the same as 2.1, and the oil surface is exposed at both ends during oil immersion Serial number|| tt||5.1.3 5.2 5.3 6 6.1 6.1.1 6.1.2||tt| |6.1.3 6.2 6.3 7 7.1 7.1.1 7.1.2 7.1 .3 7.2 7.3 treated by soaking in fuel oil processing conditions test conditions: temperature time||tt| |Test Apply pressure on the blade) Test results: Deformation rate Low temperature winding test Sample: Untreated||tt| |Thermal aging treatment in air oven Processing conditions Treatment soaked in fuel oil Processing conditions Test conditions: temperature Test results||tt ||Low temperature tensile test Sample: Untreated After heat aging treatment in air oven Processing conditions Treated by soaking in fuel oil| |tt||Processing conditions Test conditions: temperature Test results: elongation at break Examination GB12528.1—90 Continued table 4 Max Min Unit C h N % ℃| | tt | |70 ℃ | tt | | 50 | | tt | Exposed oil surface —25±2 No cracks —25±2 No cracks Same as 1.2.1 The oil type, oil temperature and oil immersion time are the same as 3.1. When immersing in oil, the oil surface is exposed at both ends —25±2 20 —25±2 20 5.3.1 The sheath that is not extruded once should be tightly packed on the insulated core, but it should be easy to peel off without damaging the insulator. The surface of the sheath should be smooth and uniform in color. 5.3.2 The average thickness of the sheath should not be less than the specified nominal value. If there is no provision for the thinnest point, the thickness of the thinnest point should not be less than 85%-0.1mm of the nominal value. 5.3.3 The non-electrical properties of the sheath should comply with the requirements in Table 4. For cables whose sheath and insulation are extruded at one time, the test should be carried out after the sheath and insulation are separated. If it is impossible to separate, the core of the single extruded sheath is allowed to be used as the sample. 5.4 Finished cable GB12528.1-90 5.4.1 The outer diameter of the finished cable shall comply with the provisions of each subsequent standard. For circular cables, the difference between the maximum outer diameter and the minimum outer diameter measured on the same cross-section (f value) should not exceed 15% of the specified upper limit of the average outer diameter. 5.4.2 For finished cables whose conductors are tinned copper wires, the tinned copper wires shall withstand the tin plating test specified in Appendix A of this standard. 5.4.3 For cables whose sheath and insulation are extruded at one time, each turn or coil of finished cable shall undergo a water immersion voltage test or a power frequency spark test. The power frequency spark test voltage shall be in accordance with GB3048.9. 5.4.4 Electrical properties of finished cables 5.4.4.1 The electrical properties of finished cables shall comply with the provisions of Table 5. Table 5 Electrical performance requirements of finished cables Serial number 1 1.1 2 2.1 2.1.1||tt| |2.1.2 2.1.3 2.2 2.3 3 3.1 3.1.1 3.1 .2 3.2 Conductor resistance test Test results Finished cable voltage test Sample Unprocessed Sample length||tt ||Treated by soaking in fuel oil Sample length Processing conditions After bending Sample length Test Test conditions : Immersion time Water temperature Test voltage (AC) Voltage application time Test results Finished cable breakdown test Test Sample Untreated Treated by soaking in fuel oil Treatment conditions Test conditions: sample length flooding time water temperature Boost speed test minimum minimum minimum minimum minimum minimum unit m h ℃ kv min m h|| tt||℃ v/s 250v 10 3 cable rated voltage 750V 1.5 kv comply with the provisions of Table 1 of this standard 10 3 10 3 3kv 10| | tt | ||20±5 1.5 15 No breakdown 24 20±5 2 15 No breakdown 24 20±5 6 15 No breakdown 24| |tt||20±5 12 15 No breakdown The oil type, oil temperature and oil immersion time are the same as Table 4 No. 3.1. The end is exposed to the oil surface 1 24 20±5 50 1 24 20±5 100 1 24 20±5 150 1 24 20 ±5 250 Serial number 3.3 4 4.1 4.1.1 4.1.2|| tt||5 5.1 5.2 6 6.1 6.2 5.4.4.2 Test|| tt||Test results: breakdown voltage Finished cable surface leakage and discharge test Sample Untreated Treated by soaking in fuel oil Processing conditions: Test conditions: soaking time water temperature leakage current test voltage (AC) boost speed test results, leakage current | |tt||Flashover voltage Finished cable moisture resistance test Test conditions: sample length Aqueous solution Aqueous solution temperature Time||tt ||GB12528.1—90 Continued Table 5 Unit Minimum Minimum Maximum Minimum Voltage (DC) test results applied between the sample and the aqueous solution Insulation resistance test of the finished cable insulated core Test conditions: sample length Water temperature Time without water||tt ||Test voltage (DC) Test results; minimum insulation resistivity of the insulation layer insulation resistance of the insulated core minimum minimum kv||tt ||250V 4 cable rated voltage 750V 6 1.5kv 16 3kv|| tt | V/s mA kv m ℃ h V m ℃ h 0.m a. The insulation resistivity can be converted from the measured insulation resistance according to the following formula: 2 yuan LR AV D where: Pv v insulated wire core Insulation resistivity, m; —sample length, m; R—measured insulation resistance of the insulated wire core, Q; D—sample outer diameter, mm; ||tt ||d——Inner diameter of specimen, mm. ina 20±5 2 100 10 5 60±5||tt| |240 330 No breakdown 4 20±5 2 100 4|| tt||20±5 100 See Appendix D 10 5 10 5 incl. Sodium chloride 10g/L aqueous solution 60±5 240 1000 No breakdown 60±5 240 1800 No breakdown 4 20±5 2 100 10||tt| |5 60±5 240 3600 No breakdown 5 20±5 1 300~500 1015 1Same, both ends are exposed when oiling 1 24 20±5 50 1 24|| tt||20±5 100 1 24 20±5 150 1 24 20±5 250 Serial number 3.3 4 4.1 4.1.1||tt| |4.1.2 5 5.1 5.2 6 6.1 6.2 5.4.4.2|| tt||Test Test results: breakdown voltage Finished cable surface leakage and discharge test Sample Untreated Immersed in fuel oil Processing Processing conditions: Test conditions: soaking time water temperature leakage current test voltage (AC) boost speed Test results, leakage current flashover voltage moisture resistance test of finished cable test conditions: sample length aqueous solution aqueous solution temperature||tt ||Time GB12528.1—90 Continued Table 5 Unit Minimum Minimum Maximum Minimum Voltage (DC) test results applied between the sample and the aqueous solution Insulation resistance test of the finished cable insulated core Test conditions: sample length Water temperature Time without water Test voltage (DC) Test results; Minimum insulation resistivity of the insulation layer Minimum insulation resistivity of the insulated core Minimum Minimum||tt ||kv 250V 4 cable rated voltage 750V 6 1.5kv 16|| tt | kv V/s mA kv m ℃ h V m ℃ h 0.m a. The insulation resistivity can be converted from the measured insulation resistance according to the following formula: 2 yuan LR AV D where: Pv v insulated wire core Insulation resistivity, m; —sample length, m; R—measured insulation resistance of the insulated wire core, Q; D—sample outer diameter, mm; ||tt ||d——Inner diameter of specimen, mm. ina 20±5 2 100 10 5 60±5||tt| |240 330 No breakdown 4 20±5 2 100 4|| tt||20±5 100 See Appendix D 10 5 10 5 incl. Sodium chloride 10g/L aqueous solution 60±5 240 1000 No breakdown 60±5 240 1800 No breakdown 4 20±5 2 100 10||tt| |5 60±5 240 3600 No breakdown 5 20±5 1 300~500 1015 1Same, both ends are exposed when oiling 1 24 20±5 50 1 24|| tt||20±5 100 1 24 20±5 150 1 24 20±5 250 Serial number 3.3 4 4.1 4.1.1||tt| |4.1.2 5 5.1 5.2 6 6.1 6.2 5.4.4.2|| tt||Test Test results: breakdown voltage Finished cable surface leakage and discharge test Sample Untreated Immersed in fuel oil Processing Processing conditions: Test conditions: soaking time water temperature leakage current test voltage (AC) boost speed Test results, leakage current flashover voltage moisture resistance test of finished cable test conditions: sample length aqueous solution aqueous solution temperature||tt ||Time GB12528.1—90 Continued Table 5 Unit Minimum Minimum Maximum Minimum Voltage (DC) test results applied between the sample and the aqueous solution Insulation resistance test of the finished cable insulated core Test conditions: sample length Water temperature Time without water Test voltage (DC) Test result; Minimum insulation resistivity of the insulation layer Minimum insulation resistivity of the insulated core Minimum Minimum||tt ||kv 250V 4 cable rated voltage 750V 6 1.5kv 16|| tt | kv V/s mA kv m ℃ h V m ℃ h 0.m a. The insulation resistivity can be converted from the measured insulation resistance according to the following formula: 2 yuan LR AV D where: Pv v insulated wire core Insulation resistivity, m; —sample length, m; R—measured insulation resistance of the insulated wire core, Q; D—sample outer diameter, mm; ||tt ||d——Inner diameter of specimen, mm. ina 20±5 2 100 10 5 60±5||tt| |240 330 No breakdown 4 20±5 2 100 4|| tt||20±5 100 See Appendix D 10 5 10 5 incl. Sodium chloride 10g/L aqueous solution 60±5 240 1000 No breakdown 60±5 240 1800 No breakdown 4 20±5 2 100 10||tt| |5 60±5 240 3600 No breakdown 5 20±5 1 300~500 1015 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.