This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of 0~10kV polyethylene insulation materials (hereinafter referred to as "insulation materials"). This standard applies to radiation cross-linked insulation materials for wires and cables made of polyethylene resin as the base material and other additives, which are processed by mixing, plasticizing and granulating. Its long-term allowable working temperature is 90℃. QB/T 2462.1-1999 Radiation cross-linked polyolefin plastics for wires and cables Rated voltage 0~10KV polyethylene insulation materials QB/T2462.1-1999 Standard download decompression password: www.bzxz.net

Classification number K15
No. 4244·1999
Light Industry Standard of the People's Republic of China
QB/T 2462.1-99
Radiation cross-linked polyolefin plastics with rated voltage 0~10kV polyethylene insulation materials for wires and cables
Published on October 14, 1999
Published by the State Bureau of Light Industry
Implemented on March 1, 2000
QB/T2462.199
This standard is based on G-12706 frequency-rated voltage 35kV and below core-adjustable, core-spectrum plastic must-insulate power cables &This standard is formulated based on the 1*3%V extruded insulated power cable and its accessories stipulated by the International Electrical and Electronics Commission IEC60502 (1997) and the actual production situation of my country's electrical insulation industry. It includes black irradiated cross-linked polypropylene insulation material (JEYJ-X) for Class 10kV air-type cables and irradiated cross-linked polypropylene insulation material (FYJ-X) for 0.10kV cables. The standard also makes specific provisions on the appearance and physical and chemical properties of the above materials.
This standard is managed by the State Bureau of Light Industry. This standard is sponsored by the National Plastic Products Standardization Center. This standard was drafted by the Shanghai Institute of Electrical and Electronics, and the Institute of Applied Chemistry of the Chinese Academy of Sciences. The main drafters of this standard are: Liu Fangsheng, Huiyi, Deng Qiansheng, and Zhou Gujian. koN Kkca
1 Model
Light Industry Standard of the People's Republic of China
Ethylene insulation material with irradiation cross-linking olefin plastic rated voltage 0-~10kV for wires and cables
QB/T2462.1-99
This standard specifies the technical requirements, test methods, inspection form, marking, packaging, shipping box and storage of 0~[V polyethylene insulation material (hereinafter referred to as "insulating material\). The standard is suitable for ethylene resin as the base material and adding its packaging additives, which is processed by refining, plasticizing and granulating. The long-term working temperature is as follows. 2 Reference standards
The following standards contain the following provisions: The provisions of this standard are not included in this standard. The versions shown at the time of publication of this standard are valid. The production department will revise the standard. The service party using the standard should consider using the most appropriate version of the following standards.||t t||Month T[01-92 Plastic tensile test method G1-8 National insulation material power frequency electrical wave test method GB1409-88
Solid insulation material at power frequency, audio frequency, high frequency buckle dielectric coefficient and dielectric loss tangent test method GB1410-1997 National electrical insulation material insulation day, body electromechanical coefficient and electrolubricity coefficient test method GB2953.7-1997 Cable General test methods for insulation and sheathing materials Part 3: Test methods specific to vinyl chloride mixtures Part 1: Heavy test
Thermal stability test
(B/T2951.18-1994 Test method for physical properties of electric relays Thermal elongation test Water absorption test (grass method)
GB/T7951.29-1994 Test method for physical properties of electric wires and cables Plastics chemical humidity test method
GB S470--85
G9352--88
Preparation of thermoplastic compression test specimens
GB14049--93 Rated voltage 10kV, 35kV Chaobao insulated cable 3 Classification and code
3.1 Classificationbzxz.net
Insulation materials can be divided into two categories: -10kV air-cooled heat-resistant cross-linked deep ethylene insulation and 0~[0kV frequency-controlled cross-linked polyethylene insulation.
3.2 Code
-Overhead
National Light Industry Bureau 1999-10-14 approved Standard 2000~03-01 irradiated cross-linked material cross-linked polyethylene insulation DB/T2462.1-99 Applicable insulation values ​​(1kV and below are indicated as [0, etc.) Example: Black irradiated cross-linked polyethylene insulation for 10kV and below overhead insulation can be indicated as "IFYJ-[0". Technical requirements 4.1.1 Black insulation material for electrical cables is in the form of round or window-shaped particles. Its overall size is 3mm~4mm, the particle size and color should be marked, and there should be no softness. 4.1.2 The electrical insulation is round or oblate particles of natural color or gray (for product requirements), with an external size of 3mm~4mm, and the particle size and color should be uniform, without impurities. 4.2 The electrical properties of the insulation material after testing will be within the limits of the specification. Table
Tensile strength
Linbei Lake Performance
Body electrical rate
All items are supported by the tangent
Medium armor
:5(Hz20)
Delay 2nnt
0.2MPz.15m
Air short heat old flower
135,1681||tt ||T!
142 days of standing test, 42 days of testing, 21 days of sensitivity
Test method
5.1 Appearance
Re-elongation rate
Cold water long-term deformation
Hanging method
New Fan elongation exchange chemical inspection
New crack length standardization rate
Tensile curvature change rate
Sensitivity Check with a ruler under natural light. 5.2 Preparation of test specimens
Black product photos
Crosslinking rate of thread
2× 10*
JFYJ-1
Fy2-10
The test piece of cross-linked material is prepared by the same molding method: temperature [40℃~180℃, time 1Smin, axial pressing pressure should be greater than 15MPa, and the test should meet the requirements of each test item of the test method. -rkSKa
5.3 Physical and mechanical properties
5.3.1 Tensile strength and elongation at break are determined according to GB/T1040. Or the standard is measured, the test piece is again (1.0-0.1) mm, and the tensile strength is (250I0.) mm/mm.
5. 3. 2 Low humidity at night
Tested according to GB/5470: the thickness of the test piece is (1.6=0.1) mm, and the total number of test pieces is 30. The test pieces are not more than 15 pieces,
5.3.3 Air box heat aging
I GB/T2951.7 test. The test and tensile speed are the same as 5.3.1, and the valid test pieces are not less than 5 pieces, and the arithmetic average is calculated.
5.3.4 Heat aging
Tested according to GB/T2951.18. The test is L load, and the thickness is (1.0±0.1) mm. 5. 3. 5.3.1 Test piece size and pulling speed are measured according to GB:4049. 5.4 Electrical properties 5.4.1 Volume yield rate 5.4.2 Test piece thickness is (1.0-0.1) mm, test voltage is 1 kV 5.4.3 Dielectric loss tangent and dielectric band number are measured according to GB1409. Test piece thickness is (10±01) mm. 6 Inspection rules 6.1 Test piece size and pulling speed are measured according to GB:4049. 5.4.1 Volume yield rate 5.4.2 Test piece thickness is (1.0-0.1) mm, test voltage is 1 kV 5.4.2 Dielectric strength 5.4.3 Test piece thickness is (1.0-0.1) mm, test voltage is 1 kV 5.4.3 Dielectric loss tangent and dielectric band number are measured according to GB1409. Test piece thickness is (10±01) mm. 6 Inspection rules 6.1 Test piece size 6.1.1 According to the composition, each batch of products produced by the same equipment, process and raw materials shall not exceed 2 batches. When the number of samples is not 201, the whole batch is a batch. 6.1.2 The sample trays for the test should be taken from any three bags in any batch to form the inspection samples. 6.2. Inspection and supervision classification
6. 2.1 Factory inspection
When the production conditions remain unchanged or the conditions for continuous production are met, the batch of products should be inspected once. The inspection items include 1.2, 4, 5, 6.7.8 in Table 1.
6.22 Quality inspection
Under certain circumstances, type inspection should be carried out at the same time. ) When the raw material supply formula and process data are changed: b
When the factory resumes production after production,
When the equipment is modified:
When the quality inspection department conducts enforcement inspection: the factory shall clarify.
Type inspection includes all items in the technical requirements. 63 Judgment rules
QB/T 2462. 199
3.1 Factory inspection: In the factory inspection, if one of the items is unqualified, a second sample can be conducted. If one item is still unqualified after the test, the batch of products should be judged as unqualified. 63.2 Type inspection. In type inspection, except for the first random inspection of thermal test items in a month, other items shall be tested once a day. If one item fails, the batch of products shall be deemed to be absolutely unqualified. 7 Marking, packaging, transportation and storage
7.1 Marking
The following contents shall be clearly stated on the product packaging.
a) Product name (and product code
Product color:
Registered trademark:
Product standard number
Manufacturer name and address:
Net weight:
Production date or product number;
Rainproof or other packaging inspection marks are required. 72 Other packaging
Packing material: Polypropylene woven bag for outer packaging, polyethylene thin bag for inner bag or polypropylene woven/leather bag for inner bag 7.2.1
(Polyethylene) bag for goods,
7.2.2 The weight of the bag should also meet the standard requirements for unpacking. 7.2.3 The weight of the package should be (25±0.2) k. Or the buyer and the seller can negotiate to use other packaging methods. 3 Before and during transportation, the insulation materials should be kept intact and not broken or pressed. They should not be exposed to the sun, rain or water. The insulation materials should be stored in a clean, dry and ventilated warehouse with a storage temperature of <35°C and a storage period of 12 months. They should not be stored together with other chemicals.
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