This standard specifies the product specifications, requirements, test methods, inspection rules and marking, transportation and storage of chlorinated polyethylene (PVC-C) casings (hereinafter referred to as "casings") for buried high-voltage power cables. This standard applies to casings that are made of chlorinated polyvinyl chloride resin as the main raw material, with necessary additives added, and are extruded to protect buried high-voltage power cables. QB/T 2479-2005 Chlorinated polyvinyl chloride (PVC-C) casings for buried high-voltage power cables QB/T2479-2005 Standard download decompression password: www.bzxz.net

It.s 83.140.80
Classification number: G33
Registration number, 164092C05
Light Industry Standard of the People's Republic of China
QB/T2479-2005
Generation QB/T24?9—20MK!
Burled chlorinated polyvinyl chlaride (PVC-C) pipesfor high-tension power cable2005-07-26Promulgated
National Development and Reform Commission of the People's Republic of China2006-01-01Implementation
QB/T 2479-2005
Please note that some contents of this standard may involve special provisions: The developers of this standard shall not bear the patents of this world. This standard is sufficient for QR/2479-2000 high-pressure small and medium-pressure polyethylene VC-C!) casing model: This certificate is limited to the high-pressure electric power market (: () actual use requirements, examination, can be used for other products of the technical support of the deputy director of the big data: B/T2479-2000 is based on the relevant standard number QB/T2479-2000, the main differences are as follows: revision Changed the production model!
Increase, such as, the density of the energy consumption of the figure: the method of the room tube "density" index;
"bad piece heat shrinkage" is released as "bad setting heat treatment force", the index source of the number of consumption into the image; add the original English:
You received the test plan is the ground rule:
You Kai added Appendix A (US lower ambient temperature state building bad degree. Technical standard accurate record optical data attached,
This standard is proposed by the Malaysian Light Industry Federation. This standard will be the national plastic products standardization technical zero Bei will be the plastic notice, pipe fittings in the valve technical installation Committee (SAC/heart 48/SC3) standard collection of China Submarine South China Li Lu Lu Tong Zhi Industry Co., Ltd., Shanghai Hanwu Shizheng Industrial Co., Ltd., Shanshan Huanning Industrial Co., Ltd., Beibao Shuo Pipe Inspection Co., Ltd. participated in the determination, transportation and exploration standard 1 must be people, board did not call, Tang Dianneng, wash squeeze, Zhou Zongniu. This standard is based on the original national light industry yuan development office light industry standard QH2479-2000 super high power outlet Sichuan chemical case natural ethylene PC-C casing. 1 Scope
QB/T24792005
This standard specifies the production, requirements, test methods, inspection and maintenance rules, operation and storage of underground high-pressure polyvinyl chloride (PVC) sheathing for buried high-voltage power cables (hereinafter referred to as "sheathing"): This standard applies to sheathing made of chlorinated polyvinyl chloride (PVC-C) resin as the main raw material, with necessary energy additives added, and after extrusion, to protect buried high-voltage power cables.
2 Normative references
The clauses in the specification become the clauses of the standard through the use of this standard. For any referenced document with an indicated date, its subsequent amendment (excluding errors) or revision shall not be applicable to this standard. However, the latest version of these documents shall not be applicable to this standard. For any referenced document without an indicated date, its latest version shall be applicable to this standard. GB/T140-199 Test method for the resistance of spherical materials to the surface of the steel plate AB/T2828.1-2003 Procedure for inspection of batches by counting - Part 1, Sampling list for batch inspection according to the acceptance quality limit (AQI.) (28501:2999)
GB/T2918-199 Standard conditions and test environment of plastic specimens (idt150291:1997) GB, T6671-2001 Determination of micro-axial shrinkage of thermoplastic elastic pipes (e9v1502505:1994) GT 802 - 2001
Determination of Vicat hardness of thermoplastic pipes and fittings21h, and carry out the test under the same conditions. 5.2 Appearance Check the appearance and illuminate the interior with the same light source. 5.3 Length Measured by low 1 5.4 Dimension measurement 5.4.1 Average outer diameter and limit deviation Measure the half-average outer diameter according to GB/T8806-1988, and calculate the average outer diameter limit deviation. 5.4.2 Wall thickness and limit deviation Measured according to CBS805-1088, and calculated the wall thickness limit deviation. 5.4.3 Socket size Measured according to GE/6806-1988 5.5 Curvature Measured according to G/T305-1988 5.6 Physical and mechanical properties 5.6.1 5.62 Hot compression force of ring section is measured according to GB9647-2003, and the pressure reducer is put into the electric light pressure reducer, and after (80 ± 2), the pressure is pushed down from the end, and the pressure is monitored on the pressure test machine. The force of 3.0 is the external hot pressure training force. The sample should be 2m from the oven to the pressure flow. The average of the two test results is the test result. 5634 The resistance function is measured according to G0/T1410-1989. 5.6.4 Continuous impact test is carried out according to G14152-2001. At least 10 test villages are measured, each test is repeated, and the test temperature is 20+2! Test conditions are compared with Table 4.
192×65
[32 ×8.5
219×.9.5
5.6.5 Longitudinal shrinkage
Table 1 Drop hammer impact test conditions
Drop pile, weight/<
n. 75 + c.01www.bzxz.net
Measured according to the regulations of G.T6671-2004
6 Inspection regulations
.1 The product is qualified after the inspection of the quality inspection department of the industry and is accompanied by a certificate of compliance! Factory. 6.2 Batch
QB/T2479-2035
Down!
2000:0
The same batch*, the same energy and the same process conditions are uniformly produced The same as the production specifications: the number of years of the product under the production of the next increase: the production of the next step, the production period is not yet t, then the report is no production weight. 6.3 Factory inspection || tt || 6.3.1 Factory inspection date is 4.14.64.7 specified in the amortization temperature, the goods condition has been tested to the textile direction of the sound shrinkage rate 6.3.24.1--4.6 according to GHT2838.13 (103 section inspection change, take the positive inspection technology level [. nuclear acceptance belt return
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