This part specifies the product classification, requirements, test methods, inspection rules and marking, transportation and storage of multi-porous plastic pipes for underground communication, rigid polyvinyl chloride multi-porous integral pipes (hereinafter referred to as "pipes"), which are made of polyvinyl chloride as the main raw material and are extruded. This part is applicable to the pipeline system of outdoor buried communication cables and optical cables. QB/T 2667.1-2004 Multi-porous plastic pipes for underground communication Part 1: Rigid polyvinyl chloride (PVC-U) multi-porous integral pipes QB/T2667.1-2004 Standard download decompression password: www.bzxz.net

1CS83.140.30
Division number: G33
Supervision number: 151322005
Light Industry Standard of the People's Republic of China
QB/T2667.1—2004
Buried multl hole plastics pipes for communicationPart 1: Unplasticsized polyvinyl chloride (PvC-U) multi-hole pipes2004-12-14 Issued by
National Development and Reform Commission of the People's Republic of China on 2005-06-01 implementation
QB/T266 "Porous plastic pipes for buried communication" is divided into the following two parts: Part 1: Polyvinyl chloride (PVC-U) porous pipes Part 2: Polyethylene (PE) porous backing. This part is the first part of QB 2667 "Porous plastic pipes for buried communication". This part was voted by China National Light Industry Federation: QB/T2667.1-2004
This part was issued by the National Technical Committee for Standardization of Plastic Products Sheet Materials Pipe fittings and reading door division according to the technical committee responsible for the main drafting units; Shandong Plastic Industry Control and Measurement Center: Hubei Wenle Xindui Material Technology Co., Ltd., Yanzhou Xiaolong Communication Equipment Co., Ltd., Qitai Xinzhu Plastic Technology Co., Ltd., Zhizhou Mingzhu Plastic Co., Ltd., Jianting Bafang Telecom Co., Ltd. The main drafting units of this part are: Benli, Zhang Yachan, Ye Lan, Zhang Quan, Liu Jiao, Wu Gang. This part is published for the first time.
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1 Scope
Porous integrated plastic pipes for buried communications
QB/T26671-20 4
Part 1: Rigid polyvinyl chloride (PVC-U) porous one-piece pipe technology This part defines the product classification, type requirements, or risk methods, test rules and standards of single-piece plastic pipes (hereinafter referred to as "general materials") made of polyvinyl chloride as the main raw material, and the transportation, storage and management of this part of the pipeline system for communication cables and optical cables. 2 Normative references
The clauses in the following documents become the clauses of this website through the application of this part. It is a referenced document for the period of time, and all subsequent amendments ( The latest revisions do not apply to the wood part, but the parties to the agreement based on this part shall study whether the latest revisions of these documents can be used. For any undated referenced documents, the latest version shall apply to this part. G 2828.1-2003: Counting sample calculation process] Part: Quick acceptance sampling plan for reverse batch inspection (A(:1999,T)
GB.T29181998 Standard environment for state adjustment and testing of plastic test rods (idtTSO291:1097)GR/T 667I2(H
Determination of the tensile strength of thermoplastic pipes (egyIS02505:1994) GB8802-2001 Determination of the Vicat softening temperature of thermoplastic materials and parts (e9VI502507:1995) GB/T8804.2-2003 Determination of tensile properties of thermoplastic pipes Part 2: Polyvinyl chloride (PVC-U), polyvinyl chloride (PVC-C) high impact polyvinyl fluoride (PVC-H) (ISO6259-2:1997, [DTGE/T8S05
Hard beard double material pipe temperature test method (GB/+8805-1988, E V4STM21221981) Material size marking method (GB/T8R06-1988, eVISO3126:1974) GB/T8806
3 Product classification
3.1 New surface structure
Meiduo pipe
Grid porous material
Peak-shaped porous pipe
3.2 Product marking
Wood part number
Hole size × nominal outer diameter Nominal inner thickness Effective number of holes Material
Multi-section structure Flower-shaped porous pipe MD: Grid-shaped porous pipe village is GD: Integral porous pipe is FD), six small tables 1. Table 2. The pore sizes specified in Table 3 are all based on QB/T2667.12004
, with a diameter of 28m, an external diameter of %2, and an internal diameter of 1.%m. The product is M11 Pvt:-I11 2RX2.2/1.8×5 QB-T 26G7.1 20043.3 Schematic diagram of the folded surface of the pipe and its structural dimensions 3. 3. 3.9.1.1 Schematic diagram of the typical flower-shaped porous pipe fracture. 5
Small one is the performance reduction when the machine starts to pay attention to the following: monthly size, one small outside, one small inside
Figure 1 Typical cross-sectional structure of multi-porous pipe according to chemical shape Figure 3.3.1.2 Structural dimensions of hot flower type porous pipe Table 1 Structural dimensions of plum blossom shaped porous pipe
Self-effective number
Four, chaotic
Grid shaped porous pipe
32 (33)
Outside Xu kidney lift
Record small inside
Typical grid general shape multi-f. Sectional structure of material shows the customer sees the reduction of 2.~ rate 2c). a?
Sheep as the degree
Minimum external dimensions!
The material is externally oriented and can be inspected at the three boxes. The starting height is: - minimum multiple order: - minimum year Figure 2 Typical grid-shaped porous pipe cross-section structure diagram HIY KAoNY Ka-
3.3.2.2 The structural dimensions of the grid-shaped porous pipe are shown in Table 2. Table 2 The structural dimensions of the grid-shaped porous pipe
Male, large, child holes
A,, lead
3.3.3 Honeycomb porous pipe
Random small 8
33 (32)
Allowed interpretation
Typical final shape of multi-porous pipe fracture structure (Figure 3a) - Figure 33.3.3.1
QB/T26G7.12004
Unit is the required material resistance to external shrinkage test, starting height, one small: one minimum external thickness, one small internal test Figure 3 Typical high-strength multi-porous material expansion structure Figure 3.3.3. 2 Structural dimensions of honeycomb porous pipes Table 3. Table 8 Structural dimensions of honeycomb porous pipes Effective holes Three, four holes, seven holes Minimum inner thickness For special requirements QB/T2667.12004 Pipe material deviations are shown in Table 4. Standard thickness 2.1-~3.6 4.1 Color Thickness deviation Pipe wall pressure difference 3.6-~4.0 The color of the pipe should be uniform, otherwise it should be white or gray, which can be agreed upon by both parties. 4.2 Appearance
The appearance of the pipe is not allowed to be deformed or twisted. The pipe wall is not allowed to have bubbles, cracks, decomposition lines and obvious impurities. The inside and outside should be smooth and flat: the pipe should be cut flat and aligned with the pipe pile. 4.3 Pipe size and deviation
4.3.1 Length
The length of the pipe is generally 6m, 8m, 10m, and the length is subject to negotiation. The maximum deviation of the length is 0 + 0.4%. 4.3.2 The structural dimensions and deviation of the pipe should comply with the provisions of Table 1, Table 2, Table 3 and Table 4. 4.3.3 The curvature of the pipe should not exceed 1 meter, and no 8-shaped bending is allowed. 4.4 Physical and mechanical properties
The physical and mechanical properties should comply with the specifications of Table 5.
Table 5 Physical and mechanical properties
Tensile strength
Tensile shrinkage
Degradation
Test (0℃)
Time-dependent tensile strength
Friction effect
5 Test method
5.1 Test environment
kN/200mm
Flower-shaped pipe
9/10 Small pipe
Tight pipe
Peak-shaped porous pipe
Test method
Except as specified in the specification, the test specimens shall be tested and conditioned under the conditions of (23 ± 2) according to the specification of GB/T2913-1998 for at least 24h. The test shall be carried out under this condition. 5.2 Appearance inspection
Daily visual inspection: The inside of the pipe can be inspected, and the sample can be cut open for inspection if necessary. 4
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5.3 Dimension measurement
5.3.1 LengthbZxz.net
5.3.2 Structural dimensions and deviations of pipes
5.3.2.1 Dimensions of sub-holes of pipes (B)
QB/T2667.12004
Measure with a vernier caliper with an accuracy of not less than 30.02mm. Take three samples and measure the hole size of each sample on the same surface according to the provisions of GB/18806. The inner diameter of the most arbitrary point of the grid-shaped hole pipe is measured. For the vertical hole pipe, the center of the inner hole is measured. For the peak hole pipe, the center of the inner hole is measured at the vertical line. For the guide rail pipe with an internal guide rail, the guide rail wave sample is measured. The minimum value of the measured value is used to calculate the dimensional deviation. 5.3.2.2 Hole section wall (e, tt) Use the pipe thickness gauge with an accuracy of not less than 0.011um to measure the maximum and minimum outer and inner walls of the pipe cut surface according to the provisions of GB/T8S06 (except for the joints of porous pipes in thermal power plants, multi-porous pipes in standard shapes and multi-porous pipes with selective cancer), and measure the same as 3.3.2.1: For porous pipes with a guide rail on the inner wall, measure the guide rail at the recommended place, and use the measured inner multi-case or minimum thickness deviation to calculate the compensation in stages, 6.3.3 Bending degree According to the provisions of GBT805, 5.4 Physical and mechanical properties 5.4.1 Tensile strength Test according to GB/T8B04.2-2003 standard or test. For plum blossom-shaped porous pipes, take 5 samples in sequence along the outer surface of the mesh (if the number is less than 5, take another pipe to take 5 samples); for honeycomb porous pipes, take 5 samples in sequence along the outer plane of the recycling direction, and ensure that the effective size of the sample is in accordance with the detailed size requirements of GB/T8804.2-2003.
5.4. 2 Longitudinal shrinkage
Heat B/T6671-2001 fixed test.
5.4.3 Vicat softening temperature
I(1H/T88(2-20U1 fixed test.
5.4.4 Key drop impact test
5.4.4.1 Sample preparation
Cut 10 equal sections of length (25) mm.
5.4.4.2 Test equipment||tt| |Ci hammer impact test machine, head diameter is (90-2) mm, hammer weight is 1 kg, impact height is [1a5.4.4.3 Test conditions
Put the sample in 1 position at 0℃. Each test should be completed within 761Us in the standard environment (23±2). 5.4.4.4 Test steps
Put the test piece in 1 position, and make it fall into the position shown in Figure 4. 5
QB/T 2667.1-2094
5.4.4.5 Results
Figure 4: Impact position of the sample in the chain drop test. Check whether each section of the sample has cracks, splits or wrinkles. 5.4.5 External load performance
5.4.5.1 Sample preparation
Take a (200±5) mm pipe section from the three-way node as the sample and test it in a standard environment with a humidity of (3-2) for 24 hours. 5.452 Verification equipment
Can provide a test speed of (5±1) mm/min, and the minimum size of the plate is not less than 2mmb.4. 3. Test steps: Place the pipe between the stop plates of the test equipment, make the pipe parallel to the stop plate, and make the pipe in the direction of A and the direction of the auxiliary plate. The test speed is (5+1\mm/min. When the test volume reaches the initial compression height of the sample (A>), record the compression load at this time: the test result is the value of the test sample. 5.4. 6 Static rate friction temporary
take (1K) ± 10mm pipe on each pipe for inspection, straight (12.5 ± 0.5) mm, length (200 = 5) mm sheath material is HDPE) pipe and eliminate! , then the piece is not certified by the person 1) / slow inspection element has a cable end of the control unit, until the unit just eliminates, measure this called the shooting height (also Figure 5, calculate the value, and use some signature standard friction number, test results take a test increase can be averaged, the calculation formula is as follows: μ = n
or directly use the shooting measurement of the most measured value,
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L one. Pipe K, the unit is millimeter5) mm, length (200 = 5) mm sheath material is HDPE) pipe and eliminate! , of course, with no personnel 1) / certificate of the slow inspection of the cable end of the control unit, the user system just eliminates the movement, the special measurement is called the shooting height (also Figure 5, calculate the value of the bar, and use some signature standard rub number, the test result to take a test increase can be averaged, the calculation formula is as follows: μ = n
or directly use the shooting measurement of the most measured value,
HIY KAoNY Ka-
L 1. Pipe K, the unit is millimeter5) mm, length (200 = 5) mm sheath material is HDPE) pipe and eliminate! , of course, with no personnel 1) / certificate of the slow inspection of the cable end of the control unit, the user system just eliminates the movement, the special measurement is called the shooting height (also Figure 5, calculate the value of the bar, and use some signature standard rub number, the test result to take a test increase can be averaged, the calculation formula is as follows: μ = n
or directly use the shooting measurement of the most measured value,
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L 1. Pipe K, the unit is millimeter
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