T/GZHG 017-2020 Active Group standards

T/GZHG 017-2020 Communication with phosphorus-based gypsum to enhance polyvinyl chloride porous and multi-angular tube

Publish Date: 2020-10-13 Implement Date: 2020-10-13 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GZHG 017-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Communication equipment

ICS Name: Plastic Composite

Publish Date: 2020-10-13

Implement Date: 2020-10-13

Scope

Main Technical Content: 5. Technical Requirements 5.1 Color: The color of the pipe is generally uncolored, or determined by mutual agreement between the supplier and the buyer. The color should be uniform and consistent. 5.2 Appearance: The inner and outer walls of the pipe should be smooth and flat, without bubbles, cracks, depressions, protrusions, discoloration lines, or obvious impurities. The cross-section of the sleeve should be cut flat and perpendicular to the axis, without cracks or burrs. 5.3 Structural Dimensions and Length: The typical dimensions of phosphogypsum-reinforced polyvinyl chloride (PVC) porous and polygonal pipes for telecommunications are shown in Table 1. Table 1: Dimensions of phosphogypsum-reinforced PVC porous and polygonal pipes for telecommunications Unit: mm Inner diameter D Minimum outer wall thickness e1 Minimum inner wall thickness e2 Width and deviation W Height and deviation H Minimum pipe length L Effective number of holes Nominal value Allowable deviation 28 ± 0.5 2.8 2.2 110 ± 0.3 95 ± 0.3 7 holes 28 2.8 2.2 125 ± 0.3 15 ± 0.3 9 holes 33 2.8 2.2 146 ± 0.4 135 ± 0.4 9 holes 5.4 Bending: The polygonal pipe should not have an "S"-shaped bend, and the bending in the same direction should not exceed 2%. 5.5 Physical and Mechanical Performance Requirements: The physical and mechanical performance of phosphogypsum-reinforced PVC porous and polygonal pipes for telecommunications should meet the requirements specified in Table 2. Table 2: Physical and Mechanical Performance Requirements for Phosphogypsum-Reinforced PVC Porous and Polygonal Pipes for Telecommunications Serial Number Item Unit Performance Requirements 1 Fall hammer impact test /(0±1)℃, 2h, no cracking of the sample 2 Pipe stiffness kN/m2 ≥ 1500 3 Sleeve drop test — No damage or cracks in the sample 4 Tensile yield strength MPa ≥ 30 5 Longitudinal shrinkage rate