T/GZHG 015-2020 Abolished Group standards

T/GZHG 015-2020 Modified Polyvinyl Chloride (MPVC-H) hexagonal structure wall pipe for power and communication cable protection

Publish Date: 2020-05-06 Implement Date: 2020-05-06 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 015-2020

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: Electrician's materials and general parts

ICS Name: Plastic Composite

Publish Date: 2020-05-06

Implement Date: 2020-05-06

Scope

Main Technical Content: 5 Technical Requirements 5.1 Raw Material Requirements The main raw materials used in the production of pipe materials should be PVC resin. Other materials may be added to enhance the performance of the pipes, but the PVC resin content (by mass) should be more than 80%. No plasticizers should be added, and the content of fillers should not exceed 5%. 5.2 Product Requirements 5.2.1 Color, Appearance, and Dimensions 5.2.1.1 Color The color of the pipes is generally orange. Other colors can be determined by negotiation between the supplier and the buyer. The color should be uniform and consistent. 5.2.1.2 Appearance (MPVC-H) The hexagonal pipes should not have bubbles, cracks, obvious impurities, discoloration lines, or irregular ripples on their inner and outer walls. The inner wall should be smooth and flat. 5.2.1.3 Dimensions and Tolerances The dimensions and tolerances should comply with Table 1. The length is generally 6.2m, but can be determined by negotiation between the supplier and the buyer. There should be no negative deviations in length. 5.2.2 Technical Performance (MPVC-H) The physical and mechanical properties of the hexagonal pipes should comply with Table 2. Table 2 (MPVC-H) Physical and Mechanical Properties of Hexagonal Pipes Unit Technical Indicator Test Method Density kg/m3 ≤1500 6.3 Vicat Softening Temperature ℃ ≥80 6.4 Oven Test - No delamination or cracks 6.5 Flat Test - The sample should not show cracking, delamination, or peeling 6.6 Ring Stiffness SN32 kN/m2 ≥326 6.7 SN40 ≥40 Ring Segment Heat Compression Force kN SN32 ≥0.5 6.8 SN40 ≥0.75 Fall Hammer Impact Test -10/10 Pass 6.9 Flame Retardancy Class - V-0, no drip 6.10 Volume Resistivity Ω·m ≥1×1011 6.11 Static Friction Coefficient -≤0.35 6.12 Sealing Performance of Connections -0.01 MPa water pressure at 20°C for 30 minutes; no leakage or water penetratio