T/GDWCA 0021-2018 Abolished Group standards

T/GDWCA 0021-2018 Security Power Cables General Specification

Publish Date: 2018-01-31 Implement Date: 2018-02-28 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/GDWCA 0021-2018

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: Cables and their accessories

ICS Name: Cable

Publish Date: 2018-01-31

Implement Date: 2018-02-28

Scope

Scope: This standard specifies the terms, definitions, and abbreviations, classification and marking, technical requirements, marking, manufacturing length, test methods, inspection rules, packaging, transportation, and storage of power cables for security applications. This standard applies to security power cables used in intrusion alarm systems, video surveillance systems, access control systems, building intercom systems, electronic patrol systems, parking lot (garage) safety management systems, and other security systems composed or integrated by these systems. Main technical content: I. General requirements: 1. They shall comply with the requirements for copper conductors in GB/T 3953. The single wires in the conductors may be tin-plated, and the tin-plated copper wires shall comply with the requirements in GB/T 4910. 2. They shall be made of PE, PVC-J, PVC-J90, WDZR-J, TPE, XLPE, or F materials. 3. The insulation color of 2-core power cables shall be dual-colored, and the insulation of 3-core power cables shall be brown, blue, and yellow/green dual-colored. 4. They shall be twisted and formed, with right-hand twisting. The twisting pitch shall not exceed 16 times the outer diameter of the cable, etc. II. Special performance requirements: 1. After the single-vertical combustion test, the charred portion of the sample shall not exceed the range of 50 mm to 540 mm below the lower edge of the upper clamp. 2. After the bundle-vertical combustion test, the charred length of the sample from the bottom edge of the nozzle shall not exceed 2.5 mm, and the time of flaming combustion on the sample after the fire is stopped shall not exceed 1 hour, etc.