GB/T 3048.4-2025 Active National standards

GB/T 3048.4-2025 Test methods for electrical properties of electric cables and wires—Part 4:Test of DC resistance of conductors

GB/T 3048.4-2025 Test methods for electrical properties of electric cables and wires—Part 4:Test of DC resistance of conductors

Publish Date: 2025-08-29 Implement Date: 2026-03-01 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: GB/T 3048.4-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Cables and their accessories

ICS Name: Cable

Publish Date: 2025-08-29

Implement Date: 2026-03-01

Pages: 16 pages

Scope

This document describes the test method for the DC resistance of conductors in wires and cables, including test equipment, sample preparation, test conditions, test procedures, test results, and calculations and test records.
This document is suitable for measuring the DC resistance of conductors in wires and cables, with a measurement range of:
—— Two-arm bridge: 1×10-7Ω~99.9Ω; —— Single-arm bridge: 1Ω and above.
This document is not suitable for measuring the DC resistance of conductors in installed wires and cables.

Development Information

Word Count: 18 Thousand words Pages: 16 pages

Same series standard

GB/T 3048.8-2025 Test methods for electrical properties of electric cables and wires— Part 8:AC voltage test GB/T 3048.11-2025 Test methods for electrical properties of electric cables and wires—Part 11:Test for dielectric dissipation factor GB/T 3048.12-2025 Test methods for electrical properties of electric cables and wires—Part 12:Partial discharge test GB/T 3048.13-2025 Test methods for electrical properties of electric cables and wires—Part 13:Impulse voltage test

Replace the following standards

GB/T 3048.4-2007 Test methods for electrical properties of electric cables and wires—Part 4:Test of DC resistance of conductors

Referenced Standards

GB/T 2900.10-2001 Electrotechnical vocabulary—Electric cables GB/T 2900.10-2013 Electrotechnical terminology—Electric cables GB/T 3048.1-1994 Test methods for determining electrical properties of electric cables and wires General GB/T 3048.1-2007 Test methods for electrical properties of electric cables and wires—Part 1:General

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