Valid

GB/T 47322-2026Test method for the fire resistance of cables under the elevated temperature conditions of a building fire (English PDF)

建筑火灾升温条件下电缆耐火性能试验方法

Preview PDF

This is a limited preview

Buy now to download the full PDF (13 pages)

Need quotation for your management?

Get a formal quotation for GB/T 47322-2026 in 30 minutes.

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 31, 2026

Implementation date

October 1, 2026

Scope

GB/T 47322-2026 is the English-translated version of 建筑火灾升温条件下电缆耐火性能试验方法.

GB/T 47322-2026 is the Chinese standard "Test method for the fire resistance of cables under the elevated temperature conditions of a building fire". Its scope clause reads: This document describes a test method for the fire resistance performance of cables under building fire temperature rise conditions.

This document applies to power cables, control cables, and mineral-insulated cables with a rated voltage of 0.6/1kV and below in building fire heating strips. Determination of fire resistance performance of the sample under standard time-temperature curve. Its clauses include terms and definitions.

Found what you need?

Document preview — GB/T 47322-2026

National Standard of the People's Republic of China

ICS: 13.220.50
Classification: C 82

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Experimental Apparatus
4.1 Refractory Testing Furnace
4.2 Furnace In-furnace Thermocouple
4.3 Pressure Measurement Probe
4.4 Continuity and pressure resistance testing device
4.5 Fuses
4.6 Accuracy of measuring instruments
5.Test conditions
5.1 Environmental Conditions
5.2 Heating Curve
5.3 Furnace pressure difference
6.Test Procedure
6.1 Specimen Arrangement
6.2 Temperature Measurement
6.3 Pressure Measurement
6.4 Electrical Connections
6.5 Fire resistance test
7.Experimental Results 8.
7.1 Line Integrity Judgment Criteria
7.2 Presentation of Experimental Results
8 Test Report

1 Scope

This document describes a test method for the fire resistance performance of cables under building fire temperature rise conditions.

This document applies to power cables, control cables, and mineral-insulated cables with a rated voltage of 0.6/1kV and below in building fire heating strips.

Determination of fire resistance performance of the sample under standard time-temperature curve.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 700 Carbon Structural Steel

GB/T 9978.1 Fire resistance test methods for building components - Part 1.General requirements

GB/T 13539.2 Low-voltage fuses – Part 2.Supplementary requirements for fuses used by designated personnel (mainly for industrial applications)

Standardized fuse system examples A to K

GB/T 21762 Cable Management - Cable Tray Systems and Cable Ladder Systems

GB/T 26784 Fire resistance testing of building components. optional and additional test procedures.

JB/T 10216-2025 Cable trays for electrical control and distribution

3 Terms and Definitions

The terms and definitions defined in JB/T 10216-2025, as well as the following terms and definitions, apply to this document.

3.1 test sample

Cable segments cut from finished cables for testing.

3.2 cable tray

An assembly consisting of a base plate and side plates that are integral with the base plate, or consisting of side plates connected to the base plate.

Note. Cable trays with ventilation holes on the base are perforated cable trays, while those without ventilation holes are non-perforated cable trays (also known as cable troughs). The structure of a cable tray includes corrugated reinforcement.

Strong structure, reinforced structure, flat plate structure, etc.

[Source. JB/T 10216-2025, 3.3]

3.3 testpiece

An assembly consisting of multiple test specimens installed in a non-porous tray as required by regulations, and the non-porous tray itself.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 13 pages — is available in the English PDF.

Referenced standards

Normative references

How to Download GB/T 47322-2026

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.