Certification and Registration
IEC 60332-2-2 Vertical Flame Propagation Test for Single Wires or Cables: Spread of Flame Procedure
Category:
Electrical Wires
IEC 60332-2-2 Standard Description
IEC 60332-2-2 Tests on electric and optical fibre cables under fire conditions - Part 2-2: Test for vertical flame propagation for a single small insulated wire or cable - Procedure for diffusion flame
IEC 60332-2-2 Standard Introduction
The IEC 60332-2-2 test is part of the IEC 60332 series and is primarily used to determine the vertical flame propagation characteristics of single small insulated wires and cables. By conducting IEC 60332-2-2 testing, manufacturers and regulatory authorities can verify whether cables comply with specified fire safety requirements, thereby reducing the risk of fire spread in buildings and facilities.
IEC 60332-1-3 Scope of Application
Applicable to various power cables, optical fibre cables, and control and communication cables.
IEC 60332-2-2 Sample Preparation
A wire, cable, or optical fibre specimen with a length of (600 ± 25) mm shall be conditioned at (23 ± 5) °C and (50 ± 20)% relative humidity for at least 16 hours.
Note: If the specimen surface is coated with paint or varnish, the test specimen shall be conditioned at (60 ± 2) °C for 4 hours.
IEC 60332-2-2 Test Method
(1) Sample Preparation:
|
Sample Type |
Metallic conductor cable specimen |
Optical cable specimen |
|
Specimen Installation |
The sample is vertically fixed in the middle of the metal shield using a metal wire. |
The specimen is secured to two horizontal supports with metal wire. |
|
A force of 5 N/mm is applied to the lower portion of the specimen. 2 The load of |
- |
|
|
The distance from the load‑specimen connection point to the lower edge of the upper support shall be (550 ± 5) mm. |
The distance between the lower edge of the upper bracket and the upper edge of the lower bracket of the two horizontal supports for the fixed specimen shall be (550 ± 5) mm. |
|
|
- |
The distance between the lower edge of the upper bracket and the upper edge of the lower bracket of the two horizontal supports for the fixed specimen shall be (550 ± 5) mm. |
|
|
The specimen axis shall be perpendicular and positioned at the center of the metal enclosure, i.e., 150 mm from each side face and 225 mm from the rear face. |
||
(2) Blowtorch position
|
Sample Type |
Metallic conductor cable specimen |
Optical cable specimen |
|
Specimen Installation |
The angle between the centerline of the blowtorch and the centerline of the specimen is (45±2)°. |
|
|
The horizontal distance between the centerline of the blowtorch nozzle and the specimen shall be (10 ± 1) mm. |
||
|
The intersection of the centerline of the blowtorch and the centerline of the specimen, under an applied load of 5 N/mm². |
- |
|
|
The distance between the intersection of the torch’s centerline and the specimen’s centerline and the applied load shall be (100 ± 10) mm. |
The distance between the intersection of the torch’s centerline and the specimen’s centerline and the upper surface of the lower support shall be (100 ± 10) mm. |
|
|
The distance between the intersection of the blowtorch’s centerline and the specimen’s centerline and the lower edge of the upper support shall not exceed 465 mm. |
||
|
The flame shall envelop the specimen. |
||
(3) Ignition Time
The flame shall be applied to both metallic conductor cable specimens and optical fibre cable specimens for (20 ± 1) seconds.
(4) Post-Test Cleaning
After all combustion has ceased, wipe the specimen. If the original surface remains intact, removable soot and softening or deformation of non-metallic materials may be disregarded.
IEC 60332-2-2 Basis for determination
- Measure the distance between the lower edge of the upper support and the upper and lower boundaries of the charred section.
- To determine the starting point of the charred section, press the cable surface gently with a sharp object (such as a knife blade). The point where the elastic surface becomes brittle and powdery is considered the beginning of the charred section.
Available related cable testing services
IEC 60332-3-21 Tests on electric cables under fire conditions - Part 3-21: Test for vertical flame spread of vertically-mounted bunched wires or cables; Category A F/R
IEC 60332-3-22 Tests on electric cables under fire conditions - Part 3-22: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category A
IEC 60332-3-23 Tests on electric and optical fibre cables under fire conditions - Part 3-23: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category
IEC 60332-2-2 Tests on electric and optical fibre cables under fire conditions - Part 2-2: Test for vertical flame propagation for a single small insulated wire or cable - Procedure for diffusion flame
EN 50575 Power, control and communication cables - Cables for general applications in construction works subject to reaction to fire requirements
EN 13501-6 Fire classification of construction products and building elements - Part 6: Classification using data from reaction to fire tests on power, control and communication cables
GB/T 18380.13 Burning tests on electric and optical cables under flame conditions - Part 13: Test method for the determination of burning drips/particles by the vertical flame spread test for single insulated wires and cables
IEC 60332-3-25 Tests on electric and optical fibre cables under fire conditions - Part 3-25: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category D
SATISFY provides cable testing services under IEC 60332-2-2 fire exposure conditions, including Part 2-2: Vertical Flame Propagation Test for Single Small Insulated Wires or Cables - Diffusion Flame Procedure. Our services include diffusion flame testing, report interpretation, data analysis, and recommendations for corrective actions. For more information, please contact SATISFY customer service.
Related Information
SATISFY TECH AND SERVICE LLC
SATISFY TECH AND SERVICE LLC delivers full-lifecycle technical solutions for children’s products, hygiene care, protective equipment, furniture, and building materials. Our framework spans compliance pre-assessment, standard upgrading, and risk control. We empower manufacturers and exporters through expert testing, certification, consulting, and standards interpretation.
Contact Us
Address: Room 7D, Building A, Zhongzhou Holdings Financial Center, No. 88 Haide 1st Road, Haizhu Community, Yuehai Subdistrict, Nanshan District, Shenzhen
Phone: 0755-8273-9683
Mobile: 189-2676-2893
Email: info@sdswcn.com
Sales Window
WeChat Applet