In a global market where safety awareness is increasingly prioritized, SANYUAN Group continues to align with cutting-edge industry trends by consistently investing in the development and design of advanced fire-retardant and fire-resistant cables.

In 2025, SANYUAN upgraded our cable fire performance test apparatus and is proud to announce that we are now equipped with the top class, state-of-the-art Cable Fire Performance Test Laboratory, giving us the capability to conduct comprehensive testing on the fire safety performance of cables.

Comprehensive Fire Safety Testing Capabilities

Test for vertical flame propagation (single insulated wire or cable)

This test evaluates the burning behavior of single cable (600mm sample) in a fire.
By verifying whether the flame can extinguish itself and the length of the burn damage, it can be judged whether the cable meets the CPR Eca level.

Standards:

  • IEC 60332-1-2
  • EN 60332-1-2
  • UL 1581 FT1&VW-1

Test for vertical flame spread
(bunched wires or cables)

This test method tests a cable bundle (3600mm) with regard to fire propagation.
According to the flame spread after applying specified flame power and burning time to the cable bundle, the cable can be classified into Category A, B, C, and D.

Standards:

  • IEC 60332-3-22 up to 25 Cat A-D
  • EN 60332-3-22 up to 25 Cat. A-D

Test for heat release and smoke production during flame spread
(bunched wires or cables)

This advanced test not only measures flame spread but also assesses the burning behavior and smoke production of bunched cable.
Fire growth rate and heat release are the main basis for cable CPR Dca to B1ca classification, while smoke generation and flaming droplets are used for additional classifications of s and d.

Standards:

  • EN 50399 CPR Dca-B1ca

Test of circuit integrity (FE/PH)

This test is used to determine whether a single cable can maintain circuit integrity during a specific fire exposure period.
Depending on market standards and specific application requirements, mechanical shock or water spray may also be applied during the cable burning process. Cables that meet the test requirements are marked with ‘FE180,’ ‘PH120,’ or other relevant standard compliance marks following their model numbers.

Test of circuit integrity (fire only)

  • IEC 60331-11/-21/-23/-25
    (>750 °C)
  • BS 6387 (Category C)
    (950 °C)

Test of circuit integrity (fire and mechanical shock)

  • IEC 60331-1/-2
    (>830 °C, 2A)
  • EN 50200 (PH)
    (>830 °C, 2A)
  • BS 6387 (Category Z)
    (950 °C, 3A)

Test of circuit integrity (fire and water)

  • EN 50200 Annex E
    (>830 °C, 2A)
  • BS 6387 (Category W)
    (650 °C, 3A)

Commitment to Quality and Safety

With state-of-the-art laboratory facilities and strict adherence to international standards, SANYUAN has the ability to collaborate closely with customers to develop innovative fire-resistant cable solutions entirely in-house. Moreover, we conduct regular testing on our certified cables within portfolio to ensure every batch delivered meets the highest quality and safety standards with consistent performance. By continuously providing customers with excellent product experience, further enhanced their trust and satisfaction with SANYUAN brand.

About

Hangzhou SANYUAN Cable is a privately owned company serving a significant segment of the infrastructure for global Structured Cabling Systems (SCS) and Telecommunications. SANYUAN Cable redefines manufacturing and development through cutting-edge engineering and continued innovation. Amid global challenges, SANYUAN’s ISO-certified excellence and R&D ensure product reliability, while our sustainability-driven designs meet and surpass industry standards. To learn more, visit www.sanyuancable.com