According to standards
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Company ProfileShaanxi Kunlan Cable Manufacturing Co., Ltd. is a modern professional wire and cable manufacturing enterprise integrating R&D, production, sales and service, with a professional technical R&D team, production team and marketing team.
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Product CenterThe company specializes in producing a variety of "ShanKunLan" brand wires and cables. Main products include: various installation wires, plastic insulated power cables, control cables, cross-linked cables, overhead insulated cables, parallel bundled cables, pre-branched cables, rubber sheathed cables, flame-retardant cables, fire-resistant cables, low-smoke halogen-free cables, and radiation-resistant cables, etc. We can also design and produce various special cables according to customer needs.
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Applications & ProjectsProducts are widely used in national power grids, military industry, railways, highways, metallurgy, photovoltaics, and civil construction.
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TechnicalThe company boasts a team of professional R&D personnel and skilled industrial workers. It has established a first-class corporate technology R&D center and relies on renowned domestic research institutions such as Shanghai Cable Research Institute, Xi'an Jiaotong University, and Harbin Institute of Technology for technical support. Its strong technical capabilities provide powerful support for product quality control and improvement, as well as new product development.
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BlogThe company boasts a team of professional R&D personnel and skilled industrial workers. It has established a first-class corporate technology R&D center and relies on renowned domestic research institutions such as Shanghai Cable Research Institute, Xi'an Jiaotong University, and Harbin Institute of Technology for technical support. Its strong technical capabilities provide powerful support for product quality control and improvement, as well as new product development.
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RecruitmentThe company boasts a team of professional R&D personnel and skilled industrial workers. It has established a first-class corporate technology R&D center and relies on renowned domestic research institutions such as Shanghai Cable Research Institute, Xi'an Jiaotong University, and Harbin Institute of Technology for technical support. Its strong technical capabilities provide powerful support for product quality control and improvement, as well as new product development.
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Online mallThe company boasts a team of professional R&D personnel and skilled industrial workers. It has established a first-class corporate technology R&D center and relies on renowned domestic research institutions such as Shanghai Cable Research Institute, Xi'an Jiaotong University, and Harbin Institute of Technology for technical support. Its strong technical capabilities provide powerful support for product quality control and improvement, as well as new product development.
Product Center
Flame-retardant, fire-resistant cables
Flame-retardant, fire-resistant cables
Even if ignited during an accidental fire, the cable products will not release dense smoke. This was evaluated during the experiment using light transmittance.
Keywords:
temperature
flame
cables
Belonging Category:
Product Description
GB/T 19666-2019 "General specifications for flame-retardant and fire-resistant wires and cables" GB/T 12666-2008 "Test methods for combustion of wires and cables"
GB/T 18380-2022 "Combustion test"
GB/T 17651-2021 "Determination of smoke density of cables or optical cables burning under specified conditions"
GB/T 17650-2021 "Test methods for gases released during combustion of materials taken from cables or optical cables" GA 306-2007 "Flame-retardant and fire-resistant cables, plastic insulation, flame-retardant and fire-resistant cable grading and requirements"
Product model and name
Model | Name |
ZR- | Flame retardant type |
NH- | Fire resistant type |
WDZ- | Halogen-free low-smoke flame-retardant type |
WDZN- | Halogen-free low-smoke flame-retardant and fire-resistant type |
... | ... |
Note:
● Halogen-free characteristics: The cable will not release halogen-containing compounds (F, CI, Br, I) during use or accidental fires, i.e., it will not release toxic gases.
● Low smoke: Even if ignited, the cable product will not release dense smoke during accidental fires, and is evaluated in terms of light transmittance during the experiment.
● Flame retardant (ZR): Under flame conditions, the cable product only spreads locally and the flame extinguishes itself in a short time after the fire source is removed. Flame retardant levels are classified as A, B, C, and D.
● Fire resistant (NH): Under flame conditions (ordinary flame temperature 750°C~800°C, A-level flame temperature 950°C~1000°C), the cable product can operate normally for more than 90 minutes.
● WDZ-type cables are divided into WDZA-, WDZB-, WDZC-, and WDZD- according to the flame retardant level. According to environmental requirements, they can also have fire-resistant properties, identified as WDZN-, and the corresponding flame retardant levels are WDZAN-, WDZBN-, WDZCN-, and WDZDN-. GA 306-2007 "Flame-retardant and fire-resistant cables, plastic insulation, flame-retardant and fire-resistant cable grading and requirements" specifies the following requirements for fire resistance levels:
Fire resistance level and technical requirements | ||||||
Fire resistance level | Technical requirements | |||||
Fire resistance characteristics | Smoke toxicity | Smoke density (minimum light transmittance) 1% | Corrosion resistance | |||
Test conditions | Line integrity | PH value | Conductivity μS/mm | |||
Class I | Fire temperature: 750°C~800°C | Meet GB/T | Comply with | ≥80 | ≥4.3 | ≤10 |
Class IA | Fire temperature: 950°C~1000°C | |||||
Class II | Fire temperature: 750°C~800°C | ≥60 | ||||
Class IIA | Fire temperature: 950°C~1000°C | |||||
Class III | Fire temperature: 750°C~800°C | Comply with | ≥20 | One | ||
Class IIIA | Fire temperature: 950°C~1000°C | |||||
Class IV | Fire temperature: 750°C~800°C | One | One | |||
Class IVA | Fire temperature: 950°C~1000°C | |||||
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