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Product No: RSB-ISO19642
RSB-ISO19642 Automotive Cables Resistance to Flame Propagation Test Apparatus is mainly used for testing the flame resistance performance of insulating materials for automotive cables, enabling accurate determination of their combustion characteristics. This apparatus supports customizable preset combustion durations for samples, with conveniently adjustable flame parameters, making it suitable for compliance verification and reliability screening of automotive cables of various specifications.
A Bunsen burner conforming to ISO 19642-2 standard (9mm inner diameter combustion tube) was used, with its internal blue flame temperature stabilized at (950±50)℃. The test specimen was suspended in a metal casing without ventilation, exposing the specimen to the tip of the inner cone of the flame, and pressure was used to keep the specimen upright throughout. The flame is applied to the specimen at a vertical angle of 45° ± 10°, with the flame tip precisely contacting the upper section of the insulation layer at (500 ± 5) mm. The flame application time strictly varied depending on the cable specification：
• For samples with conductor size < 2.5 mm²: apply flame for 15S+2S.
• For samples with conductor size ≥ 2.5 mm²: apply flame for 30S+2S. After removing the flame, the conductor of the sample should not be broken.
Standards:
| Standards No. | Standards Name |
| ISO 19642-2:2023, Clause 5.5.15, Figure 15, Appendix C | Road vehicles — Automotive cables — Part 2: Test methods |
| ISO 6722-1:2011, Clause 5.22, Figure 10 | Road vehicles — 60 V and 600 V single-core cables — Part 1: Dimensions, test methods and requirements for copper conductor cables |
| SAE J1128:2020, Clause 6.8, Figure 2 | Low Voltage Primary Cable |
| ECE R118 Rev.3, Clause 4, Figure 1 | Uniform technical prescriptions concerning the burning behaviour and/or the capability to repel fuel or lubricant of materials used in the construction of certain categories of motor vehicles |
Specifications:
| Category | Technical specs |
| Combustion time setting range | 0.1~999.9S |
| Burning angle | The sample is at a 45° angle to the horizontal; the Bunsen lamp is at a 90° angle to the sample axis. |
| Gas flow adjustment range | 160~1600 ml/min |
| Chamber dimensions (L *D * H) | (300±25)*(600±25)*(1175±75) mm |
| Combustion gas | Propane and air mixture |
| Temperature measuring copper block | Conforms to IEC 60695-11-2 Figure A.7 standard; Φ5.5±0.01mm; Weight before drilling: 1.76g±0.01g; Material: C11000 pure copper |
| Thermocouple | K type, wire diameter 0.5mm |
| Flame temperature | (950±50)℃ |
| Flame height | Outer flame 100mm, inner flame 50mm; distance from sample surface to Bunsen burner 50mm |
| Bunsen lamp specifications | Conforms to ISO 19642-2 standard, inner diameter 9mm |
| Chamber material | 1.2mm thick 304 stainless steel plate; electrical control box and combustion chamber are designed to be independently separated. |
ISO 19642-2:2023, Clause 5.5.15, Figure 15
ISO 19642-2:2023,Figure C.1 Metallic enclosure dimensions
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