JB/T 14515-2024 in English
VALIDHeat shrinkable fiber optic splicing tube
- Issued on:2024-03-29
- Implemented on:2024-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$203.00
| Standard No: | JB/T 14515-2024 |
| Document status: | VALID |
| Title in English: | Heat shrinkable fiber optic splicing tube |
| Title in Chinese: | 热收缩光纤接续管 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-03-29 |
| Implemented on: | 2024-10-01 |
| ICS Classification: | 29.035.20-Plastics and rubber insulating materials |
| Chinese Classification: | K15-Electrical insulating material and its products |
| Professional Classification: | JB-Machinery |
| Related Keywords: | shrinkable optical fiber
shrinkable fiber shrinkable tubes optic splicing tube introduction interpretation heat shrinkage |
Introduction
Interpretation of the core content of the standard
JB/T 14515-2024 is my country's first mechanical industry standard specifically formulated for heat shrinkable optical fiber splicing tubes, which stipulates the technical requirements for composite structure products composed of heat shrinkable tubes, hot melt tubes and 304 stainless steel needles. The standard clarifies the performance index system of polyolefin materials for the first time, including the test methods and qualified judgment criteria for 14 key parameters.
Product Structure Characteristics Analysis
| Components | Material | Core Functions | Key Technical Indicators |
|---|---|---|---|
| Heat Shrink Tube | Polyolefin | Insulation Protection | Length Change Rate±5%, Electrical Strength≥25kV/mm |
| Hot Melt Tube | Polyolefin | Waterproof Seal | Melting Point≥85℃, Elongation at Break≥200% |
| Steel Needle | 304 Stainless Steel | Mechanical Support | Conforms to GB/T1220-2007 standard |
Comparison of key performance indicators
The comparison between Table 2 and Table 3 in the standard shows that the mechanical property requirements of heat shrink tubing and hot melt tubing are highly consistent, but hot melt tubing requires additional melting point detection (≥85℃). In typical application scenarios:
- Outdoor optical cable splicing: Pay special attention to the tensile strength retention rate after 500 temperature cycles (-40℃~85℃)
- Submarine optical cable system: The performance stability of the constant humidity test (85℃/85%RH) for 30 days is crucial
Standard implementation recommendations
Based on the storage requirements of Article 7.3 of the standard, it is recommended that:
- Establish a batch management system and strictly record the production number and factory date
- The storage environment temperature should be controlled below 25℃ and the relative humidity ≤60%
- Products with a storage period of more than 3 years must undergo a full-item type inspection in accordance with Article 6.2
Technology evolution trend
Compared with international standards IEC 60794-1-217, this standard is more stringent in the environmental adaptability test:
- Add 136℃ high temperature aging test for 168 hours
- Specify the flexibility requirement of secant modulus ≤175MPa under 2% elongation
- Specify the maximum dimensional tolerance after heat shrinkage (such as 0.4X10 type ≤1.05mm)
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