Wuxi Zhongxin Special Steel Co.，Ltd
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Influence of steel and plastic composite belt on tensile properties of optical cables According to the requirements of tensile properties of optical cables in communication industry indicators, the short-term stress of general single-protected pipe optical cables is required to be 1500N.The general structure of layer-stranded optical cable is: central reinforcement + loose sleeve + armored layer (steel belt or aluminum belt)+ outer sheath, the loose sleeve is filled with fiber and fiber paste, and cable paste is added between the loose sleeve and armored layer.But its main force elements for the center reinforcement, armored layer and outer sheath material (PE).In the elastic deformation stage of a material, its stress and strain are in direct proportion, and its proportion coefficient is called elastic modulus, also known as Young's modulus E.
Technical Indicator:
| No. | Item | Requirement | |
| 1 | Tensile strength Mpa | ≥300 | |
| 2 | Elongation at break ％ | ≥15 | |
| 3 | Stripping strength between steel tape and coating N/cm | ≥6.13 | |
| 4 | Shear strength of thermal zone for EGE | EGE broken or cohere destroyed between film and tape, but no shearing destroyed in thermal zones | |
| 5 | Thermal sealing strength N/cm | ≥17.5 | |
| 6 | Water proof(68 ±1℃,168h)N/cm | ≥6.13 | |
| 7 | The filling compound resistance(68±1℃,168h) | No delamination between steel tape with plastic film | |
| 8 | Corrosion resistance(0.1mol/1,NaOH,480h) | ≥7级 | |
| 9 | Dielectric strength | Single face EGE,1kVd.c.1min | Not breakdown |
| Double face EGE,2kVd.c.1min | Not breakdown | ||
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