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| PVC Insulated and PVC Sheathed Local Telephone Cable |
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- The cables are designed for main communicationlines of mining Wells, streets, etc and connecting cables betwwen connecting box and telephone.
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Type and description of cables |
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| Type |
Description |
Application |
| HUVV |
Copper core ,PVC Insulated and sheathed mining telephone cable |
Laying in mining well,
for common occasion |
| HUVV22 |
Copper cor, PVC Insulated and sheathed mining telephone cable with steel tape armor |
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- The temperature of cable of cables is -40¡æ?-?+60¡æ?
- The lowest installation temperature of cable is -5¡æ?
- Permissive bending radius of cable should be no less than 20 times of external diameter of cable.
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Main technical Parameter |
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Conductors construction and DC resistance should be in accordance with the table Following:
| type of cable |
Specification
of conductor |
Nom.
insulation
thickness |
Max.DC
resistance
at 20¡æ?/td>
| Min.insulation
resistance
at 20¡æ?/td>
| pairs
of cable |
HUVV
HUVV22 |
Φ0.8 |
0.54 |
40¦¸/km |
40M¦¸*km |
5,7,10,20,30,50,100 |
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- YD/T760-complied low density,middle and high density PE are adopted as insulation.
- There are 3 colors:red, blue ,and white for insulation ,When can be natural color.
- Nom.Value of sheath should conform to the stipulation of Table .Allow 10% minus. Tolerance for sheath thickness,but minium thickness should be not less than 85% of nominal value.
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- Finished cable can withstand AC 50HZ�000V when tested by voltage with standing test.
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- Min insulation resistance of cable at
20¡æ?should be in accordance with the stipulation of the Table of conductor.
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- Length that is to be reeled is no less than 100m.Should two sides agree ,any length is allowed to be in delivery. The tolerance of length should be no more than +-0.5%.
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