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buffering semi-conductive water blocking tape
1.strong moisture absorption
2.big expansion rate
3.quick expansion velocity
Buffering semi-conductive water blocking tape is used for water-proof layer inside the metal sheath of high or extra high voltage cable.
Specification and technical parameter is as follows:
item | omen130 | omen150 | omen200 | omen250 |
thickness(mm) | 1.3±0.5 | 1.5±0.5 | 2.0±0.5 | 2.5±0.5 |
unit weight(g/m2) | 200±40 | 240±40 | 280±40 | 320±40 |
tensile strength(N/cm) | ≥40 | ≥40 | ≥40 | ≥40 |
elongation(%) | ≥12 | ≥12 | ≥12 | ≥12 |
expansion velocity (mm/1st min) | ≥8 | ≥8 | ≥8 | ≥8 |
expansion height(mm/3min) | ≥12 | ≥12 | ≥12 | ≥12 |
surface resistance(Ω) | <1500 | <1500 | <1500 | <1500 |
volume resistance(Ω.cm) | <1×106 | <1×106 | <1×106 | <1×106 |
instant stability(°C) | 230 | 230 | 230 | 230 |
long-term stability(°C) | 90 | 90 | 90 | 90 |
water percentage(%) | <9 | <9 | <9 | <9 |
Feature:
1,it has characteristic of strong moisture absorption,big expansion rate and quick expansion velocity.
2,small resistance can make cable has semi-conductivity and weaken the electrical field strength effectively.
3,high mechanical strength makes it easy to be wrapped and longitudinal wrapped for kinds of cables.
4,it is heat-resistant and can bear high instant temperature.cable with this product can keep stable performance at instant high temperature.
Storage:
it should be stored in dry house,kept away from source of fire and not to be exposed to the sunshine.the shelf life is 6 months after the manufacturing date.also it should avoid moisture and mechanical damage during storage and transportation.