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牌号简介 About |
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HFDB-4202 NT是一种长寿命,水树阻燃,未填充,交联,低密度聚乙烯绝缘化合物。永久性树木阻燃剂在电力电缆使用中提供了改善的性能,包括暴露在潮湿环境中,同时保留了传统交联聚乙烯的优良物理、电气和加工特性。HFDB-4202 NT化合物为电力事业提供:最先进的“水”树阻燃技术。在该领域已经有25年的实践证明。优异的电气性能。规格HFDB-4202 NT树木阻燃化合物设计用于配电电缆,特别是在地下应用(有或无防潮层),提供了改善XLPE电缆性能。按照良好的商业制造惯例,使用HFDB-4202 NT绝缘的电缆应符合以下规范和条例的最新版本:ANSI/ICEA:S-94-649、S-97-682、S-93-639/NEMA WC74(TR-XLPE要求)AEIC:CS8 RUS 50-70(U-1)CEA:WCWG-01和WCWG-02 IEC:60502 CENELEC:HD 620 S1/A3、HD 629 s1 GB/T 12706 DL/T 1070型 HFDB-4202 NT is a long-life, water-tree-retardant, unfilled, crosslinkable, low density polyethylene insulation compound. The permanent tree-retardant additive provides improved performance in power cables in service involving exposure to moisture while retaining the excellent physical, electrical, and processing attributes of conventional, crosslinkable polyethylene. HFDB-4202 NT Compound provides electric utilities with: State-of-the-art "water" tree-retardant technology. Proven in the field for over 25 years. Excellent electrical performance. Specifications HFDB-4202 NT tree-retardant compound is designed for use in power distribution cables and especially in underground applications (with and without moisture barriers), providing for improved performance over XLPE cables. Cables insulated with HFDB-4202 NT, using sound commercial fabrication manufacturing practice, would be expected to meet the latest editions of the following specifications and regulations: ANSI/ICEA: S-94-649, S-97-682, S-93-639 / NEMA WC74 (TR-XLPE requirements) AEIC: CS8 RUS 50-70 (U-1) CEA: WCWG-01 & WCWG-02 IEC: 60502 CENELEC: HD 620 S1/A3, HD 629 S1 GB/T 12706 DL/T 1070 |
技术参数 Technical Data | |||
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物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
密度 Density |
0.920 | g/cm³ | ASTM D792 |
交叉结合的程度(Extractables) The degree of cross combination (Extractables) |
< 20 | % | ASTM D2765A |
机械性能 MECHANICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
拉伸强度 tensile strength |
20.0 | MPa | ASTM D638 |
拉伸应变 Tensile strain |
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断裂 fracture |
500 | % | ASTM D638 |
老化性能 Aging performance |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
拉伸强度保持率 Tensile strength retention rate |
ASTM D638 | ||
14 days:150℃ 14 days:150℃ |
> 75 | % | ASTM D638 |
30 days:121℃ 30 days:121℃ |
% | ASTM D638 | |
30 days:136℃ 30 days:136℃ |
% | ASTM D638 | |
伸长保持率 Elongation retention rate |
ASTM D638 | ||
14 days:150℃ 14 days:150℃ |
% | ASTM D638 | |
30 days:121℃ 30 days:121℃ |
% | ASTM D638 | |
30 days:136℃ 30 days:136℃ |
% | ASTM D638 | |
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
高温蠕变 High temperature creep |
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200℃ 200℃ |
% | ICEA T-28-562 | |
热固性 thermosetting |
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200℃ 200℃ |
% | ICEA T-28-562 | |
电气性能 Electrical performance |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
体积电阻率 Volume resistivity |
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23℃ 23℃ |
ohms·cm | ASTM D257 | |
介电强度 Dielectric strength |
ASTM D149 | ||
3.18 mm 3.18 mm 2 |
kV/mm | ASTM D149 | |
3.18 mm 3.18 mm 3 |
kV/mm | ASTM D149 | |
介电常数 Dielectric constant |
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60 Hz 60 Hz |
ASTM D150 | ||
耗散因数 Dissipation factor |
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60 Hz 60 Hz |
ASTM D150 | ||
Water-Tree Growth Rate Water-Tree Growth Rate 4 |
% | ASTM D6097 | |
Water-Tree Relative Size Water-Tree Relative Size 5 |
% | ASTM D6097 |
备注 |
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1 一般属性:这些不能被视为规格。 |
2 方法A(短时间) |
3 方法B(逐步) |
4 Rate is relative to rate for Dow's standard XLPE. FREQ = 1 kHz. |
5 Size is relative to size for Dow's standard XLPE |
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