High pressure heat shrinkable casing is a kind of heat shrinkable casing with good insulation, heat resistance and aging resistance, widely used in high-pressure opening cabinets, power plants, substations and other busbar insulation protection, can play to prevent foreign body bonding, prevent small short circuit, prevent maintenance personnel from straying into the charged gap, prevent condensation flashover, increase the effect of interphase insulation. For the substation bus, high and low voltage switchgear bus insulation protection, can make the Switchgear structure compact (interphase distance shortening), to prevent occasional short-circuit accidents.

Scope of application: To eliminate short-circuit faults caused by small animals such as mice and snakes, to prevent the corrosion of the mother row by chemicals such as acids, alkalis and salts, to prevent accidents caused by the failure of maintenance personnel to enter the charged gap, to adapt to the development trend of switch miniaturization, and to solve the problem of interphase heat shrinkable pipe insulation in Busbar.

"Main Performance parameters"

1. Water absorption < 0.5%;

2. Radial shrinkage ratio 50%; axial shrinkage < 5%; complete shrinkage temperature 130 ℃;

3. Elongation at break > 400%;

4. Tensile strength 12.0Mpa;

5. Breakdown strength ≥25KV/mm;

6. Volume resistivity 4.3x1016ω.m;

7. Hardness <80 Shaw A;

8. Oxygen index ≥30;

9. Partial wall rate < 30%;

Products are divided into 10kV and 35kV two grades according to work pressure resistance

The standard colors are red, green and yellow.

UL Heat shrinkable Tube using high-quality polymer, by science with double-walled heat shrinkage comprise, mechanical co-mixing polymer alloy, product molding after the electronic accelerator irradiation cross-linked, continuous expansion. Products with environmental protection, soft, flame retardant, fast shrinkage, stable performance and other advantages. Safety standards were passed: UL224, VW-1, C-ULCSAC22.2OFT. Our company produces UL heat shrinkable tube with excellent flame retardant, insulation performance, very soft and elastic, low shrinkage temperature, fast shrinkage, can be widely used in wire connection, wire end processing, solder point protection, wire harness identification, resistance capacitor insulation protection, metal rod or pipe corrosion protection, antenna protection ; Fitness equipment parts and steel structure surface protection; anti-rust, anti-corrosion treatment of related products; wire and other product identification, etc.

Features of high temperature heat shrinkable tube UL Heat shrinkable pipe:

① starting shrinkage temperature of 70 ℃, ultra-thin complete shrinkage temperature of 110 ℃, ordinary complete shrinkage temperature of 120 ℃, axial shrinkage ≤ 5%;

②8 large harmful elements, halogen elements through SGS testing; does not contain organotin compounds (tributyltin/tributyl tin), Asbestos (Asbestos), Smoke Agent (AzoCompounds) and substances released during the restriction period-formaldehyde;

③ Scope of application: -55℃~125℃;

④ Complete specifications, Φ0.6~Φ180, and can be customized special specifications;

⑤ soft, flame retardant;

⑥ environmental performance in line with Sony and the European Union RoHS and other environmental standards.

⑦ easy to use, with oven and hot air gun heating can shrink.

关于高压热缩套管与UL热缩管的介绍

高压热缩套管是一种具有良好的绝缘性，阻热性和耐老化性的热缩套管，广泛用于高压开头柜，电厂，变电站等中母线排的绝缘保护，可以起到防止异物搭接，防止小动物短路，防止维护人员误入带电间隙，防止凝露闪络，增加相间绝缘作用。用于变电站母线，高、低压开关柜母线的绝缘防护，可以使开关柜的结构紧凑化（相间距离缩短），防止偶发性的短路事故。

应用范围：杜绝老鼠、蛇等小动物引起的短路故障；防止酸、碱、盐等化学物质对母排的腐蚀；防止检修人员误入带电间隙造成意外事故；适应开关小型化的发展趋势；解决母线槽的相间热缩管绝缘问题。

【主要性能参数】

1.吸水率＜0.5%；

2.径向收缩比50%；轴向收缩率＜5.0%；完全收缩温度130℃；

3.断裂伸长率＞400%；

4.拉伸强度12.0Mpa；

5.击穿强度≥25KV/mm；

6.体积电阻率4.3×1016Ω.m；

7.硬度＜80邵氏A；

8.氧指数≥30；

9.偏壁率＜30%；

产品按工作耐压分为10kV和35kV两种等级

标准颜色为红、绿、黄。

UL热缩管采用优质高聚物，经科学配双壁热缩管方、机械共混成高聚物合金，产品成型后经电子加速器辐照交联、连续扩张而成。产品具有环保、柔软、阻燃、收缩快、性能稳定等优点。通过了安规标准：UL224、VW-1、C-ULCSAC22.2OFT。我公司生产的UL热缩管具有优良的阻燃、绝缘性能，非常柔软有弹性，收缩温度低，收缩快，可广泛应用于电线的连接、电线端部处理、焊点保护、线束标识、电阻电容的绝缘保护、金属棒或管材的防腐蚀保护、天线的保护；健身器材零部件和钢结构表面防护；相关产品的防锈、防腐处理；电线和其它产品标识等。

高温热缩管UL热缩管的特点：

①起始收缩温度70℃，超薄型完全收缩温度110℃，普通型完全收缩温度120℃，轴向收缩率≤5%；

②8大有害元素、卤素元素通过SGS检测；不含有机锡化合物(三丁基锡类/三苯基锡类)、石棉(Asbestos)、烟雾剂(AzoCompounds)及限制期释放的物质-甲醛；

③适用范围：-55℃～125℃；

④规格齐全，Φ0.6～Φ180，并可定制特殊规格；

⑤柔软、阻燃；

⑥环保性能符合Sony与欧盟RoHS等环保标准。

⑦使用方便，用烘箱和热风枪加热即可收缩。