阻燃环保型聚乙通信电缆南海品质可靠SYV射频同轴电缆振奋
Product characteristics and USES: this product has high fireproof performance, through direct combustion flame, in a certain period of time is not short circuit and short circuit fault, therefore, when the fire broke out, is beneficial to reduce the loss, low smoke zero halogen type cable belong to environmental protection cable, especially suitable for fire to demand higher power, large buildings, railways, shipping industry, such as product/HHTZH009.2 refractory properties accord with GB12666.6 (IEC331) 1-90 re ?? Ac rated voltage: U0/U 0.6/1 kv 2. ?? The highest working temperature for a long time: flame retardant PVC insulated and sheathed 70 ℃ and 105 ℃?? Fluorine plastic insulation and sheath 200 ℃ and 260 ℃ with cross-linked polyethylene insulation 90 ℃ 90 ℃ low smoke zero halogen flame retardant polyolefin low smoke zero halogen flame retardant crosslinked polyolefin 90 ℃ and 120 ℃. ?? Minimum ambient temperature: flame retardant PVC sheathed: fixed installation to 40 ℃, the fixed installation - 15 ℃ fluorine plastic insulation and sheath: fixed installation - 60 ℃; The fixed installation - 20 ℃ 4. Refractory characteristics: comply with IEC331 flame temperature 750 ℃, flame
IA-DJVVP3R IA-DJYVP3R IA-DJYJVP3R 本安型、铝塑复合膜总屏蔽软结构 。IA-DJVPVPR IA-DJYPVPR IA-DJYJPVPR 本安型、编织分对屏蔽、总屏蔽(铜丝或镀锡丝)软结构。
2电缆允许环境温度为-40℃~+55℃范围内使用。使用过程中,电缆应防止高温直接辐射或接触。3电缆导体的长期允许工作温度为70℃,敷设时温度应不低于0℃。4电缆允许弯曲半径:无铠装层的电缆应不小于电缆外径的6倍,有铠装层的电缆应不小于电缆外径的12倍。
一些常见问题:(希望各位买家能花上几分钟时间认真阅读)1.电线一扎长度:100米,正负误差2-3米;2.电线型号:BV单股,BVR多股,BVV双胶单股,BVVR双胶多股;3.电线常用规格:1平方/1.5平方/2.5平方/4平方/6平方/10平方等;区别:BV为单股线,BVR为多股,BVR比BV贵5%。
ZR-BPFFP氟46绝缘和护套铜丝编织屏蔽耐高温变频电力电缆。ZR-BPFFP2氟46绝缘和护套铜带绕包屏蔽耐高温变频电力电缆。ZR-BPFFPP2氟46绝缘和护套铜丝编织铜带绕包屏蔽耐高温变频电力电缆ZR-BPFFP3氟46绝缘和护套铝聚酯复合膜绕包屏蔽耐高温变频电力电缆。
为了改善这种状况,可以在负载两端并联一定的电阻,RC或灯泡。SSR的许多负载如灯负载,电动机负载,感性和容性负载,在接通时的过渡过程会形成浪涌电流,由于散热不及,浪涌电流是使固态继电器损坏的最常见的原因。为了适应这种情况,SSR根据其内部电路结构和输出器件特性,一般均给出了过负载(或浪涌电流)参数倡议额定输出电流(最大值)的倍数,脉冲(浪涌)持续时间,循环周期和次数来表示。一般,直流SSR的过负载(浪涌)额定值远小于同功率的交流SSR。
Call communication cable product features low cable of rated voltage: the minimum working temperature is not lower than 500 v low cable - 40 ℃. The highest long-term low cable allows working temperature: polyethylene insulation is not higher than 70 ℃; Cross-linked polyethylene insulation is not higher than 90 ℃. Low cable temperature: the minimum 0 ℃. Preheat if below minimum laying temperature. 's main electric cable performance: (l) 20 ℃ conductor dc resistance: 0.75 was no more than 26 / km; 2.0 was no greater than 9.8 Ω/km (2) 20 ℃ when the cable insulation resistance: 0.75 was not less than 300 m Ω • km; 2. Om Ω • Omm2 not small to 10 km. (3) voltage test between cable core and cable core, and between wire core and shield through ac 2500V/5min. (4) the working capacitance of the cable set shall not exceed 100pF/m when the test frequency is 1kHz. (5) the capacitance imbalance of the cable set shall not be greater than 250pF when the test frequency is lkHz and the cable length is 250Im. The combustion characteristics of the ending cable
DJVPV22DJYPV22DJYJPV22编织分对屏蔽(铜丝或镀锡丝)、铠装。 DJVP2V22DJYP2V22DJYJP2V22铜塑复合膜分对屏蔽、铠装。 DJVP3V22DJYP3V22DJYJP3V22铝塑复合膜分对屏蔽、铠装。
(4)保护层保护层的作用是保护电力电缆免受外界杂质和水分的侵入,以及防止外力直接损坏电力电缆。电子计算机用屏蔽电缆,选用介电常数小的高压聚乙烯作绝缘。型号/名称/性能型号电缆名称敷设方式DJYPV铜芯聚乙烯绝缘,对绞铜丝编织屏蔽,聚氯乙烯护套电子计算机电缆1、固定敷设在室内、电缆沟或管道内。
HYA:铜芯实心聚烯烃绝缘挡潮层聚乙烯护套市内通信电缆HYAT:铜芯实心聚烯烃绝缘填充式挡潮层聚乙烯护套市内通信电缆HYAC:铜芯实心聚烯烃绝缘自承式挡潮层聚乙烯护套市内通信电缆HYA53:铜芯实心聚烯烃绝缘挡潮层聚乙烯护套钢塑带铠装聚乙烯护套市内通信电缆HYAT53:铜芯实心聚烯烃绝缘填充式挡潮层。
3、产品型号、名称及使用范围型号名称使用范围YVV聚氯乙烯绝缘、聚氯乙烯护套仪表用电缆固定敷设,用于仪器、仪表的连接YVVP聚氯乙烯绝缘、聚氯乙烯护套仪表用屏蔽电缆同上,用于要求抗干扰的情况下RVV聚氯乙烯绝缘、聚氯乙烯护套仪表用软电缆用于要求柔软的场合RVVP聚氯乙烯绝缘、聚氯乙烯护套仪表用屏蔽软。
敷设时电缆的温度应不低于0℃,敷设时弯曲半径应不小于电缆外径的10倍。有铠装层或铜带屏蔽结构的电缆,应不小于电缆外径的12倍。适用于交流额定电压U0/U=0.6/1KV供电回路中。电缆导体的最高工作温度为70℃短路时:电缆导体最高温度不超过160℃(持续时间不大于5S)电缆允许弯曲半径不小于15D注:D为电缆外径mm。
三开单控开关怎么接线?首先要用测电笔找到火线,然后火线要与3个接线柱(如图)连接,余下的三根线就是去灯泡的线,在图示的另外三个接线柱随便接,然后试验开关,找好开关对应的灯记住就可以,如果感觉顺序不方便,可以交换。三控开关,是指对某个装置设备进行多地方的分别控制,三个开关控制同一盏灯,就是在双控的基础上,把两个开关的连接线中间再加上一个双刀双掷开关。如果没有的话,也可以用双开代替。在生活中我们常常会看到,要打开一盏灯,在客厅进门时可以控制,到了卧室需要休息时无需再跑到客厅去关灯,一般在卧室也会安装一个开关对客厅的灯进行控制。
主要技术性能:1)额定电压:交流50Hz,500V。3)绝缘电阻:20℃时,0.8mm2,³300MW/km;2.5mm2,?0MW/km。4)直流电阻:20℃时,0.8mm2,£26W/km;2.5mm2,£2.0W/km。
吊线和电缆用同一外护层,经济实用,安装敷设方便。在一30~C一60~C的环境条件下,电缆的机械和电气性能保持不变。结构:导线:退火裸铜线,铜线直径为,0.4,0.50,0.60,0.70,0.80,0.90mm。
6、 对称的三芯电缆结构设计,具有比四芯电缆更好的传输性能。型号名称BPYJVTP2-TK 铜芯交联聚乙烯绝缘聚氯乙烯护套铜丝缠绕铜带绕包屏蔽变频器用回路电缆。ZRBPYJVTP2-TK铜芯交联聚乙烯绝缘阻燃聚氯乙烯护套铜丝缠绕铜带绕包屏蔽变频器用回路电缆。
Model specification of frequency conversion cable: series code BP frequency conversion cable; Insulation code YJ crosslinked polyethylene insulation; V polyvinyl chloride sheath; E halogen-free low smoke polyolefin sheath; Shielding code P copper wire braided shielding; P1 copper wire wound shielding; P2 copper band shielding; P3 aluminum strip shielding; TP2 concentric conductor + copper band shielding structure; P1-2 double shielding of copper wire winding + copper tape wrapping; PX12 copper band shielding + tin coated copper wire braided double shielding; Armor code 22 steel belt armor; 32 steel wire armouring; Flame retardant code ZR common flame retardant type; WDZ low smoke halogen-free flame retardant type.