CHYVRP电缆结构16X1.0+2X1.0格福泉订购ZA-DJYVP4X2.5阻燃计算机电缆春风

CHYVRP电缆结构16X1.0+2X1.0格福泉订购ZA-DJYVP4X2.5阻燃计算机电缆春风

　　防蚁鼠电力电缆一、产品特点及用途本产品适用于在蚁鼠危害比较严重，且有绿色环保要求的场所，特别是埋地和管道敷设的电力系统输配线路。且五芯电力电缆采用独特的瓦形设计，使电缆具有结构稳定、重量轻、外径小的特点。



Smoke density test should be able to pass GB/ t17651.2-1998 cable or optical cable under certain conditions of smoke density stacking (the value of transmittance greater than 60%)

　　执行标准：JB8734.5-1998产品数量长期大量供应包装说明200米/卷；500米/卷线芯材质无氧铜芯数1～24芯护套材质PVC/PE电线大外径26（mm）标称截面0.12～2.5（mm2）RVVPRVVP屏蔽电缆缆芯：绝缘芯线绞合成缆，绕包聚酯薄膜带（PP带）RVVP屏蔽电缆护套：黑色/白色。

RS485 cable product description: Characteristic impedance of 100 ohms, conductor is 2 * 2 * 24 awg multi-strand tin electrolytic copper wire twisted and become, insulating sheath like installation of design and color recognition, overall aluminum foil/polyester belt shielding, additional independent stranded tinned copper wire grounding conductor, industrial gray PVC outer sheath, the standard 1 to RS - 485 communication cable, the characteristic impedance of 120 ohms, conductor is 2 * 24 awg stranded tinned copper wire, PE insulation, covered with aluminum foil/polyester composite with + 90% tin plated copper wire cover, double shielding with independent grounding conductor is RS - 485 communication cable.



　　产品描述：特性阻抗120欧姆，导体为2*2*24AWG多股镀锡电解铜丝绞合而成，花色绝缘护套宜于安装识别，铝箔/聚酯带总体屏蔽，附加独立多股绞合镀锡铜丝接地导体，工业灰色PVC外护套，符合ULAWM2919文件。

但是集电极电流的变化比基极电流的变化大得多，这就是三极管的放大作用。IC的变化量与IB变化量之比叫做三极管的放大倍数β（β=ΔIC/ΔIB,Δ表示变化量。），三极管的放大倍数β一般在几十到几百倍。由于基区很薄,加上集电结的反偏，注入基区的电子大部分越过集电结进入集电区而形成集电极电流Ic，只剩下很少（1-10%）的电子在基区的空穴进行复合，被复合掉的基区空穴由基极电源Eb重新补给，从而形成了基极电流Ib。

Fire retardant control cable model zr-kvvp22, zr-kvvvp2-22, zr-kvvvvp2, our company has been supplying for many years: 2. Zr-kvvp, zrc-kvvp, za-kvvp, zrb-kvvp, za-kvvrp, zc-kvvvrp, zrc-kvrp, zrc-kvrp, zrb-kvvvvvvvvp2, krkvp2-vrkp22 -KVVP32, etc. Control cables for mine flame retardant control cables: MKVV mkvvvvvvvvvvvvvvvvvv32 MKVVVRP: this product can be manufactured according to gb9330-88 electricity union IEC227(1979) and jcs258c-1986; The product is suitable for low voltage power supply, protection and measuring line of ac rated voltage 450/750v and 600/1000v and below. Especially suitable for power plants and substation control lines of 500KV or below. Use plastic insulation special shielding control cable can be external electricity, magnetic field.

　　电缆抗外磁场能力：在频率为50Hz，强度为400A/m的外界磁场下，当电缆的一端输入频率为1KHz，电流强度在0-100mA变化时，电缆的另一端输入信号变化值不超过±50uA。型号及名称：序号型号名称主要使用范围1ia-KVPV铜芯聚氯乙烯绝缘及护套铜丝编织屏蔽本安用控制电缆聚氯乙烯绝缘复合屏蔽本安电缆具有良好的电性能和抗干拢性能，可用于高要求及强干扰场合。
　　使用条件：防水电缆线长期允许工作温度65℃。产品适用于潜水泵，煤矿，水下作业，水中景光灯等水处理设备，该产品采用高密度胶具有防水等功能用途：本产品用于计算机和自动化设备连接用电缆，它具有抗干扰、信号衰减小等性能。


　　有阻燃。ZRCHYAT铜芯实心阻燃聚烯烃绝缘填充式挡潮层聚乙烯护套双层纵包轧纹钢带铠装聚乙烯套市内电。缆HUVV煤矿用聚氯乙烯绝缘聚氯乙烯护套通信电缆用于平巷、斜巷及机电硐室，阻燃HUYV煤矿用聚乙烯绝缘、阻燃聚氯乙烯护套通信电缆。

　　HYAT22：铜芯实心聚烯烃绝缘填充式挡潮层聚乙烯护套钢带铠装聚氯乙烯护套市内通信电缆。HYAT23：铜芯实心聚烯烃绝缘填充式挡潮层聚乙烯护套钢带铠装聚乙烯护套市内通信电缆。HYA市内通信电缆(广泛使用于城域网通信网络建设中，以架空和管道安装为主，主要传输音频信号)。

　　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填充式铠电缆以上两种产品主要使用于城域网通信网络建设的复杂环境中，直埋于地下，有阻水、防鼠咬效果，无须充气保护，主要传输音频信号。

”意思就是：电机容量（单位千瓦）除以额定电压（单位千伏），得出了的数值再乘以0.76。：额定电压为380V，容量15千瓦三相电机。代入口诀：15/0.38*0.76=29.99A。电机铭牌：额定电压660V，容量90KW电机。代入口诀：90/0.66*0.76=103A。电机铭牌：额定电压6000V，容量450KW电机。代入口诀：450/6*0.76=57A。电机铭牌当然，这个估算值和实际值是有误差的，因为这个估算口诀是电机功率因数按0.85，效率按0.9计算的。

　　3、型号、名称：见表1～表2表1本安计算机电缆型号电缆屏蔽结构及特征铜芯PVC绝缘铜芯PE绝缘铜芯XLPE绝缘IA-DJVPVIA-DJYPVIA-DJYJPV本安型、编织分对屏蔽（铜丝或镀锡丝）IA-DJVP2VIA-DJYP2VIA-DJYJP2V本安型、铜塑复合膜分对屏蔽I。

　　使用时，建议铠装层两端接地，内层屏蔽一端接地。性阻抗为100Ω的双绞屏蔽电缆STP-100Ω(forFF&PROFIBUS-PA)onepair18AWG则应用于FF、PROFIBUS-PA总线，常用18AWG导体。



　　MHVV32-4（4×1.5）矿用阻燃组合通信电缆用于煤矿竖井或斜井作通信线。MHPVP3V32-7（2×2×0.5＋1×0.5＋2×6.0）煤矿用阻燃组合通信电缆用于煤矿竖井或斜井作通信线。MHYVRPZ矿用聚乙烯绝缘铝/塑复合带屏蔽编织铠装聚氯乙烯护套通信软电缆用于斜井和平巷作通信线。

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 standards Q/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