具有抗酸碱、耐油性、防潮、防霉等特性。
BV软线用BVR表示，BV橡铜线用BX表示，BV橡铝用BLX表示，BV塑铝用BLV表示，耐火BV线用NH-BV表示，阻燃BV线用ZR-BV表示用途：普通绝缘电线，家用电线，是最常用的电线类型。
在一定条件下，也可用于传输2048kbit/s以上的数字信号。
适用于矿山、电厂、市内、近郊及局部地区。
特别适用于500KV及以下的发电厂，变电站控制线路。
采用塑料绝缘特种屏蔽控制电缆可抑制外界电、磁场的干扰。
RS485接口连接器采用DB-9的9芯插头座，与智能终端RS485接口采用DB-9（孔），与键盘连接的键盘接口RS485采用DB-9(针).RS-485通讯电缆2X0.5 2X0.75 2X1.0 2X1.5RS-485通讯电缆在一般场合采用双绞线就可以，但在要求比较高的环境下可以采用带屏蔽层的双绞。
This product is suitable for the communication bureau (station) and high-rise buildings and other power transmission, distribution systems used in the fire - retardant soft cable.
在一定条件下，也可用于传输2048kbit/s以上的数字信号。
适用于矿山、电厂、市内、近郊及局部地区。
特别适用于500KV及以下的发电厂，变电站控制线路。
采用塑料绝缘特种屏蔽控制电缆可抑制外界电、磁场的干扰。
在STEP7中打开要加密的程序块，点击菜单“文件/生成源文件（File/Generatesource）”，生成要加密保护的程序块的原代码文件。
关闭程序块，在项目管理器中打开“源文件（source）”,打开生成的源文件。
在程序块的声明部分，TITLE行下面的一行中输入“KNOW_HOW_PROTECT”。
（如图二所示）执行菜单命令“文件/保存（File/Save）”“文件/编译（File/Compile）”。
Specializing in the production for the telecommunications, computing facilities, instruments and meters connect with wire and cable series product -- -- -- -- -- - RVVP get coal RVV series of products: coal mine product safety sign - Ann symbol - Ann logo certification coal - coal Ann query -uery on a coal production license MA for authentication with mining products safety sign AnBiao syndrome, MA certificate, coal, flame retardant communication cable MHYV MHJYV MHYBV MHYA32 MHYYV MHYY32 flame retardant signal cable: MHYVR MHYBV MHYV32 MHYVR MHYVP MHYBV MHYVR32 coal mine fire retardant control cable: HYA22 zrc-hya zrc-hyat zrc-hyat23 HYA23 HYA23 HYA53 HYAT HYAT23 HYAT53 HYAC HJVV HPVV HPVV HPVV22 PYV azv hyvv 22 PYV22 control cable: KVV KVVVP kvvvvvv22 kvp2 vp2-22 vvvvvv22 vvvvvvvvv22 VVVVVVVVVVVVVVVVVR system
使用条件1、额定电压U0/U：0.6/1KV.2、 电缆导体长期允许最高温度为90度,短路时最高温度250度3、 安装敷设环境温度不低于0度,固定敷设时环境温度不低于-10度.4、 电缆允许最小弯曲半径不小于15D(D-电缆外径,mm)产品性能1、 BRYJVP12R-TK、ZRBPYJVP12R-。
DJYVP 聚乙烯绝缘对绞铜线编织总屏蔽聚氯乙烯护套计算机电缆 敷设室内、电缆沟、管道等要求静电屏蔽场合。
DJYPVP 聚乙烯绝缘对绞铜线编织分屏蔽及总屏蔽聚氯乙烯护套计算机电缆 敷设室内、电缆沟、管道等要求静电屏蔽场合。
全塑市话电缆主要电气性能：1.直流电阻:20℃0.4≤148?/km0.5≤95.0?/km0.6≤65.8?/km0.8≤36.6?/km2.绝缘电气强度：导体之间1min1kv不击穿导体与屏蔽1min3kv不击穿3.绝缘电阻：每根芯线与其余线芯接地充气电缆大于10000MΩ.km填充式电缆大于3。
目前，随着科技水平的不断提高，阻燃问题已由过去的卤素阻燃化，发展到低卤、无卤的阻燃化。
ZA-VV/ZB-VV/ZC-VVZA-VLV/ZB-VLV/ZC-VLV聚氯乙烯绝缘聚氯乙烯护套A(B、C)类阻燃电力电缆可敷设在对阻燃有要求的室内、隧道及管道中。
●电缆导体的允许长期最高工作温度为90℃。
●短路时（最长持续时间不超过5s）电缆导体的最高温度不超过250℃。
●电缆敷设时环境温度应不低于0℃。
●电缆弯曲半径：三芯电缆不小于电缆外径15倍；单芯电缆不小于电缆外径20倍。
在模拟电路中，一般可分为输入电路、中间电路、输出电路、电源电路、附属电路等几部分。
每一部分又可分解为几个基本的单元电路，而单元电路又是由各种元器件构成。
还可用画框图的方法对整机电路进行分解，将电路按功能分成若干单元电路，找出它们之间的联系，搞清每一单元内元器件的作用，及每一单元电路的组成，进而了解单元电路之间具有何种关系，从而对整体电路有完整的了解。
从静态到动态模拟电路中各种晶体管、集成电路是电路的核心，而它们在工作中需要建立静态工作点，才能实现对交流信号的放大作用。
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.
In flame retardant series products, has been successfully used in the oxygen isolation technology, not only 0.6/1 kv polyvinyl chloride insulated and crosslinked polyethylene insulation flame retardant power cable can achieve GB/T12666.5 "into A bunch of power cable test" in class A, and rated voltage up to and including 6/10 kv 6/10 kv crosslinked poly (flame retardant power cable can reach A high class A demand and A large margin. On the basis of high flame retardant and high flame retardant cross-linked insulation, a low-smoke halogen-free high-flame retardant oxygen insulation layer power cable was added, and its low-smoke halogen-free performance was in line with GB/T17651.1.2 and GB/ t In this way, the overall level of the company's cross-linked power cable is lower than the domestic status.
填充材料填充式电缆应在缆芯的间隙及缆芯与包带的间隙均匀而连续地填满符合规定的填充复合物。
缆芯包带缆芯包带用具有足够的隔热性能和机械强度的绝缘带重叠绕包。
以防导体绝缘在加屏幕和挤出挤套过程中粘接、变形和损伤。
BV line, BVR line, RVSP double stranded shielded cable, RVS double stranded cable, RVB parallel line, RV line RVSP Shielded twisted-pair cable RVSP (shielded twisted-pair cable, shielded cable, shielding twisted-pair electric (HYVP, RVVP) RVVP twisted-pair shielded cable < < shielded wire > > is shielded twisted-pair cable RVSP series on the basis of RVS coupled with a layer of copper wire shielding net, so the transmission loss, shielding the outside world better than RVS series, but because of the copper wire shielding network, its cost is also much higher than RVS series. Are often used to those who has a high re on the transmission. Technical indicators: polyvinyl chloride insulated cable long-term allowed working temperature over 70 ℃, the cable temperature under installation should not below 0 ℃, outer diameter (D) is less than 25 The allowable bending radius of mm cable shall not be less than 4 times the outer diameter of the cable. Diameter (D) of 25 mm and above of permissive bending radius of cable, not less than 6 times of cable diameter. The product description: this product is fit for ac rated voltage up to and including 450/750 power, electrical appliances, instruments, instrumentation, telecommunications e, lighting circuit and automatic device fixed installation, connection with a soft line, installed with a soft line and strong with shielded wire, according to the needs of use also can produce this kind of wire and cable fire retardant class (ZR), high flame retardant class (GZR), heat-resistant class (90 ℃, 105 ℃, 200 ℃, 250 ℃), low temperature resistant, nylon sheath, refractory (NH ), the company's main products: power cable control computer cable wire and cable wire and cable we specialized in wire and cable production and sales. Our products are high and low price, complete variety, there are all kinds of wire and cable, domestic orders can be delivery. We will with the high service to your satisfaction. If you have please telephone subscribers.