具体区别方法：看网线截面，如果是铜色的话，就是铜丝，如为白色，则是用合金以次充好。
合金一般比较脆，容易断，导电性远不如铜丝，很容易在工程施工中造成问题。
线材一般那建议选择标准的485线，其为屏蔽双绞线，传输线不是像网线那样为单股的铜丝，而是多股铜丝绞在一起形成一根线，从而某根小铜丝断掉，也不会影响整个的使用。
ZR-KVV32阻燃聚氯乙烯绝缘，细钢丝铠装阻燃聚氯乙烯护套控制电缆敷设在室内、电缆沟中、管道、竖井内及地下，能承受一定的拉力作用。
注：根据用户需要可生产阻燃性（ZR）和无卤阻燃型（ZRA）控制电缆。
TRVV flexible cable for connection and control, widely used in dry or damp indoor, reciprocating freely bending and moving the chain system without forced tension. Such as machine tool processing equipment, logistics delivery system, port machinery, complete equipment installation engineering. Product features: according to customer requirements, color core or coding core. High quality PVC mix is adopted to reduce the requirement of cable outer diameter for installation space. The designed cycle bending life is 5 million times, and the actual use has exceeded 6 million times. Cable structure: conductor: using multi-strand fine ground and other fine twisted into a bundle conductor oxygen-free copper wire, conform to DIN VDE 0295 grade 6 insulation: high quality PVC mixture color: color line core or coding line core 3 core + yellow or green conductor sheathed: high quality PVC mixture color: black, grey, orange electrical characteristics: rated voltage U0 / U < 0.5 was 300/300 V p o. 5 was 300/500 V test voltage: 3000 V U meet DIN VDE 0281 part 2 temperature range: ℃ mobile installation: fixed installation: - 5 ℃ ~ + 70 ℃ and 30 ℃ ~ + 70 ℃ when continuous movement, the minimum bending radius: 7.5 x cable diameter
Our new preferential treatment, cable packaging, cable with wooden shaft, freight all free,
Product description: this product is suitable for ac rated voltage 450/750v and below power, household appliances, instruments, telecommunications equipment, lighting circuits and automation.
4.信号输出引脚：作用是将集成电路的输出信号引出，电路图中一般在输出引脚旁标注“OUT”字符。
其输出引脚的外电路特征是：通过电容、电阻、变压器等耦合元件与后续电路的输入端连接或者直接驱动扬声器、发光二极管、指示表头等负载，如下图所示：跟集成电路输入信号引脚类似，有些集成电路具有较多的信号输出引脚，如下图所示：除上述4种引脚外，集成电路引脚还有外接电阻、电容、电感、晶体等元器件的引脚，还有接自举、消振、负反馈、退藕等保证工作的引脚，还有接有静噪、控制等附件功能引脚。
Our professional production and sales: SYV video line, SYWV TV antenna, shielding wire, RVV RVVP sheathed wire, AVVR sheathed wire, AVVR multi-fiber signal lines, RVSP twisted-pair shielded wire, RVS RVS 2 * 2 * 2 * 1.0 RVS 1.5 2.5 AVR 0.12 square red, black, yellow, green AVR 0.5 square red, black, red, yellow AVR 0.3 square black AVVR 4 * 0.3 square white sheath line (blue, green, white and yellow) AVVR 2 * 0.5 square sheathed wire (red, white Black) RVVP 2*0.75 square black sheath... Emergency for wire and cable. RVS RVS 2 * 2 * 2 * 1.0 RVS 1.0 2.5 coaxial cable, elevator cable, super five types of twisted-pair cable, microphone cable, flame retardant, all kinds of cables, teng teng whole series of monitoring all series security cable, wire and cable branch teng whole series of weak current system. Security engineering, control engineering, weak current system engineering, integrated wiring, bank monitoring engineering, network engineering, fire engineering area, remote, building security monitoring, entrance guard visible interphone special audio and video signals such as wire and cable. (SYV video cable, shielding cable, RVV RVVP sheathed cable, signal cable, rf SYV, AVVR) BV plastic, BVR plastic soft copper wire, copper wire RVSP485 twisted-pair shielded cable, RVS twisted-pair cable, RVB parallel lines, the RV cord, KVVP control shielded cable, KVVR control soft cable, KVV control cables and manufacuring HYA communication cable, VV power cable, RVVP shielded wire (1 ~ 30 core) RVV sheathed wire (2 ~ 30 core) AVVR sheathed wire line (2 ~ 30 core) SYV video line (75-3, 5, 7, 9)
5．电缆允许弯曲半径：非铠装电缆最小为电缆外径的6倍铜带屏蔽或钢带铠装电缆最小为电缆外径的12倍氟塑料绝缘和护套电缆最小为电缆外径的8倍四：基本型号及名称(ZR192-)FF氟46(进口PFA)绝缘和护套控制电缆(ZR192-)FFP氟46(进口PFA)绝缘和护套铜丝编织屏蔽控制电缆(ZR192。
Spin cassette XF5-273 communication cable transfer box, adopting advanced technology at home and abroad, in accordance with the international advanced standard production in the eighty s of cable wiring equipment, for the city, the town of telecommunication network backbone cable and wiring cable transfer. Features: 1. The connection jumper adopts rotary clamp-type connection and is sealed with silica gel on the metal clip, because it is not only reliable and durable, but also easy to operate and repair without stripping. 2. The wiring terminals in the handover box shall be arranged in 25 pairs as a basic unit, consistent with the basic units of the local telephone cables and marked with Numbers on the terminals to facilitate construction and maintenance. 3. The structure, arrangement and installation dimensions of the wiring modules are exactly the same as those of 3M products and can be used for each other. 4. The box body is treated by electrostatic spraying, beautiful and generous, with clear lines, good anti-corrosion and waterproof performance and long service life. Main technical parameters: the environment temperature: - 40 ℃ ~ + 65 ℃ atmospheric pressure: 70 ~ 106 kpa relative humidity: 95% or less is random ends and insulation resistance between terminals and ground > 5 x 104 Μ Ω. When connecting any two ends and any terminals and grounding to 1000V ac, there shall be no breakdown or flying arc in 1min. Contact resistance between wire and terminal < 5 x lO - 3 Ω.
2、产品使用特性：电缆导体的长期允许工作温度应不超过70℃。
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。
例如：ZR-DJYPVZR-DJYPVP等（2）铠装型（钢带铠装）电缆需在型号右下角加代号“22”例如：DJYPV22DJYPVP22等。
ZR-VV32ZR-VLV32ZR-VV33ZR-VLV33ZR-VV42ZR-VLV42ZR-VV43ZR-VLV43阻燃聚氯乙烯绝缘阻燃聚氯乙烯/聚乙烯护套钢丝铠装动力电缆敷设在高落差地区，电缆能承受机械外力作用及相当的拉力。
kvv 2芯*0.75控制电缆 kvv 2芯*1.0控制电缆 kvv 2芯*1.5控制电缆 kvv 3芯*0.75控制电缆 kvv 4芯*0.75控制电缆 kvv 5芯*0.75控制电缆 kvv 6芯*0.75控制电缆 kvv 7芯*0.75控制电缆 kvv 8芯*0.75控制电缆 kvv 10芯。
其液体污染成分相对较少，也不能说0汞0镉。
如果家中有小孩，需注意；二是电池低温性能较差。
在零下10°C只能放出常温下15%左右电量。
12月份后，我国北方地区都进入冬季，黑龙江等北部地区的气温可达零下10℃，如若在家中的智能门锁或户外设备使用，极其容易出现设备无法正常工作的情况，如开锁动力不足，速度慢；北方家庭或有小孩的家庭选择需谨慎。
锂铁电池锂铁电池是一款是继“碳性电池”“碱性电池”后的一次性干电池。
缆芯结构：以25对为基本单位，25线对的基本单位也可由12对和13对2个子单位组成，50单位的超单位由二个12对和二个13对两个子单位组成，100对的超单位由四个25基本单位组成。
每个单位都采用规定色谱的扎带绕带100对及以上电缆加有1％的备用线对，但最多不超过10对。
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ZRKVVP铜芯聚氯乙烯绝缘聚氯乙烯护套编织屏蔽zrkvvp电缆450/7504-370.75-10敷设在室内，电缆沟、管道等要求屏蔽、阻燃的固定场合。
ZRKVVR铜芯聚氯乙烯绝缘聚氯乙烯护套编织zrkvvr电缆450/7504-370.75-10敷设在室内，有移动和阻燃要求的场合。