DJYP2V(R)P2-22聚乙烯绝缘铜带绕包分屏总屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。
DJYVP3(R)-22聚乙烯绝缘铝塑复合带绕包总屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。
DJYP3V(R)22聚乙烯绝缘铝塑复合带绕包分屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。
聚乙烯绝缘综合护套钢带铠装聚氯乙烯护套铁路信号电缆PTA23PTYA22PTV23PTY22PTYAH23PZYA22PZY23PZY2230.8mm流电压1000V及以下传输音频信号及固定敷设的铁路信号和集团自动化装配的输移频自动闭塞及业务通话等音频信号。
4.成缆时把四根线芯排列为红，绿，蓝，白，排流线，排流线要和线芯一起绞合，千万不要纵放，成缆时不要加填充物，缆芯外用铝箔绕包，而后再绕包一层聚酯膜，在外有一层铜丝编织屏蔽（屏蔽铜丝不镀锡）。
5.护套：护前直径是8.2毫米，护后直径12毫米（11.7--12毫米之间），护套为阻燃蓝色护套。
Flame-retardant cable: the electric wire and cable are produced by external heating. In order to achieve the purpose of flame retardant, the three elements must be caused, namely, combustible gas, heat and oxygen. Therefore, generally USES is added in the sheath material containing halogen halide and metal oxide, from the perspective of flame retardant, that's very good, but, because of the halide is contained in these materials, in a lot of smoke and released when halogenated body, so, the low visibility when fire, bring a lot of personnel evacuation and fire obstruction, whereas people more for functioning suffocated to death.
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。
Busy表示功能块执行情况的输出，如果为高电平，表示功能块正在执行。
我们读取它的下降沿，来触发下一次操作。
Error是功能块的错误，可能你会有疑问，为什么通信错误不用这个信号呢？其实这个错误表示的范围更广,它表示功能块检测到错误就报警，有时候，我们通信正常，当我们读取的数据有问题，或是参数设置不正确时，也会报错，而我在程序中的错误仅仅是通信不上的错误，也就是，这个Error表示的范围更广泛，它更适合我们调试的时候监控。
--铜芯、聚烯烃绝缘、聚氯乙烯护套市内通信电缆。
使用温度均为-30度~60度。
HYA通信电缆，HYA22HYA23铠装通信电缆。
用途：实心绝缘填充型电缆适用于本地电信网的城市与乡镇电信线路，也适用于接入公用网的专用网线路。
This product is suitable for electronic computers with rated voltage of 500V or below, and cables for automatic connection, which have high re for protection. The k-type B low-density polymer with anti-oxidation property is adopted for the insulation of cable ground core.
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。
Precautions for installation of power cables: keep 2m distance when the cable is installed in parallel with the thermal pipe, and 0.5m should be maintained when crossing. The cable shall be installed at a distance of 0.5m in parallel or across other pipelines. When the cable is directly buried and installed, the buried depth of 1-35kv cable is not less than 0.7m. When 10KV and below cables are installed in parallel, the net distance between them shall not be less than 0.1m and 10-35kv shall not be less than 0.25m. The distance of cross installation is not less than 0.5m. Cable laying temperature is not lower than 0 ℃, bending radius: multi-core cable or 15 (D + D), a single cable 20 or more (D + D), (D for cable diameter, D) for the conductor diameter. 6 kv and above cable joint: (1) installing a cable terminal head, must be stripped semiconductor electric shielding layer, operation shall not damage the insulation, should avoid mark uneven situation, when necessary use sand paper to grind; The shield end should be flat and the graphite layer (carbon particles) should be cleaned. (2) plastic cable end copper tape screened and armor must be good grounding, the short circuit also follow this principle, avoid unbalanced three-phase run ShiGang armoured end produce inductive electromotive force, and even "lighter" and accidents such as burning sheath. It is required to use my tinplate to braid copper wire for grounding lead. When connecting with the cable copper belt, it should be welded with chromium-iron tin. The shield of three-phase copper tape should be connected with ground wire respectively. Note that the shielded ground wire and steel armor ground wire should be separately drawn out and insulated from each other. The position of the welded ground wire should be as low as possible. Basic re for cable terminals and intermediate joints: a. good conductor connection; B. The insulation is reliable, and it is recommended to use irradiated cross-linked heat-shrinkable silicone rubber insulation materials; C. good sealing; D. sufficient mechanical strength to meet various operating conditions. The end of the cable must be used to prevent erosion of water and other corrosive materials, so as to prevent breakdown due to the aging of the insulation layer caused by water trees. Crane or forklift should be used for the loading and unloading of cables. It is forbidden to run flat or lay flat. For installation of large cables, cable laying cart should be used to avoid external damage or abrasion caused by manual dragging. If the cable cannot be laid in time for some reason, it should be stored in a dry place to prevent sunlight from exploding and water entering the end of the cable. Note: the installation of wire and cable should be done by the installation personnel or full-time technical personnel familiar with the performance of wire and cable. If there are still unclear matters, please consult the relevant technical department or the technical department of our factory.
电缆导体长期工作温度应不超过70℃。
普通护套的电缆在环境温度不低于-5℃下敷设，耐塞护套为-10℃。
弯曲半径不低于电缆外径的15倍（敷设时），且适用于任何水平差的干扰。
产品介绍：一：产品特点及用途本产品适用于交流U0/U为300/500V电力、冶金、石化等行业以电子计算机为主的自动控制系统、计算机集散控制系统、自动化控制系统作控制线以及检测用仪器仪表用电子计算机电缆。
This product is suitable for electronic computers with rated voltage of 500V or below, and cables for automatic connection, which have high re for protection. The k-type B low-density polymer with anti-oxidation property is adopted for the insulation of cable ground core.
模块化编程实例我们使用AT89C52单片机，在编程软件keil环境下实施一个工程，来说明模块化编程具体操作的方法和步骤。
例子要实现的功能：和P1相连的8个LED灯每500ms亮灭交替闪烁，通过串口将数字0-9发送给单片机并显示在一个数码管上。
LED闪烁的时间使用定时器0中断方式来控制，T0每50ms溢出产生中断，定义一个计数器，每次T0中断就计数一次，累计计数10次，那么时长为500ms，作为LED闪烁时间间隔。
本产品是阻燃类产品。
二、执行标准：MT818.《煤矿用阻燃通信电缆》及企业标准Q/JG。
三、使用特性： 1、电缆长期工作温度：-30~60℃2、电缆敷设温度： 不低于0℃3、MHYV型弯曲半径不小于电缆直径的10倍。
RVV本产品适用于交流额定电压450/750V以下的家用电器小型电动工具、仪器仪表及动力照明等装置的连接。
工作温度：电缆长期允许工作温度不超过70℃。
KVVP 铜芯聚氯乙烯绝缘和护套编织屏蔽控制电缆。