说明：a.阻燃型（氧指数大于30）电缆需在型号前加代号“ZR"。
例如：ZR-DJYPV；ZR-DJYPVP等。
b.铠装型（钢带铠装）电缆需在型号右下角加代号“22"。
例如：DJYPV22；DJYPVP22等。
(如计量测试、信号显示、自测遥测、计算机联网、报警等)产品型号：应用标准：GB9330ZR-KVV阻燃型聚氯乙烯绝缘聚氯乙烯护套控制硬电缆ZR-KVVR阻燃型聚氯乙烯绝缘聚氯乙烯护套控制软电缆ZR-KVVP阻燃型聚氯乙烯绝缘聚氯乙烯护套屏蔽控制硬电缆ZR-KVVPR阻燃型聚氯乙烯绝缘聚氯乙烯护套屏蔽。
Tianjin cable factory first branch factory in line with the principle of "customer is god", with "honest and trustworthy, warm and thoughtful" service concept won the trust of the vast number of merchants. My company to the pre-sale, sale, after-sales service to make the following commitments: 1: in order to deepen the understanding of our company, we warmly welcome you leaders, experts to visit factory, our company will provide accommodation and convenient work. 2. Provide users with product price information and product quality information. 3, in order to guarantee the good performance of products, our company adopts domestic high quality materials, and, according to the requirements of ISO 9001 quality assurance system of strict control of material purchasing and acceptance of the unqualified material is strictly prohibited. 4. Our company strictly implements the system of self-inspection, mutual inspection and special inspection. Unqualified semi-products are strictly prohibited from entering the next process, and unqualified products are not allowed to leave the factory. Organize the production strictly according to the standard or the special technical requirements of the customer, and provide **** qualified products to the customer. 5. The electric wires and cables provided by our company guarantee brand-new, mature and reliable performance and meet the standards or customer requirements in all aspects. 6. Our company guarantees that the products provided can operate reliably and safely under the correct installation, normal operation and maintenance.
HJVVHJVVP0.4-0.8mm5芯-200芯用于配线架至交换机或交换机内部各级机器间连接等（包括农村电话局用）。
4、HPVV100*2*0.5配线电缆使用特性：电缆敷设环境温度不低于-5℃。
电缆的弯曲半径不得低于电缆外经的20倍。
1.5综合护套铁路信号电缆的理想屏蔽系数≤0.8；铝护套铁路信号电缆的理想屏蔽系数≤0.32型号、名称及规格-铁路信号电缆PTYAT22型号名称敷设范围规格（芯）-铁路信号电缆PTYAT22PTY23聚乙烯绝缘钢带铠装聚乙烯外护套铁路信号电缆PZYA22聚乙烯绝缘综合护套钢带铠装聚氯乙烯外护套铁路信。
专业的说那就是要做到"两懂两会一证""两懂"是指一懂规则（安全用电规则），二懂原理（会看图）；"两会"是指一会安装（照图操作、施工），二会维修（分析、综合解决问题的能力）；"一证"是取得电工资格证。
科学技术在飞速发展，我们不能停留在原来的水平上，应与时俱进跟上形势，不断学习新知识、新工艺、新内容。
电工技术是一门综合性的技术工种，它涉及范围很广，包括外线电工、内线电工、值班运行电工、维修电工等。
详细内容分为直流电路、交流电路、磁路、变压器、电机、电气控制技术、机床控制维修、电气测量、高压和低压控制、电子技术等。
电缆型号、名称、规格及用途型号名称规格用途MHYV（PUYV）聚乙烯绝缘阻燃聚氯乙烯护套矿用信号电缆2-57/0.28用于平巷、斜巷及机电耍硐室MHJYV（PUJYV）聚乙烯绝缘阻燃聚氯乙烯护套加强矿用通讯电缆2-57/0.28(三钢四铜)用于平巷、斜巷、有较好的抗拉强度MHYVP煤矿用聚乙烯绝缘编。
1. Product implementation standard: gb9330-88 (refer to IEC227, better voltage resistance than IEC227), ga306-2001 (flame retardant type). 2. Purpose: this product is applicable to control, signal protection and measuring lines with rated voltage of 450/750v and below under dc and ac 50hz-60hz. 3, product specifications and scope: product specifications range using occasions KYV, KYVP, KYVP2 0.5 - was 10, 2-61 core is the product high insulation resistance, waterproof properties is strong, good cold resistance, suitable for weak current control system or strong electromagnetic interference zone. KYV20,KYV22 0.5-10mm2,4-61 core FYV30,KYV32 0.5-10mm2,7-61 core KYVR 0.5-6mm2,2-61 core KYVRP 0.5-4mm2,2-61 core KYVP22, kyvp2-22 1.5-10mm2,4-61 core note: model pre-flame retardant is suitable for fire retardant environment. 4, using features: cable temperature under installation should not below 0 ℃, the cable conductor long-term allowed working temperature is 70 ℃. The allowable bending radius of the cable: for the armored cable, it should not be less than 6 times the outer diameter of the cable. For the cable with armored or copper belt shielding structure, it shall be no less than 12 times the outer diameter of the cable. For soft cable with shield layer structure, it should be no less than 6 times the outer diameter of the cable.
Type KVRP, P1, P3, zr-kvrp, P1, P3 type 450/750v copper core polyvinyl chloride insulated sheathed cable applicable scope: this product is suitable for the rated voltage 450/750v and below transmission and distribution lines. Execution standard: GB9330-1988 and Q/SCT - J02.04-1999 using features: the highest rated temperature of the cable conductor is: PVC insulated cable is 70 ℃, cross-linked polyethylene insulated cable is 90 ℃. Cable laying the environment temperature is not lower than 0 ℃. The maximum bending radius of cable laying is: for unarmored cable, it should not be less than 6 times of the outer diameter of the cable, and the cable with shield layer or copper belt should not be less than 12 times of the outer diameter of the cable.
XF5-273型旋卡式通信电缆交接箱|卡接式交接箱30对电话交接箱、50对电话交接箱、100对电话交接箱、150对电话交接箱、200对电话交接箱、300对电话交接箱、400对电话交接箱、500对电话交接箱 50对100对200对300对400对600对1200对2400对通信电缆交接箱HPVV5＊。
（1）、低烟无卤电缆的阻燃等级根据GB/T18380.3-2002规定的试验条件,低烟无卤电缆的阻燃等级分为A、B、C、D四个等级表1阻燃等级供火温度供火时间成束敷设电缆的非金属材料体积炭化高度自熄时间A≥815℃40min≥7升/米≤2.5米≤1hB≥815℃40min≥。
In order to improve the quality of the cable, we choose high electrical insulation materials production, such as special cable 1.8/3 kv frequency conversion motor, with 10 kv crosslinked insulating materials, special cable adopts frequency conversion motor of 6/10 kv, 35 kv crosslinking insulation materials, conductive shielding, insulation shield and insulation adopts the imported materials. In the process of production, we put special emphasis on the purification of raw materials, shielding closely with extruded insulation materials, control the uniformity of the insulation eccentricity and insulation outside diameter, which can reduce the interface effect, improve the electrical cable properties.
S7-1200，采集的是0-5V的模拟量信号，对应的压力是-5WC到5WC，因为是第一次使用，而我在测试的过程中并没有发现问题，贴出来，如果大家发现错误，希望指导下。
上面的图，是我最早使用的模拟量采集方式，电流信号是4到20mA的，转换的频率是0-50HZ的，而这里对应的数值是6400到32000，后面有频率转换，我就没有贴出来了。
这两个是欧姆龙CJ1M模拟量采集的图片，如果看到熟悉，可能会发现我之前写的一个PID调节中，有用到这个图，因为PID调节，是肯定需要模拟量采集的，我就又把这个图放在这里了，欧姆龙模拟量采集需要设置的地方会多点，在硬件模块中都需要设置好，当然三个PLC中涉及到接线也是，这里都要看下原本说明书中的介绍接线的内容，不要将线接错，先写这些吧，本来表达能力就不行，有点啰嗦了，希望大家见谅啊。
Flame-retardant Cables: ibec60332-3 / bs4066-3 flame-retardant grades (BunchedWires or Cables vertical Flame On BunchedWires/Cables) this is a beam cable. According to the test regulations, the 3.5m long cable samples are fixed with iron wire on the trapezoid frame, and the number of samples is determined according to the non-metallic materials required for different classification. The sample is hung vertically on the back wall of the furnace and air is introduced into the furnace through the inlet on the bottom plate. At 750 ℃ flame propane plane and the sample, the sample in the compulsory blowing (5 m3 / min air emissions, wind speed 0.9 m/s), must be in vertical combustion is not up to 20 minutes, cable within 2.5 meters flame spread out on its own. IEC60332 is divided into A, B, C and D to evaluate the flame retardant performance.
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)
基带电缆仅仅用于数字传输，数据率可达10Mbps。
同轴电缆以硬铜线为芯，外包一层绝缘材料。
这层绝缘材料用密织的网状导体环绕，网外又覆盖一层保护性材料。
有两种广泛使用的同轴电缆。
一种是50欧姆电缆，用于数字传输，由于多用于基带传输，也叫基带同轴电缆；另一种是75欧姆电缆，用于模拟传输，即宽带同轴电缆。
Temperature (25 ℃) 20 to 30 to 35 40 to 45