ZC-RV0.75平方电线格工农欢迎查看ZC-RV0.75平方电线格腼腆

ZC-RV0.75平方电线格工农欢迎查看ZC-RV0.75平方电线格腼腆

Tianjin cable pull branch factory in line with the principle of "customer is", with "honest, trustworthy, thoughtful" service concept won the trust of the extensive business. I company for the pre-sale, sale, after-sales service promise as follows: 1, in order to deepen the understanding of our company, we welcome you, experts to visit factory, our company will provide accommodation and convenient work. 2. Provide customers with product price information and product information. 3, in order to ensure the products can good, our company adopts domestic high materials, and according to the re of ISO 9001 guarantee system, to strictly control the material purchasing and acceptance, un material is strictly prohibited. 4. Our company strictly implements the system of self-inspection, mutual inspection and special inspection, and it is strictly prohibited to make any substandard semi-products run out of production. To organize the production according to the special technical re of customers and provide products to customers. 5. The wires and cables provided by our company guarantee brand-new, mature and reliable performance and meet the re of customers or customers in all aspects. 6. Our company guarantees that the products provided by us can operate reliably and reliably under normal installation, normal operation and conditions.



　　在使用RS485通讯时，对于特定的传输线路，主机(召测设备)到仪表的485口间的电缆长度与数据信号传输的波特率成反比；这个长度主要受信号的失真以及噪声的影响所影响。理论上RS485的传输距离能达到1200米，但实际应用中传输距离要小于1200米，具体长度受周围的环境影响。

　　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）RVVP RVVP 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。

This is the General Purpose Cable in the UL standard. The applicable safety standard is UL1581. The commercial and general test conditions are similar and are approved for use in Canada and the United States. There is no smoke concentration specification for general-purpose grade cables, which are generally only used for horizontal running of the same floor, but not for vertical wiring of the floor.



　　 特性阻抗为120Ω的双绞屏蔽电缆广泛用于RS485/422、CANBUS等总线，该系列电缆规格很多，请提供电缆的敷设环境、通信速率、大无中继传输距离等参数，我们将依照具体情况推荐适当的产品。

对电气伤害的防护检验人员在进行电梯的检验时，一定要做好全面的检查工作，要对使用到的一切电动工具进行排查，对有问题的设置必须要进行及时的处理，防止出现由于工具原因而产生的事故。如果目标对象是使用多年的电梯，这是就要重点关注其电缆是不是存在破损情况，尽量避免由漏电而引发的电击问题，同时使用相应的绝缘措施。如果电梯工作环境比较潮湿，那么工作人员就需要重点关注可能漏电的位置，防止由于潮湿环境而产生的电击伤害。

　　铜芯实芯聚烯烃绝缘双面涂塑铝带屏蔽聚乙烯护套市内通讯电缆用途：管道HYA（5×210×220×230×250×2100×2200×2300×2400×2500×2600×2700×2800×2900×21000×2对数)导体直径×.70.80.9铜芯实芯聚烯烃绝缘石油膏填充双面涂。

This process specification provides for rated voltage 450/750v, single core 1.5-500mm2 PVC insulated or polyolefin insulated flame-retardant fire resistant soft cable; And 0.6/1kv single core 4~500mm2, 2~5 cores 1.5~240mm2 polychlorinated insulated or polyolefin insulated flame-retardant fire resistant flexible cables process specifications, technical re, and acceptance rules. The main models of this process specification are: rated voltage 450/750v: za-rv; WDZA - RY, etc. Rated voltage 0.6/1kv: za-rvv, za-rvv22, wdza-ryy, wdza-ryy23, wdna-ryy, wdna-ryy23. 2? Usage characteristics, classification and nomenclature of cables 2.1? Service characteristics 2.1.1 cable rated operating voltage: 450/750v, 600/1000v. 2.1.3 temperature under installation should not below 0 ℃. 2.1.4 small bending radius of cables: unarmored cables: the flame retardant type is 6 times the outer diameter of cables, and the fire resistant type is 12 times the outer diameter of cables; The armored cable is 20 times the outer diameter of the cable. 2.2? The cable type consists of 5 parts: serial code, insulation, sheath material code, outer sheath and performance code.
Power frequency withstand voltage test: the power cable should undergo no breakdown at 3500V and 5min. Control cables shall withstand 3000V and shall not be punctured for 5min. Should be subjected to 15 ℃ low temperature winding test and low temperature impact test. After the test sample surface should be no perception of visible cracks.

　　产品说明：450/750V聚氯乙烯绝缘控制电缆，适用于直流和交流50HZ额定电压450/750V的发电站、发电厂、工厂、矿山、港口及石油化工企业等远距离操作的控制回路，作为电器仪表及自动化仪表装置之间的连接线，起着传运各种电能的作用，使整个电气系统安全，可靠运行。



　　低烟无卤电缆基本概述●其中卤素指针为：所有卤素的值≦50PPM(根据法规PREN14582)●燃烧后产生卤化氢气体的含量