MKVVRP10X0.5矿用软芯控制电缆格新晃现货供应RV1X10平方格纯青
通俗地讲,电线万一失火,能够把燃烧限制在局部范围内,不产生蔓延,保住其他的各种设备,避免造成更大的损失。阻燃电缆概述阻燃电缆的含义:在规定试验条件下,试样被燃烧,在撤去火源后,火焰在试样上的蔓延仅在限定范围内并且自行熄灭的特性,即具有阻止或延缓火焰发生或蔓延的能力。
2, product characteristics: cable ac rated voltage up to 500 v, the long-term working temperature of cable core shall not exceed 70 ℃. Cable allows bending clearance diameter should not less than 6 times of cable diameter, temperature under installation should not below 0 ℃.
。。。。。。电缆的长期允许工作温度≤90℃,电缆导体短路温度≤250℃,持续时间≤5S,电缆敷设时温度不得低于-20℃,电缆的允许弯曲半径≥15倍电缆外径。电缆的长期允许工作温度≤90℃,电缆导体短路温度≤250℃,持续时间≤5S,电缆敷设时温度不得低于-20℃,电缆的允许弯曲半径≥15倍电缆外径。
四、型号、名称型号名 称 PVV 聚氯乙烯绝缘聚氯乙烯护套信号电缆 PYV 聚乙烯绝缘聚氯乙烯护套信号电缆 PVV22 聚氯乙烯绝。
NHA—KVV22适用范围:同NHB—KVV22,用于要求耐火较为苛刻的场所。2、根据协议允许任何长度交货。 一、生产执行标准 采用企业标准。 ③无卤低烟阻燃聚烯烃绝缘和护套:90℃和125℃两种。
,一般在长期使用的情况下,电机原本的星形接法**不要改为三角形接法,改为三角形电压必定升高(相电压升高约1.73倍),长时间会烧坏电机。4,一般长期使用情况下,电机原本的三角形△接法**不要改为星形接法,改为星形电压必定降低,带额定负载时属于过载现象,严重时会烧坏电机。5,星三角降压启动时,改变接线方式是因为启动时间很短,但是电流却下降到原来的1/3很明显。三相异步电动机出厂时候一般都已经接好绕组或者端盖上有接线电路图,严格使用。
HYA53 / HYAT53 (rat bite/buried) is mainly used to transmit audio, 15 duct | communication cable | (pipe/overhead) HYAC (overhead) HYAT (waterproof) 0 KHZ and analog signals and 2048 kbit/s and under the following digital signal. Under certain conditions, it can also be used to transmit digital signals over 2048kbit/s. Suitable for overhead or pipeline laying in city, suburb and local area, or directly buried. Main product model manufacuring HYA, HYAC, HYAT, HYAT53, HYA531, manufacuring HYA (pipe/overhead) inner conductor wire diameter (mm) : 0.40, 0.50, 0.60, 0.70, 0.80, 0.90, logarithmic (on) : 5-3000-2, HYAC (overhead) inner conductor wire diameter (mm) : Logarithms (right) : 10-300 3, inner conductor diameter (mm) of HYAT (waterproof) : 0.40, 0.50, 0.60, 0.63, 0.70, 0.80, 0.90 (right) : Inner conductor line diameter (mm) : 0.40, 0.50, 0.60, 0.70, 0.80, 0.90 logarithms (yes) : HYAHYAT53 10-600
可采用任何一种方式敷设,更适于岩石地区的敷设。HYAT23铠装通信电缆用途:铠装通信电缆机械保护层可以加到任何结构的电缆上,以增加电缆的机械强度,提高防侵蚀能力,是为易受机械破坏及易受侵蚀的地区而设计的电缆。
MHYVRP煤矿用聚乙烯绝缘编织屏蔽聚氯乙烯护套通信软电缆。MHY32煤矿用聚乙烯绝缘钢丝铠装聚氯乙烯护套通信电缆。MHVV(HUVV)矿用聚氯乙烯绝缘阻燃聚氯乙烯护套电缆用于平巷、斜巷及机电硐室。
KVVP聚氯乙烯绝缘,聚氯乙烯护套铜丝编织屏蔽控制电缆敷设在室内、电缆沟中、管道内及地下,具有防干扰能力。KVVP聚氯乙烯绝缘,聚氯乙烯护套软控制电缆敷设在室内移动要求柔软等场合。KVVRP聚氯乙烯绝缘,聚氯乙烯护套铜丝编织屏蔽软控制电缆同上具有防干扰能力。
最低环境温度聚氯乙烯护套固定敷设-40℃非固定敷设-15℃电缆安装敷设温度不低于0℃计算机屏蔽电缆型号:(型号加R表示软导体)DJVVP聚氯乙烯绝缘铜丝编织总屏蔽聚氯乙烯护套计算机电缆DJVPV聚氯乙烯绝缘铜丝编织分屏蔽聚氯乙烯护套计算机电缆DJVPVP聚氯乙烯绝缘铜丝编织分屏总屏聚氯乙烯护套计算机。
吊线和电缆用同一外护层,经济实用,安装敷设方便。在一30~C一60~C的环境条件下,自承式电缆的机械和电气性能保持不变。结构:导线:退火裸铜线,铜线直径为0.32,0.4,0.50,0.60,0.70,0.80,0.90mm。
在电工的维修作业中,电路图无论什么时候都起到至关重要的作用,可以毫不夸张地说电路原理图是电工原理的基础,一句话说的好:会看电路图的电工不一定是个好电工,但是不会看电路图的电工一定不是一个合格的电工。电路图是电工的基础入门知识,相信每一个电工师傅都接触过电路图,电路图是电工的必修课程,如果不懂看电路图,那么真感觉是个“假电工”。不管是宏观的电力拖动线路,电子电路,电路板,plc,仪表组态等等,电路图都是基础,这些都是在电路图的基础上发展而来的,电路是必修课程,那么怎么样看懂电路图呢?理论知识积累。
RS485通讯线结构:1)导体:多股绞合镀锡铜网线,每股7支,每支导体线径为0.30mm,共四股导体,外径:0.91+/-0.03mm2)绝缘:实芯PE绝缘,外径:mm3)第一屏蔽:铝箔屏蔽4)引流线:多股绞合镀锡铜网线,每股7支,每支导体线径为0.30mm,共一股,外径:0.。
Armoured communication cable armoring cable type: HYA53, HYAT53, HYA23 HYAT23, HYV22, HYA22 (rat, buried) armoring communication cable USES: armoured communication cable mechanical protective layer can be appended to the structure of the cable, with the mechanical strength of the cable, antierosion capability, is vulnerable to mechanical and designed and vulnerable to erosion area telephone cable. Any kind of laying can be adopted, which is more suitable for direct buried laying in rock area. Armored communication cable structure: 1. Basic cable: any filled and unfilled cable with single sheath or double sheath structure. 2. Armored communication cable mechanical protection layer: type 53 adopts 0.15mm thick corrugated steel belt, which is longitudinal wrapped on the basic cable and overlapped on both sides. The surface of the steel belt is coated with plastic to prevent corrosion and water intrusion. The type 23,22 has similar performance with double steel band wrapping. 3. Armored communication cable sheath: black high-molecular weight low-density polyurethane or polyurethane sheath. Sheath thickness may depend on the basic cable outer diameter. 5. The marking contents of armored communication cables include: wire diameter, number of wire pairs, cable model, length, manufacturer name and year of manufacture. 6. Armored communication cable electrical characteristics: the cable meets all the electrical re of the basic cable. 6. Cable length: mechanically protected cable is made according to the length of the corresponding basic cable
主要技术参数:环境温度:-40℃~+65℃大气压力:70~106KPa相对温度:≤95%任意两端及任一端子与接地之间的绝缘电阻>5×104ΜΩ。任意两端及任一端子与接地之间在接通1000V交流时,1min应无击穿或飞弧现象。
二、电缆的型号、名称和用途序号型号名称使用范围1VVVLVVYVLY聚氯乙烯绝缘聚氯乙烯/聚乙烯护套电力电缆敷设在室内、隧道及管道中,电缆不能承受机械外力作用VV22VLV22VV23VLV23聚氯乙烯绝缘聚氯乙烯/聚乙烯护套钢带铠装电力电缆敷设在室内、隧道内直埋土壤,电缆能承受机。