RVB电线二道施工队伍RVVG12X2.5电缆格巍峨
相关技术指标：参照IEC189和英国BS5308标准二、产品代号1、代号DJ-（系列代号）电子计算机用屏蔽电缆Y-（绝缘代号）高压聚乙烯F-（绝缘代号）氟塑料V-（护套代号）聚氯乙烯R-表示多股软线芯P-（屏蔽代号）铜网屏蔽P1镀锡铜网屏蔽P2铜带屏蔽P3铝塑复合膜屏蔽3、产品型号规格举例例1：订购。
WDZA-YJY/WDZB-YJY/WDZC-YJYWDZA-YJLY/WDZB-YJLY/WDZC-YJLY交联聚乙烯绝缘聚烯烃护套A(B、C)类阻燃电力电缆可敷设在对阻燃且无卤低烟有要求的室内、隧道及管道中。
ˎ̥NH-KFV电缆，KFVR电缆优势说明：详细说明:NH-KFV电缆，KFVR电缆矿用电缆是煤矿用电缆的简称，矿用电缆均为阻燃电缆，都应经过安标国家矿用产品安全标志中心颁发矿用产品安全标志证书。U型（M型）煤矿用橡套电缆本产品按GB/T《矿用橡套软电缆》、MT《煤矿用阻燃电缆》生产，同时还可根据用户需要按国际电工委员会推荐标准IEC、英国标准、德国标准及美国标准生产。
卤素含量测定应不大于100mg/g。其它性能要求同GB9330的规定。。。。。。。其线对的绝缘色谱及序号分别是以白、红、黑、黄、紫(a线)五种颜色作为领示色，蓝、桔、绿、棕、灰(b线)五种颜色作为循环色循环而成。
MHYV(HUW)聚氯乙烯绝缘阻燃聚氯乙烯护套矿用电缆0.5-0.8mm2－100对矿井中、阻燃场合MHYV(HUYV)聚氯乙烯绝缘阻燃聚氯乙烯护套矿用电缆MHYAV(HUYAV)聚乙烯绝缘铝塑护层阻燃聚氯乙烯护套通信电缆MHVV22(HUVV22)聚氯乙烯绝缘阻燃聚氯乙。
在全部停电或部分停电的电气线路（设备）上工作时，必须将设备（线路）断开电源，并对可能送电的部分及设备（线路），采取防止突然串电的措施，必要时应作短路线保护。检修电气设备（线路）时，应先将电源切断，（拉断刀闸，取下保险）把配电箱锁好，并挂上“有人工作，禁止合闸”警示牌，或派专人看护。所有绝缘检验工具，应妥善保管，严禁他用，存放在干燥、清洁的工具柜内，并按规定进行定期检查、校验，使用前，必须先检查是否良好后，方可使用。
RS485 cable product description: Characteristic impedance of 100 ohms, conductor is 2 * 2 * 24 awg multi-strand tin electrolytic copper wire twisted and become, insulating sheath like installation of design and color recognition, overall **** aluminum foil/polyester belt shielding, additional independent stranded tinned copper wire grounding conductor, industrial gray PVC outer sheath, the standard 1 to RS - 485 communication cable, the characteristic impedance of 120 ohms, conductor is 2 * 24 awg stranded tinned copper wire, PE insulation, covered with aluminum foil/polyester composite with **** + 90% tin plated copper wire cover, double shielding with independent grounding conductor is RS - 485 communication cable.
DJVP3V(R)22聚氯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。DJVP3V(R)P3-22聚氯乙烯绝缘铝塑复合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。
2.485信号线可以使用平行线作为布线，也可以使用非屏蔽线作为布线。由于485信号是利用差模传输的，即由485+与485-的电压差来作为信号传输。如果外部有一个干扰源对其进行干扰，使用双绞线进行485信号传输的时候，由于其双绞，干扰对于485+，485-的干扰效果都是一样的，那电压差依然是不变的，对于485信号的干扰缩到了最小。
我国国家标准GB12666.6（等同IEC331）将耐火试验分A、B两种级别，A级火焰温度950~1000℃，持续供火时间90min，B级火焰温度750~800℃，持续供火时间90min，整个试验期间，试样应承受产品规定的额定电压值。
VVZ;特点：交换机动力电缆传输专用电缆，具有柔软、易弯曲、阻燃等优点。VV-不阻燃，硬动力电缆，不易弯曲，适用于固定敷设。ZR-VV-阻燃，硬动力电缆，不易弯曲，适用于固定敷设。阻燃通信电缆用途：主要用于传输音频、150kHZ及以下的模拟信号和2048kbit/s及以下的数字信号。
Flame retardant grade: B for fire temperature: 815 ℃ or higher for fire time: 40 min into a bundle of cable laying nonmetallic material volume: acuity 3.5 litres/m carbonized height: 2.5 meters or less self-extinguishing time: 1 h or less;
如果灯泡发亮，则说明串联的U、V两相绕组是正向串联。即一相绕组的首端接另一相绕组的尾端，如-7所示。如果灯泡不亮，则说明是反向串联，如-7所示。这时，可将一相绕组的首尾端对调再试。判断出前两相的首尾端后，将其中一相再与第三相串联，用同样方法实验。最后，可以判断出三相绕组各自的首尾端。万用表法。将三相绕组接成星形，从一相绕组接入36V交流电源，在另外两相绕组的一端接入置于10V交流电压挡的万用表，按-8和所示各接一次。
可以采用任何一种方式敷设，更适用于岩石地区的直埋敷设。在一定条件下，也可用于传输2048kbit/s以上的数字信号。适用于市内、近郊及局部地区架空或管道敷设线路中，也可直埋。铠装通信电缆型号HYA53WDZ-HYA53ZRC-HYA53。
MHY32(PUYV39、PUYV39-1) 矿用聚乙烯绝缘阻燃聚氯乙烯护套单层钢丝铠装井筒信号电缆 用于斜井或竖井中作主信号电缆MHYVRP(PUYVRP) 矿用聚乙烯绝缘阻燃聚氯乙烯护套铜丝编织屏蔽信号软电缆用于井下平巷或斜巷作信号电缆MHYVP(PUYVP) 矿用聚乙烯绝缘阻。
Purpose: the self-supporting non-filled cable is suitable for the urban and township telecommunication lines of local telecommunication network, and also for the special network lines connecting to the public network. It is economical and practical to use the same outer protective layer for hoisting line and cable. The mechanical and electrical properties of the cable remain unchanged under conditions of 30~C - 60~C. Structure: wire: annealed bare copper wire, copper wire diameter is 0. 4, 0. 50, 0. 60, 0. 70, 0. 80, 0. 90 mm. Insulating material: high density polyethylene or ethylene-propylene copolymer. The color of the insulated wire is in accordance with the full chromatographic standard. Pair of insulated wires: two different colored insulated wires are twisted in pairs according to different pitch and are identified by a specified chromatographic combination. Core structure: with 25 pairs as the basic unit, more than 25 pairs of cables are assembled according to the unit, each unit is wired with the unit of specified chromatogram to identify different units. 100 pairs or more of cables plus 1% of the reserve pair. Core tape: wrap with a polygrease film tape. Shielding: the two sides are overlapped with or without corrugated metal strip, beyond the cable core of the longitudinal capsule. The plastic film coated on the surface of the shielding belt and the bonding sheath of the protective layer: black low density polyethylene. Hoisting line: the hoisting line is 7 strands of galvanized steel strand, nominal outside diameter is 6. 3 and 4 mm. The tensile strength of two types of 75mm is not less than 3000kg and 1800kg respectively. The suspension wire is coated with thermoplastic paint to prevent the steel wire from corrosion. Identification and length marking
矿用地面电缆MHYV|矿用地上线MHYV煤矿专用电缆|井下电缆|矿山电缆|井筒电缆|防爆线|矿用设备专用电缆|井下信号电缆|统称矿用通信电缆MHYAV(5×210×220×230×250×280×2100×2对数二、 电缆型号及名称 MHYV 对)煤矿用聚乙烯绝缘聚氯乙烯护套通信电缆 M。