施甸矿用橡套电缆MZ-秀气

施甸矿用橡套电缆MZ-秀气
　　ZR-BPFFPP2氟46绝缘和护套铜丝编织铜带绕包屏蔽耐高温变频电力电缆ZR-BPFFP3氟46绝缘和护套铝聚酯复合膜绕包屏蔽耐高温变频电力电缆。ZR-BPVVP聚氯乙烯绝缘和护套铜丝编织屏蔽变频电力电缆。
　　BPYJVP12-TK铜芯交联聚乙烯绝缘聚氯乙烯护套铜带绕包铜丝编织双重屏蔽变频器用回路电缆。ZRBPYJVP12-TK铜芯交联聚乙烯绝缘阻燃聚氯乙烯护套铜带绕包铜丝编织双重屏蔽变频器用回路电缆。BPYJVPX12R-TK铜芯交联聚乙烯绝缘聚氯乙烯护套铜带绕包镀锡铜丝编织双重屏蔽变频器用回路电缆。
由于含卤阻燃电缆（包括阻燃电缆、低卤低烟阻燃电缆）在燃烧时会释放具有腐蚀性的卤酸气体，大大阻碍消防工作从而耽误救火时间并加剧火势蔓延，因此在人口密度较高的公众场所应尽量设计选用无卤低烟阻燃电缆。在人口密度较小的作业区可以选用任意一种阻燃电缆。阻燃电缆分为A、B、C3类，其中A类阻燃电缆性能较B、C类更优，价格也贵。设计人员提供订货清册时应标明阻燃电缆的类别。从外观上无法区分阻燃电缆的A、B、C类别，只有靠制造厂家进行供货保证，因此在设计选用时应慎重选择电缆制造厂家。施甸矿用橡套电缆MZ-秀气

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.



　　如数控机床、电子设备、五金冲压、木材石材机械、玻璃与门窗机械、注塑机、机械(人)手、建筑机械、重型机械厂、汽车制造、起重运输设备、自动化仓库、码头等室内外环境需要的场所。控制、监控回路及保护线路，电器仪表、配电装置的信号传输、控制与测量的使用。

低速过电流保护环节：当发电机转速下降或因其他原因使磁场电流超过规定值时，Jl动作，将触发器电源短路，可控硅立即关闭，发电机失压，避免可控硅过电流而损坏。上面电路图虽然老，但控制原理与现在普通型发电机这一个工作原理。你所说发电机电压低，则说明励磁电流不够，而这个问题主要出在比技环节。这时你可将同步变压器B1的220Ⅴ从发电机线路脱开，另外用市电220Ⅴ电源输到B1，看同步变压器的三个低压绕组的交流电压是否达到图上标注的值，AC2.5×2AC70VAC32Ⅴ。

无卤低烟阻燃电缆和含卤阻燃电缆相比，有低腐蚀、低烟的优点，但电性能及机械性能明显降低，所以在进行电缆敷设时，无卤低烟阻燃电缆应较含卤阻燃电缆有更大的弯曲半径。在进行电缆敷设设计时，不宜将非阻燃电缆和阻燃电缆并列敷设，不宜将不同阻燃类别的阻燃电缆并列敷设。

阻燃电缆标准：电缆涉及火灾安全的主要技术指标是CO2电缆的阻燃性、烟雾的密度和气体的有毒性。美国防火标准较关注前两个问题，但是欧洲和美国对火灾安全有着完全不同的观点。

美国传统的概念认为：火灾的根源在于一氧化碳（CO）毒气的产生以及其后的燃烧过程中CO转化为CO2的热释放，因此，控制燃烧过程中的热释放量可减少火灾的危害。欧洲传统以来深信：在燃烧中产生的卤酸（HCL）释放量、气体腐蚀性、烟雾浓度及气体毒性是决定人们能否安全脱离火灾现场的主要因素。

Fire control cable USES: this product has high fire-resistant ability, can withstand direct flame combustion and in a certain period of time not short circuit or open circuit fault occur, when the fire broke out, to put out the fire and reduce the loss. It is suitable for electric devices and control systems in places with high fire risk and fire control importance. Product standard: Q/ 320831nhn004-1996 25 ℃ ~ + 105 ℃ and 60 ℃ ~ + 200 ℃. Two kinds of refractory characteristics: comply with GB12666.6-90: A class: the flame temperature of 950 ℃ to 1000 ℃ class B: flame temperature 750 ℃ to 800 ℃ the burning time of 90 min burning time: 90 min additional voltage 500 v 3 additional voltage 500 v 3 A current a. flame retardant properties: Comply with class A of gb12666.5-90 test • minimum allowable bending radius of cable: The armoured not less than 12 times the cable diameter models: main material PVC insulated PVC sheathed low smoke low halogen low smoke zero halogen sheath insulation fluorine plastic insulation Low smoke low halogen sheath fluorine plastic insulation Low smoke zero halogen sheath fluorine plastic insulation fluorine plastic sheath Single strand conductors without shielding NH - KVV NH - KV D Y D NH - KFV DNH KFY D NH - KFF single strands of copper conductor shielding NH - KVVP NH - KV D Y D P NH - KFV D P NH - KFY D P NH - KFFP single stranded conductor copper tape screened NH - KVVP 2 NH - KV D Y D P 2 NH - KFV D P 2 NH - KFY D P 2 NH - KFFP 2 soft conductor shielding NH - no KVVR NH - KV D Y D R NH - KFV NH - KFY D D R R NH - KFFR soft copper conductor shielding NH - KVVRPNH - KV D Y D RP NH - RP NH - KFY KFV D D RP NH - KFFRP no shielding NH - steel tape armoured KVV NH - 22 KV D Y D - 22 NH - KFV NH - KFY D - D - 22 of 22 NH - KFF 22 note: PVC insulation structure by using the 105 ℃ resistance fuel used for refractory compound insulation structure. Specifications: Section 0.5 0.75 1.0 1.5 2.5 4 June 15 mm 2 above and below 2.5 mm 2 class A 1/0.80 1/1.13 1/1.13 1/1.38 1/1.38 1/1.13 1/1.13 PVC fluorine plastic sheath PVC fluorine plastic sheath class B 19/0.1 19/0.2 19/0.2 19/0.3 19/0.3 19/0.2 19/0.2 4-2-2-61 core 37 core 27 Core 4-14 core technical indicators: Performance can project technical indicators conductor dc resistance (20 ℃) or less Ω/km nominal section 0.5 0.75 1.0 1.5 2.5 4 6 class A 36.0 24.5 18.1 12.1 7.41 4.61 3.08 39.0 26.0 26.0 13.3 7.98 4.95 19.5 B test voltage 3000 V / 5 min not breakdown insulation resistance M Ω 1000 km or more refractory characteristics through the class A, Class B (according to gb12666.5-90 test) passed class A (according to gb12666.5-90 test).

　　它的含卤量约为含卤阻燃电缆的1/3左右。发烟量也接近于公认的“低烟”水平。根据《电线电缆燃烧试验方法》的规定，采用成束燃烧试验方法考核的阻燃电缆分为A、B、C3类，其中A类电缆试验条件苛刻，性能较B、C类更优，价格也贵。



1. Mine control cable execution: mt818-1999? 2. Mine flame retardant control cables: this product is applicable to ac rated voltage u0/u of 450/750v. And the following control and control circuits and the protection lines and the connection lines of the electrical instruments in the distribution e ? 3. Model specifications and scope of mine control cables:? Model of control cable for mine? Specification range? Using MKVV MKVVP, MKVVP2? 0.5 - was 10, 2-61 core? Suitable for weak current control or strong electromagnetic field area mkvvvv22, mkvvvvv20? 0.5 - was 10, 4-61 core? MKVV32, MKVV30? 0.5 - was 10, 7-61 core? MKVVR? 0.5-6 was, 2-61 core? MKVVRP? Was 0.5-4, 2-61 core? MKVVP22 MKVVP2-22? 1.5 - was 10, 4-61 core? MKVVP2-22-1? 1.5 - was 10, 4-61 core? Mainly used in 500KV substation and power plant distribution device and high electromagnetic field area mkvv-1, mkvvvvv22-1? 0.5 - was 10, 2-61 core? 4, using features: coal mine with control cable conductor long-term allowed working temperature is 70 ℃, the cable temperature under installation should not below 0 ℃. Permissible bending radius of control cables used in coal mines: for cables with armored or copper band shielding structures, the bending radius should not be less than 12 times of the outer diameter of the cables. For soft cable with shield layer structure, it should be no less than 6 times the outer diameter of the cable. The cable without armor layer should not be less than 6 times the outer diameter of the cable. ?

为了评定线缆的阻燃性能优劣，国际电工委员会分别制定了IEC60332-1、IEC60332-2和IEC60332-3三个标准。IEC60332-1和IEC60332-2分别用来评定单根线缆按倾斜和垂直布放时的阻燃能力（国内对应GB12666.3和GB12666.4标准）。IEC60332-3（国内对应GB12666.5-90）用来评定成束线缆垂直燃烧时的阻燃能力，相比之下成束线缆垂直燃烧时在阻燃能力的要求上要高得多。

IEC60332-1/BS4066-1阻燃等级（单根电线或电缆垂直燃烧测试FlameTestONSingleVerticalInsulatedWires/Cables）

IEC61131-3标准中，制定了plc的六种编程语言，分别是IL,LD,FBD,ST,CFC,SFC。它们各有千秋，适用不同的场合。今天就跟大家介绍一下CFC。CFC，是指连续功能块图。有些人认为它是dcs的编程语言，其实这种认识是片面的，是盲人摸象的认知，初，这种语言主要用在过程控制中，比如西门子的PCS7，以及各种DCS系统中。因为过程控制就是一系列连续的控制，比如，各种化学反应，都是一环套一环，而连续功能图正好符合这种控制要求，所以就在DCS中大规模应用。

　　2、塑料绝缘电力电缆绝缘层为挤压塑料的电力电缆。常用的塑料有聚氯乙烯、聚乙烯、。塑料电缆结构简单,制造加工方便，重量轻，敷设安装方便,。因此广泛应用作中低压电缆，并有取代粘性浸渍油纸电缆的趋势。其大缺点是存在树枝化击穿现象，这限制了它在更高电压的使用。