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大余专业生产大对数通信电缆安详

更新时间:2025-05-30 05:49:55
价格:3.50每米
品牌:天联牌
销售地区:全国、出口
发货日期:1-3天
联系电话:0316-5961400
联系手机:15075619608
联系人:王艳
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详细介绍
大余专业生产大对数通信电缆安详

  产品标准:Q/NHN使用特性:•交流额定电压:UO/U450/750V•电缆长期允许工作温度:-25℃~+105℃及-60℃~+200℃两种.•耐火特性:符合GB12666.6-90规定:A类:火焰温度950℃-1000℃B类:火焰温度750℃-800℃燃烧时间90min燃烧时间:90min附加电压。
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.

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 polyethylene or polyvinyl chloride thin sheath. Sheath thickness may depend on the basic cable outer diameter. 4, identification and marking: cable appearance with permanent identification mark, tag, at no more than alternate 1 m intervals between 5, sheathed communication cable tag contents are: the diameter of wire, wire on the quantity, type of cable, length, factory name and year of manufacture. 6. Armored communication cable electrical characteristics: the cable meets all the electrical requirements of the basic cable. 7. Cable length: mechanically protected cable is manufactured according to the standard length of the corresponding basic cable

  3. 绝缘厚度:3.3线芯绝缘厚度为0.5,绝缘后外径为3.5毫米。0.85线芯绝缘厚度为0.7绝缘后外径为2.5毫米。4. 成缆时把四根线芯排列为红,绿,蓝,白,排流线,排流线要和线芯一起绞合,千万不要纵放,成缆时不要加填充物,缆芯外用铝箔绕包,而后再绕包一层聚酯膜,在外有一层铜丝编织屏蔽(屏蔽铜丝不镀锡)。

大余专业生产大对数通信电缆安详

  生产规格:对数2对—300对,导体直径为:0.4、0.5、0.6、0.7、0.8(mm)电缆对数型号(0.5)型号(0.5)5对HPVV5x2x0.5HPVVP5x2x0.510对HPVV10x2x0.5HPVVP10x2x0.520对HPVV20x2x0.5HPVVP20x2x0.。

三相电源中流过每相负载的电流为相电流,用IAIBICA表示。对于星型接法的电动机,相电流等于线电流,对于三角形接法的电动机,线电流等于根号3相电流在星形联接的负载中,流过端线的线电流等于流过负载的相电流,流过中线的中线电流等于各相电流的矢量和。在三角形联接的负载中,相电压等于线电压(各相负载两端的电压仍称为相电压)。一般总是三相负载对称的才接成三角形接法,此时三个线电流对称,三个相电流也对称,线电流等于相电流的“根号3”倍。

  规格:截面0.50.751.01.52.54615mm2及以下2.5mm2以上A类1/0.801/1.131/1.131/1.381/1.781/2.251/2.76聚氯乙烯护氟塑料护套聚氯乙烯护氟塑料护套B类19/0.119/0.219/0.219/。

  ZRKVVP铜芯聚氯乙烯绝缘聚氯乙烯护套编织屏蔽zrkvvp电缆450/7504-370.75-10敷设在室内,电缆沟、管道等要求屏蔽、阻燃的固定场合。ZRKVVR铜芯聚氯乙烯绝缘聚氯乙烯护套编织zrkvvr电缆450/7504-370.75-10敷设在室内,有移动和阻燃要求的场合。
  可靠接地时整个485线路的地线必须要有良好的接触,从而保证电压一致,因为在实际施工中,为了接线方便,将线剪成多段再连接,但是没有将屏蔽线作良好的连接,从而使得其地线分成了多段,电压不能保持一致,导致共模干扰。

  铁路信号电缆铁路信号电缆执行标准GB/T。铁路信号电缆适用于额定电压交流500V或直流1000V及以下传输铁路控制信号、音频信号或某些自动装置用固定敷设的各种电缆。4、使用特性:电缆在-40℃-+50℃环境下使用。

大余专业生产大对数通信电缆安详

We comply with the following production, sales and delivery criteria for all products: 1) production time: the goods can be delivered on the earliest day when there is a spot, and the quantity needs to be customized. 2) sales discount: large quantity is preferred. 3). Sales volume: teleconference. 4) delivery standard: the freight charge shall be borne by the seller. The arrival time is generally 3 days. If it is true that the products provided by our company are not in conformity with the requirements of the contract due to the quality problem of the products, we agree to the buyer to exchange or reject the products and return the goods.

Integrated stranded railway signal cable implementation standard GB/ t2476-1993. Railway signal cables are suitable for transmission of railway control signals, audio signals or fixed cables for fixed installation in rated voltage ac 500V or dc 1000V or below. Product name, model, specification and scope: plastic insulation and PVC sheathed railway signal cable PTYAH; PTYA; PZYA; PTYV; PTYY,; PTY22; PTY23; (PZY02; PZY03; PZY23 PZY22) 1/0.8mm (1/1.0mm) 2-48 core is suitable for railway signal communication, fire alarm signal, telegraph and other automatic device systems with rated voltage ac 500V or dc 1000V or below. Polyethylene polythene insulation composite sheath steel tape armoured PVC sheathed railway signal cable PTYA23 PTYA22 PTY23 PTY22 PTYAH23 PZYA23 PZYA22 PZY23 PZY22 0.8 mm (1/1.0 mm) 4-61 core is fit for ac rated voltage 500 v or dc voltage 1000 v and below audio signal transmission and fixed installation of railway signal and group control automation assembly line, is of general automatic transmission railway signal, can also transmit frequency shift automatic block and business phone and other audio signal. 4, using features: cable in - 40 ℃ to + 50 ℃ environment use. Cable conductor long-term working temperature shall not exceed 70 ℃. Ordinary sheath of the cable laying under the environment temperature is not lower than 5 ℃, resistance to sheath for - 10 ℃. The bending radius shall not be less than 15 times of the outer diameter of the cable (when laying) and shall be applicable to any horizontal disturbance

确定二次侧a点(若为星型接线需要先确定y点)由于AX与ax绕组在同一铁芯柱上,故UAX与Uax平行或在一条直线上。从绕组接线图知b与x共点,可以看出UAX与Uax只可能是平行,不可能是共线。相量图上A在X的右上方,a也必须是在x的右上方。根据绕组接线图极性端A在非极性端X的右上方,所以极性端a也必须在非极性端x的右上方,从而确定出a点的位置。根据相量互差120°确定出其他相量。根据UAB与Uab的夹角,确定接线组别。

  绝缘1绝缘应采用符合规定的高密度聚乙烯。2绝缘线芯采用颜色识别标志,绝缘颜色识别应均匀,并采用下列颜色:星绞:白、蓝、红、绿单元线组星绞组绝缘线芯按白、蓝、红、绿顺时针排列。在四线组外扎一标识扎带,扎带颜色:红、绿、白。

大余专业生产大对数通信电缆安详

  专业生产视频同轴电缆,主要产品: 1、视频同轴电缆SYV-75欧姆系列(-3、-4、-5、-7、-9、-12、-15、-17)2、视频同轴电缆SYV-50欧姆系列(-2、-3、-5、-7、-9、-12、-15、-17) 3、视频同轴电缆SYV-100-7欧姆系列 欢迎广大新老客户来样定做,批量不论大。

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  • 地址:天津 河北省廊坊市大城县毕演马工业园
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  • 电话:0316-5961400
  • 销售部总经理:王艳
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