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- home > Supply > Low voltage cables | Middle East cable, power cable Gold | linyou low voltage cables Agent
Information Name: | Low voltage cables | Middle East cable, power cable Gold | linyou low voltage cables Agent |
Published: | 2015-07-10 |
Validity: | 0 |
Specifications: | Any |
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Detailed Product Description: | Check out the information on low-voltage cables and did not find provisions on cable line voltage drop. On voltage loss, Wushenqi low voltage cable supplier in GBJ54-1983 "low-voltage power distribution equipment and circuit design norms", in Chapter 2 conductor cross-section selection states: "From the transformers to low-voltage electrical equipment by the side of the bus Line voltage loss of electrical terminals, generally no more than 5% of the rated voltage electrical equipment. " June 1, 1996 implementation of GB50054-1995 "low voltage power distribution design specifications," the abolition of the former national standards GBJ54-1983. GB50054-1995 has now been replaced by GB50054-2011, however, in 1995 and 2011 two editions of GB50054 standard, they did not like the version of the 1983 standard, as detailed on the voltage loss provisions. Only in GB50054-2011 standard 3.2.2, "Select conductor cross section shall comply with the following requirements": "Line voltage loss should meet the normal operation of electrical equipment and start-terminal voltage requirements." At the moment, check the voltage loss and low voltage distribution lines, Qianyang low voltage cable manufacturers, are by no more than 5% to the principle of high visual requirements lighting circuits require no more than 2% to 3%. Low-voltage cable in the AC power system, the cable line impedance is present. Impedance of the resistance, reactance constituted. When the current through the impedance, the impedance of the voltage difference generated at both ends of the voltage drop is called. Cable voltage loss refers to the beginning of the line voltage via line transmission line loss of or influence on its size, a low voltage cable, is the difference between the value of the voltage across the line, Lanzhou low voltage cable outlets, used its rated voltage compared with the percentage represented . Low-voltage cable lines, due to the low voltage, short circuit, a capacitor current can be ignored, so you can just consider inductive reactance, while medium voltage cable is different, you must also consider the capacitive current, namely capacitance size. Cable length l in three-phase current system to the current I (rms set its Ibe) an insulated wire core (A) work, its effective resistance per unit length of R0 (Ω / km) and a sense of unit length Anti-as X0 (Ω / km). Its single-phase equivalent circuit diagram of the cable lines. Start end voltage cable lines for Uae, the terminal voltage of Ube. As in the horizontal direction relative to the amount of the terminal voltage Ube, set its initial phase to zero, as the reference. Due to low voltage cable capacitance charging current can be ignored, the cable is inductive load, the current lags the voltage, Φ voltage and load current I Ube retardation, cosΦ is load power factor. UR-phase voltage and current at both ends of the cable on the effective resistance R0, and reactance voltage leads the current X UL 90 ends. Low voltage cables | Middle East cable, power cable Gold | linyou low voltage cables proxy provided by Cable Co., Ltd. Shaanxi Baoli. Shaanxi Baoli Cable Co., Ltd. (www.jinlidl.com) (www.jinlidl.cn) is Xi'an, power cables leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In the cable, power cable leading gold Middle East with the staff warmly welcome all inquiries negotiations to create the Middle East cable, power cable gold better future. |
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Copyright © GuangDong ICP No. 10089450, Cable Co., Ltd. Shaanxi Baoli All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 27500 visitor
Copyright © GuangDong ICP No. 10089450, Cable Co., Ltd. Shaanxi Baoli All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility