Metal shield flame resistant power cable

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Loading Port:
Shanghai
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TT OR LC
Min Order Qty:
100 m
Supply Capability:
10000 m/month

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Product Description:

1.      Application

This product is suitable for rated voltage 0.6 / 1kV and below of transporting electricity. This product has a strong anti-electromagnetic interference,anti-lightning and a uniform electric field, improve power quality characteristics. Especially for sophisticated electronic device places, such as computer center, aerospace monitoring center, intelligent building.


2.      Type and Specification

Voltage

0.6/1 kV

 Type

N-VV-P2、N-YJV-P2、N-VV22-P2、N-VV32-P2、N-VV42-P2、N-YJV22-P2、N-YJV32-P2、N-YJV42-P2

 Specifications(mm2)

1 Core:4~300;

2 Core:4~185;

3、 4、 3+1 Core:4~300

Standard

 GB/T 12706-2008


3.      Using features

①    Rated voltage Uo/U 0.6/1 kV.

②    The permissible maximum conductor operating temperature: XLPE insulated 90 ℃, PVC insulated 70 ℃.

③    Cable short circuit (the longest duration of no more than 5s), the maximum temperature of the conductor: XLPE insulated cable 250 ℃, PVC insulated cable 160 ℃.

④    Laying the ambient temperature should not be less than 0 ℃, should be less than 0 ℃ pre-heated. Cable bending radius: Single cable without armor no less than 20 times the cable diameter, armored not less than 15 times the cable diameter; multi-core cables without armor is not less than 15 times the cable diameter, armored not less than 12 times the cable diameter.

⑤    Finished cable should be subject to 2.5U0 + 2kV power frequency voltage test 5 min without breakdown.

⑥    DC resistance of conductor at 20 ℃ comply with GB / T 3956.

⑦    Finished cable with anti-electromagnetic interference, anti-lightning and other characteristics.

⑧    Cable fire-resistant characteristics comply with the requirements GB / T 19666. 


4.      Picture of structure


1、Conductor   2、Insulation  3、Filler   4、Tape  5、Inner Sheath   6、Metalshield   7、Outer Sheath

 


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Q:Yjv22 cable laying pipe when the casing with plastic or steel pipe
In the air defense regulations, the pipelines of the air defense zone need to be treated with the protective wing ring. The bridge frame is designed according to the cable laid in the bridge. The cable size and quantity determine the size and quantity of the casing. Increase the standby, air defense requirements casing with hot galvanized treatment, both sides of the exposed wall shall not be less than 100 mm, wing ring production can refer to rigid waterproof casing or flexible waterproof casing (explosion-proof). The general construction plans will have a clear sign, or should be presented to the Design Institute in the trial.
Q:Calculate the control cable under what circumstances the cable terminal needs to be calculated
This is the air defense when the air pipe laying through the mouth of the closed wall or the protection of closed wall approach, regardless of the side of the wall or the roof into the line have this requirement
Q:What is the use of wire and cable per square meter of residential building?
Generally wear SC65 tube. If the distance is too long, elbow and more, then the choice will be larger.
Q:Power cable 5-color line, respectively, what color, what role?
YJ: cross-linked polyethylene insulation V: PVC sheathed 22: steel tape armor 8.7 / 15KV: rated voltage: 8.7 / 15 kV 3 * 300: three conductor cross-section of 300 square copper conductor Another: such as YJLV Is the aluminum core. Here is not marked what the material is conductor, you can default to copper conductor.
Q:The difference between power cable and overhead cable
Insulation structure is not the same, the number of core is not the same. Power cable generally 3-4 phase, overhead cable general core. Power lines can be divided into overhead lines and cable lines. Overhead lines with less investment, easy construction and maintenance, easy maintenance and repair advantages, the disadvantage is the natural conditions (wind, snow, ice, lightning, etc.) have a greater threat to operational safety. In order to save the country's construction funds, the general use of overhead lines is appropriate. However, when the conditions are subject to restrictions (such as overhead lines laid in difficult or special requirements), the use of cable lines. Cable and overhead lines compared to poor heat dissipation, it should be considered in the short-circuit conditions of thermal stability. Therefore, in addition to high-voltage cable cross-section in accordance with the economic current density, allowing voltage loss, long-term allowable current selection, but also according to short-circuit thermal stability conditions for verification.
Q:What recycled rubber is suitable for the production of wire and cable?
Need to choose according to specific circumstances. The main difference between single and multi-core is the flexibility of the wire. In fact the two do not exist which good question, but the use of the environment is not the same. Home decoration: First, the lighting line, can be used 1.5 single strand copper wire. . 2P (inclusive) or more of the air-conditioning, that is, hot water heater, Yuba must use 4 square double strand copper wire; Third, the wall buried the best choice for single wire copper wire, you can choose according to the need for 4 square Mm, 2.5 square millimeters, 1.5 square millimeters and other specifications (usually 2.5 square millimeters with the most). Fourth, the remaining lines, are using ordinary 2.5 pairs of copper wire can be.
Q:The difference between the instrument cable and the low voltage power cable
In this only said home improvement commonly used, the pipe is basically direct, elbow, tee, the price is 5 points / only.
Q:Paint trunking, galvanized trunking: that good? expensive? Their advantages and disadvantages?
Because the AC operation will produce eddy current, will make the steel pipe and cable heat burned. Single core refers to only one conductor in an insulating layer. When the voltage exceeds 35kV, most of the single-core cable, its core and metal shield layer relationship can be seen as a transformer primary winding coil and the relationship between the core. When the single-core cable core through the current when there will be magnetic lines linked to aluminum or metal shielding layer, so that both ends of the induced voltage. Power safety regulations: 35kV and below the voltage level of the cable are used at both ends of the grounding method, which is because most of these cables are three-core cable, in normal operation, the current flow through the three core sum of zero, in the aluminum There is no flux chain outside the package or metal shield, so that there is essentially no induced voltage at both ends of the aluminum or metal shield, so there is no induced current flowing through the aluminum or metal shield after grounding at both ends. But when the voltage exceeds 35kV, most of the single-core cable, its core and metal shield layer relationship can be seen as a transformer primary winding coil and the relationship between the core. When the single-core cable core through the current when there will be magnetic lines linked to aluminum or metal shielding layer, so that both ends of the induced voltage.
Q:What is the warranty period for wire and cable?
The state is 30 years warranty. But the specific warranty period according to the type of wire and cable and the use of conditions and temperature and applicable methods to determine.
Q:What is the power cable accessories used to do?
Do not know what you want to ask? What about your situation? Normal or pregnant? Normal this radiation does not affect what, if it is pregnant, this is far away from the best. Pregnancy is most needed to stay away from the microwave!

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