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BVR copper wire has better flexibility in detail.
Red, yellow, blue, green, black, yellow-green (for grounding).
Common sense in the selection of wires for decoration and decoration: 1 square to square millimeter is used for lighting, square millimeters are used for sockets, and 4 square millimeters are recommended for air conditioning, and 4 square millimeters or even more are recommended. The grounding wire is yellow and green two-color wire, and the switch wire is red, yellow, blue, green, black and so on.
1.The length of a wire tie: 100 meters, plus or minus error 2-3 meters;
2.Wire model: BV single strand, BVR multi-strand, BVV double glue single strand, BVVR double glue multi-strand;
3.Common specifications of wires: 1 square 4 square 6 square 10 square etc.;
Difference: BV is a single strand, BVR is a multi-strand, BVR is about 5% more expensive than BV;
Advantages over BV: 1. It is more convenient for the construction of hydropower cables. 2. It is not easy to break the line when the plate is bent; 3. The flexibility of copper wire is better.
The current value of the wire load specified in the national standard (partial).
The square copper core wire allows long-term load currents of 8A---15A
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Summary. BVR100 square soft copper single-core cable more than one meter, 100 square wire copper wire about the approximate weight of 917g m, in addition, due to the different types of wires its insulation and sheath thickness is different, the armored copper core of 3 * 120 + 1 * 70 is. 3*120+1*70 without armored copper core is.
1. Weight per meter (kg) = cross-sectional area * density of copper) 100 * number of cores, such as: YJV 4 * 120 weight per meter = 120 * kg 2, weight per meter (kg) = sum of sections of each core (mm2) * for example, YJV-3 * 240 + 2 * 120 cable The weight of 1 meter is: (3 * 240 + 2 * 120) *
BVR100 square balance soft copper single core cable more than one meter Hello dear, 1 100 square wire its copper wire about the approximate weight of 917g m, in addition to the different types of wires its insulation and sheath thickness is different, the armored copper core of 3 * 120 + 1 * 70 is. 3*120+1*70 without armored copper core is. 1. The weight per meter (kg) = cross-sectional surface leakage * copper density) 100 * number of cores such as:
YJV 4*120 weight per meter = 120*kg2, weight per meter (kg) = sum of cross-sections of each core (mm2) * for example YJV-3*240+2*120 cable The weight of 1 meter is: (3*240+2*120)*
Generally, it weighs about 300 pounds.
I asked how much a 1 meter BVR 100 square soft copper cable weighs one meter.
Hello. 1 meter BVR 100 square soft Peixiang soft copper cable one meter more than 100 square meters of quiet wire with a weight of about kilograms, the specific calculation method is as follows: 1000000)*; m*m*m)*(100/:
m= vm= (mass m=density * volume v is kilograms.)
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To calculate the weight of copper in a BVR 50 mm², 100 meter cable, the cross-sectional area and density of the cable need to be considered.
First, calculate the cross-sectional area of the cable with the code, BVR 50 square millimeters means that the cross-sectional area of the cable conductor is 50 square millimeters. Thus, the cross-sectional area of the cable is 50 square millimeters multiplied by the cable length of 100 meters, i.e. 5000 square millimeter meters.
Secondly, the density of copper needs to be considered. According to international standards, copper has a density of grams of cubic centimeters.
Finally, the cross-sectional area and density of the cable are combined to calculate the weight of copper. First, the cross-sectional area is converted to cubic meters, i.e., 5000 square millimeter meters divided by 1,000,000 to obtain cubic meters. The cubic meter is then converted to cubic centimeters, i.e. multiplied by 1,000,000 to get 5000 cubic centimeters.
Finally, multiply the cable length by 5000 cubic centimeters to get the volume of the cable, i.e., 5000 cubic centimeters multiplied by 100 meters to get 500,000 cubic centimeters.
Multiply the volume of the cable by the density of copper, i.e., 500,000 cubic centimeters multiplied by grams of cubic centimeters, and the weight of copper is 4480 grams, which is about kilograms or about 4400 grams. Thus, the BVR 50 mm², 100 meters long cable contains about kilograms of copper.
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Kg. National standards refer to standards approved and issued by the national standardization authority, which are of great significance to the national economic and technological development, and are unified across the country. The national standard is a unified technical requirement nationwide, which is prepared by the national standardization administrative department, coordinates the division of labor, organizes the formulation (including revision), and unifies the approval, numbering and release. Where the law has other provisions on the formulation of national standards, it is to be implemented in accordance with the provisions of the law.
The term of the national standard is generally 5 years, after which the national standard will be revised or reformulated. In addition, with the development of society, the state needs to formulate new standards to meet the needs of people's production and life. Therefore, the standard is a kind of dynamic information.
The following is an introduction to national standards.
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2. BVR wire is a kind of special soft wire for distribution cabinet, also called secondary wire. Insulated flexible wires with copper core PVC are used in applications where soft wiring is required for fixed wiring. It is deeply loved by the majority of electricians and building decoration personnel.
3. National standard BVR wire parameters:
Product Structure: Conductor + Insulation. The mainstream material of the conductor is mostly oxygen-free copper, which is composed of multiple strands of copper wire, and the insulation is PVC.
Executive standard: JB8734-98 GB5023-2008;
Quality Standards: 3C Certification;
Rated voltage: The wire is immersed in water for 1 hour, and it will not break down for 5 minutes after being subjected to AC 50Hz250V (450 750V (300 500V) voltage test.
Working temperature: the maximum working temperature of normal operation is not more than 70, the maximum working temperature of BVR-105 is 105, and the laying temperature of the wire should not be less than 0;
Allowable bending radius: the outer diameter of the wire (d) is less than 25mm, not less than 4d; If the outer diameter of the wire (d) is 25mm or more, it should not be less than 6 (d).
Color: red, yellow, blue, green, black, brown, yellow-green, white, etc., can be customized according to requirements;
Uses: Suitable for power, daily electrical appliances, instrumentation and telecommunications equipment with AC rated voltage of 450 750V and below, and mostly used in various mechanical equipment, with strong bendability.
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A 10-squared line, no matter what form it is, is a pound of copper. Pure national standard.
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