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The 16-core one can be made, and it is in line with the national standard if it is done in accordance with the national standard. There are 20 cores and 30 cores, and the number of cores is not online, and how many cores can be made.
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Given your question, for cables, he serves a different purpose. So how far away he is, his heart is also changing. Active cables have flat cables.
And fiber optics or something. The cable is multi-core, which belongs to weak current control. When the cable is in the case of several cores, it mostly belongs to strong current control.
Hope it helps, it's just a personal opinion.
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If this kind of power line is loaded, it should be able to do about 8 stars at most, because the number of cores in this one of him is still relatively large.
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Generally speaking, power cables are at most five cores, and there may be a lot of control cables.
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Now the development is still relatively rapid, and it can do about 15 lines at most.
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This requires you to find some professional cables, some people, and then ask them to help you see how you need to do this, and then how much care you can do, and this may help you.
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Now the motor, its cable can also have an electric aluminum core, and its use can be better helped.
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What is the maximum number of cores that can be made of a power cable? I think this can still be done a lot, but I don't know exactly how much, ask a **.
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How many heart disease tests are there, you can tell how many neuropathies are still being checked through that query.
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How much heart can power cable do at most, log in to power cable related ** consult power cable, the most heart.
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How many hearts can a cable make? Of course, depending on its capacity, it is decided to go long.
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How many catties can be made of power cables, which is actually based on the actual situation to conclude that it is actually based on the actual operation?
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I just helped you check, according to the relevant information, the most can be made of eight cores.
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It's best to find a professional person, that is, find a professional person to identify it, and see if this thing is used anymore.
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Optical cables from 1 core to 288 cores are more commonly used. Generally, the quantity used is an even number, and the types and quantities used are as follows
1. Generally, 1 to 2 cores are leather cables, and FTTH fibers are used in the home;
2. Most of them are 4 to 48 cores, which are generally used in monitoring, operators, and system integration. It is generally used in the community and in the sewer pipe;
3. The backbone optical cable generally uses more than 48 cores.
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Five-core cable specifications and models:
1. Cross-linked polyethylene.
Insulated polyethylene sheathed power cable 4 1 core with a nominal cross-sectional area of 120 mm2 and a neutral cross-sectional area of 70 mm2;
2. XLPE insulated polyethylene sheathed fire-resistant power cable 4 1 core The nominal cross-sectional area is 35mm2, and the neutral cross-sectional area is 16 mm2;
3. XLPE insulated polyethylene sheathed fire-resistant power cable 5 cores with a nominal cross-sectional area of 6mm2;
4. Copper core polyvinyl chloride.
insulated wire with a nominal cross-sectional area of 10mm2;
5. Copper core PVC insulated refractory wire, with a nominal cross-sectional area of 6mm2 for a single core;
6. Copper core PVC insulated flame retardant wire, with a nominal cross-sectional area of 4mm2 for a single core;
7. Copper core PVC insulated flame retardant wire, single core nominal cross-sectional area of 2 5mm2;
8. Copper core PVC insulated refractory wire, with a nominal cross-sectional area of 2 5mm2 for a single core.
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There are n specifications of 5-core cables, from small 5*, 5* to large *240, etc.
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The cable is divided into several cores according to the number of wires wrapped in the cable rubber, and a wire is a core, and the common ones are two cores, three cores, four cores, six cores, etc.
1. The two cores are used to control an electrical appliance, one is the live wire and the other is the neutral wire, and the switch is connected in series in the middle of the live wire to turn on or off the power supply;
2. Three-core, generally used for 380V power cord, one of which is the neutral line, the remaining two are live wires, and the electrical appliances and the power supply are controlled by three gate switches or magnetic starters, mostly used for three-phase motors or electric welding machines;
3. Four-core, generally used for the power line of the incoming line, one is connected to the zero line, and the other three are connected to the a, b, c live wire of the transformer, A, B, C live wire, all the electrical power at the end is roughly equal, so that the output power of the transformer is stable;
4. Six-core, generally used in a small space, there are a lot of electrical appliances, so that he can control five electrical appliances, multi-switch series of these five live wires, five electrical appliances together a zero line.
For example: the crane power supply line in a workshop, there is a circuit that controls the longitudinal walking of the crane, a transverse circuit, a rising circuit, a descending circuit, and a siren circuit, all of which are operated by one person and a control switch, so such a cable must be used.
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Hello. 1 square wire can load 3 kW (single phase) or 7 kW (three phase). Wires are mainly used for outdoor overhead and indoor busbars and switch boxes.
Magnet wire is an insulated wire that generates a magnetic field when energized or induces an electric current in a magnetic field. It is mainly used for motor and transformer coils and other related electro-pneumatic trapped magnetic equipment. Its conductor is mainly copper wire, which should have a thin insulation layer and good electrical and mechanical properties, as well as heat-resistant, moisture-proof, solvent-resistant and other properties.
Different properties can be obtained by using different insulating materials.
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A few cores generally refer to the cable, it specifically refers to the existence of several wires insulated from each other inside the insulated skin, and a few cores are a few cores, if they are not insulated from each other, how many are counted as a core. Two cores refer to two wires that are insulated from each other wrapped together, and are generally used for household electricity within 220V. There are 2 kinds of three-core, one is a 2-phase three-wire system, one is a three-phase three-wire system, 4 cores are three-phase 4-wire system, three live wires, one neutral line, and 5 cores are three-phase 5-wire system.
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The number of cores of the cable means that there are several independently insulated cores in this cable, as shown in the figure below. There are 3 independent cores in this cable, which is called a 3-core cable.
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Fiber optic cable is more commonly used from 1 heart to 288. Generally, the number used is an even number. 1-2 cores are generally leather cables, FTTH fibers are used in the home.
4-48 is used a lot, generally used in monitoring, operators, system integration. It is generally used in the community and in the sewer pipe; 48 or more can only be used as a backbone optical cable.
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Fiber optic cables are generally 1 432 cores.
The commonly used ones are 12 24 48 72 96f
The most commonly used in China are 24 and 48f
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The number of cores of the fiber is determined by the capacity of the system, which is generally double, and some should be kept for backup.
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The BTTZ cross-section of the MI cable model is made into a single core above 25 square millimeters, and the following is a multi-core. But in the last decade, this rule no longer exists, and flexible MI cable BBTRZ has also been produced like common YJV and VV cables.
The basis for testing mineral cables in China is mainly BS6387 "Fire Resistance Test Method for Maintaining Circuit Integrity of Cables under Flame Conditions" in C (simple combustion), W (spray) and Z (impact) experiments; and GB Line Integrity Test of Cables or Optical Cables under Flame Conditions, GB T 13033-2007 Mineral Insulated Cables and Terminals with Rated Voltage of 750V and Below.
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