Assembled prefabricated branch cable

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Product Description:

I. Characteristics of the cables
1. Using factory prefabrication methods can substantially reduce the site construction labor intensity and shorten the construction laying time;
2. Use of cables can guarantee great length and bending property, and greatly facilitates the construction in a complex place;
3. Use of cables reduces the laying space, and cables can be installed together with gas and hydraulic gas pipelines;
4. Their reliability and reliability can be fully guaranteed, for the cables are manufactured in the factory,
5. Sub-branch parts should use high strength sealed joints, which are waterproof and have properties of moisture protection, long-term maintenance and free for repair;
6. Because the cables are directly connected with households with no need of maintenance and repair and with easy and simple construction, the cables can produce significant comprehensive economic benefits.
II. Usage of the cables:
1. To be used for high-rise building;
2. To be used for disaster prevention equipments;
3. To be used for tunnel lighting and disaster prevention equipments;
4. To replace copper bus bar with small or medium capacity in various places.
III. Standards of the cables
IEC 60502 Rated Voltage 1 ~ 30KV extruded insulated power cables and accessories (International Electrotechnical Commission standards)
GB 12706 Rated voltage 35KV and below Copper core, Aluminum core plastic insulated power cable (National Standard of the People's Republic of China)
JCS 376 branch cable (Japanese Electric Wire Industry Standard)
General Rules for JIS C2810 indoor wiring electrical connection pipes (Japanese Industrial Standard)

Types of the cables:
Standard main cables and branch cables are all low-voltage power cables with XLPE or PVC insulation materials (IEC, GB, JIS, BS ... ...), and PVC materials covered on the outer side. Generally, the main cable is single-core or twisted multi-core cable (cables with two to five cores), the branch cables are single-core cables, and may adopt a fire-resistant, flame retardant cables in accordance with the requirements.
Their structures and types are as follows:
No.
Cable Description
Type
single core
three cores twisted type
four cores twisted type
five cores twisted type
1
PVC insulated PVC sheathed branch cables
FZ-W
FZ-W-3
FZ-W-4
FZ-W-5
2
PVC insulated PVC sheathed flame-retardant branch cable
FZ-ZRVV
FZ-ZRVV-3
FZ-ZRVV-4
FZ-ZRVV-5
3
PVC insulated PVC sheathed fire-resistant branch cable
FZ-NHVV
FZ-NHVV-3
FZ-NHVV-4
FZ-NHVV-5
4
Cross-linked polyethylene insulated PVC sheathed branch cables
FZ-YJV
FZ-YJV-3
FZ-YJV-4
FZ-YJV-5
5
Cross-linked polyethylene insulated PVC sheathed flame-retardant branch cables
FZ-ZRYJV
FZ-ZRYJV-3
FZ-ZRYJV-4
FZ-ZRYJV-5
6
Cross-linked polyethylene insulated PVC sheathed fire-resistant branch cable
FZ-NHYJV
FZ-NHYJV-3
FZ-NHYJV-4
FZ-NHYJV-5


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Q:Is the power cable considered a fixed asset?
According to the total number of meters, such as where to where a total of how many kilometers (meters). Power system fixed assets asset management software - TU Teng fixed asset management software.
Q:Yjv22 cable laying pipe when the casing with plastic or steel pipe
(4 × 185 + 1 × 95) is the cable specifications, indicating that the cable has 5 cores, of which 4 cores are 185 Square millimeters, one core is 95 square millimeters. General 185 line is the main core, power with, 95 for the ground core, ground use.
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:Wire yellow and green, respectively, that line of fire or zero line
Insulated piercing clamp is mainly composed of reinforced shell, puncture blade, gasket, waterproof grease, high strength bolts, torque nut and cable terminal cap. When the cable needs to be branched or connected, the cable branch line terminal is inserted into the waterproof terminal Cap sets, to determine the main line branch position, with a socket wrench screw clamp on the torque nut, the process of contact with the blade will pierce the cable insulation, contact with the conductor, the sealing ring ring around the cable puncture position, the shell Grease overflow, when the torque reaches the set value, the nut torque mechanism off, the main line and branch line is connected, and waterproof performance and electrical effects to meet the standard requirements of the parameters. T-shaped terminal is composed of insulation base, wiring frame, fire shield composed of three parts, wiring box by the wire clip, screws, nuts and variable frame and other components, wiring clip and wire contact surface was wrapped in the shape of the dentoid staggered structure, With a large area of ​​spinous process, pressure line reliable features. Through the different shapes of the wire combination of each other, can form a double connection, the lower access to the main line, the upper access to the branch line, the formation of continuous "T" -shaped connection, the product is a protective cover, especially suitable for cable trays and cable And other small places to use, can effectively prevent the suffering of the mouse on the line.
Q:A sub-eight splitter, behind the link ONU equipment, which also need to add fiber patch panels, or can be directly connected?
Cable and 10kV power line parallel laying the minimum distance of 0.5 meters.
Q:Dell laptop plug in the power supply usb can not be used, how is it?
Do not recommend you use that, if the time is slightly longer, the battery has lost, and the performance is also reduced. You use the notebook, the battery on the inside, even if the charger has been stuck all right. The computer has a battery automatically charge the chip, say the lithium battery no memory effect, but very lazy. If it has been in the active state will be very lively. Storage capacity will always be maintained, on the contrary, the loss of vitality, your battery is a little bit lost, their own look,
Q:Can cable TV signal lines and network cables be placed in the same line when upgrading? What happens if you are in the same line? Thank you.
Sub-strong electric power cable control cable transmission cable and so on
Q:How long is the service life of the cable?
For corrosive environments, cable trays with suitable corrosion resistant coatings should be used
Q:PVC pipe line 6 points and 4 points which big ah?
35 square copper wire current carrying capacity is 105A, 105A / 35 mm2 = 3A, (1 square millimeter carrying capacity is 3A) 70 square copper wire current carrying capacity is 169A, 169A / 70 square millimeters = 24A (1 square millimeter carrying capacity is 24A) 1 square hai load current from 11A gradually become 24A So it is impossible to use n by the coefficient can be drawn to the current value Wire can carry the current * the applied voltage * power factor = can drive power The diameter of the wire with different diameter is not the same No specific diameter can not know the current carrying capacity How much power, depending on the voltage level Because P = UI As the saying goes: a square 4 current, underground than this small forget How much is the square here is a square millimeter Power depends on your voltage, the general small line can be directly by 5 is to eat the current to 50-120 the basic can take more than 35 can take 25 or so just personal experience to do reference to the need for basic data: 1 line, copper and iron Aluminum silver temperature 3 core number 4 diameter Probably take a square 5A diameter n square of the wire can be over n high current, resulting in n high power so that can be calculated
Q:Ceiling on the wire after the tube is the tube on how to fix it on the ceiling?
General telephone lines, lighting control lines or wire diameter in the 1.5 square millimeters of small lines with 4 points. More than the aforementioned line will use the 6 points.

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