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:
three cores twisted type
four cores twisted type
five cores twisted type
PVC insulated PVC sheathed branch cables
PVC insulated PVC sheathed flame-retardant branch cable
PVC insulated PVC sheathed fire-resistant branch cable
Cross-linked polyethylene insulated PVC sheathed branch cables
Cross-linked polyethylene insulated PVC sheathed flame-retardant branch cables
Cross-linked polyethylene insulated PVC sheathed fire-resistant branch cable
- 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:Emergency cable T-box and cable distribution box of the information?
- The incoming and outgoing wires are electrically connected together The potential is the same, which is suitable for tapping or branch wiring It is common practice to add the number of lines back to the number of times The three-branch cable splitter box, which has three equipotential bonding points on each phase, can be used as a second or two-in-one Cable distribution box contains U, V, W three-phase, three-phase circuit structure is the same, along the row together 2 High-level distribution box High-level distribution box containing switching equipment, both from the ordinary distribution box of the tap, branch, but also from the power supply circuit control, conversion and change the mode of operation The switch fence roughly divides the cable circuit into the inlet and outlet sides, and the potential on both sides can be different The switchgear itself has a larger volume, so the high-level distribution box size is relatively large, the height is generally 14 ~ 18m, the depth of about 09 ~ 10m, the length of the number of switching devices according to the number, M to 24 m The shape of the box is similar to that of an outdoor box transformer, and there are a number of active doors on the shell Some doors are designed for the operation of the switchgear Some doors are provided for the installation or maintenance of the cable connection device The
- Q:What is the use of wire and cable per square meter of residential building?
- You can use sc. if too long, or bend the best use of the bridge
- Q:With a i3-2100 desktop computer about how much money. To have a separate graphics card. Give a configuration alone, no more than 4000
- Yellow is the ground, the other two casually, mainly to see when you plug there is the line of fire, no effect.
- Q:Construction of hydropower embedded pvc pipe after the solidification of the pipe after the flat tube
- Cable model NHYJV3 * 25 + 2 * 16 its name is: fire-resistant cable. NH ----- on behalf of fire. YJV ----- XLPE insulated PVC sheathed power cable. 3 * 25 ----- 3 cable cross section is 25 square (for 3 phase line with). 2 * 16 ----- 2 cable cross section is 16 square (one for the neutral line, one for the ground line). Fire-resistant cables are generally used for TN-S power supply systems (five-wire).
- Q:What is the installation specification for the cable tray bracket?
- WDZ low smoke zero halogen flame retardant power cable. WDZN low smoke zero halogen flame retardant power transmission cable. W-halogen-free, D-low smoke, Z-flame retardant, N-refractory, YJ-XLPE insulated, V-PVC sheathed YJV-XLPE insulated PVC sheathed power cable. Model of the principle of omission: wire and cable products, copper is the main use of the conductor material, so the copper code T write, but bare wire and bare conductor products except. Bare wires and bare conductor products, power cables, electromagnetic wire products do not indicate a large class code, electrical equipment, wire and cable and communication cable category is not listed, but set out small class or series code. Item 7 is a special use of special occasions or additional special requirements of the mark, in the "-" after the alphabet letters. Sometimes in order to highlight the item, write this to the front. Such as ZR- (flame retardant), NH- (refractory), WDZ- (low smoke and halogen, enterprise standard), TH- (for hot and humid areas), FY- (anti-termite, enterprise standard).
- Q:What is the cable for the YJV33 cable?
- If there is a mutation in the target fragment, all the dideoxy-terminated fragments that are larger than a certain size corresponding to the mutant position have no wild-type system, and the rate of detection of mutations is improved for each occurrence of multiple changes in the mobility The ddF method overcomes the difficulty of SSCP analysis due to the effect of DNA length on SSCP, and produces a specific single stranded DNA by a dideoxycyclic acid to show that the DNA fragments with suitable length indicate SSCP changes
- Q:Power cable yjv22-10kv-3 * 50 what it means
- Yj is cross-linked polyethylene insulation, v PVC sheathed 22 is double steel tape armored, voltage 10KV, 50 square three-core copper cable
- Q:1omoons / days sensitive quad-core network set-top boxes can be used on old-fashioned televisions.
- Pipe protection cable to wear metal hose, metal hose and galvanized pipe to use metal lock connection, the connection can not pull the light pull on the line. If there is no metal hose or no metal lock, in the pipe when the pipe toward the cable to the appropriate bending, preferably in the mouth of the cushion cable skin, and then use the electrical adhesive tape sticky, sticky. After the nozzle cut with a polisher smooth grinding, the provincial scratch cable.
- Q:Power cable YJV22-8.7 / 15kv-3 * 300 what meaning
- Power cable YJV22-8.7 / 15kv-3 * 300 Meaning: refers to the copper core XLPE insulated double steel tape armored PVC sheathed power cable, cable rated working voltage 8.7 / 15KV, cable for the three-core, single Conductor cross-sectional area of 300mm2. YJ: cross-linked polyethylene insulation V: PVC sheathed 22: steel tape armor 8.7 / 15KV: rated working voltage 8.7 / 15 kV 3 * 300 Specifications: YJV22-8.7 / 15kv-3 * : Three conductors, single cross section of 300 square feet.
1. Manufacturer Overview
|Annual Output Value
2. Manufacturer Certificates
|a) Certification Name
3. Manufacturer Capability
|No.of Employees in Trade Department
|No. of Production Lines
|Product Price Range