XLPE Insulated Electrical Cable For Rated Voltage 3.6/6KV~26/35KV
For XLPE insulated power cable, either chemical method or physical method is employed to transform the molecular structure of PE from chain into three-dimensional network, i.e. thermoplastic PE is transformed into thermo setting XLPE. After cross-linking, the thermal and mechanical properties of PE have been greatly improved while its excellent electrical property are still retained.
The maximum permissible operating temperature of the conductor of a XLPE insulated power cable is 90℃ which resistance is higher than that of PVC or PE insulated power cable. The cable has the advantage of simplicity in construction, lightness in weight, convenience in application besides its excellent electrical, thermal, mechanical and anti-chemical corrosion properties. It can also be laid with no limitation of level difference along the route.
1. Product standard
The product is manufactured according to the standard of IEC60502-2 [Extruded solid dielectric power cables for rated voltages from l KV (Um=1.2KV) to 35KV (Um=40.5KV)", BS, DIN and ICEA upon request.Include 33kv Cable, 20kv Cable ,15kv Cable,11kv Cable, all of them are manufactured according to the standard.
2. Applications
The product is suitable for use in power transmission and distribution lines with rated power frequency voltage 3.6KV/6KV~26/35KV.
3. Operating characteristics
Rated power-frequency voltage U0/U: 3.6/6KV~26/35KV.
Max. Permissible continuous operating temperature or conductor:90℃.
Max. short-circuit temperature of conductor shall not exceed 250℃. (5s maximum duration)
The ambient temperature under installation should not below 0℃.
The bending radius of a single-core cable should not less than 20 times of the cable diameter.
The bending radius of a three-core cable should not less than 15 times of the cable diameter.
4. Voltage designation
The rated voltage of the cable for a given application shall be suitable for the operating conditions in the system in which the cable is used, and is expressed in the form of U0/U (Um) KV. Where:
U0-The rated power-frequency voltage between conductor and earth or metallic screen, for which the cable designed;
U-The rated power-frequency voltage between conductors, for which the cable designed;
Um-The maximum value of the [highest system voltage" for which the equipment may be used.
5. The values of U0 recommended for cables to be used in three-phase systems are listed below.
System category A-This category comprises those systems in which any phase conductor that comes in contact with earth or an earth conductor, is disconnected from the system within 1 min.
System category B-This category comprises those system which under fault conditions, are operated for a short time with one phase earthed. This period should not exceed 1h. For a longer period, not exceeding 8h on any occasion, can be tolerated. The total duration of earth faults in any year should not exceed 125h.
System category C-This category comprises all systems which do not fall into categories A and B.
6. Construction of cable
3.6/6kV~26/35kV, Single-core, XLPE insulated, power cable
3.6/6kV~26/35kV, Single-core, XLPE insulated, steel tape armored power cable
3.6/6kV~26/35kV, Single-core, XLPE insulated, steel wire armored power cable
3.6/6kV~26/35kV, Three-core, XLPE insulated, power cable
3.6/6kV~26/35kV, Three-core, XLPE insulated, steel tape armored power cable
3.6/6kV~26/35kV, Three-core, XLPE insulated, steel wire armored power cable
Single Core Aluminium Conductor,Three Core Copper Conductor,Three Core Aluminium Conductor,33kv Cable,20kv Cable,15kv Cable,11kv Cable,69kv Cable Huayuan Gaoke Cable Co.,Ltd. , https://www.bjhygkcable.com
In the modern office model, the computer is the most frequently contacted and the most contacted item. With the development of electronic technology, computer peripheral products are also becoming more and more abundant, and the increase in interfaces is bringing convenience to people and harming people at the same time. People's health.
However, busy modern people do not seem to be aware of this potential killer. Even if someone realizes it, they are helpless. The busy work even makes people ignore the importance of health.
So, since the daily work can not be separated from the computer, how can we minimize the harm of computer radiation to the human body?
1. Avoid operating the computer for a long time and pay attention to the middle rest. To maintain a proper posture, the distance between the eyes and the screen should be 40 to 50 cm, so that the eyes can be seen flat or slightly down to the screen.
2. Indoors should maintain a good working environment, such as comfortable temperature, clean air, suitable anion concentration and ozone concentration.
3. The computer room light should be suitable, not too bright or too dark, to avoid direct light on the screen and generate interference light. The studio should be kept dry and ventilated.
4. Filters should be used on the screen of the computer to reduce visual fatigue. It is best to use glass or high quality plastic filters.
5. Install guards to reduce the intensity of electromagnetic radiation.
6. Pay attention to keeping the skin clean. There is a large amount of static electricity on the surface of the computer screen, and the accumulated dust can be transferred to the exposed parts of the face and hand skin. After a long time, it is prone to rash, pigmentation, and even serious skin lesions.
7. Pay attention to nutritional supplements. If the computer operator works too long in front of the screen, the rhodopsin on the retina is consumed, and rhodopsin is mainly synthesized by vitamin A. Therefore, computer operators should eat more carrots, cabbage, bean sprouts, tofu, red dates, oranges and milk, eggs, animal liver, lean meat and other foods to supplement the body of vitamin A and protein. And drink more tea, tea polyphenols and other active substances will help absorb and resist radioactive substances.
8. Place some cactus plants next to the computer. Such plants can effectively reduce computer radiation. Such as the Golden Tiger (is a round hard cactus cactus), aloe, spider orchid and the like.
After reading the above, you dare to ignore these details before the screen? Sleepy and tired, do not sleep in front of the computer, especially on the keyboard; daily work must not be bowed, it must not be too close to the screen; In addition, Xiaobian suggested that we should not go Internet cafes are harmful to the Internet.
For your own health, do the above points on a daily basis to have capital to meet more and higher challenges in life! Start from me! Start now!