QWhen the XLPE Insulated Cables be used?AIn the following conditions, the XLPE cables will be used:
1.Extreme temperature conditions (high and low);
2.High voltage electrical application;
3. Abrasion and stress;
4. Water and other liquids;
5. Chemicals and other hazardous materials
They can also be used for plumbing, mining, and various electrical applications. Cross linked polyethylene cables can also be found across the chemical industry and within the commercial and residential heating industry. Don’t forget about dentists offices and other medical institutions, grounds keeping at stadiums and other venues, and much more.
QWhat is XLPE Cable and the advantage of XLPE insulation？AXLPE is cross linked polyethylene. It is a hydronic tubing manufactured from polyethylene plastic. XLPE features a 3D molecular bond structure and shape memory characteristics.
XLPE insulation performs at both high and low temperatures. Due to its structure, XLPE is extremely resistant to abrasion and other wear and tear. It also boasts resistance to high voltage electricity, chemicals and other hazardous materials. Cross linked polyethylene insulation is also a more affordable option.
QHow to install the MV Power Cable?A1.The end user shall be required to carry out necessary field surveys and acquaint himself with the routing of all other service lines.
2.Cables shall be laid directly on ground on 10 cm minimum soft sand, and ground will be back filled properly avoiding any aggregate with sharp edges for damaging the cable insulation. End user shall provide 5 cm thick cement tiles above the back fill then HT marker for safety.
3.The cable ladder shall be bounded to ground at both ends.
4.All cables shall be marked with their respective cable numbers all along their routes at intervals not greater than 2.5 meters.
5.Spliced and joints on MV cables are not permitted.
6.Radius of cable bends shall be greater than 12 times the outside diameter of the cable.
QWhat are the requirements for the fire blocking of cable holes?AFor larger cable penetration holes, such as the cable penetration floor, etc., when using fireproof blocking materials to block, according to the actual situation, first coat four to six layers of fireproof paint on the cable surface, the length is about 1.5m below the hole, and then use fire-resistant The material is processed into a board-supporting fire-proof blocking material with a certain strength to ensure that it is firm after being blocked and is easy to disassemble and assemble when the cable is replaced. The plugging is dense and non-porous to effectively block smoke and fire.
QWhat are the insulating materials used to make cable terminal heads or intermediate joints?AThere are insulating glue, insulating tape, insulating tube, insulating gloves, insulating resin, etc.
QWhat are the conductor stranding methods of power cables？AThere are two twisting methods for the conductive cores of power cables: twist-free twisting and twist twisting.
The core twisted by the back-twisting method has no internal torsion stress, so it is mostly used for twisted wires that are not tightly compressed to avoid dispersing when the single wire is broken due to internal stress.
Twisting without back-twisting is mostly used for compacted cores, because the residual stress generated by self-twisting is elastic deformation, and the compaction is plastic deformation, so the internal stress can disappear after compacting.