Black Low Shrinkage Silane XLPE Compound for 10KV and Below Aerial Hanging Cable

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

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Supply Capability:: 1000000kgs kg/month

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Description

Grade 4245 is specially used for 10KV below aerial hanging power cable, it is composed by 90% silane crosslinkable low density polyethylene (compound A) and 10% black catalyst (compound B). The product’s major characteristics are

◆Outstanding anti-ageing property

◆Low heat shrinkage rate

◆wild processing temperature, easy processing technique and convenient handling

◆Suitable for tubing style extrusion mould.

Standard

After crosslinked in the tepid water, the cable made from the product grade 4245 can comply with the standard of IEC60502-2004, GB/T14049-2008

Main Properties & Typical Values

Test Items	Unit	Test Method	Standard	Typical value
Tensile strength	MPa	GB/T1040.3	≥13.5	19.6
Elongation at break	%	GB/T1040.3	≥300	480
Heat ageing properties (Test temperature 135℃, 168hr) Maximum tensile strength change Maximum elongation at break change	% %	GB/T8815	±20 ±20	8.9 6.7
Heat elongation （200±3)℃x15minx0.2MPa) Maximum elongation change under load Maximum permanent elongation change after cooled	% %	GB/T2951	≤80 ≤5	48 4
Impact brittle temp. (-76℃) Impact brittle	Failure no.	GB/T5470	≤15/30	Pass*
Dielectric Strength	MV/m	GB/T1408.1	≥30	39*
Dielectric loss factor 50Hz, 20℃	--	GB/T1409	≤1×10^-4	3×10^-4*
Dielectric constant 50Hz, 20℃	--	GB/T1409	≤2.35	2.3*
Volume resistance (20℃)	Ω·m	GB/T1410	≥1.0×10¹⁴	5×10^14*
Pressure crack test F50	hr	GB/T2951	1000	Pass*
Artificial atmosphere ageing properties: Ageing After 42days, Maximum tensile strength change Maximum elongation at break change Ageing after 42days vs. after 21days Maximum tensile strength change Maximum elongation at break change	% % % %	GB/T14049	±30 ±30 ±15 ±15	-17 -26 -8 -12

Typical values were tested on the sample strip by squeezing film extrusion after mixing compound of A & B(at percentage of 90:10) and be boiled in hot water at 90℃ for four hours.

*Especially, these typical values were tested by press moulding sample (A and B mixed at percentage of 90:10), under the condition of 180±2 ℃, 15min, and pressure over 15Mpa, then boiled in 90℃ water for four hours.

Recommended Processing Technique

1. Extrusion Equipment

Most extruders for PVC and PE suit for 4245

The recommended equipment and processing technique is as following.

Ratio of length and diameter 18—25:1

Diameter 45—120mm

Ratio of compressing 1.5—3.5

Ratio of elongation 1:1.0—1:1.5

Filtering mesh 40/60/40

2. Extruder processing temperature and other related settings

Temperature Setting: Specific processing temperature should be based on different equipment and pressing conditions, reference settings are as following:

Feeding Section（℃）

Compression Section（℃）

Measurement Section

（℃）

Die head and Mould

（℃）

135~155

155~170

170~180

180~200

Die head setting: Tubing extrusion style is recommended.

3. Crosslink

After extrusion and cooling, the cable can be crosslinked by immersed in hot water (90℃) or exposed in low pressure vapour. The time required for crosslink is based on the thickness of the insulation and the coil size, the thicker the insulation and the greater the coil size, the longer the crosslink time required. The crosslink time can be calculated according to the equation of 4hr/mm for 90℃.

Q: Four lines only reached a phase line, at the other end all charged, I use the digital pen! In addition, I often check the cable when the cable current through the dot digital pen voltage symbols sometimes have time to disappear, in other bare wires when the test keys are normal! What is this going on! Ask the heroes to give the younger brother a complete point of the answer! More: There are [the top of the machine can be broken off the ball can be hit by Jiu turtle snow box video output cable and DVD video output line] into a junction box, and then through the sub-box toggle switch to select the 'set-top box' or 'DVD'; This junction box outputs a wire connection device or is connected to a TV.

Q: I would like to ask my new workshop power consumption of about 500KW, injection molding machine, 60KW . 40KW . 20KW . the other 20KW, how much should the wire? Respectively how to use lines and switches more: There must be no room for consultation I did not have to do for seven years lazy they want to do nothing irresponsible

Q: What brand of cable is good, what are the top ten brands of wires?: Power circuit box, the home of the circuit is divided into lighting, walls, air conditioning, etc., there is the bathroom and the kitchen line and the separation of the room.

Q: Ipad not charge how the matter. Said the cable or accessories have not been certified, and may not be able to cooperate with this ipad reliable work....: Several sets of cables in the same height of the laying, the adjacent cable between the bridge should be considered maintenance, maintenance needs, generally not less than 0.6m. This is just a matter of theory, it does not matter. Anyway, the actual construction is to do so,

Q: What is the difference between "wire" and "cable"?: Inkjet printer is not printed, pictorial machine high definition, generally used in the advertising industry, for large outdoor advertising, the nozzle can choose not necessarily the number of installed, the more spray, spray the faster, a nozzle of the general life 1 year.

Q: Wire and cable model ZD what does it mean: Wire pipe water problem: In fact, this problem is very serious, then this line should be scrapped or replaced, if you continue to reluctantly use not only to bring you the safety of trouble and the insulation of the wire dropped sharply! Because there is water it will lead to internal leakage can also make the wire heat caused by wire burning and trivial trivial accident, so be sure to take the necessary replacement! Supplement: the wire out of all, with the wire to grab the absorbent gauze and the like back to the twitching, many times for the gauze to dry the water, hair dryer toward the tube to heat the tube to dry and then re-layout of the new line.

Q: What is the difference between the WDZ wire and cable, the ZR wire cable and the NH wire and cable, and what kind of wire and cable should be used?: BV1 * 2.5 is a 2.5 square line. 2 * 2.5 is two 2.5 square lines. 3 * 2.5 is three 2.5 square lines. 4 * 2.5 is the 4 2.5 square line lighting wire power cord with 2 * 2.5. Light wire with 1.5 is enough. Socket (pipe) with three 2.5 square lines, you can also use 3 * 2.5 a. 4 * 2.5 for three-phase motors.

Q: Why does the bird stand on the wire without anything, but if people touch it,: Please provide air-conditioned three-leg socket photo, because you said "open inside is 2.5 square line ~ is a separate line ~" is not very understanding.

Q: If you want to sell wire and cable, then what to do in advance to detect? The The The The The: If you use the color component output, you have to have the color difference component interface. With the color line facing the same color on the line. AV line of the yellow plug is the video, red and white is the audio delay Han silhouette cellar jealous of the tea, according to the same color received TV

Q: Wire and cable fire resistance to meet what standards, which can provide about, thank you!: Should be the line group: lighting a group of 2.5 square millimeters, an ordinary socket a group of 4 square millimeters, air conditioning a group of 6 square millimeters, kitchen and bathroom appliances a group of 4 square millimeters, so that after the down is not enough to put a separate group You say the high-power electrical outlet, the line to the square of the square mm to see your home how high-power electrical appliances, but advise you to use these high-power electrical appliances before the first to determine its current good, More than your home appliance load!

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