10 kv oil-immersed paper three core insulation heat shrinkable cable terminal head craft

by:Mings     2020-06-25

with the progress of technology of power cable accessories, plus the processing technology of rapid mature, 10 kv oil-immersed paper three core insulation heat shrinkable cable terminal head craft that formed the cable accessories of this emerging industry. It is one of the semiconductor device was born earlier, its application is very wide also, let's take a look at 10 kv oil-immersed paper three core insulation heat shrinkable cable terminal how the craft of the head?

1。 Cutting kai packed layer

since hemp was sheath incision in 50 mm ( Go grease, paint) With a copper cable tie binding, after the rest of the strip. Note shall not exceed the kai two-thirds of thickness, cutting depth of incision should be flush, there should be no sharp corners and sharp edges, don't hurt while cutting lead inner package.

2。 Clean lead packages

in kai fracture 10 - up 200 mm range, use the heater uniform baking lead covered surface, and then use clean surface treatment will lead stearate package. Pay attention to the baking temperature shoulds not be too high, so as not to damage the inner insulation structure.

3。 Installation of ground wire

the ground wire with copper cable tie tightly packed in the package and lead to paint on steel kai, and weld. Attention to plunge into silk of not less than 3, welding surface not less than 1/3 of the circumference of a circle, solder joint and the firm should handle the flat wire head, there should be no sharp corners, burrs. Ground wire sealing section should do moistureproof processing, Permeability of tin or winding and sealant) 。

4。 Cutting lead packages

keep kai pack fracture lead covered within the scope of up to 120 mm, the rest of the strip. Note shall not exceed the lead sheath thickness cutting depth for two-thirds, incision should be flush, there should be no sharp corners and sharp edges, don't hurt the inner sense while cutting the insulation.

5。 Bilge bell

in the lead pack fracture within 10 mm, assortments of lead plate carefully will lead covered with bamboo into bell shape, lead bell mouth diameter of about 1 the diameter of the package. 2 times. Note don't hurt while expansion lead lining featuring insulation.

6。 Cutting featuring the insulating layer and the filler

will be featuring insulation outside the semi conductive paper strip to bell within roots and retain beyond 20 mm bell turn-key insulating layer, the rest of the strip and padding along with the separate line core. Idea semi conductive paper edges, featuring insulation should be flush, there should be no sharp corners and burrs. Strip edge process shall not be hurt and insulation.

7。 Winding and ptfe belt

on the heat shrinkable cable accessories of each phase respectively from three prong roots and along the cable core insulation paper around the package direction, half around a layer of teflon belt. Note the end application of polyoxyethylene temporary fixed insulating tape.

8。 Fixed partition tubing

the person respectively set on the cable each phase through tubing to three prong roots, and starting from the roots of heat shrink. Note heating flame in the direction of the contraction, soft hard moderate and constantly rotating, moving.

9。 Around the bag filling glue

glue around the bag filled with oil resistant cable branch root gap and turn-key insulation exposed part of the sag, and throws took shape, diameter slightly larger than cable accessories ontology ( About smart mm) 。 Clean up in the ground and in the direction of the cable lead covered slit winding and a layer of sealant 30 mm wide.

10。 Fixed finger

will be conductive to set set to fixed line core roots after heating, to shrink the roots, then shrink sleeve and fingers. Note heating flame in the direction of the contraction, soft hard moderate and constantly rotating, moving.

11。 Fixed conductive sheath

the conductive sheath lap 50 mm with three sets of cuff end, then begin from the end of the uniform heating. Note heating flame in the direction of the contraction, soft hard moderate and constantly rotating, moving.

12。 Around the bag filling glue

in three sets of the fingers around the bag filled with glue, the steps to form a smooth transition. Pay attention to around the cladding shall be continuous and smooth surface.

13。 Fixed the stress control tube

the stress control tube lap with three sets of finger tip of 20 mm, and from that point on fixed heating. Note heating flame in the direction of the contraction, soft hard moderate and constantly rotating, moving.

14。 Around the bag filling glue

in stress control tube front around the bag filling adhesive, the steps to form a smooth transition. Pay attention to around the cladding shall be continuous and smooth surface.

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