KR100716408B1 - Insulation compound for submarine cable - Google Patents

Insulation compound for submarine cable Download PDF

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KR100716408B1
KR100716408B1 KR1020060010707A KR20060010707A KR100716408B1 KR 100716408 B1 KR100716408 B1 KR 100716408B1 KR 1020060010707 A KR1020060010707 A KR 1020060010707A KR 20060010707 A KR20060010707 A KR 20060010707A KR 100716408 B1 KR100716408 B1 KR 100716408B1
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Prior art keywords
polyethylene wax
polybutene
insulating compound
compound
submarine cable
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KR1020060010707A
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Korean (ko)
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박세은
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엘에스전선 주식회사
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/14—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with speed sensing devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/20—Controlling the acceleration or deceleration

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

본 발명은 해저케이블용 절연 화합물에 관한 것으로서, 제조공정이 간단하여 생산성이 우수하며, 비교적 저렴한 성분을 이용하여 절연 화합물의 사양을 만족할 수 있게 구성한 해저케이블용 절연 화합물을 제공하는 데 그 목적이 있다.The present invention relates to an insulation compound for submarine cables, and has an object of providing an insulation compound for submarine cables, which has a simple manufacturing process, is excellent in productivity, and is configured to satisfy the specifications of the insulation compound using relatively inexpensive components. .

상기와 같은 목적을 달성하기 위한 본 발명은 해저케이블에 이용되는 절연 화합물에 있어서, 폴리부텐(Polybutene)에 대해 중량비 7.5±2.5%의 폴리에틸렌 왁스(Polyethylene Wax)를 혼합하여 용해한 것을 기술적 특징으로 한다.The present invention for achieving the above object is characterized in that in the insulating compound used for the submarine cable, polybutene (Polybutene) by mixing a polyethylene wax (Polyethylene Wax) of 7.5 ± 2.5% by weight to melt.

해저케이블, 절연 화합물, 폴리부텐, 폴리에틸렌 왁스 Submarine cable, insulation compound, polybutene, polyethylene wax

Description

해저케이블용 절연 화합물{Insulation Compound for Submarine Cable}Insulation Compound for Submarine Cable

도 1은 일반적인 해저케이블을 나타낸 단면도이다.1 is a cross-sectional view showing a general submarine cable.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 전도체 20 : 전도체 스크린10: conductor 20: conductor screen

30 : 절연체30: insulator

본 발명은 해저케이블용 절연 화합물에 관한 것으로서, 특히, 제조공정이 간단하여 생산성이 우수하며, 비교적 저렴한 성분을 이용하여 절연 화합물의 사양을 만족할 수 있게 구성한 것이다.The present invention relates to an insulating compound for submarine cables, and in particular, the manufacturing process is simple, excellent productivity, and configured to satisfy the specifications of the insulating compound using a relatively inexpensive component.

도면에서, 도 1은 해저케이블의 단면도이다.1 is a cross-sectional view of the submarine cable.

도 1에 도시된 바와 같이, 해저케이블의 단면을 살펴보면, 동심에 전도체(10)가 위치하고, 전도체(10)의 둘레를 전도체 스크린(20)이 감싸며, 전도체 스크린(20) 둘레를 절연체(30)가 감싼다. 상기 절연체(30)는 종이로서, 유체 상태의 절연 화합물이 종이에 적셔진다.As shown in Figure 1, looking at the cross section of the submarine cable, the conductor 10 is located concentrically, the conductor screen 20 is wrapped around the conductor 10, the insulator 30 around the conductor screen 20 Wraps. The insulator 30 is paper, and the insulating compound in a fluid state is soaked in the paper.

상기 유체 상태의 절연 화합물은 소정의 점도를 갖고 있어야 한다. 그 이유는 전도체 스크린의 둘레를 따라 위치한 절연 화합물의 물량이 전도체 스크린 둘레를 따라 동일하여야 하는데, 절연 화합물의 점도가 낮을 경우에는 중력에 의해 케이블 하부 쪽에 집중되고, 점성이 높을 경우에는 종이에 주유함에 있어 어려움이 있기 때문이다.The insulating compound in the fluid state must have a predetermined viscosity. The reason is that the quantity of the insulating compound located along the circumference of the conductor screen should be the same along the circumference of the conductor screen. If the viscosity of the insulating compound is low, gravity is concentrated on the lower side of the cable. Because there is a difficulty.

아래의 표 1은 해저 케이블의 절연 화합물로서 만족해야할 사양을 나타내고 있다.Table 1 below shows the specifications to be satisfied as the insulating compound of the submarine cable.

Figure 112006008324557-pat00001
Figure 112006008324557-pat00001

한편, 표 1에 나타난 절연 화합물의 사양을 만족하는 종래의 절연 화합물로서, 두섹(Dussek) 사에서 생산하는 절연 화합물의 경우에 상기 사양은 만족하지만, 그 제조과정이 어렵고, 절연 화합물을 구성하는 성분이 고가라는 단점이 있다.On the other hand, as a conventional insulating compound that satisfies the specifications of the insulating compound shown in Table 1, in the case of the insulating compound produced by Dussek, the above specifications are satisfied, but the manufacturing process is difficult, and the components constituting the insulating compound This is expensive.

두섹 사에서 제조하는 절연 화합물은 광유에 합성유를 소량 첨가하고 산화방지제 등 레진을 극소량 첨가하여 제조한다.Insulation compounds manufactured by Dusec are manufactured by adding a small amount of synthetic oil to mineral oil and adding a small amount of resin such as an antioxidant.

종래의 절연 화합물의 특성은 표 2에 나타내고 있다.The characteristics of the conventional insulating compound are shown in Table 2.

본 발명은 앞서 설명한 바와 같은 종래 기술의 문제점을 해결하기 위하여 발명된 것으로서, 제조가 간단하여 생산성이 우수하며, 더불어 저가의 성분을 이용하여 비용을 절감하면서도 상기 절연 화합물의 사양을 만족하는 해저케이블용 절연 화합물을 제공하는 데 그 목적이 있다.The present invention has been invented to solve the problems of the prior art as described above, for the submarine cable that satisfies the specifications of the insulation compound while reducing the cost by using a low-cost component, the productivity is simple and easy to manufacture The purpose is to provide an insulating compound.

상기와 같은 목적을 달성하기 위한 본 발명은 해저케이블에 이용되는 절연 화합물에 있어서, 폴리부텐(Polybutene)에 대해 중량비 7.5%의 폴리에틸렌 왁스(Polyethylene Wax)를 혼합하여 용해한 것을 기술적 특징으로 한다.The present invention for achieving the above object is characterized in that in the insulating compound used in the submarine cable, polybutene (Polybutene) by mixing a polyethylene wax (Polyethylene Wax) of 7.5% by weight to melt.

또한, 본 발명의 바람직한 실시예에 따르면, 상기 폴리부텐은 분자량이 900~1000이고, 20℃에서 밀도가 0.88g/cm3이며, 100℃에서 점도가 210~250cSt인 특성을 가지며, 상기 폴리에틸렌 왁스는 분자량이 2500~3500이고, 20℃에서 밀도가 0.92g/cm3이며, 140℃에서 점도가 190~410cSt인 특성을 갖는다.In addition, according to a preferred embodiment of the present invention, the polybutene has a molecular weight of 900 ~ 1000, a density of 0.88g / cm 3 at 20 ℃, has a viscosity of 210 ~ 250 cSt at 100 ℃, the polyethylene wax Has a molecular weight of 2500 to 3500, a density of 0.92 g / cm 3 at 20 ° C., and a viscosity of 190 to 410 cSt at 140 ° C.

아래에서는 본 발명에 따른 해저케이블용 절연 화합물에 대해 구체적으로 설명한다.Hereinafter, the insulating compound for submarine cables according to the present invention will be described in detail.

해저케이블용 절연 화합물은, 폴리부텐(Polybutene)에 폴리에틸렌 왁스(Polyethylene Wax)를 첨가한 것으로서, 폴리부텐에 대해 중량비 7.5±2.5%의 폴리에틸렌 왁스를 첨가한다. 그리고 상기 폴리에틸렌 왁스가 폴리부텐에 완전히 용해되도록 한다. 만약 폴리에틸렌 왁스가 완전 용해되지 않을 경우에 폴리에틸렌 왁스가 이물질로 작용하게 된다.The insulation compound for submarine cables is obtained by adding polyethylene wax to polybutene, and adding polyethylene wax having a weight ratio of 7.5 ± 2.5% to polybutene. And the polyethylene wax is completely dissolved in polybutene. If the polyethylene wax is not completely dissolved, the polyethylene wax may act as a foreign material.

여기에서, 폴리에틸렌 왁스를 혼합하는 이유는 절연 화합물의 점도를 맞추기 위한 것이다.Here, the reason for mixing polyethylene wax is to match the viscosity of an insulating compound.

해저 케이블은 유압을 조절하기가 어렵기 때문에, 60℃에서 약 1150±50cSt를 만족하여야 한다. 만약 폴리에틸렌 왁스의 첨가량이 중량비 10%를 초과할 경우에 점도가 너무 높아서 주유에 어려움이 있을 뿐만 아니라, 케이블을 구부렸을 때에 공극이 생길 우려가 있다.Since submarine cables are difficult to control hydraulic pressure, they should satisfy about 1150 ± 50 cSt at 60 ° C. If the amount of polyethylene wax added exceeds 10% by weight, the viscosity is so high that it is difficult to lubricate, and there is a fear of voids when the cable is bent.

반대로 중량비 5%미만 일 경우에는, 해저케이블 설치 시에 절연 화합물이 아래 쪽으로 흘러내릴 우려가 있다.On the contrary, when the weight ratio is less than 5%, the insulating compound may flow downward when the submarine cable is installed.

아래의 표 2에서는 이와 같이 제조된 절연 화합물의 특성과 종래 두섹 사에서 제조한 절연 화합물의 특성에 대해 비교하고 있다.Table 2 below compares the properties of the insulating compound prepared as described above with those of the insulating compound manufactured by Dusec.

Figure 112006008324557-pat00002
Figure 112006008324557-pat00002

이와 같이 본 발명에 따라 제조된 절연 화합물의 특성과 두섹 사의 절연 화합물의 특성은 거의 유사하며, 표 1에 나타낸 절연 화합물의 사양을 만족한다.Thus, the properties of the insulating compound prepared according to the present invention and the properties of the insulating compound of Dusec Inc. are almost similar, satisfying the specifications of the insulating compound shown in Table 1.

한편, 본 발명의 절연 화합물 제조에 따른 폴리부텐 및 폴리에틸렌 왁스의 특성은 아래 표 3에 나타난 바와 같다.On the other hand, the properties of the polybutene and polyethylene wax according to the production of the insulating compound of the present invention are shown in Table 3 below.

Figure 112006008324557-pat00003
Figure 112006008324557-pat00003

앞서 상세히 설명한 바와 같이, 본 발명의 해저케이블용 절연 화합물은 폴리부텐에 폴리에틸렌을 혼합하여 용해하는 과정만으로도 제조 가능하기 때문에, 제조가 간단하여 생산성이 우수하다는 장점이 있다.As described in detail above, since the insulation compound for submarine cables of the present invention can be manufactured only by mixing and dissolving polyethylene in polybutene, there is an advantage in that the production is simple and the productivity is excellent.

또한, 본 발명의 해저케이블용 절연 화합물은 쉽게 구매할 수 있으며, 저가의 성분을 이용하여 제조할 수 있어 제조단가를 낮출 수 있다는 장점이 있다.In addition, the insulation compound for submarine cables of the present invention can be easily purchased, and can be manufactured using a low-cost component has the advantage that the manufacturing cost can be lowered.

이상에서 본 발명의 해저케이블용 절연 화합물에 대한 기술사상을 첨부도면 과 함께 서술하였지만, 이는 본 발명의 가장 양호한 실시예를 예시적으로 설명한 것이지 본 발명을 한정하는 것은 아니다.Although the technical idea of the insulating compound for submarine cables of the present invention has been described with reference to the accompanying drawings, this is illustrative of the best embodiment of the present invention and is not intended to limit the present invention.

Claims (2)

해저케이블에 이용되는 절연 화합물에 있어서,In the insulating compound used for submarine cables, 폴리부텐(Polybutene)에 대해 중량비 7.5±2.5%의 폴리에틸렌 왁스(Polyethylene Wax)를 혼합하여 용해한 것을 특징으로 하는 해저케이블용 절연 화합물.Insulation compound for submarine cables, characterized in that the polybutene (Polybutene) is dissolved by mixing polyethylene wax (Polyethylene Wax) of 7.5 ± 2.5% by weight. 제1항에 있어서,The method of claim 1, 상기 폴리부텐은 분자량이 900~1000이고, 20℃에서 밀도가 0.88g/cm3이며, 100℃에서 점도가 210~250cSt인 특성을 가지며,The polybutene has a molecular weight of 900 ~ 1000, a density of 0.88 g / cm 3 at 20 ℃, a viscosity of 210 ~ 250 cSt at 100 ℃, 상기 폴리에틸렌 왁스는 분자량이 2500~3500이고, 20℃에서 밀도가 0.92g/cm3이며, 140℃에서 점도가 190~410cSt인 특성을 갖는 것을 특징으로 하는 해저케이블용 절연 화합물.The polyethylene wax has a molecular weight of 2500 ~ 3500, the density of 0.92g / cm 3 at 20 ℃, the insulating compound for submarine cables, characterized in that the viscosity is 190 ~ 410 cSt at 140 ℃.
KR1020060010707A 2006-02-03 2006-02-03 Insulation compound for submarine cable KR100716408B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960006148B1 (en) * 1992-12-14 1996-05-09 한화종합화학주식회사 Flame-retardant resin composition for communication cable coating
KR20040038183A (en) * 2002-10-31 2004-05-08 한국전력공사 Supersmooth semiconductive resin composition and power cable using the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960006148B1 (en) * 1992-12-14 1996-05-09 한화종합화학주식회사 Flame-retardant resin composition for communication cable coating
KR20040038183A (en) * 2002-10-31 2004-05-08 한국전력공사 Supersmooth semiconductive resin composition and power cable using the same

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