Infrastructure power cables/attached equipment Distribution power lines Low wind pressure insulated wires-6.6kV RW-ACSR/AC-OC (120㎟)

Infrastructure power cables/attached equipment Distribution power lines Low wind pressure insulated wires
Daiden Co., Ltd.

Daiden Co., Ltd.'s Response Status

Response Rate

100.0%

Response Time

14.7hours

Relatively Fast Response

About This Product

■Product features・Since it is possible to use lower-strength concrete poles than round electric wires, it is possible to reduce equipment costs.
・Compared to round electric wires, it is possible to have longer spans, reducing the number of poles installed.
・Longer utility poles can be used (resolving the problem of separation distance).
・It is possible to increase the capacity of the distribution line (increase the wire size) without reinforcing the support.
・Even if the safety factor of supports has decreased due to shared racks, etc., the safety factor can be restored by replacing the wires with low wind pressure wires.
・For newly constructed lines, not only the poles but also the branch lines and anchors can be made smaller.

characteristics
■Mechanism of wind pressure reductionA large vortex called a Karman vortex is generated behind a wire placed in a wind current. The air pressure in this vortex is lower than outside, so the pressure difference with the front creates a large wind pressure on the wire. On the other hand, when grooves are applied to the wire surface, the flow of wind along the surface becomes turbulent, and the wind sticks to the surface for a long time.As a result, the area of ​​low pressure behind the wire is reduced and the wind pressure is reduced. will be done.

■Wind pressure characteristic exampleThis low wind pressure insulated wire was jointly developed with Kyushu Electric Power Co., Inc., and its wind pressure characteristics were confirmed through wind tunnel experiments at the Institute of Applied Mechanics, Kyushu University. In addition, this product was commercialized with the help of the same research institute, which provided fluid dynamics technology and advice on field testing methods.

■Results of field tests on snow-repellent effectsIt has been confirmed through four years of field tests that the snow-repellent performance of low wind pressure electric wires is equivalent to that of SN (finned) electric wires.

Model
There are 8 models for this product.

Product
Infrastructure power cables/attached equipment Distribution power lines Low wind pressure insulated wires

Handling Company
Daiden Co., Ltd.

Categories

Cables

Electric Power Cables

Cables

Multi Core Cables

Surge Countermeasures

Insulated Wire

960+ people viewing

Last viewed: 2 hours ago

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8 Models of Infrastructure power cables/attached equipment Distribution power lines Low wind pressure insulated wires

Click on the part number for more information about each product

Part Number	Price (excluding tax)	Wind pressure load Class A (40m/s) (Pa)	Wind pressure load Class C (28m/s) (Pa)	Wind pressure load 50m/s	Wind pressure load 45m/s	Continuous allowable current (A)	Withstand voltage (kV/1 minute)	Insulator thickness approx. (mm)	DC maximum conductor resistance (20℃) (Ω/km)	Number of grooves (pieces), groove depth approx. (mm)	Mechanical properties Linear expansion coefficient (1/K)	Mechanical properties Elastic modulus (kN/mm2)	Mechanical properties Conductor tensile load (kN)	Approximate mass (kg/km)	Minimum insulation resistance (20℃) (MΩ･km)	Conductor continuous allowable temperature (℃)	Conductor composition Aluminum (pieces/shape)	Conductor outer diameter approx. (mm)	Finished outer diameter approx. (mm)	AC maximum conductor resistance (90℃) (Ω/km)	Reactance (900mm between equivalent lines) (Ω/km)	Conductor composition Steel (pcs/mm)
6.6kV RW-ACSR/AC-OC (120㎟)	Available upon quote	700	425	1,140	900	315	12	2.9	0.24	24,0.42	208×10^-7	70.8	30.67	560	1,000	90	6/SB	13.6	19.4	0.369	0.387	1/4.2
6.6kV RW-AL-OC (200㎟)	Available upon quote	710	410	1,170	920	455	12	3.3	0.15	24,0.38	230×10^-7	61.8	26.28	755	1,000	90	19/SB	17	23.6	0.193	0.37	-
6.6kV RW-AL-OC (240㎟)	Available upon quote	710	480	1,150	910	510	12	3.4	0.126	18,0.48	230×10^-7	61.8	29.9	880	1,000	90	19/SB	19	25.4	0.162	0.364	-
6.6kV RW-AL-OC (400㎟)	Available upon quote	780	550	940	850	700	12	3.3	0.0757	18,0.44	230×10^-7	61.8	52.56	1,400	1,000	90	37/SB	23.8	30.4	0.0982	0.345	-
22/33kV RW-ACSR/AC-OC (120㎟)	Available upon quote	730	440	1,120	900	310	Twenty five	3.3	0.24	24,0.35	208×10^-7	70.8	30.67	585	1,500	90	-	13.6	20.2	0.369	0.387	1/4.2
22/33kV RW-AL-OC (200㎟)	Available upon quote	720	490	1,110	900	455	Twenty five	3.8	0.15	18,0.50	230×10^-7	61.8	26.28	785	1,500	90	19/SB	17	24.6	0.193	0.37	-
22/33kV RW-AL-OC (240㎟)	Available upon quote	700	470	1,170	910	505	Twenty five	3.9	0.126	18,0.50	230×10^-7	61.8	29.9	920	1,500	90	19/SB	18.6	26.4	0.162	0.364	-
22/33kV RW-AL-OC (400㎟)	Available upon quote	800	550	930	860	690	Twenty five	3.8	0.0757	18,0.46	230×10^-7	61.8	52.56	1,440	1,500	90	37/SB	23.8	31.4	0.0982	0.345	-

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About Company Handling This Product

Daiden Co., Ltd.

Response Rate

100.0%

Response Time

14.7hrs

Japan

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Infrastructure power cables/attached equipment Distribution power lines Low wind pressure insulated wires Daiden Co., Ltd.

Daiden Co., Ltd.'s Response Status

About This Product

■Product features

■Mechanism of wind pressure reduction

■Wind pressure characteristic example

■Results of field tests on snow-repellent effects

8 Models of Infrastructure power cables/attached equipment Distribution power lines Low wind pressure insulated wires

Customers who viewed this product also viewed

Other products of Daiden Co., Ltd.

About Company Handling This Product

Related search keywords

Infrastructure power cables/attached equipment Distribution power lines Low wind pressure insulated wires
Daiden Co., Ltd.