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Henan Signi Aluminum Co.,Ltd

Addresss:No.89 Science Avenue, National HI-Tech Industry Development Zone, Zhengzhou, Henan

Postal Code:450001.

Tel: +86-371- 55689814, +86-371-55686476

Mob: +86 13673369503

Sales manager: Alex Lu

Fax:+86-371-55686475

E-mail: inquiry@signialuminium.com

Full Screen Insulated Aluminum Alloy Tubular Busbar

Full Screen Insulated Aluminum Alloy Tubular Busbar

The insulation structure of composite shielded tubular insulated busbar has the characteristics of both cable and groove busbar, so it can be widely used not only in indoor and outdoor overhead laying, but also in cable trench, cable tunnel, cable interlayer, wind power tower and other occasions. In foreign countries, similar busbar products are also known as "tube cables"... Send InquiryChat Now

Product Details

Full screen insulated aluminum alloy tubular busbar

 

1) Implementation standard: GB/T27676-2011 aluminum and aluminum alloy bus tube pipe conductor or ASTM B 317M-07

2) Product Alloy:6Z63 6063G  6R05  6101 6061 3A21 1060 1070A

3) Product Temper: H18  T10  T6  T6511

4) The product is hollow tubular structure with glossy surface, beautiful appearance and uniform size.

5)The outer diameter is from 60mm to 450mm.

6)The Wall thickness from 3mm to 15mm.

7) The length of a single bus tube pipe conductor can reach up to 15 meters.

 13.Full screen insulated aluminum alloy tubular busbar-2

1. Product Model of Full screen insulated aluminum alloy tubular busbar

Rated

Voltage

Rated current

Conductor

Specifications

Thermal stability current effective value

(4S)

Dynamic current peak value

Sectional area

Bending radius

Temperature rise

Interphase

distance

maximum outreach of cable

0.4kv-

35kv

A

mm

KA

KA

m㎡

mm

K

mm

m

1250

Φ80x5

50

125

1178





1600

Φ80x6

50

125

1394

350

≤40

≥275

≤8

2000

Φ100x6

50

125

1771

2500

Φ100x8

50

125

2312

3150

Φ100x10

63

125

2827

4000

Φ100x12

80

160

3315

 

2. Adapt to the installation of environmental sites of Full screen insulated aluminum alloy tubular busbar

Indoor installation or outdoor installation

Overhead, wall climbing, underground cable trench, cable interlayer, cable tunnel

Conditions of use

Altitude: ≤ 1000m (above 1000m please note it).

Maximum wind speed: 35m/s

Ambient temperature:-40℃~+50℃

Maximum daily temperature difference: 25℃

Maximum relative humidity: 95%

Sunshine intensity: 0.1W/cm

Icing thickness: 10mm

Seismic intensity: degree VIII, horizontal acceleration: 0.25g, vertical acceleration: 0.125g

Contamination level: grade IV (calculated at the highest voltage)

Creepage distance: 3.5cm/kv

Electrical properties

Rated voltage: 0.4kV ~ 35kV

Rated current: 1000A ~ 12000A

Rated frequency: 50Hz

Maximum working voltage: 0.4/1.0kv; 10/12kv; 20/24kv; 35/40.5kv

Temperature rise restriction

The temperature rise is less than 40K and the temperature rise limit is 120℃.

Partial discharge level

The apparent discharge volume under 1.5Um/√3 voltage is not greater than 20pc.

The apparent discharge volume under 1.05Um/√3 voltage is not greater than 7pc.

Dielectric loss angle

Under the voltage of 1.05Um/√3, the dielectric loss angle is tgδ≤0.005.

 

3. Composite shielded tubular busbar structure

The insulation structure of composite shielded tubular insulated busbar has the characteristics of both cable and groove busbar, so it can be widely used not only in indoor and outdoor overhead laying, but also in cable trench, cable tunnel, cable interlayer, wind power tower and other occasions. In foreign countries, similar busbar products are also known as "tube cables"

 

Insulation level of composite shielded tubular insulated busbar

Rated working voltage

Power frequency withstand voltage(1MIN)

Lightning shock(1.2/50)

10KV Product

45KV

75KV

20KV Product

65KV

125KV

35KV Product

95KV

185KV

 

4.Product Comparison of Full screen insulated aluminum alloy tubular busbar

 

Table 1

Comparison of technical performance between tubular insulated busbars and other conductors


Tubular insulated busbars

Rectangular busbars

Cables

Isolated phase bus bar

Carrying

capacity

large

larger

 small

large

Insulation performance

strong

weak

strong

    Normal

Mechanical strength

Very high

higher

low

higher

Heat dissipation performance

Good

Normal

Bad

Good

Loss

low

high

high

high

Electrical shock resistance

Very strong

weak

strong

weak

Anti environmental interference

strong

weak

strong

weak

Space requirements

small

large

small

Very large

Installation

span

6-8M,No bridge frame

Small span,need crane span structure

mall span,need crane span structure

mall span,need crane span structure

Difficulty of installation

Simple, motorized flexible

Complex and difficult to install

Do not bend at will.

Complex and difficult to install

 13.Full screen insulated aluminum alloy tubular busbar-2

Table 2

Comparison table of economic performance between tubular insulated busbars and other conductors


Tubular insulated busbars

Rectangular busbars

Cables

Isolated phase bus bar

Busbars Cost

higher

low

low

higher

Busbar loss

low

High

High

High

Infrastructure

Cost

low

high,need crane span structure

higher,need crane span structure

high,need crane span structure

Installation

cost

Bear by Factory

High

High

High

later

maintenance

Maintenance free, low cost.

Regular maintenance, higher

Maintenance free, low cost.

Regular maintenance, higher

Real life

30Years

15-20Years

30Years

15-20Years

later

maintenance

Basically no maintenance

Regular and high cost

less

Regular and high cost

Comprehensive cost

low

Normal

low

High

 

5. Product characteristics of Full screen insulated aluminum alloy tubular busbar

The Full screen insulated aluminum alloy tubular busbar has the following advantages over traditional busbars:

1) Large current carrying capacity

The main body of the tubular busbar is hollow copper tube or aluminum alloy tube. The surface area is large, relative to the cable and rectangular busbar.

The current density distribution on the conductor surface is uniform, and the highest rated current can reach 12000A.

2) Good insulation performance, small space occupation and wide application scope.

Tube busbar are insulated by sealed composite shielding. The grounding potential of the enclosure is zero, and the electric field distribution on the busbar surface is uniform.

Electrical insulation performance is strong. It can be directly passed through cable trench, cable interlayer and cable tunnel.

Conventional busbar (rectangular busbar and Separated-phase closed busbar) usually have higher requirements for environment and space.

Therefore, in many places where the environment is harsh and the space is narrow, the use of conventional busbar is greatly limited or even impossible to use. The tubular insulated busbar, fearless of harsh environment and occupying very little space for installation, is especially conducive to the layout in narrow space, and its application scope is wider and more reliable.

3) High mechanical strength.

The allowable stress of the main body of the tubular busbar is four times of that of the rectangular busbar. It can withstand large short circuit current and high mechanical strength.

So that the maximum length of busbar support can reach 8 meters.

4) Good heat dissipation, Low Temperature Rise

The tubular busbar is a hollow conductor, and there are ventilation holes at both ends of the bus bar.The inner diameter air channel can naturally form hot air convection.

The heat dissipation condition is better than that of the conventional busbar.

5) Low loss

The shape of the tubular busbar determines that its surface skin effect coefficient is low,Kf≤1 and the AC resistance is small.

So the bus power loss is small. The dielectric loss of the insulating layer of the composite shielded insulated busbar is less than 0.01%.

6) High heat resistance of insulating materials.

Polytetrafluoroethylene (PTFE) is the main insulating material of tubular insulated busbar. It has excellent electrical and chemical stability.

It can work normally in the temperature range of -200℃~+200℃ with low dielectric loss, flame retardant, aging resistance and other insulation materials,the service life of the product is more than 30 years.

7) Strong resistance to electrical shock.

The results of dynamic stability test show that the copper tube master with voltage 10KV and rated current 4000A can withstand 63KA (4S) short circuit current impact.

The busbar can be directly fixed on the steel frame or concrete bracket, and the wall bushing and the post insulator can be eliminated,has strong anti vibration ability.

8) Free from environmental interference and high reliability.

Each phase of the tubular busbar is closed and shielded, and there is no condensation inside, and the external humidity is eliminated,the ground and interphase short circuit faults caused by dust and foreign objects are highly reliable.

9) The busbar structure is simple, clear, easy to install and free from maintenance.

Tubular busbar structure is similar to cable, reliable insulation and high safety. Once installation is successful, life is free of maintenance.

 

 

 

 

 

6,Common tubular busbar, Liner tube & sealing ball size or sealing cover size.

Main Bus Pipe Tube

Liner Bus Pipe Tube

Sealing ball  or

Sealing cover

OD

(mm)

Wall Thickness

(mm)

OD

(mm)

Wall Thickness

(mm)

OD

(mm)

80

4

71

3

70

90

5

79

4

79

100

5

89

5

89

110

5

99

5

99

120

5

109

5

109

130

7

115

7

115

150

7

135

7

135

150

10

129

10

129

170

7

155

7

155

170

10

149

10

149

200

10

179

10

179

250

10

229

10

229

 


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    Henan Signi Aluminum Co.,Ltd

    Addresss:No.89 Science Avenue, National HI-Tech Industry Development Zone, Zhengzhou, Henan

    Postal Code:450001.

    Tel: +86-371- 55689814, +86-371-55686476

    Mob: +86 13673369503

    Sales manager: Alex Lu

    Fax:+86-371-55686475

    E-mail: inquiry@signialuminium.com

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