LB Series

LV Cast Resin Insulated Busway(Aluminum Busway)

TECOBAR Low Voltage Cast-Resin Insulated Busway is developed for electrical systems below 1kV.

The product has features of safety and compact. It is designed to use the insulation material to perform cast resin sealing to the copper (aluminium) conductor. The insulation material is cast resin which contains non-organic volcanic rock with the features of excellent insulation characteristics, mechanical strengh, humidity-proof, non-combustible, and self-extinguishing .
Features
Specification
Model LB12EA LB16EA
Conductor Marteial Aluminum
IP / IK IP68 / IK 10
Frequency (Hz) 50 / 60 Hz
Rated Voltage (V) 1000V
ln (A) norm 2000 2500
ln (A) 35/40°C 2100 2540
Cond mm2 2 x 720 2 x 960
R20 μΩ/m 20.0 14.3
R60 μΩ/m 23.1 16.5
R90 μΩ/m 25.5 18.2
X μΩ/m 18.5 13.9
lcw kA/1Sec 80 90
Ipeak kA 176 198
Ploss 90 W/m 337.4 352.9
Total Weight kg/m 53.5 63.6
B x H mm 168 x 160 168 x 200
Model LB08DA LB12DA LB16DA
Conductor Marteial Aluminum
IP / IK IP68 / IK 10
Frequency (Hz) 50 / 60 Hz
Rated Voltage (V) 1000V
ln (A) norm 3150 4000 5000
ln (A) 35/40°C 3200 4250 5400
Cond mm2 4 x 480 4 x 720 4 x 960
R20 μΩ/m 14.6 10.0 7.9
R60 μΩ/m 16.9 11.6 9.1
R90 μΩ/m 18.6 12.8 10.1
X μΩ/m 13.6 10.4 10.2
lcw kA/1Sec 100 120 130
Ipeak kA 220 264 286
Ploss 90 W/m 571.9 690.9 881.2
Total Weight kg/m 79.0 101.1 135.0
B x H mm 468 x 120 468 x 160 468 x 200
* Conductor
1ф3W represents single phase, three wires
3ф3W represents three phases, three wires
3ф4W represents three phases, four wires
1/2G represents grounding phase 50% of rated current.
200% N and aluminum grounding conductor optional
* Applicable to DC requirement
* Please refer to the temperture correction coefficient of rated current on page 24 while ambient temoerature exceeds 40°C
* Please contact us directly if the specification is not shown

Features
Applicable Scope:
TECOBAR busway is manufactured in accordance with IEC 60439-1, IEC 60439-6 and CNS 14286. The elements included as below:
  1. Straight elements, elbow elements, geometrical shape elements, phase-switch elements, expansion elements, transfer elements, split elements and terminal elements.
  2. Distribution unit: There are fixed type take-off unit and draw-out type plug-in unit.
  3. * Note: The plug-in leads shall be reserved in advance. Therefore, the number of plug-in unit shall be confirmed while purchase.
Condition of Use:
TECOBAR busway is composed of the elements listed in item 3.1. The elements are connected through junction units on site before cast molding with insulation mix to complete the low voltage busway. Conditions for TECOBAR:
  1. Altitude: below 2000m, indoor and outdoor site.
  2. Ambient temperature: -20℃~65℃
  3. Ambient humidity: 0%~100%
Technical Specifications:
  1. Rated Voltage V : AC1000V.
  2. Rated Current A : 400A~6569A.
  3. Frequency Hz : 50/60.
  4. System : 1Φ3w, 1Φ3w+1/2G, 1Φ3w+G, 3Φ3w, 3Φ4w, 3Φ3w+1/2G, 3Φ3W+G, 3Φ4W+1/2G, 3Φ4W+G.
  5. Conductor Material : Copper and Aluminum.
    Purity : 99.9% Conductivity : Above 98% IACS.
    According to standards : JIS H3140 , DIN 1787, DIN 1759, DIN 40500.
  6. Electrical characteristics of each TECOBAR element (less than 4m)
    Insulation capabilities :
    ◎ AC voltage withstand phase to phase is AC 5kV/1min.
    ◎ Insulation resistance phase to phase is ≧ 2GΩ/DC 1kV.

    Fireproof :
    ◎ In accordance with CNS 14286 at 840℃ for 30 minutes.
    ◎ In accordance with IEC 60331-21 at 950℃ for 3 hours.
    ◎ In accordance with BS 6387 950℃ for 3 hours.

    Protection degree :
    ◎ In accordance with IEC 60529 IP68.

    Mechanical impacts :
    ◎ In accordance with IEC 60068-2-75 IK10.

    Grounding :
    ◎ Internal grounding for TECOBAR busway system.

Product Design Theory
1. Temperature correction coefficient for rated current
Maximum ambient temperature ℃ 20 25 30 35 40 45 50 55 60
Daily average ambient temperature ℃ 15 20 25 30 35 40 45 50 55
Correction coefficient 1.18 1.14 1.09 1.05 1.00 0.94 0.88 0.82 0.75
2.Voltage drop calculation
  • △U =√3 x Is x L x (R cosθ+X sinθ) x 10-6
  • △U =Voltage drop (Volts)
  • Is =Load current (Amps)
  • L =Line length (m)
  • R =Resistance (μ Ω/m)
  • X =Reactance (μ Ω/m)
  • cosθ =Power factor
  • sinθ =√(1-cos 2θ)
3. Product model identification
LA 08 E C 5 - 480
LA Product series code LA:Low voltage 1kV LA series
LB:Low voltage 1kV LB series
08 Copper bar width 04 w=40mm , 08 w=80mm , 12 w=120mm
E Single/Double conductor of each phase E Single line D Double line
C Conductor type C Copper conductor A Aluminium conductor
5 No. of conductors
480 Cross sectional area of 2 conductor(mm 2 ) 480mm 2
4.For calculation of general product data or technical information, please contact with manufacturer or local agency.

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LV Cast Resin Insulated Busway(Aluminum Busway)
TECOBAR Low Voltage Cast-Resin Insulated Busway is developed for electrical systems below 1kV. The product has features o ...
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