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Eta-com
Cast resin Insulated Busbars
The ‘betobar-r’ cast resin insulated busbars
consist of copper or aluminium conductors, embedded in an enclosure of a
non flammable, self-extinguishing and homogeneous insulation mix based
on epoxy cast-resin with mineral fillers ensuring high mechanical
strength and chemical withstand. Standard types are available for
current ratings up to 6300A and voltage ratings up to 24kV. Systems for
higher current ratings or DC applications are possible.
The busbar line consists of a number of prefabricated elements. The
electrical jointing of the conductors is achieved by means of double
fish plates and high tensile steel bolts. The junctions and the
element ends are overcast with the same insulation mix as used for
the elements. In this way an integral insulating enclosure to
IP68.7 is guaranteed over the full length of the busbar run.
Straight junctions and elbow junctions are available each
facilitating installation adjustments of 10-20mm per standard
junction. Element Shapes of cast-resin bus bars
The ‘betobar-r’ cast-resin bus bar system
is available in a wide range of standard element shapes, forms and
lengths fabricated to suit the typical project requirements:
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Straight elements
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Elbow elements, flat-wise & on edge
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Z (double elbow) & T elements
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Flanged terminal elements
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Tap-off facilities & phase-transfer elements
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Thermal expansion compensation elements
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Tailor-made terminal elements for
transformer, generator or switchboard connection
Busbar Characteristics
The most important advantages of the ‘betobar-r’
system are:
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High short-circuit withstand
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Non flammable, self-extinguishing insulation
to IEC 332 & DIN 4102 part 1
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Electrical continuity E30 – to DIN 4102 part
12
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Fire-proof wall bushings, A60, H60, S60 to
S180 to DIN4102 part 9
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Fire resistant to IEC 331 (LV)
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Excellent resistance to atmospheric pollution
& a wide range of chemicals (list on request)
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Integral insulation & a high degree of
protection (IP68.7)
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Suitable for tropical climates (withstands
rodents, insects, fungi)
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Easy assembly & short installation times
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Maintenance free
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Code EEX m II T5 certificate to EN 50028
Busbar Types
The ‘betobar-r’ busbars can be supplied in the
following standard types: For Low Voltage:
Up to 1000 V AC 45-55 Hz – three phase conductors and/or:
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Protective earth 50, 100, 150 & 200% neutral
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Alu-conductors range up to 5250 Amps
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Cu-conductors range up to 6500 Amps
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For DC applications up to 16.000 Amps & 1500
V DC
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To IEC-439-2 400 to 6500 Amps – 1000 V
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Models with 3 phase – 3-wire & 4-wire with
full size neutral & earth conductor.
For Medium Voltage:
| Type |
Current rating |
Voltage rating |
| SH |
up to 2000 A |
up to 7.2 kV |
| PH |
up to 3600 A |
up to 17.5 kV |
| MH |
up to 5000 A |
up to 24.0 kV |
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To IEC-466 800 A to 6300 Amps
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In compact types for 3,6 – 7,2 – 12 & 17,5 kV
also with segregated phases for 24 kV generator busbar
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Other current ratings on request
Test
All technical data specified, such as current
ratings and temperature rise, insulation resistance, voltage and
short circuit withstand, have been certified in accordance with
international standards (IEC, VDE or BS) by the independent testing
stations K.E.M.A., LABORELEC, LCIE. Assembled elements with cast
junctions were submitted for type testing.
Applications for:
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Main busbars in powerstations
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Energy distribution main feeders
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Total energy installation
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Bus-coupler connections
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Machine (motor) feeders
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Rising mains in high-rise multistory
buildings
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Transformer stations in: industrial plants,
off-shore platforms, public buildings, hospitals, hotels, banks,
powerstations.
 Request information:
Eta-com
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Email this company
Eta-com UK Preedcrete Ltd
Unit 19/20 Horsham Court
City Business Centre
6 Brighton Road
Horsham
West Sussex
RH13 5BB
Tel: 01403 265767
Fax: 01403 254131
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