hager KEH31D00S3LMA, System Manual

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Glossary
88 Technical changes reserved
Busbar trunking unit BTU
(BTU: busbar trunking unit). According to EN 61439-6, a busbar trunking unit
BTU-Is a complete unit of a busbar trunking system BTS. The complete unit
includes
-
the busbars,
-
the busbar supports,
-
the insulation of the external housing,
-
fastening parts and parts connecting to other units.
Bus trunking units BTU have various geometric shapes, for example, straight
length, T-elements, change directions.
-
BTU with plug-in
If a busbar trunking unit has been designed by the original manufacturer
(Hager) so that tap-off units can be connected at defined points, one speaks
of a busbar trunking unit with plug-in. The variant of the Hager unibar H
busbar system with protection type IP55/IP65 provides various options for
connecting tap-off units to busbar trunking units with plug-in.
-
BTU with fire barrier material
If an entire busbar trunking unit or a part of a busbar trunking unit is intended
to prevent the propagation of fire between parts of a building for a certain
time, one speaks of a busbar trunking fire barrier unit.
EN 61439
The EN 61439 standard series replaced the EN 60439 standard series. The
EN 61439 standard series has the goal of harmonising the rules and requirements
for low-voltage switching equipment combinations.
The valid part of the EN 61439 series of standards is always the applicable part
of the standard, e.g. EN 61439-6 busbar trunking systems (busways) together
with Part 1 of the standard (EN 61439-1).
Connection between European standard and International standard
European
standard International
standard German standard Classification VDE
specifications
EN 61439
(all parts) IEC 61439
(all parts) DIN EN 61439
(VDE 0660-600)
(all parts) VDE 0660-600
(all parts)