hager KEH31D00S3LMA, Системное руководство

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Construction and characteristics
Technical changes reserved 13
3.4 Busbar elements: Features
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4-pole (N, L1, L2, L3) and 5-pole (N, L1, L2, L3, PE2) available, each with PE
housing
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Neutral conductor has same cross-section as the phases (L1, L2, L3
conductors)
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System elements available as single conductor or double conductor (double
body system) according to rated current
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Protection type for standard housing: IP55
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Phases labelled at both ends of the busbar element
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Insulation materials are temperature resistant up to 155 °C
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Dielectric proof voltage of 3500 V
3.4.1 Connection joint with joint block
The connection joint between adjacent busbar elements is implemented with a
joint block. The joint block consists of
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the supplied joint block (with shear-off bolt),
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the supplied flanges for covering, for connecting the PE housings and for
additional mechanical stabilisation.
Connection joint with joint block for
protection type IP55
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Joint block for electrical and mechanical
connection of the inner conductors of
adjacent busbar elements
- Side flanges and screws
- Torque on clamp can be checked at a
later time; disconnection of busbar run is
not necessary for this
- Joint block can be changed at any time
(for a tap-off unit or other conversions /
expansions)
The connection joint with a joint block between unibar H busbar elements
ensures the following in a work process:
-
the electrical and mechanical connection of all inner conductors in the
busbar, including the PE conductor
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with double body systems (doubled conductor systems), additionally the
parallel switching and phase balancing of the busbars
The interior of the joint block consists of silver-plated copper plates which have
been alternately layered with insulating material plates. The insulating material is
temperature-resistant up to 200 °C.