hager KEH31D00S3LMA, Системное руководство

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Construction and characteristics
14 Technical changes reserved
Single bolt clamp(s)
The joint block is fitted with single bolt clamp(s) to clamp and connect the
conductors of adjacent busbar elements. The joint block is provided with 1, 2, or
4 bolt clamps, depending on the rated current and number of internal conductors
in the busbars.
Illustration of principle of joint block with single bolt clamp: efficient assembly,
subsequent replacement possible (for protection type IP 55/65)
Efficient assembly with indication of torque
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The conductor rails of the adjacent busbar elements are fed from both sides
into the clamping block until the conductors are uniformly aligned.
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The single bolt clamp(s) on the joint block is then tightened with a torque
wrench until the double-headed bolt (on the outer part of the shear bolt)
shears off. This occurs at a torque of approx. 60 Nm.
Subsequent checking of the clamp while current is on the busbar run is possible
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The joint block in the connection joints of the busbar elements enables
efficient assembly. On connection joints with
protection type IP55 / IP65, the cap-sealed flange opening allows subsequent
checking or tightening of the torque.
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The torque on the joint block can be checked without having to disconnect
the busbar run.
With IP55 / IP65, the connecting block can be changed at a later date
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With a protection type IP55 / IP65 connection joint, the joint block can be
changed at a later date.
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Using accessories, it is possible in protection types IP55 and IP65 to use a
tap-off unit for connection joints (250 - 1250 A) at each connection joint
between straight busbar elements.
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Using accessories, it is possible in protection types IP55 and IP65 to
implement a cable intermediate feeder or other conversions/enlargements at
each connection joint between straight busbar elements.