Composants Mobilis Elite
Circuit interruption element
Ensures the electrical insulation between 2 sections in the same feeding line.
Description
The purpose of the circuit interruption element is to insulate electrically one part of the line from another. Example: on a line with
several travelling cranes, the circuit interruption element allows maintenance to be carried out on a crane (in a well defined area)
while the other cranes continue to run. Selecting the type of circuit interruption element depends on how the line is used. - “safety”
interruption: Prevents the insulation from being short-circuited via the trolley. This configuration requires the trolley to be driven
manually or mechanically from one sector to the other over the insulation. The circuit interruption element must be adapted to the
trolley type (e.g. double interruption for double collector trolley). - “comfort” interruption: In this case, it is possible to short-circuit
the insulation via the trolley. This configuration means the trolley can pass automatically from one sector to the other with current
continuity if a double or triple collector trolley is used. A single interruption is always appropriate for this configuration (it must be
shorter than the trolley). Caution: The customer is responsible for taking the appropriate safety measures to prevent the trolley
from short-circuiting the circuit interruption and supplying electricity to the maintenance area. Nota bene: The length “L” of the
element should be stated when ordering. In the standard version, the interruption is located at the centre of the element, if you
wish it to be placed elsewhere, please provide a drawing defining the position required. In this case, the element is given a special
reference. For double or triple interruptions (no current continuity) the insulation area of 140 mm is extended. (412 mm for double
interruptions and 684 mm for triple interruptions). The circuit interruption element must in no case be used as an electrical switch.
The electrical arcs generated by driving the collector trolley across the interruption damage the conductors and insulators. Check
possible reduction in the current capacity of the trolleys due to the insulators. Each section of the circuit must be provided with its
own feed box. The earth conductor is continuous. The circuit interruption element is assembled like a standard element. When the
maintenance area is cut off from the mains, make sure that no collector trolleys are travelling as they are likely to short-circuit the
circuit interruption. The insulation between the conductors on the same pole on either side of the circuit interruption element must
be
checked
regularly,
at
least
once
a
year.
Categorie
Standard
Avantage n°1
Can be fitted as easily as a straight element
Avantage n°2
Visual location of the interruption position from the outside
Références et compatibilités
Références et variantes
Available
in
standard
range
and
with
dust-protecting
lips,
add
'-
LV'
after
the
reference.
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Edité le 04/01/2017
Page 94/223