Aclaración/resumen:For on-off of dead sections of traction network of ìåòðîïî of ëèòåíà
Descripción completa de la marca:In environmental category at, the ðàçìå categories
ùåíèÿ 3 are being manufactured and are established at nonpluses of subway lines.
structure of notation convention
FET _ switching item of deadlock
4 _ quantity controlled isolating switches
25 _ rated control current of box, the hectare
Ayr _ the Directorate of isolating switches ( ýëåêòðîäâèãàòåëüíîå, manual)
in _ the inner installation
at _ the environmental category
3 _ allocation category
constructively is made in the form of box and has floor êðåïëå
Nia. The switching item has three the doors, one of which opens and
çíóòðè box, two other _ on the outside. On box roof there is holders
for fixation of high-voltage cable. For cable bushing on top in Crewe
box sh are accomplished windows, closed split òåêñòîëèòîâûìè plates
and holed by the diameter 52 MM. In side wall for tyre omission has
the window òñÿ, closed by òåêñòîëèòîâûìè pages with metal suppressors.
the fixation of low-voltage cable is carried out with the help of connection point and year
àéêè holed by the diameter 25 MM. On roof is secured by total bolt for
metal construction çåìëåíèÿ of box. The box frame is made of corners and
channel. On frame the isolating switches and drive is set.
on the box doors there is inspection windows, closed by the organic glass.
the contact leads are connected with one another copper buses.
on contact lead of isolating switch on the part of split êîíò
certificate are established copper bus for cable connection. To roof are welded
two angle bar of grounding. For neutral earthing of cable shield àëþìè
the íèåâàÿ tyre, established in insulators is applied.
signalling of distinct positions of isolating switches and the Directorate whether
íåéíûì electric motor is carried out with the help of microswitches,
functionally related to rotating shafts of isolating switch .
for illuminating are used lamp. Engage switch of illuminating the whisker
òàíîâëåí on the side wall of box.
the low-voltage equipment is arranged on demontable panels. On back
box wall is established the panel with signalling bulbs and button.
in delivery set are included:
- switching item _ 1 state
- grip of manual operating on
isolating switches of 1Ð _ 1 state. |
