Technical data

CHAP-04.10 ELECTRICAL POWER DISTRIBUTION, DRIVES, CONTROL &
ILLUMINATION ELECTRICAL
Page 8 of 50
 Addressable type PCS, Addressable type BSS, ZSS and Belt
rupture protection switches will be provided for all new and
existing conveyors being upgraded.
 Proximity type Limit switches will be used for shuttle conveyors,
tripper car etc.
 Sensing distance of proximity in the Zero Speed Switch will be 60
mm.
 RF admittance type chute clogging switches flush with chute body
will be provided.
 Infrared type Belt rupture protection switches will be provided in
all conveyors. The minimum set of belt rapture switches will be
provided as given below :
 1 set for conveyors of length up to 50m.
 2 sets for conveyors of length above 50m and below 100m.
 3 sets for conveyors of length above 100m.
 Chute Jamming switches in all chute including chute in Tripper
Car.
15. All HT/LT Power, control, signal, communication cables (fiber optic /
electrical), special cables, rubber insulated flexible cables, illumination
cables etc. as required.
 All HT and LT Power cables will be XLPE insulated.
 All HT Power cables will be 11kV UE grade and FRLS sheathed.
 LT Control cables will be PVC insulated.
 Minimum size of Control cables will be 2.5 sq. mm.
 Copper cable will be used for imported motors, crane and moving
equipment.
16. 415V, 100A interlocked switch socket outlets for repair network,
welding sockets at different floor, premises, buildings and other areas.
Maximum 3 nos. Welding sockets will be connected to one feeder with
100Amp MCCB rating & minimum size of cable will be 3.5 x 70sqmm.
17. 240V, 15A and 24V, 5A receptacles from Lighting Distribution Board /
Sub Lighting Distribution Board.
18. Load break isolators for maintenance crane, hoists, tripper car etc. to
be located near the equipment.
19. Power and control junction boxes will be made up of SS sheet with
weatherproof enclosure for termination of field cables.
20. Power trolley line conductor (DSL) / Festoon Cable trolley system /
Plastic Cable Carriage system including rails / angles, supporting
brackets, insulator assembly, junction box etc. will be provided as
follows :
 Festoon Cable trolley system for hoists etc.
 Plastic Cable Carriage system for power and control trailing