Railway Signalling Flexible Screened Multi core cable, Cable Routes,Design Consideration,Internal Wiring

Production/ Batch tests, Spark test, Conductor resistance test,Life expectancy,Cables Availability,  Flexible Screened Multi core cable, Cable Routes,Design Consideration,Internal Wiring, Circuit requirement,Fire Performance Requirements Production/ Batch tests  The following test will be performed on every manufactured batch of cable. Spark test: • The test procedure shall be as defined in LU specification E4156. The test shall be performed on […]

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Railway Signalling Cables

Railway Signalling Track Connection Cable,Track Crossing Cable,UTX,OTX,Track Crossing Plastic PIPE,Cables in Tunnel

 Track Connection Cable • A single core flexible cable used to connect to items of track-mounted equipment. • The cable will be installed in the most difficult locations and will need to be highly rugedised to withstand both the high levels of vibration associated with track mounted equipment’s as well as being crushed into the […]

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Railway Signalling Cables

Railway Signalling Outdoor Indoor Cables

External Data Transmission Cables • For axle counter data between the ACE and the EAKs the transmission is over a voice frequency carrier, and hence twisted pair cable is required. Because the transmission distances are restricted to maximum 2 km, it is not necessary to individually shield each pair, and one overall shield is adequate. […]

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railway signalling cables

Railway Signalling Drain/Screen Wire,Types of Cables,Power Cables, SER,Earth Cables 

Definition: Single or group of wires bunched together with sheath protection is  called Cable. DRAIN/SCREEN WIRE: An un insulated solid or stranded tinned copper wire which is placed directly under a shield. It touches the shield throughout the cable, and, therefore, may be used in terminating the shield to ground. A big labor saver in […]

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NWKR/RWKR, NWR/RWR, POINT OPERATION CIRCUIT, WCR, POINT OPERATION, WNKR/WRKR, NWKR/RWKR CIRCUIT 

NWKR/RWKR CIRCUIT * With WLR, RCR/NCR picked up, NWKR/RWKR drops. * There by all indication relays& its repeater relays (NWKPRs, RWKPRs, NWKSRs, RWKSRs) drop.   NWR/RWR CIRCUIT With WLR up, all indication relays drop, NCR/RCR up, NWR/RWR will pick up at location   POINT OPERATION CIRCUIT AT LOCATION * With NWR/RWR picks up, WJR picks […]

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Overlap Stick Relay Circuits - OVSR & OVJSLR

Railway Signalling SMR/SMCR/TSR/UCR/ASR /ALSR/UYRs/ OVSR /OVJSLR Circuits

SMR/SMCR CIRCUIT This relay is energized when the SM’s panel key is `IN’ and turned to Normal. The Energisation of SMCR/SMR relay provides authorized operation of all the functions on the panel. When SM’s key is turned to reverse and taken out from panel by SM, prevents un-authorized operation and locks the panel in the […]

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RRI LAY OUT WITH ALL BUTTONS FOR SIGNALS,POINTS&ROUTES

RRI LAY OUT WITH ALL BUTTONS FOR SIGNALS,POINTS & ROUTES

RRI LAY OUT WITH ALL BUTTONS FOR SIGNALS,POINTS & ROUTES   SIGNAL BUTTON CIRCUIT Any button pressed, the concerned signal button relay will pick up providing all other buttons relays are dropped and no button remain pressed.   ROUTE BUTTON CIRCUIT Required route button is pressed to energize the route button relay POINT BUTTON CIRCUIT […]

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