Indian Railways 25 kV OHE Diagrams PDF

# APPENDIX - X # 25 kV OHE DIAGRAMS OF GENERAL ARRANGEMENT AND FITTINGS (As issued by RDSO) ## CONTENTS 1. Setting of structures in the vicinity of semaphore signals. 2. Setting of structures in the vicinity of colour light signals without route indicator. 3. Setting of structures in the vicinity...

# APPENDIX - X # 25 kV OHE DIAGRAMS OF GENERAL ARRANGEMENT AND FITTINGS (As issued by RDSO) ## CONTENTS 1. Setting of structures in the vicinity of semaphore signals. 2. Setting of structures in the vicinity of colour light signals without route indicator. 3. Setting of structures in the vicinity of colour light signals with route indicator. 4. Setting of structures on curved track (Speed 200 km/h). 5. Setting of structures on curved track (Speed 105 km/h). 6. General clearance diagram for tangent and flat curves (regulated OHE). 7. Dropper schedule for regulated OHE (equal encumbrance). 8. Span and stagger chart. 9. General clearance diagram for tangent and flat curves (unregulated OHE). 10. Schematic arrangement of regulated and unregulated OHE. 11. Type of OHE. 12. Arrangement of OHE on platforms. 13. General arrangement of OHE on tangent track. 14. Cantilever arrangement (Normal). 15. Arrangement of OHE on portal. 16. Typical cross section of two-track section with Anchor Block. 17. Cantilever arrangement (High Speed). 18. Typical arrangement of structure & bracket assembly to suit raising of track (regulated). 19. Typical arrangement of structure assembly to suit raising of track (unregulated). 20. Typical structure section drawing of two-track section. (Normal). 21. General arrangement of head span for OHE on 4 tracks. 22. Typical foundation of OHE mast and portal. 23. Traction mast and portal (sections). 24. Uninsulated overlap. 25. Standard anticreep arrangement. 26. Neutral section. 27. Insulated overlap. 28. Standard anchor arrangement. 29. Ceramic Beaded Neutral section at support (PTFE Type). 30. Termination of regulated OHE (Pulley block type). 31. Termination of regulated OHE (winch type). 32. Fixed termination of two-OHEs (regulated and unregulated). 33. Fixed termination of OHE (regulated and unregulated). 34. Termination of two un-regulated OHE. 35. Termination of single wire (catenary and contract). 36. Standard section insulator assembly. 37. Termination of OHE at buffer end sidings. 38. Type of jumpers. 39. Characteristics of conductor for 25 kV ac OHE. 40. Standard / large bracket assembly. 41. Catenary dropper assembly. 42. 25 mm regulator arm assembly. 43. Tubular stay arm. 44. Steady arm assembly. 45. 25 mm raised register arm assembly. 46. Structure bonds. 47. Insulators. 48. Warning boards. ## FOR SEMAPHORE SIGNALS A diagram depicts the setting distances from semaphore signals. The diagram includes 7 structures numbered 1 through 7. Each structure has the following: - Structure number - Setting (Normal for all structures) - Distance in meters | Structure Number | Setting (Normal) | Distance (Meters) | |---|---|---| | 7 | Normal | 2.50 m | | 6 | Normal | 2.75 m | | 5 | Normal | 2.75 m | | 4 | Normal | 2.75 m | | 3 | Normal | 2.90 m | | 2 | Normal | 3.05 m | | 1 | Normal | 2.50 m | A text description of the visual diagram is as follows: The diagram shows the setting distance of 7 structures in the vicinity of a semaphore signal. The structures are numbered from 1 to 7, decreasing in number from left to right. The setting distance is 2.50 meters for structure number 7, 2.75 meters for structures 6 and 5, 2.75 meters for structure 4, 2.90 meters for structures 3, 3.05 meters for structure 2 and 2.50 meters for structure 1. The diagram also show a semaphore signal 10 meters from the last structure, and the direction of traffic is from left to right. ## FOR COLOUR LIGHT SIGNALS WITHOUT ROUTE INDICATOR FOR VISIBILITY AT 600 m A table depicts the setting distance of mast and distance from signal post for different setting values. The table has a column for setting distance of mast in meters, distance from signal post in meters, and a setting value in meters. All values start at 2.50 (Normal). | Setting Value (Meters) | Setting Distance of Mast (Meters) | Distance from Signal Post (Meters) | |---|---|---| | 2.50 (Normal) | 80 | 70 | | 2.75 | 45 | 115 | | 2.90 | 45 | 160 | | 3.05 | 20 | 240 | | 3.10 | 50 | 270 | | 3.25 | 70 | 400 | A text description of the visual diagram is as follows: The diagram shows the setting distance of mast and distance from signal post for different setting values. The setting values are 2.50 (Normal), 2.75, 2.90, 3.5, 3.10 and 3.25. The setting distance of mast are 80, 45, 45, 20, 50, 70 meters respectively, while the distance from signal post are 70, 115, 160, 240, 270, 400 meters respectively. ## FOR COLOUR LIGHT SIGNALS WITHOUT ROUTE INDICATOR FOR VISIBILITY AT 1000 m A table depicts the setting distance of mast and distance from signal post for different setting values. The table has a column for setting distance of mast in meters, distance from signal post in meters, and a setting value in meters. All values start at 2.75. | Setting Value (Meters) | Setting Distance of Mast (Meters) | Distance from Signal Post (Meters) | |---|---|---| | 2.75 | 60 | 125 | | 2.90 | 35 | 170 | | 3.05 | 45 | 215 | | 3.25 | 45 | 250 | | 3.50 | 65 | 310 | | 3.72 | 60 | 280 | A text description of the visual diagram is as follows: The diagram shows the setting distance of mast and distance from signal post for different setting values. The setting values are 2.75, 2.90, 3.05, 3.25, 3.50 and 3.72. The setting distance of mast are 60, 35, 45, 45, 65, 60 meters respectively, while the distance from signal post are 125, 170, 215, 250, 310, 280 meters respectively. ## FOR COLOUR LIGHT SIGNALS WITH HORIZONTAL ROUTE INDICATOR FOR VISIBILITY AT 600 m A table depicts the setting distance of mast and distance from signal post for different setting values. The table has a column for setting distance of mast in meters, distance from signal post in meters, and a setting value in meters. All values start at 2.50 (Normal). | Setting Value (Meters) | Setting Distance of Mast (Meters) | Distance from Signal Post (Meters) | |---|---|---| | 2.50 (Normal) | 65 | 130 | | 2.75 | 45 | 170 | | 2.90 | 40 | 225 | | 3.05 | 30 | 300 | | 3.25 | 60 | 350 | | 3.50 | 70 | 70 | A text description of the visual diagram is as follows: The diagram shows the setting distance of mast and distance from signal post for different setting values. The setting values are 2.50 (Normal), 2.75, 2.90, 3.05, 3.25 and 3.50. The setting distance of mast are 65, 45, 40, 30, 60, 70 meters respectively, while the distance from signal post are 130, 170, 225, 300, 350, 70 meters respectively. ## FOR COLOUR LIGHT SIGNALS WITH ROUTE INDICATOR WITHOUT HORIZONTAL ARM FOR VISIBILITY AT 600 m The diagram displays the setting distance of mast and distance from signal post for different setting values. The table has a column for setting distance of mast in meters, distance from signal post in meters, and a setting value in meters. All values start at 2.50 (Normal) | Setting Value (Meters) | Setting Distance of Mast (Meters) | Distance from Signal Post (Meters) | |---|---|---| | 2.50 (Normal) | 65 | 130 | | 2.75 | 45 | 170 | | 2.90 | 40 | 225 | | 3.05 | 30 | 300 | | 3.25 | 60 | 350 | | 3.50 | 70 | 70 | ## SUITABLE FOR MAX. SPEED OF 200 KM/H A table depicts the extra clearance in millimeters between a structure and adjacent track for various degrees of curvature and radii of curvature. | Degree of Curvature | Radius of Curvature (m) | Upto 840 mm Above Rail Level (mm) | From 840 mm to 4420 mm Above Rail Level (mm) | At 5410 mm Above Rail Level (mm) | Outside of Curve for Any Height (mm) | Extra Clearance Between Adjacent Tracks when There is No Structure Between Tracks (mm) | |---|---|---|---|---|---|---| | 1/20 | 3492 | 195 | 245 | 90 | 160 | | 3/40 | 2328 | 45 | 400 | 500 | 7 | 90 | | 1/10 | 1746 | 80 | 575 | 710 | 10 | 160 | | 1 1/20 | 1164 | 90 | 585 | 720 | 220 | | 2.0 | 873 | 100 | 590 | 730 | 10 | 230 | | 3.0 | 582 | 115 | 605 | 745 | 30 | 250 | | 4.0 | 436.5 | 130 | 620 | 760 | 45 | 285 | | 5.0 | 349.2 | 145 | 640 | 775 | 60 | 315 | | 6.0 | 291 | 160 | 655 | 790 | 80 | 350 | A text description of the visual diagram is as follows: The diagram depicts a table showing the extra clearance in millimeters between a structure and adjacent track for various degrees of curvature and radii of curvature. The table shows the extra clearance for different heights above rail level, from upto 840 mm to 4420 mm and 5410 mm. The table also shows the extra clearance for outside curve for any height and the extra clearance between adjacent tracks when there is no structure between tracks. ## SUITABLE FOR MAX. SPEED OF 106 KM/H A table depicts the extra clearance in millimeters between a structure and adjacent track for various degrees of curvature and radii of curvature. | Degree of Curvature | Radius of Curvature (m) | Upto 840 mm Above Rail Level (mm) | From 840 mm to 4420 mm Above Rail Level (mm) | At 5410 mm Above Rail Level (mm) | Outside of Curve for Any Height (mm) | Extra Clearance Between Adjacent Tracks when There is No Structure Between Tracks (mm) | |---|---|---|---|---|---|---| | 1/20 | 3492 | 130 | 170 | 80 | 6 | 7 | | 1.0 | 2328 | 3 | 4 | 5 | | 80 | | 1 1/20 | 1164 | 20 | 220 | 280 | 10 |120 | | 2.0 | 873 | 40 | 310 | 380 | 10 |170 | | 3.0 | 582 | 70 | 390 | 480 | 30 | 220 | | 4.0 | 436.5 | 90 | 420 | 520 | 40 | 260 | | 5.0 | 349.2 | 100 | 420 | 510 | 60 | 280 | | 6.0 | 291 | 110 | 390 | 470 | 80 | 300 | | 7.0 | 250 | 140 | 470 | 560 | 90 | 350 | | 8.0 | 219 | 160 | 540 | 640 | 110 | 400 | | 9.0 | 194 | 180 | 550 | 650 | 130 | 430 | | 10.0 | 175 | 180 | 500 | 590 | 140 | 450 | ## GENERAL CLEARANCE DIAGRAM FOR TANGENT AND FLAT CURVES (REGULATED OHE) The diagram shows the general clearance diagram for tangent and flat curves with regulated OHE. The diagram shows a cross section of the track with the OHE system. The OHE system consists of the catenary wire, contact wire, dropper, and supporting structures. The diagram shows the clearances between the OHE system and the track, as well as the clearances between the OHE system and moving train. ## FOR OTHER THAN OVERLAP SPANS The diagram also shows the general clearance diagram for tangent and flat curves with regulated OHE. The diagram shows a cross section of the track with the OHE system when the pantograph is raised. The OHE system consists of the catenary wire, contact wire, dropper, and supporting structures. The diagram shows the clearances between the OHE system and the track, as well as the clearances between the OHE system and moving train. ## FOR OVERLAP SPANS The diagram also shows the general clearance diagram for tangent and flat curves with regulated OHE. The diagram shows a cross section of the track with the OHE system when the pantograph is lowered. The OHE system consists of the catenary wire, contact wire, dropper, and supporting structures. The diagram shows the clearances between the OHE system and the track, as well as the clearances between the OHE system and moving train. ## DROPPER SCHEDULE FOR REGULATED OHE WITH EQUAL ENCUMBRANCE 1.40/1.40 The diagram shows a table of dropper lengths for regulated OHE with equal encumbrance 1.40/1.40. The table includes a column for span (in meters), dropper number, and dropper lengths (in millimeters). Values for D4, D3, D2, D1, and DO are all measured in millimeters. | Span (Meters) | Dropper Number | D4 | D3 | D2 | D1 | Do | |---|---|---|---|---|---|---| | 72.00 | 9 | 1272 | 985 | 702 | 532 | 475 | | 67.50 | 8 | 1280 | 940 | 713 | 600 | 566 | | 63.00 | 8 | 1280 | 1044 | 817 | 704 | 678 | | 58.50 | 7 | 1296 | 1013 | 843 | 786 | 475 | | 54.00 | 7 | 1305 | 1102 | 932 | 876 | 566 | | 49.50 | 6 | 1313 | 1086 | 972 | 975 | 678 | | 45.00 | 6 | 1321 | 1161 | 1048 | 925 | 475 | | 40.50 | 5 | 1329 | 1159 | 1102 | 1079 | 566 | | 36.00 | 5 | 1337 | 1220 | 1163 | 1128 | 678 | | 31.50 | 4 | 1345 | 1232 | 1180 | 1079 | 475 | | 27.00 | 4 | 1353 | 1279 | 1180 | 1128 | 566 | | 22.50 | 3 | 1361 | 1305 | 1362 | 1311 | 678 | | 18.00 | 3 | 1370 | 1342 | 1342 | 1311 | 475 | A text description of the visual diagram is as follows: The diagram shows a table of span and dropper length for regulated OHE with equal encumbrance. The span range from 72 meters to 18 meters. The dropper lengths range from 1272 mm to 1370 mm. ## SPAN AND STAGGER CHART The diagram displays a graphical representation of the span and stagger chart. The chart details: - Catenary stagger - Radius of curvature (meters) - Max span (meters) - WIND LOAD (kg/m²) - Contact wire stagger (mm) at support - Max permissive mid span stagger (mm) at 112.5 kgf/m² - Max permissive mid span stagger (mm) at 75 kgf/m² The chart shows that the maximum span is 5,750 meters, and the minimum span is 200 meters. The maximum stagger is 240 millimeters, and the minimum stagger is 25 millimeters. The diagram also shows the relationships between span length, radius of curvature, and stagger. A text description of the visual diagram is as follows: The diagram shows a chart of the relationship between the span length, radius of curvature, and stagger. The span length is shown on the horizontal axis, and the radius of curvature and stagger are shown on the vertical axis. The chart shows that the maximum span length is 5,750 meters, and the minimum span length is 200 meters. The maximum stagger is 240 mm at 75 kgf/m², and the minimum stagger is 25 mm at 75 kgf/m². ## GENERAL CLEARANCE DIAGRAM FOR TANGENT AND FLAT CURVES (UN-REGULATED OHE) The diagram shows the general clearance diagram for tangent and flat curves with unregulated OHE for an overlap span and a non-overlap span. The diagram shows a cross section of the track with the OHE system. The OHE system consists of the catenary wire, contact wire, dropper, and supporting structures. The diagram shows the clearances between the OHE system and the track, as well as the clearances between the OHE system and moving train. ## SCHEMATIC ARRANGEMENT OF REGULATED & UNREGULATED OHE The diagram shows a schematic arrangement of regulated and unregulated OHE. The diagram shows the components of the OHE system, including the catenary wire, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic. - **"F" JUMPER** - **IN SPAN JUMPER** - **SPAN** - **ANTICREEP WIRE** - **CATENARY WIRE (65)** - **REGULATING EQUIPMENT (IN SPAN JUMPER)** - **CONTRACT WIRE (107)** - **"G" JUMPER** - **GUY ROD** - **TERMINATION OF UNREGULATED OHE** - **"F" JUMPER** - **CATENARY (65)** - **IN SPAN JUMPER** - **SPAN** - **"G" JUMPER** - **GUY ROD** - **DIRECTION OF TRAFFIC** ## TENSION LENGTH APPROX. 1800 m (NORMAL) 2000 m (MAX.) The diagram shows a schematic arrangement of regulated and unregulated OHE. The diagram shows the components of the each system, including the catenary wire, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic. The tension length is approximately 1800 meters in normal conditions and 2000 meters maximum. ## TYPES OF OHE 1. **SIMPLE TRAM WAY TYPE CONTACT WIRE (UNREGULATED)** - SPEED 30 km/ph 2. **SIMPLE OHE (UNREGULATED)** - SPEED 80/100 km/ph 3. **SIMPLE OHE (REGULATED) WITH 100 mm. SAG** - SPEED 160 km/ph 4. **SIMPLE OHE (REGULATED)** - SPEED 112 km/ph 5. **STITCHED CATENARY** - SPEED > 160 km/ph 6. **COMPOUND CATENARY** - SPEED > 160 km/ph 7. **SIMPLE OHE (REGULATED) WITH 50 mm SAG** - SPEED 140 km/ph 8. **COMPOUND CATENARY** - SPEED 240 km/ph ## ARRANGEMENT OF OHE ON PLATFORM The diagram shows the arrangement of OHE on a platform. The diagram shows a side profile of the OHE. The diagram shows the contact plane, the clearance between the contact plane and the platform, the setting distance of the masts, and the direction of traffic. The diagram also shows the location the mast for high speed and the mast for rail level platform. - **R.L.** - **CONTACT PLANE** - **OF TRACK** - **Setting distance** - **Direction of traffic** ## GENERAL ARRANGEMENT OF OHE ON TANGENT TRACK The diagram shows the general arrangement of OHE on a straight track. The diagram shows the contact plane, the clearance between the contact plane and the track, the setting distance, and the direction of traffic. The diagram also shows the location of the mast for high speed and the mast for rail level track. - **PANTO AXIS** - **CATENARY (65)** - **CONTACT PLANE** - **OF TRACK** - **STAGGER** - **R.L.** - **UP** - **DN** ## CANTILEVER ASSEMBLY (NORMAL) The diagram shows a side profile of a cantilever assembly (Normal) for OHE. The diagram shows the mast, the stay arm, the hook insulator, and the catenary system. The diagram also shows the direction of traffic and the location of the push off and pull off points. - **MAST ATTACHMENT FOR HOOK INSULATOR FITTING** - **STAY TUBE** - **STAY ARM INSULATOR** - **BRACKET TUBE** - **TRACTION MAST** - **REGISTER ARM HOOK** - **STEADY ARM CLAMP** - **ANTIWIND CLAMP** - **BFB STEADY ARM BRACKET INSULATOR** - **CONTACT WIRE (107)** - **CONTACT PLANE Z** - **STAGGER** - **MAST BRACKET FITTING** - **SETTING DISTANCE** - **END PIECE** - **CENTRAL PIECE** - **END PIECE** - **"J" BOLT** - **ROD LACING** ## ARRANGEMENT OF OHE ON PORTAL AT 4 TRACK SECTION The diagram shows the arrangement of OHE on a portal at 4 track section. The diagram shows a cross section of the portal, the contact plane, the setting distance of the mast, the direction of traffic, and the location of the mast for high speed. ## TYPICAL CROSS SECTION OF TWO TRACK SECTION WITH ANCHOR BLOCK The diagram shows the typical cross section of two track section with anchor block. The diagram is a side-view of 4 track section of a railway track, with the anchor block. The diagram shows the location of the anchor block, the mast, the setting distance, the contact plane, the direction of traffic and the rail levels. - **BWA** - **DELHI** - **OF TRACK** - **SETTING DISTANCE** - **STEP DISTANCE** - **SLOPE 1:3** - **CANTILEVER ASSEMBLY** - **STAY TUBE** - **STAY ARM INSUATOR** ## CANTILEVER ASSEMBLY (HIGH SPEED) The diagram shows a side profile of a cantilever assembly (High Speed) for OHE. The diagram shows the mast, the stay arm, the hook insulator, and the catenary system. The diagram also shows the direction of traffic and the location of the push off and pull off points. - **MAST ATTACHMENT FOR HOOK INSULATOR FITTING** - **STAY TUBE** - **STAY ARM INSUATOR** - **BRACKET TUBE** - **TRACTION MAST** - **PULL OFF REGISTER ARM DISTANCE** - **DROP BRACKET INSULATOR** - **ANTI WIRE CLAMP** - **BFB STEADY ARM** - **(S) STAGGER S** - **SETTING DISTANCE** - **MAST BRACKET FITTING** ## TYPICAL ARRANGEMENT OF STRUCTURE & BRACKET ASSEMBLY TO SUIT RAISING OF TRACK The diagram shows the typical arrangement of structure & bracket assembly to suit raising of track. The diagram shows the OHE system components including catenary wire, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic, mast height, and rail levels. - **STYLE-01** - **CONTACT PLANE** - **ERECTION SCHEDULE OF BRACKET ASSEMBLY FOR REGULATED O.H.E.** - **TYPICAL STRUCTURE ERECTION DRAWING FOR TWO TRACK SECTION** - **CONT PLANE** - **OF TRACK** - **RAIL LEVEL** - **FOR HIGH SPEED** ## GENERAL ARRANGEMENT OF HEADSPAN FOR OHE ON 4 TRACKS The diagram shows the general arrangement of headspan for OHE on 4 tracks. The diagram shows a side view of the headspan, including the catenary, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic, contact plane, setting distance, rail levels, mast height, and the location of the mast. - **CROSS SPAN WIRE** - **HEAD SPAN DROPPER** - **9 TONNE INSULATOR** - **TURN BUCKLE** - **HEAD SPAN WIRE** - **CONTACT PLANE** - **CROSS SPAN DROPPER** - **OF TRACK** - **SETTING DISTANCE** - **RAIL LEVEL** - **C OF TRACK** - **STEADY WIRE (MIN)** - **C OF TRACK** - **SETTING DISTANCE** - **R.L** ## TYPICAL ARRANGEMENT OF STRUCTURE & BRACKET ASSEMBLY TO SUIT RAISING OF TRACK The diagram shows the typical arrangement of structure & bracket assembly to suit raising of track. The diagram shows the OHE system components including catenary wire, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic, mast height, and rail levels. - **STYLE-02** - **ERECTION SCHEDULE OF BRACKET ASSEMBLY FOR UNREGULATED O.H.E.** ## TYPICAL FOUNDATION FOR OHE MAST AND PORTAL The diagram shows the typical foundation for OHE mast and portal. The diagram shows a cross section of the foundation for the OHE mast and portal structures. The diagram shows the location of the foundation, the direction of traffic, the rail levels, the type of soil, and the type of portal. The diagram also shows the location of the anchor block, the anchor foundation, and the dwarf mast. - **SIDE BEARING FOUNDATION (NORMAL SOIL)** - **SIDE BEARING FOUNDATION (HARD SOIL)** - **C OF TRACK** - **SIDE GRAVITY FOUNDATION** - **C OF TRACK** - **FOUNDATION ON BLACK COTTON SOIL** - **ANCHOR** - **TIE PULL** - **R.LY - **A CROSS TRACK PURE GRAVITY FOUNDATION (FOR PORTAL)** - **DWARF MAST** - **PURE GRAVITY FOUNDATION** ## TRACTION MAST AND PORTAL (SECTIONS) - **BFB MAST 6" X 6" 25 lbs** - **RSJ. MAST 8" X 6" 25 lbs** - **FABRICATED MAST K-100, K125, K-150, K-175, K-1200, K-225, K-250** - **SPECIAL BFB PORTAL** - **G' TYPE PORTAL** - **P' TYPE PORTAL** ## UN-INSULATED OVERLAP The diagram shows the un-insulated overlap for tangent and curved track for different radius of curvature. The diagram shows the OHE system components including catenary wire, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic, mast height, and contact plane. ## STANDARD ANTICREEP ARRANGEMENT The diagram shows the standard anti-creep arrangement for the OHE system. It includes the catenary wire, contact wire, anti-creep wire, bracket tube, suspension bracket, and jumper. The diagram also depicts the junction of the different components and their positioning in relation to each other. - **JUMPER (G)** - **CATENARY (GS)** - **SPAN** - **ANTICREEP WIRE (GS)** - **JUMPER (F)** - **REGULATING EQUIPMENT CONTACT WIRE (107)** - **BRACKET TUBE** - **SUSPENSION BRACKET** - **ANTICREEP WIRE (GS)** - **CONTACT WIRE (107)** - **PANTO AXIS** ## NEUTRAL SECTION The diagram shows the neutral section for different settings of the catenary. The diagram shows the OHE system components including catenary wire, contact wire, jumper, and supporting structures. The diagram also shows the direction of traffic. ## INSULATED OVERLAP The diagram shows the insulated overlap for tangent and curved track. The diagram shows the OHE system components including catenary wire, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic, potential equalising jumper, and the location of mast. ## STANDARD ANCHOR ARRANGEMENT The diagram shows the standard anchor arrangement for the OHE system. The diagram shows the location of the anchor, the guy rod, the anchor termination, the setting distance, and the rail level. The diagram also shows the location of the dwarf mast. ## CERAMIC BEADED NEUTRAL SECTION AT CANTILEVER SUPPORT The diagram shows the ceramic beaded neutral section at cantilever support. The diagram shows the location of the neutral section, the insulator, the arcing horn, the dropper, the anti-torsion dropper, and the catenary clamp. ## TERMINATION OF REGULATED OHE (PULLEY BLOCK TYPE) The diagram shows the termination of regulated OHE (Pulley block type). The diagram shows the OHE system components including the catenary wire, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic, the location of the mast, and the anchor strap. - **ANCHOR COUBLE STRAP** - **COMPENSATING PLATE** - **CATENARY (GS)** - **DISTANCE ROD** - **9 TONNE ADJUSTER** - **DOUBLE STRAP** - **5 TONNE ADJUSTER** - **ENDING CLAMP** - **CONTACT WIRE (107)** - **MAST ANCHOR FITTING** - **GUY ROD** - **DOUBLE STRAF** - **COUNTER WEIGHT** - **R.L** - **TOP OF MUFF 200** ## ARRANGEMENT WITH FABRICATED MAST DETAIL OF "X" The diagram shows the arrangement of a fabricated mast. The diagram shows the OHE system components including the catenary wire, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic, the location of the mast, and the anchor strap. ## TERMINATION OF REGULATED OHE (WINCH TYPE) The diagram shows the termination of a regulated OHE (winch type). The diagram shows the OHE system components including the catenary wire, contact wire, dropper, bracket, and supporting structures. The diagram also shows the direction of traffic, the location of the mast, and the anchor strap. - **MASTI ANCHOR FITTING** - **LIMITING DEVICE** - **DISTANCE ROD** - **9 TONNE ADJUSTER** - **DOUBLE STRAP** - **9 TONNE INSULATOR** - **DOUBLE STRAP** - **COMPENFATING PLATE** - **5 TONNE ADJUSTER** - **ENDING CLAMP** - **CATENARY (65)** - **CONTACT WIRE (107)** - **MAST ANCHOR FITTING** - **GUIDE TUBE** - **GUY ROD** - **DOUBLE STRAF** - **COUNTER WEIGHT** - **R.L** - **TOP OF MUFF 20C** ## ARRANGEMENT WITH FABRICATED MAST DETAIL OF X The diagram shows the arrangement of a fabricated mast. The diagram shows the OHE system components including the catenary wire, contact