Podcast
Questions and Answers
What type of transformer is specified by ETI/PSI/78?
What type of transformer is specified by ETI/PSI/78?
- Three-phase oil filled transformer
- Small scale rectifier transformer
- Single-phase dry type transformer
- Single-phase booster transformer (correct)
Which voltage rating is associated with the dry type cast resin transformer mentioned in ETI/PSI/80?
Which voltage rating is associated with the dry type cast resin transformer mentioned in ETI/PSI/80?
- 50 kV
- 10 kV
- 240 V
- 25 kV (correct)
Which item is classified as obsolete?
Which item is classified as obsolete?
- ETI/PSI/14(1/86)
- ETI/PSI/13(3/85)
- ETI/PSI/19(7/85)
- ETI/PSI/11(12/81) (correct)
What is the voltage rating of the booster transformer mentioned?
What is the voltage rating of the booster transformer mentioned?
For what application is the 3.3 MVA transformer in ETI/PSI/83 designed?
For what application is the 3.3 MVA transformer in ETI/PSI/83 designed?
What type of lightning arrestor is referenced in ETI/PSI/82?
What type of lightning arrestor is referenced in ETI/PSI/82?
Which of the following has been superseded by ETI/PSI 134(8/89)?
Which of the following has been superseded by ETI/PSI 134(8/89)?
What is the application of ETI/PSI/15(10/73)?
What is the application of ETI/PSI/15(10/73)?
Which of the following transformers is listed as oil-filled?
Which of the following transformers is listed as oil-filled?
Which item includes a specification for double pole and triple pole isolators?
Which item includes a specification for double pole and triple pole isolators?
What type of transformer is ETI/PSI/15A(7/82)?
What type of transformer is ETI/PSI/15A(7/82)?
What is the Ah rating of the lead acid batteries specified in ETI/PSI/21(6/81)?
What is the Ah rating of the lead acid batteries specified in ETI/PSI/21(6/81)?
What type of conductor is specified for overhead/railway traction in the document?
What type of conductor is specified for overhead/railway traction in the document?
What is the ratio mentioned for three pulley type regulating equipment?
What is the ratio mentioned for three pulley type regulating equipment?
Which of the following is associated with a nominal voltage of 220 kV?
Which of the following is associated with a nominal voltage of 220 kV?
What type of insulators is used for the 25 kV single phase 50 Hz overhead traction line?
What type of insulators is used for the 25 kV single phase 50 Hz overhead traction line?
What is the main function of the interlock mentioned in ETI/OHE/52?
What is the main function of the interlock mentioned in ETI/OHE/52?
Which of the following refers to the discharge/earthing pole assembly for 25 kV ac traction?
Which of the following refers to the discharge/earthing pole assembly for 25 kV ac traction?
What equipment type is referred to in ETI/OHE/64?
What equipment type is referred to in ETI/OHE/64?
Which item relates to the specifications for an 8 wheeler OHE Inspection Car?
Which item relates to the specifications for an 8 wheeler OHE Inspection Car?
What is the purpose of the contact wire mentioned in ETI/OHE/56?
What is the purpose of the contact wire mentioned in ETI/OHE/56?
What component is described as a ‘Phase break’ in the document?
What component is described as a ‘Phase break’ in the document?
Which specification number corresponds to the annealed standard copper conductor for jumper wire?
Which specification number corresponds to the annealed standard copper conductor for jumper wire?
What type of coating is mentioned for steel masts and tubes used on 25 kV AC OHE?
What type of coating is mentioned for steel masts and tubes used on 25 kV AC OHE?
Which specification deals with solid core porcelain insulators for 25 kV 50 Hz overhead lines?
Which specification deals with solid core porcelain insulators for 25 kV 50 Hz overhead lines?
Which of the following options is labeled as withdrawn?
Which of the following options is labeled as withdrawn?
What is specified by ETI/OHE/44(7/78)?
What is specified by ETI/OHE/44(7/78)?
Which specification relates to splices and ending clamps?
Which specification relates to splices and ending clamps?
What type of material do ETI/OHE/18(4/84) specifications refer to?
What type of material do ETI/OHE/18(4/84) specifications refer to?
Which specification is related to hard drawn grooved copper contact wire for AC electric traction?
Which specification is related to hard drawn grooved copper contact wire for AC electric traction?
What is specified by RE/OHE/23(9/61)?
What is specified by RE/OHE/23(9/61)?
What is the voltage rating of the lead acid batteries specified for remote control equipment?
What is the voltage rating of the lead acid batteries specified for remote control equipment?
Which ETI/PSI number corresponds to the standard for electrical distribution systems in stations?
Which ETI/PSI number corresponds to the standard for electrical distribution systems in stations?
Which type of equipment is covered under ETI/PSI/36?
Which type of equipment is covered under ETI/PSI/36?
What voltage rating do the lightning arrestors from ETI/PSI/42 and ETI/PSI/39 hold?
What voltage rating do the lightning arrestors from ETI/PSI/42 and ETI/PSI/39 hold?
Which ETI/PSI standard pertains to telemetering equipment for 25 kV AC traction?
Which ETI/PSI standard pertains to telemetering equipment for 25 kV AC traction?
What type of isolators is mentioned in ETI/PSI/50B?
What type of isolators is mentioned in ETI/PSI/50B?
Which reference specifies potential transformers with a voltage rating of 66 kV?
Which reference specifies potential transformers with a voltage rating of 66 kV?
What does ETI/PSI/31 specify standards for?
What does ETI/PSI/31 specify standards for?
Which equipment is outlined to be supervised by ETI/PSI/37?
Which equipment is outlined to be supervised by ETI/PSI/37?
Which document supersedes ETI/PSI/42 regarding lightning arrestors?
Which document supersedes ETI/PSI/42 regarding lightning arrestors?
What is the voltage rating of the Double pole & triple pole motor-operated isolators referenced in ETI/PSI/20B?
What is the voltage rating of the Double pole & triple pole motor-operated isolators referenced in ETI/PSI/20B?
Which specification number refers to the Lightning Arrester, Valve type 42 kV?
Which specification number refers to the Lightning Arrester, Valve type 42 kV?
Which of the following specifications has been classified as obsolete?
Which of the following specifications has been classified as obsolete?
What is the Ah rating of the lead-acid batteries specified in ETI/PSI/25(6/81)?
What is the Ah rating of the lead-acid batteries specified in ETI/PSI/25(6/81)?
Which of the following reference numbers corresponds to the Control & relay board for railway traction sub-station?
Which of the following reference numbers corresponds to the Control & relay board for railway traction sub-station?
Which document has been superseded regarding the Lightning Arrestor, 120KV?
Which document has been superseded regarding the Lightning Arrestor, 120KV?
What is the KVA rating of the transformers specified by ETI/PSI/15A(7/82)?
What is the KVA rating of the transformers specified by ETI/PSI/15A(7/82)?
What is the primary function of the insulating transformer oil purification plant referenced in ETI/PSI/62?
What is the primary function of the insulating transformer oil purification plant referenced in ETI/PSI/62?
Which piece of equipment is designed for use in railway traction sub-stations as stated in ETI/PSI/66?
Which piece of equipment is designed for use in railway traction sub-stations as stated in ETI/PSI/66?
In ETI/PSI/75, what type of capacitor is mentioned for enhancing the railway system's performance?
In ETI/PSI/75, what type of capacitor is mentioned for enhancing the railway system's performance?
What is the capacity of the shunt capacitor equipment specified in ETI/PSI/67?
What is the capacity of the shunt capacitor equipment specified in ETI/PSI/67?
Which specification number refers to the control and relay panel board for ac traction sub-stations?
Which specification number refers to the control and relay panel board for ac traction sub-stations?
Which specification number corresponds to the hot dip zinc coating on steel masts used in overhead equipment?
Which specification number corresponds to the hot dip zinc coating on steel masts used in overhead equipment?
Which item refers to the specification for aluminum alloy sections used in overhead equipment?
Which item refers to the specification for aluminum alloy sections used in overhead equipment?
What material is specified for use in solid core porcelain insulators for 25 kV 50 Hz overhead lines?
What material is specified for use in solid core porcelain insulators for 25 kV 50 Hz overhead lines?
Which specification mentions stainless steel wire rope for use in overhead equipment?
Which specification mentions stainless steel wire rope for use in overhead equipment?
Which specification relates to the hard drawn copper catenary used for work under construction?
Which specification relates to the hard drawn copper catenary used for work under construction?
Which specification includes references to galvanized steel wire?
Which specification includes references to galvanized steel wire?
Which item is classified as withdrawn according to the specified details?
Which item is classified as withdrawn according to the specified details?
Which specification covers the application of splices and ending clamps?
Which specification covers the application of splices and ending clamps?
In the specifications, which type of wire is specifically identified for use in the 25 kV AC electric traction?
In the specifications, which type of wire is specifically identified for use in the 25 kV AC electric traction?
Which specification number is associated with Aluminum OHE wire?
Which specification number is associated with Aluminum OHE wire?
What is the function of ETI/PSI/3(8/75)?
What is the function of ETI/PSI/3(8/75)?
Which specification is not applicable for OHE mast painting?
Which specification is not applicable for OHE mast painting?
Which specification is noted as obsolete?
Which specification is noted as obsolete?
What type of materials are referenced in ETI/OHE/55(4/90)?
What type of materials are referenced in ETI/OHE/55(4/90)?
ETI/C/4(5/88) is related to what kind of specification?
ETI/C/4(5/88) is related to what kind of specification?
Which specification describes the rating of potential transformers?
Which specification describes the rating of potential transformers?
What type of wire is detailed under ETI/OHE/101 (8/83)?
What type of wire is detailed under ETI/OHE/101 (8/83)?
What does the specification ETI/PSI/4(9/79) deal with?
What does the specification ETI/PSI/4(9/79) deal with?
What is indicated by the remarks section for ETI/C/3(5/83)?
What is indicated by the remarks section for ETI/C/3(5/83)?
What is the voltage rating specified for the double pole and triple pole isolators in ETI/PSI/50?
What is the voltage rating specified for the double pole and triple pole isolators in ETI/PSI/50?
Which document outlines the standards relevant to selective frequency level meter analyzers?
Which document outlines the standards relevant to selective frequency level meter analyzers?
Which specification pertains to earthing blade assemblies for isolators?
Which specification pertains to earthing blade assemblies for isolators?
What is the voltage rating for the lightening arrestors mentioned in ETI/PSI/43?
What is the voltage rating for the lightening arrestors mentioned in ETI/PSI/43?
Which specification number refers to potential transformers rated at 132 kV?
Which specification number refers to potential transformers rated at 132 kV?
Which item describes telemetering equipment specifically for 25 kV AC traction?
Which item describes telemetering equipment specifically for 25 kV AC traction?
Which ETI/PSI document has been superseded by ETI/PSI 137?
Which ETI/PSI document has been superseded by ETI/PSI 137?
What type of equipment is defined in ETI/PSI/44?
What type of equipment is defined in ETI/PSI/44?
Which specification covers the standards for single pole vacuum circuit breakers?
Which specification covers the standards for single pole vacuum circuit breakers?
Which document outlines standards for drawings related to power supply installations?
Which document outlines standards for drawings related to power supply installations?
Flashcards
ETI/PSI 134(8/89)
ETI/PSI 134(8/89)
This document supersedes earlier documents related to electrical equipment.
Obsolete Document
Obsolete Document
A document that is no longer used or valid.
Single pole circuit breakers, 25KV (ETI/PSI/11)
Single pole circuit breakers, 25KV (ETI/PSI/11)
A circuit breaker designed to interrupt one phase of a 25 kV electrical circuit.
Booster transformer, 25 kV (ETI/PSI/13)
Booster transformer, 25 kV (ETI/PSI/13)
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25 kV Dropout fuse switch and operating pole (ETI/PSI/14)
25 kV Dropout fuse switch and operating pole (ETI/PSI/14)
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25 KV/240 V LT supply transformer 10 KVA (ETI/PSI/15)
25 KV/240 V LT supply transformer 10 KVA (ETI/PSI/15)
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25KV/240V LT supply transformers, 100 KVA (ETI/PSI/15A)
25KV/240V LT supply transformers, 100 KVA (ETI/PSI/15A)
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Admittance relay for 25KV (ETI/PSI/17)
Admittance relay for 25KV (ETI/PSI/17)
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Lightning Arrestor, 120KV (ETI/PSI/18)
Lightning Arrestor, 120KV (ETI/PSI/18)
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Lightning Arrester, Valve type 42 kV (ETI/PSI/19)
Lightning Arrester, Valve type 42 kV (ETI/PSI/19)
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Double pole & Triple pole isolators, 132 kV (ETI/PSI/20)
Double pole & Triple pole isolators, 132 kV (ETI/PSI/20)
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Earthing blade assembly for isolators, 132 kV(ETI/PSI/20A)
Earthing blade assembly for isolators, 132 kV(ETI/PSI/20A)
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Double pole & triple pole motor operated Isolators, 132 kV (ETI/PSI/20B)
Double pole & triple pole motor operated Isolators, 132 kV (ETI/PSI/20B)
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Lead acid batteries 110V, 400 Ah (ETI/PSI/21)
Lead acid batteries 110V, 400 Ah (ETI/PSI/21)
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Double pole & triple pole circuit breakers, 132KV (ETI/PSI/23)
Double pole & triple pole circuit breakers, 132KV (ETI/PSI/23)
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Double pole & triple pole circuit breakers, 110KV (ETI/PSI/23A)
Double pole & triple pole circuit breakers, 110KV (ETI/PSI/23A)
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Battery charger for 110V batteries, 220 Ah (ETI/PSI/24)
Battery charger for 110V batteries, 220 Ah (ETI/PSI/24)
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Lead acid batteries 110V, 200 Ah (ETI/PSI/25)
Lead acid batteries 110V, 200 Ah (ETI/PSI/25)
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Railway traction sub-station control relay board ETI/PSI/27)
Railway traction sub-station control relay board ETI/PSI/27)
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Low tension distribution panels for railway ac traction sub-station (ETI/PSI/29)
Low tension distribution panels for railway ac traction sub-station (ETI/PSI/29)
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Annealed copper conductor
Annealed copper conductor
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Copper busbar
Copper busbar
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Splices and ending clamps
Splices and ending clamps
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Steel tubes
Steel tubes
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Hot dip zinc coating
Hot dip zinc coating
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Stainless steel wire rope
Stainless steel wire rope
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Solid core porcelain insulators
Solid core porcelain insulators
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25kV single/double pole isolators
25kV single/double pole isolators
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Steel and stainless steel bolts, nuts, and washers
Steel and stainless steel bolts, nuts, and washers
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Aluminum alloy sections and tubes
Aluminum alloy sections and tubes
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Dynamometers
Dynamometers
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Pull lifts
Pull lifts
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Drawing standard for traction
Drawing standard for traction
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Standard insulator assembly (no sectioning)
Standard insulator assembly (no sectioning)
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Double wire section insulator (obsolete)
Double wire section insulator (obsolete)
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Enamelled steel plates
Enamelled steel plates
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Galvanized steel wire
Galvanized steel wire
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Hard drawn copper catenary (WKR)
Hard drawn copper catenary (WKR)
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Hard drawn grooved copper contact wire (AC)
Hard drawn grooved copper contact wire (AC)
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PVC handrail covering used for traction bond
PVC handrail covering used for traction bond
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Winch type regulating equipment
Winch type regulating equipment
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Three pulley regulating equipment
Three pulley regulating equipment
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25 kV AC OHE Fittings
25 kV AC OHE Fittings
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Cadmium copper conductor
Cadmium copper conductor
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Discharge/Earthing Pole
Discharge/Earthing Pole
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Interlock for AC traction switchgears
Interlock for AC traction switchgears
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OHE layout plans
OHE layout plans
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Contact wire from copper wire rods
Contact wire from copper wire rods
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8 wheeler OHE Inspection Car
8 wheeler OHE Inspection Car
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Short neutral section assembly
Short neutral section assembly
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Solid core cylindrical post insulator system
Solid core cylindrical post insulator system
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Continuous cast wire rods
Continuous cast wire rods
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Polymer insulators
Polymer insulators
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Toughened Glass Insulators
Toughened Glass Insulators
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Rubber mat for overhead structure
Rubber mat for overhead structure
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25 kV AC single phase series capacitor
25 kV AC single phase series capacitor
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20/27 MVA Transformer
20/27 MVA Transformer
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280 KVA Booster Transformer
280 KVA Booster Transformer
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10 KVA dry type cast resin LT supply transformer
10 KVA dry type cast resin LT supply transformer
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Metal Oxide Gapless Lightning Arrestor (132 kV)
Metal Oxide Gapless Lightning Arrestor (132 kV)
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3.3 MVA 3-phase rectifier transformer
3.3 MVA 3-phase rectifier transformer
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25 kV Potential Transformer
25 kV Potential Transformer
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25 kV Current Transformer
25 kV Current Transformer
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220 kV AC Isolator
220 kV AC Isolator
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Metal Oxide Gapless Lightning Arrestor (220 kV)
Metal Oxide Gapless Lightning Arrestor (220 kV)
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Lead acid batteries 24 V type I & II
Lead acid batteries 24 V type I & II
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Standards for drawings for power supply installations
Standards for drawings for power supply installations
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Potential transformers, 132 kV
Potential transformers, 132 kV
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Current transformer, 132 kV (Type II)
Current transformer, 132 kV (Type II)
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Battery charger type I & II, 24V
Battery charger type I & II, 24V
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Selective frequency level meter analyzer
Selective frequency level meter analyzer
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Impulse recorder
Impulse recorder
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Double pole & triple pole isolator, 110kV
Double pole & triple pole isolator, 110kV
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Lightning arrestors, 96 kV
Lightning arrestors, 96 kV
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Control & distribution panel for color light signalling supply
Control & distribution panel for color light signalling supply
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Electrical distribution system in stations & yards
Electrical distribution system in stations & yards
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Single pole vacuum circuit breakers, 25 kV
Single pole vacuum circuit breakers, 25 kV
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Telemetering equipment for 25 kV, AC traction
Telemetering equipment for 25 kV, AC traction
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Double pole & triple pole isolators, 66 kV
Double pole & triple pole isolators, 66 kV
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Earthing blade assembly for double pole & triple pole isolators, 66 kV
Earthing blade assembly for double pole & triple pole isolators, 66 kV
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Double pole & triple pole motor operated isolators, 66 kV
Double pole & triple pole motor operated isolators, 66 kV
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Lightning arrestors, 60 kV
Lightning arrestors, 60 kV
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Potential transformers, 66 kV
Potential transformers, 66 kV
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Obsolete Document
Obsolete Document
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Single-pole circuit breaker (25kV)
Single-pole circuit breaker (25kV)
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Booster transformer (25kV)
Booster transformer (25kV)
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25kV Dropout fuse switch
25kV Dropout fuse switch
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25kV/240V LT transformer (10kVA)
25kV/240V LT transformer (10kVA)
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25kV/240V LT transformer (100kVA)
25kV/240V LT transformer (100kVA)
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Admittance relay (25kV)
Admittance relay (25kV)
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Lightning arrester (120kV)
Lightning arrester (120kV)
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Valve type Lightning arrester (42kV)
Valve type Lightning arrester (42kV)
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Double/Triple pole isolator (132kV)
Double/Triple pole isolator (132kV)
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Earthing blade assembly (132kV isolators)
Earthing blade assembly (132kV isolators)
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Motor-operated isolators (132kV)
Motor-operated isolators (132kV)
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Lead-acid batteries (110V, 400Ah)
Lead-acid batteries (110V, 400Ah)
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Double/Triple pole circuit breakers (132kV)
Double/Triple pole circuit breakers (132kV)
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Battery charger (110V, 220Ah)
Battery charger (110V, 220Ah)
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Lead-acid batteries (110V, 200Ah)
Lead-acid batteries (110V, 200Ah)
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Railway traction sub-station control relay board
Railway traction sub-station control relay board
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Low tension distribution panel (railway)
Low tension distribution panel (railway)
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25 kV AC Traction System Bonding & Earthing Code
25 kV AC Traction System Bonding & Earthing Code
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Axle car for contact wire winding/unwinding
Axle car for contact wire winding/unwinding
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Aluminum alloy catenary wire
Aluminum alloy catenary wire
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Bimetallic strip for kV traction OHE
Bimetallic strip for kV traction OHE
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Grooved contact wire
Grooved contact wire
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Electrification mast painting code
Electrification mast painting code
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Prestressed concrete OHE masts
Prestressed concrete OHE masts
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Zinc coating for OHE masts
Zinc coating for OHE masts
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Cold-rolled formed masts
Cold-rolled formed masts
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FLO-COAT STEEL TUBES
FLO-COAT STEEL TUBES
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Battery charger (110V, 40Ah)
Battery charger (110V, 40Ah)
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Lightning Arrestor (7.5 kV)
Lightning Arrestor (7.5 kV)
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Interruptors (25 kV)
Interruptors (25 kV)
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Potential Transformers (25 kV)
Potential Transformers (25 kV)
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Annealed standard copper conductor
Annealed standard copper conductor
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Copper busbar
Copper busbar
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Splices and ending clamps
Splices and ending clamps
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Steel tubes
Steel tubes
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Hot dip zinc coating
Hot dip zinc coating
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Stainless steel wire rope
Stainless steel wire rope
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Solid core porcelain insulators
Solid core porcelain insulators
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25 kV single/double pole isolators
25 kV single/double pole isolators
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Steel and stainless steel bolts, nuts, and washers
Steel and stainless steel bolts, nuts, and washers
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Aluminum alloy sections and tubes
Aluminum alloy sections and tubes
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Dynamometers
Dynamometers
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Pull lifts
Pull lifts
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Drawing standard for traction
Drawing standard for traction
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Standard insulator assembly (no sectioning)
Standard insulator assembly (no sectioning)
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Double wire section insulator (obsolete)
Double wire section insulator (obsolete)
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Enamelled steel plates
Enamelled steel plates
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Galvanized steel wire
Galvanized steel wire
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Hard drawn copper catenary (WKR)
Hard drawn copper catenary (WKR)
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Hard drawn grooved copper contact wire (AC)
Hard drawn grooved copper contact wire (AC)
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PVC handrail covering used for traction bond
PVC handrail covering used for traction bond
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400 KVA Transformer
400 KVA Transformer
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25 kV Dropout Fuse Switch
25 kV Dropout Fuse Switch
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13.5/20 MVA Transformer
13.5/20 MVA Transformer
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Insulating Transformer Oil Purification
Insulating Transformer Oil Purification
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Low Tension Distribution Panels
Low Tension Distribution Panels
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Control & Relay Panel Board (25 kV)
Control & Relay Panel Board (25 kV)
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Single Pole SF-6 Circuit Breaker (25 kV)
Single Pole SF-6 Circuit Breaker (25 kV)
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25 kV Shunt Capacitor Equipment
25 kV Shunt Capacitor Equipment
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Hollow Porcelain Insulator
Hollow Porcelain Insulator
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Metal Oxide Gapless Lightning Arrestor (25 kV)
Metal Oxide Gapless Lightning Arrestor (25 kV)
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Single Pole Outdoor SF-6 Gas Interruptor (25 kV)
Single Pole Outdoor SF-6 Gas Interruptor (25 kV)
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Single-pole vacuum interruptor (25 kV)
Single-pole vacuum interruptor (25 kV)
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25 kV Single-phase Series Capacitor
25 kV Single-phase Series Capacitor
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SRC equipment/data acquisition
SRC equipment/data acquisition
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Lead acid batteries 24V type I & II
Lead acid batteries 24V type I & II
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Standards for drawings for power supply installations
Standards for drawings for power supply installations
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Potential transformers, 132 kV
Potential transformers, 132 kV
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Current transformer, 132 kV (Type II)
Current transformer, 132 kV (Type II)
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Battery charger type I & II for 24V lead acid batteries
Battery charger type I & II for 24V lead acid batteries
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Selective frequency level meter analyzer
Selective frequency level meter analyzer
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Impulse recorder
Impulse recorder
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Double pole & triple pole isolator 110 kV
Double pole & triple pole isolator 110 kV
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Lightning arrestors 96 kV
Lightning arrestors 96 kV
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Control & distribution panel for color light signaling supply
Control & distribution panel for color light signaling supply
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Electrical distribution system in stations & yards
Electrical distribution system in stations & yards
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Single pole vacuum circuit breakers, 25 kV
Single pole vacuum circuit breakers, 25 kV
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Telemetering equipment for 25 kV, AC traction
Telemetering equipment for 25 kV, AC traction
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Double pole & triple pole isolators, 66 kV
Double pole & triple pole isolators, 66 kV
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Earthing blade assembly for double pole & triple pole isolators, 66KV
Earthing blade assembly for double pole & triple pole isolators, 66KV
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Double pole & triple pole motor operated isolators, 66 kV
Double pole & triple pole motor operated isolators, 66 kV
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Lightning arrestors, 60 kV
Lightning arrestors, 60 kV
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Potential transformers, 66 kV
Potential transformers, 66 kV
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Study Notes
List of Specifications and Drawings for Equipments and Materials for Railway Electric Traction
- RDSO Specifications: Chapter I, Section I covers overhead equipment.
Conventional Overhead Equipment (OHE)
- Copper Conductors: Annealed standard copper for jumpers, conductor, busbars, and other components.
- Steel Components: Steel tubes, clamps, and other structural elements. Hot dip zinc coating is used for corrosion resistance.
- Insulators (Porcelain): Solid core porcelain insulators for 25 kV 50 Hz overhead lines.
- Insulators (Metal): Stainless steel bolts, nuts, and washers. Single and double pole isolators.
- Other Materials: Aluminum alloy sections and tubes used for various components of the overhead system. Stainless steel wire rope used for support. PVC covering on handrails. Withdrawn items (obsolete or superseded by other specifications): Pull lifts, sectioning insulators, etc.
Miscellaneous
- Cadmium Copper Conductors: Used for overhead railway traction.
- Discharge/Earthing Poles: Assembly for 25 kV AC traction.
- Interlocks: For AC traction switchgears.
- Principles for OHE Layout: Layout plans and sectioning diagrams for 25 kV AC traction.
- Copper Wire Rods: Continuous cast hot rolled electrolytic copper wire.
- OHE Inspection Car: Specifications for 8 wheeler cars for inspections.
- Insulators (Polymer): Polymer insulators are part of the 25 kV/50 Hz overhead traction line specification.
- Glass Insulators: Toughened glass insulators are used.
- Earthing Codes: Codes for bonding and earthing components of the 25 kV AC traction system.
- Aluminum OHE Components: Specifications for aluminum overhead equipment, including grooved contact wire and conductor wire of a specific dimension.
- Civil Engineering Specifications: Standards for OHE construction, including specifications for painting, concrete, and other materials.
- Power Supply Installations: Specifications, including battery chargers for 110-volt batteries (40 Ah), lightning arrestors (7.5 kV), and potential transformers (25 kV). Superseded items also listed. Specific information for 25kV AC/DC systems. Substation details.
- Drawing Standards: Standards for drawings for power supply installations and other parts of the OHE.
- Â Electrical Components: Detailed specification for various electrical components like transformers, circuit breakers, and other related items.
- Â Power Supply Specifications: Data for power supply (25kV AC system), including battery chargers, lightning arrestors, interruptors, boosters, and other related items.
- Â Drawing Modifications and Features: Various modifications, and specifications for drawings related to OHE and power supply components.
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Description
This quiz covers the specifications and drawings for equipment and materials used in railway electric traction. It includes details on overhead equipment, materials like copper, steel, and porcelain insulators, along with obsolete items. Test your knowledge on railway technologies and standards.
