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Questions and Answers
What is the primary focus of the document titled 'ELECTRIC POINT MACHINE NON TRAILABLE TYPE'?
What is the primary focus of the document titled 'ELECTRIC POINT MACHINE NON TRAILABLE TYPE'?
Which section is likely to contain safety precautions during the operation of the machine?
Which section is likely to contain safety precautions during the operation of the machine?
In which section would you expect to find information regarding the manufacturer of the electric point machine?
In which section would you expect to find information regarding the manufacturer of the electric point machine?
Which section would provide the dimensions and design features of the motor?
Which section would provide the dimensions and design features of the motor?
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What is the purpose of the 'Inspection and Testing' section?
What is the purpose of the 'Inspection and Testing' section?
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What materials can be used for the crank handle arrangement in the Electric Point Machine?
What materials can be used for the crank handle arrangement in the Electric Point Machine?
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Where can one find the warranties associated with the electric point machines?
Where can one find the warranties associated with the electric point machines?
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Which section addresses the assembly of the electric point machine?
Which section addresses the assembly of the electric point machine?
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Which of the following statements about sealing materials is true?
Which of the following statements about sealing materials is true?
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What is likely to be covered under 'Marking & Identifications'?
What is likely to be covered under 'Marking & Identifications'?
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What is the purpose of the cable gland provided at the cable entry holes?
What is the purpose of the cable gland provided at the cable entry holes?
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What should be done to the sealing material before each monsoon?
What should be done to the sealing material before each monsoon?
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Which of the following is NOT a sealing material mentioned for the Lock Rod arrangement?
Which of the following is NOT a sealing material mentioned for the Lock Rod arrangement?
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For what purpose must the openings in the Electric Point Machine case be designed?
For what purpose must the openings in the Electric Point Machine case be designed?
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Which assembly is indicated to contain a rubber gasket?
Which assembly is indicated to contain a rubber gasket?
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Which aspect is important for the cable entries of the Electric Point Machine?
Which aspect is important for the cable entries of the Electric Point Machine?
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Which material is used for the point machine cover?
Which material is used for the point machine cover?
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Which detail is NOT required to be engraved on the nameplate of the electric point machine?
Which detail is NOT required to be engraved on the nameplate of the electric point machine?
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What protective measure is specified for the external portion of the electric point machine?
What protective measure is specified for the external portion of the electric point machine?
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Which test is NOT part of the type tests conducted for the electric point machine?
Which test is NOT part of the type tests conducted for the electric point machine?
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What is the minimum level of environmental protection specified for the electric point machine's cover?
What is the minimum level of environmental protection specified for the electric point machine's cover?
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Which of the following components requires a suitable protective coating?
Which of the following components requires a suitable protective coating?
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What is the rated voltage specified for the electric point machine?
What is the rated voltage specified for the electric point machine?
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Which process is part of the inspection and testing to verify compliance with specifications?
Which process is part of the inspection and testing to verify compliance with specifications?
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Which type of load is specifically mentioned in the specifications of the electric point machine?
Which type of load is specifically mentioned in the specifications of the electric point machine?
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What components are included in the contractor unit assembly identified as S10921-22-23?
What components are included in the contractor unit assembly identified as S10921-22-23?
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Which assembly is associated with the component S10957?
Which assembly is associated with the component S10957?
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What is the function of the components listed under S10933-34-35-36?
What is the function of the components listed under S10933-34-35-36?
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Which of the following is NOT part of the assembly S10949-50-51-52?
Which of the following is NOT part of the assembly S10949-50-51-52?
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Which assembly involves a gasket within its components?
Which assembly involves a gasket within its components?
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What is the primary role of the components listed under S10961-62-63-64?
What is the primary role of the components listed under S10961-62-63-64?
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The component identified as S10965-66-67-68 contains which of the following?
The component identified as S10965-66-67-68 contains which of the following?
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What type of terminals are specified for the machine?
What type of terminals are specified for the machine?
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What type of assembly is S10920 classified as?
What type of assembly is S10920 classified as?
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What is the minimum spacing required for terminals?
What is the minimum spacing required for terminals?
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What is the minimum requirement for the cross-sectional area of conductors used in internal wiring?
What is the minimum requirement for the cross-sectional area of conductors used in internal wiring?
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What must be provided at both ends of each conductor for internal wiring?
What must be provided at both ends of each conductor for internal wiring?
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For maintenance purposes, what arrangement is suggested for the crank handle/key sockets?
For maintenance purposes, what arrangement is suggested for the crank handle/key sockets?
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What type of wiring diagram is required to be attached to the machine cover?
What type of wiring diagram is required to be attached to the machine cover?
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What ensures that wire connections can be easily tested?
What ensures that wire connections can be easily tested?
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What type of copper is specified for the conductors in internal wiring?
What type of copper is specified for the conductors in internal wiring?
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Which component is specifically identified as a type that deals with high thrust in the electric point machine?
Which component is specifically identified as a type that deals with high thrust in the electric point machine?
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What type of assembly is associated with the lock rod in the electric point machine?
What type of assembly is associated with the lock rod in the electric point machine?
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Which part is used for the electric point machine's crank handle assembly?
Which part is used for the electric point machine's crank handle assembly?
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Which item among the listed is NOT part of the slide cover section of the electric point machine?
Which item among the listed is NOT part of the slide cover section of the electric point machine?
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Identify the component that serves as a mechanism to control the lock slide within the electric point machine.
Identify the component that serves as a mechanism to control the lock slide within the electric point machine.
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Which two plates are included in the layout facing point BG of the electric point machine?
Which two plates are included in the layout facing point BG of the electric point machine?
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What is the primary function of the rubber gasket within the electric point machine?
What is the primary function of the rubber gasket within the electric point machine?
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Which component serves as the primary base for the electric point machine assembly?
Which component serves as the primary base for the electric point machine assembly?
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Flashcards
Rated Voltage
Rated Voltage
The maximum voltage the electric point machine can handle without damage.
Sequence of Operation
Sequence of Operation
The sequence of steps the electric point machine follows during operation, including actions of the motor, crank handle, and internal mechanisms.
Machine Case
Machine Case
The outer casing of the electric point machine, which protects internal components and provides a safe enclosure.
Motor
Motor
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Crank Handle
Crank Handle
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Terminals
Terminals
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Wiring
Wiring
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Operating Characteristic
Operating Characteristic
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Base
Base
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Drive Rod
Drive Rod
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Bracket RH
Bracket RH
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Bracket LH
Bracket LH
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Lock Rod RH/LH
Lock Rod RH/LH
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Cover Assembly
Cover Assembly
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Detector Rod LH/RH
Detector Rod LH/RH
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Main Gear Rack Pinion
Main Gear Rack Pinion
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Detachable Crank Handle/Key Socket
Detachable Crank Handle/Key Socket
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Terminal Type and Specifications
Terminal Type and Specifications
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Terminal Spacing and Accessibility
Terminal Spacing and Accessibility
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Terminal Location and Types
Terminal Location and Types
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Terminal Identification
Terminal Identification
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Internal Wiring Standards
Internal Wiring Standards
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Internal Wiring Specifications
Internal Wiring Specifications
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Disconnectable Wire Connections
Disconnectable Wire Connections
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NBR (Nitrile Butadine Rubber)
NBR (Nitrile Butadine Rubber)
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Viton/Silicone
Viton/Silicone
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EPDM (Ethylene propylene diene monomer)
EPDM (Ethylene propylene diene monomer)
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Lock Rod arrangement (LH/RH)
Lock Rod arrangement (LH/RH)
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Cable entry point
Cable entry point
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Crank handle arrangement
Crank handle arrangement
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IP67 Protection
IP67 Protection
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Point Machine cover
Point Machine cover
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What information must be on the nameplate of an electric point machine?
What information must be on the nameplate of an electric point machine?
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What parts of an electric point machine require protective coating?
What parts of an electric point machine require protective coating?
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What is the standard finish for an electric point machine?
What is the standard finish for an electric point machine?
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What is the purpose of inspecting an electric point machine?
What is the purpose of inspecting an electric point machine?
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What is a type test for an electric point machine?
What is a type test for an electric point machine?
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What are the specific components of a type test for an electric point machine?
What are the specific components of a type test for an electric point machine?
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What does the visual check in a type test entail?
What does the visual check in a type test entail?
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What is the purpose of the operating voltage test?
What is the purpose of the operating voltage test?
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Contractor Unit Assembly (S10916-17-18-19)
Contractor Unit Assembly (S10916-17-18-19)
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Contractor Unit Assembly - Transparent Cover (S10920)
Contractor Unit Assembly - Transparent Cover (S10920)
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Contactor Unit Assembly - Holding Pin Assembly (S10921-22-23)
Contactor Unit Assembly - Holding Pin Assembly (S10921-22-23)
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Contact Unit Assembly - Gasket/Stiffner (S10924A-24B)
Contact Unit Assembly - Gasket/Stiffner (S10924A-24B)
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Contactor Unit Assembly - Bracket Assembly (S10925-26)
Contactor Unit Assembly - Bracket Assembly (S10925-26)
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Bracket Assembly LH&RH Contact Assembly A (S10927)
Bracket Assembly LH&RH Contact Assembly A (S10927)
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Bracket Assembly LH&RH Contact Assembly B (S10928)
Bracket Assembly LH&RH Contact Assembly B (S10928)
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Bracket Assembly LH&RH - Roller B/Roller A (S10933-34-35-36)
Bracket Assembly LH&RH - Roller B/Roller A (S10933-34-35-36)
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Study Notes
Document Information
- Document Number: IRS: S: 24-2025
- Revision: 3.0
- Date Effective: 08.01.2025
- Document Title: ELECTRIC POINT MACHINE NON TRAILABLE TYPE
- Number of Pages: 26
- Prepared by: JRE/S&T
- Issued by: Exe. Director/Signal-II/RDSO
- Organization: Research Designs & Standards Organization, Lucknow – 226 011
Specification for Electric Point Machine
- This document details the specifications for a non-trailable Electric Point Machine.
- The document covers various aspects, including terminology, operation, components, and testing procedures.
- It includes specific types of electric point machines, differentiated by throw and protection type (IP67).
Document Data Sheet
- IRS: S: 24-2024
- Title of Document: SPECIFICATION FOR ELECTRIC POINT MACHIN NON TRAILABLE TYPE.
- Authors: Shri Dipu Shyam, Shri Suresh Kumar
- Positions: Executive Director/Signal-II/RDSO, Principal Executive Director / Signal & Telecom, RDSO
- Abstract: Defines the specification for electric point machine non-trailable type.
Document Control Sheet
- Organization: RDSO
- Function(s): Member, Approving Authority
- Levels: Prepare, Approve
Amendments
- The document lists various revisions and amendments for IRS standards related to Electric Point Machines through the years; including first release in 1963.
Amendment 1 (Details)
- This section provides details on specific clauses and amendments related to 450/580 kg test loads; modification to table, and inclusion of tools for maintenance in the point equipment specifications.
Table of Contents
- This table lists the sections and pages of the document, outlining its organization.
- Major section topics include scope, terminology, operating characteristics, manufacturing, inspection, and testing procedures.
Foreword
- Details required standards and specifications.
- Identifying Indian Railway Standards (IRS) and Indian Standards (IS) associated with the specifications.
Scope
- This document's scope covers the requirements of electric point machines with internal locking systems.
- Specific types mentioned: Electric Point Machine: 143 mm throw, Electric Point Machine: 220 mm throw, Electric Point Machine with IP 67 Protection: 143 mm throw, Electric Point Machine with IP 67 Protection: 220 mm throw.
Terminology
- Defines relevant terms in the context of electric point machines.
- Examples include "Electric Point Machine," "Electric Point Machine with IP67 protection," "Throw-Bar," "Lock Slide", and "Detector."
- Clarifies how these terms relate to the equipment's workings.
Sequence of Operations
- Outlines the standard operational sequences for the electric point machine.
- These procedures include opening/closing detection contacts, unlocking/locking points, and moving/positioning of points.
Rated Voltage
- The specified voltage for the electric point machine is 110V DC.
General Requirements
- The equipment needs robust design, proper protection from interference, and functionality even in submerged conditions.
- Details on IP 67 protection.
Operating Characteristics
- Indicates compliance with appropriate operating data.
- Operational limits; load specifications (e.g., 450 kg, 9000 kg); and details about the friction clutch.
Manufacture
- Details about manufacturer's responsibilities for drawing compliance, fits/tolerance; workmanship.
Marking & Identification
- Specifies marking procedures and standards to be followed by manufacturers.
Finish
- Details the finish requirements for various components.
- Types of paint (anti-corrosive) or material (galvanized/stainless steel) for certain components, depending on the application.
- Includes clauses related to specific point machine parts.
Inspection & Testing
- Outlines the inspection and testing procedures.
- Different tests are described, including Visual check, operating voltage test, Insulation Resistance Test and life test.
- Procedures for type tests and acceptance tests.
Packing
- Describes packing standards to be adhered to during transportation & transit.
Warranty
- Specifies warranty details for the point machine and the materials used.
Installation & Maintenance Manual
- Details the content of the installation and maintenance manual to accompany the electric point machine in terms of its procedures.
Tools & Accessories
- Lists the tools and accessories included with the equipment, describing types, dimensions, and compliance with specified standards.
- Includes details for tools specific to IP 67 protected designs.
Drawings / Annexure-1
- Drawings of individual components.
- Detailed lists of each part with corresponding drawing number, identifying features, and function.
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Description
Explore the detailed specifications of non-trailable Electric Point Machines, including terminology, operation, and testing procedures. This quiz covers the components and types of electric point machines as specified by the Research Designs & Standards Organization.