Electric Point Machine Specifications
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Questions and Answers

What is the primary focus of the document titled 'ELECTRIC POINT MACHINE NON TRAILABLE TYPE'?

  • Safety standards for electrical installations
  • Operational guidelines for different machinery types
  • User manuals for various tools and accessories
  • Specifications and requirements for electric point machines (correct)

    • Which section is likely to contain safety precautions during the operation of the machine?

  • General requirements (correct)
  • Wiring
  • Inspection and Testing
  • Machine case

    • In which section would you expect to find information regarding the manufacturer of the electric point machine?

  • Installation and maintenance manual
  • Packing
  • Manufacturer (correct)
  • Operating Characteristic

    • Which section would provide the dimensions and design features of the motor?

    <p>Motor</p> Signup and view all the answers

    What is the purpose of the 'Inspection and Testing' section?

    <p>To outline the quality assurance procedures</p> Signup and view all the answers

    What materials can be used for the crank handle arrangement in the Electric Point Machine?

    <p>Silicone/NBR</p> Signup and view all the answers

    Where can one find the warranties associated with the electric point machines?

    <p>Warranty</p> Signup and view all the answers

    Which section addresses the assembly of the electric point machine?

    <p>Installation and maintenance manual</p> Signup and view all the answers

    Which of the following statements about sealing materials is true?

    <p>The sealing arrangement must withstand maintenance activities.</p> Signup and view all the answers

    What is likely to be covered under 'Marking & Identifications'?

    <p>Compliance labels and identification codes</p> Signup and view all the answers

    What is the purpose of the cable gland provided at the cable entry holes?

    <p>To protect against dust and water with IP67 Protection.</p> Signup and view all the answers

    What should be done to the sealing material before each monsoon?

    <p>Its condition should be checked and replaced if needed.</p> Signup and view all the answers

    Which of the following is NOT a sealing material mentioned for the Lock Rod arrangement?

    <p>Polyurethane</p> Signup and view all the answers

    For what purpose must the openings in the Electric Point Machine case be designed?

    <p>To provide ample size and convenient access to terminals.</p> Signup and view all the answers

    Which assembly is indicated to contain a rubber gasket?

    Signup and view all the answers

    Which aspect is important for the cable entries of the Electric Point Machine?

    <p>They must be weather-proof.</p> Signup and view all the answers

    Which material is used for the point machine cover?

    <p>Silicone</p> Signup and view all the answers

    Which detail is NOT required to be engraved on the nameplate of the electric point machine?

    <p>Rated power output</p> Signup and view all the answers

    What protective measure is specified for the external portion of the electric point machine?

    <p>Coated with anti-corrosive black paint</p> Signup and view all the answers

    Which test is NOT part of the type tests conducted for the electric point machine?

    <p>Environmental resistance test</p> Signup and view all the answers

    What is the minimum level of environmental protection specified for the electric point machine's cover?

    <p>IP 67 Protection</p> Signup and view all the answers

    Which of the following components requires a suitable protective coating?

    <p>Crank handle contacts</p> Signup and view all the answers

    What is the rated voltage specified for the electric point machine?

    <p>110V, DC</p> Signup and view all the answers

    Which process is part of the inspection and testing to verify compliance with specifications?

    <p>Operating voltage test</p> Signup and view all the answers

    Which type of load is specifically mentioned in the specifications of the electric point machine?

    <p>Slipping load</p> Signup and view all the answers

    What components are included in the contractor unit assembly identified as S10921-22-23?

    <p>Holding Pin Assembly, Holding Pin, Pin for Nipple</p> Signup and view all the answers

    Which assembly is associated with the component S10957?

    <p>Oil felt arrangement</p> Signup and view all the answers

    What is the function of the components listed under S10933-34-35-36?

    <p>Roller B and Roller A for bracket assembly</p> Signup and view all the answers

    Which of the following is NOT part of the assembly S10949-50-51-52?

    <p>Pin for Nipple</p> Signup and view all the answers

    Which assembly involves a gasket within its components?

    <p>S10924A-24B</p> Signup and view all the answers

    What is the primary role of the components listed under S10961-62-63-64?

    <p>Locking the cover assembly</p> Signup and view all the answers

    The component identified as S10965-66-67-68 contains which of the following?

    <p>Rubber gasket and cover latch pin</p> Signup and view all the answers

    What type of terminals are specified for the machine?

    <p>M6 of nut type</p> Signup and view all the answers

    What type of assembly is S10920 classified as?

    <p>Contractor unit assembly</p> Signup and view all the answers

    What is the minimum spacing required for terminals?

    <p>20 mm</p> Signup and view all the answers

    What is the minimum requirement for the cross-sectional area of conductors used in internal wiring?

    <p>2 sq.mm</p> Signup and view all the answers

    What must be provided at both ends of each conductor for internal wiring?

    <p>An eyelet</p> Signup and view all the answers

    For maintenance purposes, what arrangement is suggested for the crank handle/key sockets?

    <p>Detachable arrangement</p> Signup and view all the answers

    What type of wiring diagram is required to be attached to the machine cover?

    <p>Engraved metallic diagram</p> Signup and view all the answers

    What ensures that wire connections can be easily tested?

    <p>Common terminal capability</p> Signup and view all the answers

    What type of copper is specified for the conductors in internal wiring?

    <p>Tinned copper</p> Signup and view all the answers

    Which component is specifically identified as a type that deals with high thrust in the electric point machine?

    <p>High Thrust Rotary Locking Type</p> Signup and view all the answers

    What type of assembly is associated with the lock rod in the electric point machine?

    <p>Lock arm assembly</p> Signup and view all the answers

    Which part is used for the electric point machine's crank handle assembly?

    <p>Spindle</p> Signup and view all the answers

    Which item among the listed is NOT part of the slide cover section of the electric point machine?

    <p>Lock arm assembly RH</p> Signup and view all the answers

    Identify the component that serves as a mechanism to control the lock slide within the electric point machine.

    <p>Locking Bar assembly</p> Signup and view all the answers

    Which two plates are included in the layout facing point BG of the electric point machine?

    <p>Insulation Plate R.H. and Insulation Plate L.H.</p> Signup and view all the answers

    What is the primary function of the rubber gasket within the electric point machine?

    <p>To provide sealing</p> Signup and view all the answers

    Which component serves as the primary base for the electric point machine assembly?

    <p>Base</p> Signup and view all the answers

    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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    ELECTRIC POINT MACHINE NON TRAILABLE TYPE PDF 2025

    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.

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