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February 27, 2017

Content of IEC 61284:1997 Overhead lines – Requirements and tests for fittings

International standard IEC 61284:1997 “Overhead lines – Requirements and tests for fittings” has defined requirements and test methods of electrical fittings (line hardware) for overhead lines. The complete IEC standard includes English and French language version, it’s too long and a little difficult for quick explore. Here we quote the content of IEC 61284 for users to know which tests are required and which test machines are to be used for these tests.

The machine recommended in this article is produced by Contune International Corporation, which is a powerful manufacturer of test machine of electrical items in hardware and insulator test field. The content copyright belongs to its original author “International Electrotechnical Commission Information Handling Services”.

CONTENTS
FOREWORD

  1. Scope
  2. Normative references
  3. Definitions
  4. Requirements
    1. General requirements
      1. Design
      2. Materials
      3. Dimensions and tolerances
      4. 4.1.4 Protection against corrosion
      5. 4.1.5 Marking
      6. 4.1.6 Instructions for assembly
    2. Requirements for specific fittings
      1. 4.2.1 Insulator set fittings and earth wire fittings
      2. Suspension clamps
      3. Fittings for jointing, terminating and repairing conductor and earth wire
      4. 4.2.4 Insulator protective fittings
  5. Quality assurance
  6. Classification of tests – type tests, sample tests, routine tests
    1. Type tests
      1. General
      2. Application
    2. Sample tests
      1. General
      2. Application
      3. Sampling and acceptance criteria
    3. Routing tests
      1. General
      2. Application and acceptance criteria
  7. Visual examination
  8. Dimensional and material verification
  9. Hot dip galvanizing
  10. Non-destructive testing
  11. Mechanical tests
    1. Number of fittings to be tested
    2. Test piece and attachments for mechanical damage and failure load tests, conductors used in the mechanical tests
    3. Insulator set fittings and earth wire fittings
      1. Mechanical damage and failure load test
      2. Mechanical damage and failure load test of the attachment point used during erection
    4. Suspension clamps
      1. Vertical damage load and failure load test
      2. Slip test on standard clamps with a specified minimum and maximum slip load
      3. Slip test on standard clamps with only specified minimum slip load
      4. Slip test on controlled slippage clamps
      5. Clamp bolt tightening test
    5. Tension clamps, dead-end tension joints and mid-span tension joints
      1. Tensile test
      2. Mechanical damage and failure load test
      3. Mechanical damage and failure load test of the attachment point used during erection
      4. Clamp bolt tightening test
    6. Partial tension fittings
      1. Partial tension fittings other than T connectors
      2. T connectors
    7. Repair sleeves
    8. Insulator protective fittings
  12. Magnetic losses test
    1. General
    2. Test procedure
  13. Heat cycle tests
    1. Purpose
    2. Joints
      1. General
      2. Service temperatures
      3. Classification for test purposes
    3. Test specimens
      1. General
      2. Multi-range connectors
      3. Preparation
      4. Data on test specimens
    4. Test arrangements
      1. Test conditions
      2. Reference conductor
      3. Potential points
      4. Installation of the test loop
      5. Measurements
    5. Heat cycle test procedure
      1. General
      2. Joints of class A
      3. Joints of class B
  14. Corona and radio interference voltage (RIV) tests
    1. Purpose
    2. Description of test methods
    3. General
    4. Test circuit and instruments
    5. Corona and RIV test procedures
    6. Acceptance criteria
    7. Test report
    8. Voltage method
      1. Adjacent conductors in a three-phase system
      2. Test set-up and dimensions
      3. Critical variant
      4. Distance from wall (reflection plane) w
      5. Minimum clearance from adjacent live components
      6. Metallic wall
    9. Voltage gradient method
      1. Conductor voltage on three-phase system
      2. Test set-up and dimensions
      3. Test method

 

ANNEXES

  1. Typical joint types
  2. Typical test circuit – Class A joints
  3. Typical test circuit – Class B joints
  4. Diagrammatic representation of heat cycle test sequence
  5. Mathematical acceptance criterion
  6. Examples of normative documents recommended for fitting materials
  7. Potential points
  8. Test voltage calibration device
  9. Example of sampling with inspection by attributes
  10. Example of sampling with inspection by variables

 

Contune International Corporation is able to customize test machine for clients based on specific demand. For tensile failing load test in sample test and routine test, we recommend “Horizontal tensile testing machine”.

International standard IEC 61284:1997 “Overhead lines – Requirements and tests for fittings” has defined requirements and test methods of electrical fittings (line hardware) for overhead lines. The complete IEC standard includes English and French language version, it’s too long and a little difficult for quick explore. Here we quote the content of IEC 61284 for users to know which tests are required and which test machines are to be used for these tests.

The machine recommended in this article is produced by Contune International Corporation, which is a powerful manufacturer of test machine of electrical items in hardware and insulator test field. The content copyright belongs to its original author “International Electrotechnical Commission Information Handling Services”.

CONTENTS

FOREWORD

  1. Scope
  2. Normative references
  3. Definitions
  4. Requirements
    1. General requirements
      1. Design
      2. Materials
      3. Dimensions and tolerances
      4. 4.1.4 Protection against corrosion
      5. 4.1.5 Marking
      6. 4.1.6 Instructions for assembly
    2. Requirements for specific fittings
      1. 4.2.1 Insulator set fittings and earth wire fittings
      2. Suspension clamps
      3. Fittings for jointing, terminating and repairing conductor and earth wire
      4. 4.2.4 Insulator protective fittings
  5. Quality assurance
  6. Classification of tests – type tests, sample tests, routine tests
    1. Type tests
      1. General
      2. Application
    2. Sample tests
      1. General
      2. Application
      3. Sampling and acceptance criteria
    3. Routing tests
      1. General
      2. Application and acceptance criteria
  7. Visual examination
  8. Dimensional and material verification
  9. Hot dip galvanizing
  10. Non-destructive testing
  11. Mechanical tests
    1. Number of fittings to be tested
    2. Test piece and attachments for mechanical damage and failure load tests, conductors used in the mechanical tests
    3. Insulator set fittings and earth wire fittings
      1. Mechanical damage and failure load test
      2. Mechanical damage and failure load test of the attachment point used during erection
    4. Suspension clamps
      1. Vertical damage load and failure load test
      2. Slip test on standard clamps with a specified minimum and maximum slip load
      3. Slip test on standard clamps with only specified minimum slip load
      4. Slip test on controlled slippage clamps
      5. Clamp bolt tightening test
    5. Tension clamps, dead-end tension joints and mid-span tension joints
      1. Tensile test
      2. Mechanical damage and failure load test
      3. Mechanical damage and failure load test of the attachment point used during erection
      4. Clamp bolt tightening test
    6. Partial tension fittings
      1. Partial tension fittings other than T connectors
      2. T connectors
    7. Repair sleeves
    8. Insulator protective fittings
  12. Magnetic losses test
    1. General
    2. Test procedure
  13. Heat cycle tests
    1. Purpose
    2. Joints
      1. General
      2. Service temperatures
      3. Classification for test purposes
    3. Test specimens
      1. General
      2. Multi-range connectors
      3. Preparation
      4. Data on test specimens
    4. Test arrangements
      1. Test conditions
      2. Reference conductor
      3. Potential points
      4. Installation of the test loop
      5. Measurements
    5. Heat cycle test procedure
      1. General
      2. Joints of class A
      3. Joints of class B
  14. Corona and radio interference voltage (RIV) tests
    1. Purpose
    2. Description of test methods
    3. General
    4. Test circuit and instruments
    5. Corona and RIV test procedures
    6. Acceptance criteria
    7. Test report
    8. Voltage method
      1. Adjacent conductors in a three-phase system
      2. Test set-up and dimensions
      3. Critical variant
      4. Distance from wall (reflection plane) w
      5. Minimum clearance from adjacent live components
      6. Metallic wall
    9. Voltage gradient method
      1. Conductor voltage on three-phase system
      2. Test set-up and dimensions
      3. Test method

 

ANNEXES

  1. Typical joint types
  2. Typical test circuit – Class A joints
  3. Typical test circuit – Class B joints
  4. Diagrammatic representation of heat cycle test sequence
  5. Mathematical acceptance criterion
  6. Examples of normative documents recommended for fitting materials
  7. Potential points
  8. Test voltage calibration device
  9. Example of sampling with inspection by attributes
  10. Example of sampling with inspection by variables

Contune International Corporation is able to customize test machine for clients based on specific demand. For tensile failing load test in sample test and routine test, we recommend “Horizontal tensile testing machine”.

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