SECTION
1. Scope
2. References
3. Service Conditions
3.1 Usual Service Conditions
3.2 Other Conditions that may affect Design and
Application
4. Definitions
5. Rating
5.1 Rating Information
5.2 Rated maximum Voltage
5.3 Rated Frequency
5.4 Rated Continuous Current
5.4.1 Conditions of Continuous Current Rating
5.4.2 Limits of Observable Temperature Rise
5.4.2.1 Classification of Insulating
Materials
5.5 Rated Minimum Actuating Current
5.6 Rated Symmetrical Interrupting (Load current
switching) Current (Manual operation only)
5.7 Rated Marking Current
5.8 Rated Momentary Current
5.9 Rated 1 s Current
5.10 Rated 10 s Current
5.11 Rated Dielectric Withstand Voltage
5.12 Overload Rating
5.13 Rated control voltage and Ranges
5.14 Rated Cable Charging Interrupting Current (where
applicable)
6. Design Tests
6.1 General
6.1.1 Condition of Device to be Tested
6.1.2 Mounting of Device
6.1.3 Grounding Device
6.1.4 Frequency
6.1.5 Control Voltage
6.2 Insulation (Dielectric tests)
6.2.1 Withstand Test Voltage
6.2.2 Electrical Connections
6.2.3 Points of Application of Test Voltage
6.2.4 Temperature
6.2.5 Dielectric Test Procedures and Voltage
Measurements
6.3 Interrupting Tests
6.3.1 Load Current Interrupting Tables
6.3.1.1 Test Conditions
6.3.1.2 Test Procedure
6.3.2 Cable Charging Current Interrupting Test
6.3.2.1 Test Conditions
6.3.2.2 Test Procedure
6.3.2.3 Performance
6.3.3 Transformer Magnetizing Current Interruption
Test
6.3.3.1 Test Conditions
6.3.3.2 Test Procedure
6.3.3.3 Performance
6.4 Standard Operating Duty Tests
6.4.1 Operating Duty Tests for Load Interrupting
Sectionalizers
6.4.2 Operating Duty Tests for Nonload
Interrupting Sectionalizers
6.4.3 Operating Performance
6.4.4 Condition After Standard Operating Duty
Tests
6.4.5 Interpretation of Standard Operating Duty
Tests
6.5 Making and Momentary Current tests
6.6 Minimum Actuating Current Tests
6.6.1 Test Circuit
6.6.2 Test Procedure
6.7 Partial Discharge Tests
6.8 Radio Influence Voltage (RIV) Tests
6.8.1 Test Voltages and Limits
6.8.2 Test Conditions
6.8.2.1 Proximity of Other Apparatus
6.8.2.2 Oil-Filled Sectionalizers
6.8.2.3 Electrical Connections
6.8.2.4 Ambient Radio Noise
6.8.2.5 Atmospheric Conditions
6.8.3 Test Equipment and Procedure
6.8.3.1 Procedure
6.8.3.2 Tests on Multipole Devices
6.8.3.3 Tests on Assembled Apparatus
6.8.3.4 Precautions
6.9 Short-Time Current Tests
6.9.1 Determination of 1 s and 10 s Currents
6.9.2 Condition After Test
6.10 Surge Current Test-Series Coil Sectionalizers
6.10.1 Test Conditions
6.10.2 Test Procedure
6.10.3 Condition After Test
6.11 Temperature Rise Test
6.11.1 Test Conditions
6.11.2 Electrical Conditions
6.11.3 Test Procedure
6.11.3.1 Method of Temperature Determination
6.11.3.2 Value of Ambient Temperature During
Test
6.11.3.3 Determination of the Ambient
Temperature
6.11.3.3.1 Placing of Thermocouples
6.11.3.3.2 Use of Oil Cup
6.12 Mechanical Operation Test
6.12.1 Mechanical Duty test
6.12.2 Cold Temperature Test
6.13 Control Elements Surge Withstand Capability Tests
6.13.1 Oscillatory Surge Tests
6.13.1.1 Test Procedure
6.13.2 Simulated Surge Arrester Operation Test
6.13.2.1 Test Procedure
6.13.3 Condition of Control During and after Test
7. Production Tests
7.1 Counting and Overcurrent Trip Calibration
7.2 Control, Secondary Wiring, and Accessory Devices
Check Tests
7.3 Dielectric Withstand Test-1 min Dry Power
Frequency
7.4 Mechanical Operation Tests
7.5 Leak Test
8. Construction Requirements
8.1 Tank Construction
8.2 Grounding Provisions
8.3 Insulating Medium Quantity Indicators (Submersible
sectionalizers)
8.4 Oil Sampling Provisions (Submersible
Sectionalizers)
8.5 Manual Operating Provision
8.5.1 Submersible or Dry-Vault Sectionalizer
8.5.2 Pad-Mounted Sectionalizers
8.6 Position Indicator
8.7 Nameplate Markings
8.8 Stored Energy Mechanism Charge Indicator
8.9 Separate Mounting of Control Apparatus
8.10 Counters
8.11 Conductor Terminal Sizes
8.12 Vacuum Interrupters
9. Application Considerations
9.1 Unusual Service Conditions
9.2 Safety Provisions
FIGURES
Fig 1 Load Current Switching Interrupting Circuits (a)
Three-Phase Circuit (b) Single-Phase Test Circuit
Fig 2 Cable Charging Current Interrupting Test Circuit
Fig 3 Magnetizing Current Test Circuits (a) Test Circuit
Wye Connected (b) Test Circuit-Delta Connected
Fig 4 Surge Withstand Test Circuits-Control (a) Control
Element with Sectionalizer (b) Control with
Transformer.
TABLES
Table 1 Preferred Ratings & Performance Characteristics
of Automatic Line Sectionalizers
Table 2 Preferred Ratings of Automatic Line
Sectionalizers
Table 3A Temperature Limits for Insulating Materials as
used in Automatic Line sectionalizers
Table 3B Temperature Limits for Contacts, Conducting
Joints, or Bushing Terminals when clean and
bright as used in Automatic Line
Sectionalizers
Table 4 Rated Control Voltages and Ranges for
Sectionalizers
Table 5 Preferred Cable Charging Interrupting Current
Ratings
Table 6 Test Voltages and Limits of Conducted Radio
Influence Voltage
Table 7 Size of Bare Copper Leads
Table 8 Size of Aluminium Cable Leads
Table 9 Altitude Correction Factors