Maricopa Community Colleges  ABC264   19956-20046 
Official Course Description: MCCCD Approval: 04/25/95
ABC264 19956-20046 LEC 2 Credit(s) 2 Period(s)
High Voltage Terminations & Splices
Terminations and splices in high voltage (600+ volts) systems. Identifying and splicing specific types of cable and making terminations. Also includes using splicing kits and following manufacturer's specifications. Calculating loads and designing circuits for specific facilities. Prerequisites: (Indentured status with the Arizona Builders Alliance) and ABC130 and ABC223 or permission of the apprenticeship coordinator.
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MCCCD Official Course Competencies:
 
ABC264   19956-20046 High Voltage Terminations & Splices
1. Define terms related to high voltage electrical cable and identify specific types of high voltage power cables, their insulation, jacket, shield and wire characteristics. (I,II)
2. Identify reasons for splicing, step-by-step procedures for splicing different types of splices, and splicing precautions. (III)
3. Describe specific classes of terminations, the role of stress control, grounding terminations and external environmental factors. (IV)
4. Describe Hipot testing, the specific types of Hipot testing and calculate using specific formulas. (V)
5. Describe "go-no-go" testing, including the step by step procedure and calculate test results with formula to determine insulation resistance measurements. (V)
6. Describe basic procedures for making electrical load calculations for specific service loads and the role of the National Electrical Code (NEC). (VI)
7. Calculate electrical loads for residential settings including single home, multiple family dwellings and appliance loads. (VII)
8. Describe procedures of load calculations for commercial and industrial facilities and the variables to such calculations. (VIII)
9. Calculate specific loads required for commercial buildings, including primary feeder loads, service loads, lighting, motors, special loads, and HVAC. (VIII)
10. Calculate specific load requirements for a mobile home/RV park facility. (IX)
11. Calculate specific required loads for a restaurant and a hotel/motel facility. (X, XI)
12. Calculate specific required loads for a school and a farm. (XII, XIII)
13. Calculate specific required loads for an industrial motor control center.(XIV)
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MCCCD Official Course Outline:
 
ABC264   19956-20046 High Voltage Terminations & Splices
    I. High voltage cable overview
        A. Terms and definitions
          1. American wire gage
          2. Cable, armored
          3. Cable, belted
          4. Cable, duplex
          5. Cable, parkway
          6. Conductor
          7. Hi-pot test
          8. Shield
          9. Other
        B. Straight splices
      II. High Voltage Power Cable
          A. Common cable types
            1. Ribbon tape shielded
            2. Drain wire shielded
            3. Cable unishield
            4. Concentric neutral
            5. Jacketed concentric neutral
          B. High voltage cable components
            1. Concentric stranding (class b)
            2. Compressed stranding
            3. Compact stranding
            4. Solid wire
          C. Strand shielding
          D. Insulation
            1. 100 percent
            2. 133 percent
            3. 173 percent
          E. Insulation shield system
          F. Jacket
        III. Splicing
            A. Splicing need
            B. Splicing steps
              1. Prepare the surface
              2. Join conductors with connectors
              3. Reinsulate
              4. Reshield
              5. Rejacket
            C. In-line tape splice
              1. Prepare cable
              2. Connect conductors
              3. Apply primary insulation
              4. Apply outer sheath
            D. Tee tape splice
            E. Quick in-line splicing kits
              1. Prepare cables
              2. Install splice
              3. Install shield continuity assembly
              4. Install PST cold-shrink insulators
              5. Ground splice
            F. Precautions
          IV. Terminations
              A. Classes - definitions
                1. Class 1
                2. Class 2
                3. Class 3
              B. Stress control
                1. Geometric
                2. Capacitive
              C. External leakage insulation - terminations
              D. External environment
            V. Hi-pot Testing
                A. Test function and description
                B. Use of direct current
                C. Test types and formulas
                  1. Design
                  2. Factory
                  3. Acceptance
                  4. Proof
                  5. Maintenance
                  6. Fault locating
                D. Methods of application
                  1. Leakage current
                  2. Current vs. time
                E. Selective guard circuits
                F. Connections
                  1. Safety procedures
                  2. Step-by-step procedures
                  3. Reading the results
                G. Selective guard circuit connections
                  1. Metered return
                  2. Bypass return
                  3. Grounding switch
                H. Corona guard ring and corona shield
                I. Detailed operating procedure
                J. Go-no-go testing
                K. Insulation resistance measurements
                  1. Formula: R=E/I
                  2. Vibrotest
              VI. Electrical Load Calculations
                  A. Terms and definitions
                    1. Continuous load
                    2. Controller
                    3. Demand factor
                    4. Feeder
                    5. Panelboard
                    6. Voltage to ground
                    7. Other
                  B. Role of the NEC
                VII. Basic Calculation Procedures
                    A. Calculating steps for service loads
                    B. Minimum service ratings
                      1. Rural pump house
                      2. Roadside vegetable stand
                    C. Single and multifamily dwellings
                      1. General lighting loads
                      2. Calculating electrical load
                      3. Small appliance loads
                      4. Laundry circuit
                      5. Demand factors
                      6. Required service size
                    D. Sizing neutral conductors
                    E. Optional calculations for single family dwellings
                    F. Multifamily dwelling calculations
                      1. Sample calculation
                      2. General lighting load
                      3. Appliance load
                      4. Total load
                  VIII. Commercial Occupancy Calculations
                      A. National electrical code (NEC)
                      B. Planning a commercial wiring installation
                        1. Medium commercial building
                        2. Large commercial building
                        3. Research
                        4. Working drawings
                      C. Retail stores with show windows
                        1. Procedures
                        2. Calculations
                      D. Office building
                        1. Load requirements
                        2. Procedure
                        3. Calculations
                        4. Diagram/schematic
                      E. Calculations for the primary feeder
                      F. Main service calculations
                        1. Type of loads
                        2. Load in amperes
                        3. Neutral
                        4. NEC requirements
                    IX. Mobile Home and RV Park
                        A. Sizing electrical service for mobile homes
                        B. Types of equipment
                          1. Power outlets
                          2. Services
                          3. Conduit
                        C. Sizing electrical services and feeders for parks
                      X. Restaurants
                          A. Service load
                          B. Conductor type
                        XI. Service for Hotels and Motels
                            A. Service load
                            B. Conductor type
                          XII. Optional Calculations for Schools
                              A. Service load
                              B. NEC reference
                            XIII. Farm Load Calculations
                                A. Farms service requirements
                                B. Single phase transformer
                                C. Three phase service
                                D. Feeder loads
                              XIV. Industrial Motor Control Center
                                  A. Feeder sizing
                                  B. Motor control schedule
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