NECA 400 : 2007

Foreword
1. Scope
2. Switchboard Receiving, Handling and Storage
    2.1 Receiving the Switchboard
    2.2 Handling the Switchboard
    2.3 Storing the Switchboard
3. Installation
    3.1 Location
    3.2 Foundation Preparation
    3.3 General Installation Instructions
    3.4 Installing Vertical Sections
    3.5 Joining Switchboard Sections
    3.6 Anchoring the Switchboard
    3.7 Installing Cables
    3.8 Installing Interconnection between Switchboard Sections
    3.9 Ground Bus Splice Connections
    3.10 Grounding and Bonding
    3.11 Busway Connections
    3.12 Conduit Area
    3.13 Cable Pulling
    3.14 Cable Terminations
4. Pre-Energizing Checkout Procedure
    4.1 General
    4.2 Insulation Test
    4.3 Current Transformers
    4.4 Circuit Breakers and Fusible Switches
    4.5 Ground-Fault Protection
    4.6 Interconnection
    4.7 Power Fuses and Control Power Disconnect
    4.8 Clean-up
    4.9 Close-up
5. Energizing the Switchboard
6. Maintaining the Switchboard
    6.1 General Inspection
    6.2 Bus Bar Joints
    6.3 Field Testing Molded-Case Circuit Breakers
    6.4 Field Testing Bolted Pressure Switches
    6.5 Field Testing Fusible Switches
    6.6 Fuse Replacement
    6.7 Ground-Fault Protection Systems
7. Adverse Circumstances
    7.1 Inspection Following a Short-Circuit or Ground-Fault
         Condition
    7.2 Replacing a Switchboard Soaked by or Submerged
         Under Water
    7.3 Inspecting and Re-Energizing a Switchboard Sprayed
         or Splashed with Clean Water
8. Torque Requirements
9. Switchboard Insulation Resistance Chart
10. Operations and Maintenance Documents
Appendix A: Reference Standards

Describes installation procedures for deadfront distribution switchboards rated 600 volts or less. Also covers periodic routine maintenance procedures for switchboards and special procedures to be used after adverse circumstances, such as a short circuit, ground-fault, or immersion in water.