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NECA 400 : 2007
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The latest, up-to-date edition.
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INSTALLING AND MAINTAINING SWITCHBOARDS
12-01-2013
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
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