Article 495 – Equipment Over 1000 Volts ac, 1500 Volts dc, Nominal
Part I. General.
495.1 Scope.
495.2 Reconditioned Equipment.
495.3 Other Articles.

Part II. Equipment - Specific Provisions.
495.22 Isolating Means.
495.23 Voltage Regulators.
495.24 Minimum Space Separation.
495.25 Backfeed.

Part III. Equipment - Switchgear and Industrial Control Assemblies.
495.30 General.
495.31 Arrangement of Devices in Assemblies.
495.32 Guarding of Energized Parts Within a Compartment.
495.23 Guarding of Energized Parts Operating at 1000 Volts, Nominal, or Less Within Compartments.
495.34 Clearance for Cable Conductors Entering Enclosure.
495.35 Accessibility of Energized Parts.
495.37 Equipment Grounding Connections.
495.38 Door Stops and Cover Plates.
495.39 Gas Discharge from Interrupting Devices.
495.40 Visual Inspection Windows.
495.41 Location of Industrial Control Equipment.
495.42 Interlocks - Interrupting Switches.
495.43 Storage Energy for Opening.
495.44 Fused Interrupter Switches.
495.45 Circuit Breakers - Interlocks.
495.46 Circuit Breaker Locking.
495.47 Switchgear Used as Service Equipment.
495.48 Substation Design, Documentation, and Required Diagram.
495.49 Reconditioned Switchgear.

Part IV. Mobile and Portable Equipment.
495.61 General.
495.62 Overcurrent Protection.
495.63 Enclosures.
495.64 Collector Rings.
495.65 Power Cable Connections to Mobile Machines.
495.66 High Voltage Portable Cable for Main Power Supply.

Part V. Boilers.
495.70 General.
495.71 Electrical Supply System.
495.72 Branch-Circuit Requirements.
495.73 Pressure and Temperature Limit Control
495.74 Bonding.

Material taken from the National Electric Code. is reprinted with permission from NFPA 70., 2023 edition. National Electrical Code®, Copyright 2022, National Fire Protection Association, Quincy, MA. All rights reserved.