26 22 18
Low-Voltage Transformers for Load Centers
26 22 17
Low-Voltage Transformers for Nonlinear Loads
26 22 16
Low-Voltage Buck-Boost Transformers
26 22 13
Low-Voltage Distribution Transformers
26 22 00
Low-Voltage Transformers
26 21 16
Low-Voltage Underground Electrical Service Entrance
26 21 13
Low-Voltage Overhead Electrical Service Entrance
26 21 00
Low-Voltage Electrical Service Entrance
26 20 00
Low-Voltage Electrical Distribution
26 18 39
Medium-Voltage Motor Controllers
26 18 36
Medium-Voltage Enclosed Fuses
26 18 33
Medium-Voltage Enclosed Fuse Cutouts
26 18 29
Medium-Voltage Enclosed Bus
26 18 26
Medium-Voltage Reclosers
26 18 23
Medium-Voltage Surge Arresters
26 18 19
Medium-Voltage Lightning Arresters
26 18 16
Medium-Voltage Fuses
26 18 13
Medium-Voltage Cutouts
26 18 00
Medium-Voltage Circuit Protection Devices
26 16 00
Medium-Voltage Metering