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Electrical and Communication Structures, Lightning
Protection, Instruments, Boxes, Panels and Control Centers, Central
Control, Security Access and Surveillance, Detection and Alarms,
Electrical, Basic Electrical Material and Methods, Grounding and
Bonding, Hangers and Supports, Electrical Identification, Electrical
Testing, Wiring Methods, Conductors and Cables, Raceway and Boxes,
Wiring Connections, Electrical Power, Electrical Utility Services,
Transformers, Power Filters and Conditioners, Transmission and
Distribution, Transmission and Distribution Accessories, High-Voltage
Switching and Protection, Medium-Voltage Switching and Protection,
Medium-Voltage Switching and Protection Assemblies, Unit Substations,
Low-Voltage Distribution, Enclosed Switches and Circuit Breakers,
Enclosed Controllers, Low-Voltage Switchgear, Switchboards, Panelboards
and Control Centers, Enclosed Bus Assemblies, Low-Voltage Transformers,
Power Distribution Units, Low-Voltage Distribution Components and
Accessories, Lighting, Interior Luminaires, Exterior Luminaires,
Emergency Lighting, Classified Location Lighting, Special Purpose
Lighting, Signal Lighting, Dimming Control, Lighting Accessories,
Lighting Restoration and Repair, Telephone and Intercommunication
Equipment, Sound and Video, Sound and Video Circuits |
