1. Engineering Technology Division
Power Plant Construction and QA/QC
Sections 4.6 & 4.7 – Busway and Cable Applications

2. Overview Bus bars – Cu or Al – bolted connections
Sections 4.6 & 4.7 – Busway and Cable Applications
Overview
Bus bars – Cu or Al – bolted connections
Bus Connections – losses
Bus Size dependent on voltage
Bus Placement – distance between phases – arcing
Bus Work – typically enclosed and grounded
Cable – Cu or Al
Cable insulation – voltage dependent
Cable Terminations – bolted lug – pressure, mechanical or solder
Cable Trays – Routing
EMI – Power vs. Instrumentation

3. Buswork and Duct Sections 4.6 & 4.7 – Busway and Cable Applications
Losses – Heat
Number of bars – Voltage
Distance - Arcing

4. Buswork Losses – Thermal Imaging
Sections 4.6 & 4.7 – Busway and Cable Applications
Buswork Losses – Thermal Imaging

5. Electrical Cable - Construction
Sections 4.6 & 4.7 – Busway and Cable Applications
Electrical Cable - Construction
Twisted Wire
Solid Wire
Inconel Jacket
Shielded Cable

6. Electrical Cable - Insulation
Sections 4.6 & 4.7 – Busway and Cable Applications
Electrical Cable - Insulation
Asbestos
Thermoplastic/Setting Compounds
Paper-Laminated
Varnished Cloth
Mineral Insulation
Thermosetting Compounds
Asbestos
Varnished Paper & Cloth
Mineral Insulated

7. Electrical Cable Trays
Sections 4.6 & 4.7 – Busway and Cable Applications
Electrical Cable Trays
Power vs. Instrumentation

8. Electrical Cable Conduit
Sections 4.6 & 4.7 – Busway and Cable Applications
Electrical Cable Conduit
Steel Pipe
Flexible Steel Strip
PVC Tubing

9. Sections 4.6 & 4.7 – Busway and Cable Applications
Questions?