zmVault/switchgear.md

id, aliases, tags

id	aliases	tags
		occupational/systems/switchgear

Switchgear

Sequence

1. Estimate preparation

1. Initial the OneNote
2. In the drawings, locate:
   • Riser Diagrams
   • House Panels
3. Copy over default Temporary Assemblies from sandbox job

2. Takeoff

1. Build Items in Distribution:

   • Panelboards
   • Switchboards
   • Meter centers
   • Generators
   • Transfer switches
   • Generator connection cabinets

2. Takeoff Common Assemblies:

   • XFMRs
   • Disconnect switches

3. Takeoff Items in Item Database:

   • Wireway (Trough/Gutter)

4. Takeoff Temp Assemblies:

   • CT Cabinet
   • Meter
   • Fire Pump
   • Fire Pump Controller

When building panelboards/switchboards, add terminations according to an example from the schedules. Do not include feeder terminations.

Items to Avoid:

• Tap Boxes
• Bus Duct
• Vault Room
• Anything FPL
• Grounding
• Elevator Room

SPD's/TVSS's

Labor only: ~1.5hrs

Panelboards

DISTRIBUTION/DIST PANELS & UNIT LOAD CENTERS/...

Enclosed Circuit Breakers

Treat as disconnect switch.

Generators

Add GENERATOR SET UP

Generator Connection Cabinets

Use a Distribution Panel of equal amps.

Transfer Switches

"300A ATS"

Transfer Switches 1200A+

Use 1200A MTS/ATS, and add:

• ==CA.33.14.AMPS==
• Factor 1 = 3
• ==Delete 1200A==

Meter Centers

SWITCHGEAR & METER CENTERS/METER CENTERS/... METERING SECTION

Adjust Factor 1 for meter stacks, delete zeroed items.

3. Extension (Review and Checking)

1. Generator
   • Ensure takeoff is in the generator Area and System breakdowns
   • Put location, quantity, and type on OneNote