---
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