130 lines
2.4 KiB
Markdown
130 lines
2.4 KiB
Markdown
---
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id:
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aliases: []
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tags:
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- occupational/systems/switchgear
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- type/guide
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---
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# Switchgear
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## Info
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### Special Equipment
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#### Company Switches
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> [!info] Also Known As
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> * Theatrical Switchboards
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> * Stage Switchboards
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Company switches are lighting control devices
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unique to performance venues
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like those subject to **NEC Article 520:
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Theaters, Audience Areas of Motion Picture and Television Studios,
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Performance Areas, and Similar Locations**
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![[company-switch.png|500x625]]
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> [!cite] NEC Article 520.2
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> **Stage Switchboard.**
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> A permanently installed switchboard, panelboard, or rack
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> containing dimmers or relays with associated overcurrent protective devices,
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> or overcurrent protective devices alone, used primarily to feed stage equipment.
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## Sequence
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### 1. Preparation
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1. Initial the OneNote
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2. In the drawings, locate:
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* Riser Diagrams
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* House Panels
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### 2. Takeoff
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1. Build Items in Distribution:
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* Panelboards
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* Switchboards
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* Meter centers
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* Generators
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* Transfer switches
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* Generator connection cabinets
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* CT cabinet
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* Power monitor
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2. Takeoff Common Assemblies:
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* XFMRs
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* Disconnect switches
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3. Takeoff Items in Item Database:
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* Wireway (Trough/Gutter)
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4. Takeoff Temp Assemblies:
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* Fire Pump
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* Fire Pump Controller
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When building panelboards/switchboards,
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add terminations according to an example from the schedules.
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**Do not include feeder terminations.**
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Items to Avoid:
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* Tap Boxes
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* Bus Duct
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* Vault Room
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* Anything FPL
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* Grounding
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* Elevator Room
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#### SPD's/TVSS's
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Labor only.
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Specific item is not important, but I use
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`SPLITTERS / SOCKETS / CABINETS`/`METER SOCKETS & CABINETS`/`METERING CURRENT TRANSFORMER`
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(Labor = 1.5hrs)
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for consistency.
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#### Submeters/Power Monitors
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See [[switchgear#SPD's/TVSS's]]
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#### Panelboards
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`DISTRIBUTION`/`DIST PANELS & UNIT LOAD CENTERS`/...
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#### Enclosed Circuit Breakers
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Treat as disconnect switch.
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#### Generators
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Add `DISTRIBUTION FITTINGS`/`GENERATOR SET UP`.
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#### Generator Connection Cabinets
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Use a Distribution Panel of equal amps.
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#### Transfer Switches
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> "300A ATS"
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##### Transfer Switches 1200A+
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Use 1200A MTS/ATS, and add:
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* ==CA.33.14.AMPS==
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* Factor 1 = 3
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* ==Delete 1200A==
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#### Meter Centers
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`SWITCHGEAR & METER CENTERS`/`METER CENTERS`/`... METERING SECTION`
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Adjust Factor 1 for meter stacks, delete zeroed items.
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### 3. Review
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1. Generator
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* Ensure takeoff is in the generator Area and System breakdowns
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* Put location, quantity, and type on OneNote
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