vault backup: 2025-12-10 15:58:11

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2025-12-10 15:58:11 -05:00
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@@ -1,13 +1,13 @@
---
id:
aliases: []
title: Pre-Takeoff Research
tags:
- authorship/original
- destiny/permanent
- occupational
- status/incomplete
- type/guide
- authorship/original
title: Pre-Takeoff Research
---
# Pre-Takeoff Research
@@ -36,12 +36,12 @@ is subject to some debate.
> which they must be able to articulate.
%%
The limitations of Bid's authority are currently being questioned
The limitations of Bid's authority are currently being questioned,
%%
Seek to use the cheapest method,
as determined by Senior Construction Estimator
and Database Administrator,
Seek to use the cheapest method
(as determined by Senior Construction Estimator
and Database Administrator),
as allowed for the situation.
* [[wiring-method-selection]]
@@ -51,54 +51,76 @@ as allowed for the situation.
## General
1. Read about the project specifications and construction type
2. Locate Equipment Schedules
Read about the project specifications and construction type:
* Delivery Method: (Plans & Specs, Design Build, Design Assist, Preliminary Budget)
* Deck thickness
* Wiring methods
* Conductor material
Locate:
* Main Electrical rooms and panel locations
## By System
### Feeders
Read about the project specifications and construction type:
* Deck thickness
* Wiring methods
* Conductor material
* Wire terminations (set-screw acceptable or compression required?)
* Wire terminations (mechanical acceptable or compression required?)
Locate:
* Riser Diagram
* Feeder Schedule (if present)
* Main Electrical rooms and panel locations
1. Locate Unit panels and relevant keynotes
* bus amps
### Subfeeds
1. Read about the project specifications and construction type
* Corridor Ceiling type
2. In the drawings, locate:
* Unit Panel Schedules
* bus amps
* Unit Load Calculations
* Subfeed schedule (if present)
### Units
2. Read about the project specifications and construction type
* partition framing (wood or metal studs)
* stud depth
* wiring methods (NM or MC)
* wiring device plates (decora or standard)
* wiring device specs (are 15A devices allowed or minimum N5-20R)
* equipment (20A Kitchen and bath)
* partition framing
* stud material (wood or metal)
* stud depth
* wiring methods (NM or MC)
* wiring device plates (decora or standard)
* wiring device specs (are 15A devices allowed or minimum N5-20R)
* equipment (20A Kitchen and bath)
### Electrical
1. Locate Equipment Schedules
### Low Voltage
Low Voltage
1. Locate Proposal/Scope of Work. Determine ownership and takeoff responsibility:
* Cabling
* Conduit & Pathways
* Sleeving
2. In the drawings, locate:
* Floor plans where LV scope is shown
* LV Details
Telecom
### Telecom
1. Locate MDF (aka MTR, MPOE) and IDF Rooms
2. Service entrance conduit "Site Low Voltage Ductbank (SLVDB)"
3. Riser throughout building
4. Sleeving for riser
5. Locate Proposal/Scope of Work. Determine ownership and takeoff responsibility:
2. Locate Proposal/Scope of Work. Determine ownership and takeoff responsibility:
* Cabling
* Conduit & Pathways
* Sleeving
6. Locate which plans the LV is taken off on
7. Locate LV Details
8. Read about the project specifications and construction type
3. Locate which plans the LV is taken off on
4. Locate LV Details
5. Read about the project specifications and construction type
## Voltage Drop
@@ -106,21 +128,9 @@ Unless explicitly stated in the plans or specs,
conductors are to be sized according to the relevant schedule,
_without respect for voltage drop_.
### Subfeeds
1. Read about the project specifications and construction type
* Delivery Method: (Plans & Specs, Design Build, Design Assist, Preliminary Budget)
* Corridor Ceiling type
2. In the drawings, locate:
* Unit Panel Schedules
* Unit Load Calculations
* Riser Diagram
* Subfeed schedule (if present)
%%
TODO: Create flow chart for wiring methods.
Some cases to mention:
* Deck thickness (minimum 3x conduit outer diameter)
* Renovations (may not be able to run in slab)
* Renovations (can't route in existing slabs)
%%