vault backup: 2026-03-26 16:29:44
This commit is contained in:
@@ -0,0 +1,27 @@
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---
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id:
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aliases: []
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title: Lighting Controls Research
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tags:
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- authorship/original
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- destiny/permanent
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- occupational
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- status/incomplete
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- type/guide
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---
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# Lighting Controls Research
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Assembly selection for lighting controls is _never_ straightforward,
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even where it ought to be.
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There _must_ be conversation and consensus
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between the [[pdi-estimating#Construction Estimating (ConEst)|ConEst]]
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and [[pdi-estimating#Bid Estimating|Bid]] senior estimators
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before takeoff can begin.
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This note is intended to assist in collecting all information
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likely to be relevant to said discussion,
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as well as likely outcomes given certain details ([[heuristics]]),
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`COMMON ASSEMBLIES`/`SWITCHES`/...
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* .../`OCCUPANCY SENSORS` --- rough-in, cable, and devices
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* .../`OCCUPANCY SENSORS - FURNISHED BY OTHERS` --- rough-in, cable, and device _labor_
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* .../`LOW VOLTAGE SWITCHES & OCC SENSORS - ROUGH IN` --- rough-in only
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@@ -13,7 +13,8 @@ dg-publish: true
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# Lighting Controls Takeoff
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> [!info]
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> See [[lighting-controls]] for more on lighting controls systems.
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> See [[lighting-controls]] for more on lighting controls systems
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> and [[lighting-controls-research]] for PDI considerations.
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> [!info] "Local Control" as a PDI proposal qualification
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> The term "local control only" is sometimes used to indicate
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+34
-11
@@ -14,14 +14,14 @@ dg-publish: false
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---
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# Article 215 Feeders
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## 215.1 Scope.
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### 215.1 Scope.
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This article covers the installation requirements, overcurrent protection requirements, minimum size, and ampacity of conductors for feeders.
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> [!important] Exception:
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> Feeders for electrolytic cells as covered in 668.3(C)(1) and (C)(4).
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#### 215.2 Minimum Rating and Size.
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### 215.2 Minimum Rating and Size.
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#### 215.2(A) Feeders Not More Than 1000 Volts.
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@@ -29,7 +29,7 @@ This article covers the installation requirements, overcurrent protection requir
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Feeder conductors shall have an ampacity
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not less than the larger of 215.2(A)(1)(a) or (A)(1)(b)
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and shall comply with 110.14(C).
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and shall comply with [[nfpa-70_110_requirements#110.14(C) Temperature Limitations.|110.14(C)]].
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* (a) Where a feeder supplies continuous loads
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or any combination of continuous and noncontinuous loads,
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@@ -37,28 +37,50 @@ and shall comply with 110.14(C).
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not less than the noncontinuous load plus 125 percent of the continuous load.
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> [!important] Exception No. 1:
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> If the assembly, including the overcurrent devices protecting the feeder(s), is listed for operation at 100 percent of its rating, the ampacity of the feeder conductors shall be permitted to be not less than the sum of the continuous load plus the noncontinuous load.
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> If the assembly, including the overcurrent devices protecting the feeder(s),
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> is listed for operation at 100 percent of its rating,
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> the ampacity of the feeder conductors
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> shall be permitted to be not less
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> than the sum of the continuous load plus the noncontinuous load.
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> [!important] Exception No. 2:
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> Where a portion of a feeder is connected at both its supply and load ends to separately installed pressure connections as covered in 110.14(C)(2), it shall be permitted to have an ampacity not less than the sum of the continuous load plus the noncontinuous load. No portion of a feeder installed under this exception shall extend into an enclosure containing either the feeder supply or the feeder load terminations, as covered in 110.14(C)(1).
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> Where a portion of a feeder is connected
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> at both its supply and load ends to separately installed pressure connections
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> as covered in [[nfpa-70_110_requirements#110.14(C)(2) Separate Connector Provisions.|110.14(C)(2)]],
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> it shall be permitted to have an ampacity not less than the sum of the continuous load plus the noncontinuous load.
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> No portion of a feeder installed under this exception
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> shall extend into an enclosure containing either the feeder supply
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> or the feeder load terminations,
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> as covered in [[nfpa-70_110_requirements#110.14(C)(1) Equipment Provisions.|110.14(C)(1)]].
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> [!important] Exception No. 3:
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> Grounded conductors that are not connected to an overcurrent device shall be permitted to be sized at 100 percent of the continuous and noncontinuous load.
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> Grounded conductors that are not connected to an overcurrent device
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> shall be permitted to be sized at 100 percent of the continuous and noncontinuous load.
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* (b) The minimum feeder conductor size
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shall have an ampacity not less than the maximum load to be served
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after the application of any adjustment or correction factors
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in accordance with
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[[nfpa-70_310_conductors_for_general_wiring#310.14 Ampacities for Conductors Rated 0 Volts -- 2000 Volts.|310.14]].
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in accordance with [[nfpa-70_310_conductors_for_general_wiring#310.14 Ampacities for Conductors Rated 0 Volts -- 2000 Volts.|310.14]].
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%%
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Is "maximum load to be served" the same as "demand load"
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as used by panel schedules?
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%%
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> [!info] Informational Note No. 1:
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> See Examples D1 through D11 in Informative Annex D.
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> [!info] Informational Note No. 2:
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> Conductors for feeders, as defined in Article 100, sized to prevent a voltage drop exceeding 3 percent at the farthest outlet of power, heating, and lighting loads, or combinations of such loads, and where the maximum total voltage drop on both feeders and branch circuits to the farthest outlet does not exceed 5 percent, will provide reasonable efficiency of operation.
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> Conductors for feeders, as defined in Article 100,
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> sized to prevent a voltage drop exceeding 3 percent
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> at the farthest outlet of power, heating, and lighting loads, or combinations of such loads,
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> and where the maximum total voltage drop on both feeders and branch circuits
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> to the farthest outlet does not exceed 5 percent,
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> will provide reasonable efficiency of operation.
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> [!info] Informational Note No. 3:
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> See 210.19(A), Informational Note No. 4, for voltage drop for branch circuits.
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> See [[nfpa-70_210_branch-circuits#210.19(A) Branch Circuits Not More Than 600 Volts.|210.19(A)]], Informational Note No. 4,
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> for voltage drop for branch circuits.
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##### 215.2(A)(2) Grounded Conductor.
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@@ -142,7 +164,8 @@ shall be provided prior to the installation of the feeders.
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Such a diagram shall show the area in square feet
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of the building or other structure supplied by each feeder,
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the total calculated load before applying demand factors,
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the demand factors used, the calculated load after applying demand factors,
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the demand factors used,
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the calculated load after applying demand factors,
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and the size and type of conductors to be used.
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### 215.6 Feeder Equipment Grounding Conductor.
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@@ -21,85 +21,20 @@ yearly: "[[2026]]"
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## Pre-Takeoff Email Template Meeting
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|
||||
### Scratch
|
||||
|
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Meeting lead by Josh Ford
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||||
to discuss acceptable use of [[conest-pre-takeoff-email-template]]
|
||||
to discuss acceptable use of [[conest-pre-takeoff-email-template]].
|
||||
|
||||
***
|
||||
### Topics
|
||||
|
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#### Purpose
|
||||
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Reiterated intent to replace OneNote,
|
||||
however stated that OneNote might (even should)
|
||||
be used to track
|
||||
|
||||
Template should be pasted into the email body,
|
||||
not sent as attachment.
|
||||
To be revisited in audit meeting [[2026-W13|next week]].
|
||||
|
||||
Intent is too provide information to the bid team
|
||||
potentially to be qualified in future bids.
|
||||
|
||||
***
|
||||
|
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> [!example] [[sunset-amphitheater]]
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> Cummins generator was spec'd, quoted,
|
||||
> but not used in estimate because it was not cheapest.
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||||
|
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Josh, Corwin, Procurement
|
||||
to provide a list of "typical PDI manufactures"
|
||||
for Wire, Generator, Switchgear
|
||||
rather than include entire list from specs.
|
||||
|
||||
> Wire:
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||||
> * Encore
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||||
> * Okonite
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||||
> * Southwire
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|
||||
***
|
||||
|
||||
[[conest-pre-takeoff-email-template#Project Drawing/Detail Callouts]]
|
||||
|
||||
High-cost impact items
|
||||
not mentioned in proposal
|
||||
not shown in Bid Sheet.
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||||
|
||||
* dimming in units
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||||
* balcony pedestals
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||||
|
||||
***
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||||
|
||||
[[conest-pre-takeoff-email-template#Lighting Control]]
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||||
|
||||
Intent is to provoke conversation ahead of takeoff
|
||||
to prevent rework
|
||||
|
||||
not necessary to list all areas
|
||||
if not applicable to project
|
||||
(code minimum)
|
||||
|
||||
***
|
||||
|
||||
[[conest-pre-takeoff-email-template#Tasks/Quotes Needed for WBS]]
|
||||
|
||||
> BPM has both
|
||||
> tasks within bid round and
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||||
> tasks outside of bid round.
|
||||
|
||||
to be revisited in dedicated meeting
|
||||
|
||||
***
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||||
|
||||
cc: Josh Ford, Corwin Fluitt, Jessalyn
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||||
|
||||
***
|
||||
|
||||
Response from Bid is necessary within three days.
|
||||
|
||||
"See proposal" is unacceptable response.
|
||||
Escalate issue.
|
||||
|
||||
***
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||||
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> 1. ConEst deviates from specs based on direction from Bid.
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> 2. Awarded contract does not include respect for the direction
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||||
> 3. Ops, not aware of direction, believes ConEst takeoff was in error.
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@@ -109,22 +44,6 @@ an area the OneNote is poor in.
|
||||
|
||||
***
|
||||
|
||||
Only when we're touching a job for the first time,
|
||||
not revisions.
|
||||
|
||||
***
|
||||
|
||||
Other media were considered,
|
||||
but email text was determined to be optimal
|
||||
to prevent lost attachments and broken links.
|
||||
|
||||
***
|
||||
|
||||
Consistency in formatting is prioritized
|
||||
ConEst resources to be allocated by availability, not region.
|
||||
|
||||
***
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||||
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||||
Direction from Aaron to improve turnaround
|
||||
while maintaining standards
|
||||
including presentability of information;
|
||||
@@ -158,8 +77,79 @@ but ConEst's role is to prevent PDI _from making bad deals_
|
||||
> Similar could be said by Ops about ConEst.
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||||
> ~~They have more time than us~~
|
||||
|
||||
#### Use
|
||||
|
||||
Only when we're touching a job for the first time,
|
||||
not revisions.
|
||||
|
||||
Template should be pasted into the email body,
|
||||
not sent as attachment.
|
||||
To be revisited in audit meeting [[2026-W13|next week]].
|
||||
|
||||
cc: Josh Ford, Corwin Fluitt, Jessalyn
|
||||
|
||||
Other media were considered,
|
||||
but email text was determined to be optimal
|
||||
to prevent lost attachments and broken links.
|
||||
|
||||
Consistency in formatting is prioritized
|
||||
ConEst resources to be allocated by availability, not region.
|
||||
|
||||
Response from Bid is necessary within three days.
|
||||
|
||||
"See proposal" is unacceptable response.
|
||||
Escalate issue.
|
||||
|
||||
#### Acceptable Manufacturers
|
||||
|
||||
> [!example] [[sunset-amphitheater]]
|
||||
> Cummins generator was spec'd, quoted,
|
||||
> but not used in estimate because it was not cheapest.
|
||||
|
||||
Josh, Corwin, Procurement
|
||||
to provide a list of "typical PDI manufactures"
|
||||
for Wire, Generator, Switchgear
|
||||
rather than include entire list from specs.
|
||||
|
||||
> Wire:
|
||||
> * Encore
|
||||
> * Okonite
|
||||
> * Southwire
|
||||
|
||||
#### Project Drawing/Detail Callouts
|
||||
|
||||
[[conest-pre-takeoff-email-template#Project Drawing/Detail Callouts]]
|
||||
|
||||
High-cost impact items
|
||||
not mentioned in proposal
|
||||
not shown in Bid Sheet.
|
||||
|
||||
* dimming in units
|
||||
* balcony pedestals
|
||||
|
||||
#### Lighting Control
|
||||
|
||||
[[conest-pre-takeoff-email-template#Lighting Control]]
|
||||
|
||||
Intent is to provoke conversation ahead of takeoff
|
||||
to prevent rework
|
||||
|
||||
not necessary to list all areas
|
||||
if not applicable to project
|
||||
(code minimum)
|
||||
|
||||
#### Tasks/Quotes Needed for WBS
|
||||
|
||||
[[conest-pre-takeoff-email-template#Tasks/Quotes Needed for WBS]]
|
||||
|
||||
> BPM has both
|
||||
> tasks within bid round and
|
||||
> tasks outside of bid round.
|
||||
|
||||
To be revisited in [[[[2026-03-25_13-17-35#BPM Tasks Meeting|dedicated meeting]]
|
||||
|
||||
### Meetings to Follow
|
||||
|
||||
* ConEst Audit Scorecard --- [[2026-03-25]]
|
||||
* BPM --- TBD
|
||||
* BPM Tasks Meeting --- TBD
|
||||
* ConEst Town Hall --- TBD
|
||||
|
||||
@@ -18,6 +18,8 @@ yearly: "[[2026]]"
|
||||
---
|
||||
# 2026-03-20 13:44:59
|
||||
|
||||
## Unit Smoke Detectors
|
||||
|
||||
Relevant to [[fire-alarm-takeoff]],
|
||||
while reviewing my takeoff for [[1990-k-street]]
|
||||
Joel had to fix the assemblies I used for unit smoke detectors.
|
||||
|
||||
@@ -0,0 +1,77 @@
|
||||
---
|
||||
id: 2026-03-26T08:49:49-04:00
|
||||
aliases: []
|
||||
title: 2026-03-26 08:49:49
|
||||
tags:
|
||||
- authorship/original
|
||||
- destiny/permanent
|
||||
- status/draft
|
||||
- type/periodic/timestamped
|
||||
daily: "[[2026-03-26]]"
|
||||
date-created: 2026-03-26T08:49:49-04:00
|
||||
dg-publish: true
|
||||
monthly: "[[2026-03]]"
|
||||
quarterly: "[[2026-Q1]]"
|
||||
weekly: "[[2026-W13]]"
|
||||
yearly: "[[2026]]"
|
||||
---
|
||||
# 2026-03-26 08:49:49
|
||||
|
||||
## 1990 K Street Senior Review
|
||||
|
||||
Follow-up to [[2026-03-20_13-44-59#2026-03-20 13:44:59]].
|
||||
|
||||
Comments by Joel Jansen
|
||||
Relevant to my takeoff for [[1990-k-street]]:
|
||||
|
||||
### Lighting Control Assemblies
|
||||
|
||||
Relevant to [[lighting-controls-takeoff]]:
|
||||
|
||||
Lighting control assembly selection for the project was contentious
|
||||
because PDS excluded the system due to lack of information,
|
||||
but the drawings painted as exact a picture as one could ask for prior to construction.
|
||||
|
||||
> Design shows digital control, dimming controlled by occ sensors in stairwells, corridors. \
|
||||
> ---E021 AUTOMATED LIGHTING CONTROL - SEQUENCES OF OPERATIONS
|
||||
>
|
||||
> Proposal excludes digital lighting control due to lack of information. \
|
||||
> ---Proposal 2026-01-22, Pricing Alternates
|
||||
>
|
||||
> Spec 260923 - LIGHTING CONTROL DEVICES \
|
||||
> Spec 260936 - MODULAR DIMMING CONTROLS
|
||||
|
||||
In conversation with Joel,
|
||||
we agreed that I would use the "FBO" assemblies
|
||||
with the assumption that an LV system would be budgeted.
|
||||
|
||||
> [!quote] 1990 K Street ConEst OneNote, "Lighting Control"
|
||||
> Takeoff to use FBO assemblies (rough-in, cable, and device labor). \
|
||||
> ---Joel Jansen 2026-02-11 11:05
|
||||
|
||||
After direction I'm not clear on,
|
||||
Joel switched these to the device labor and material assemblies.
|
||||
|
||||
[[lighting-controls-research]]
|
||||
|
||||
### Feeder Schedule 5"C
|
||||
|
||||
Relevant to [[feeders-takeoff]]:
|
||||
|
||||
Feeder schedule calls for 5 inch conduit for certain tags
|
||||
which PDI's schedule uses 4 inch for.
|
||||
I did not respect this in the takeoff,
|
||||
Joel intends to substitute.
|
||||
|
||||
***
|
||||
|
||||
**\[2026-03-26 09:36\]**
|
||||
After conversation with Christian,
|
||||
Joel substituted all EMT feeders for MC cable.
|
||||
Christian stated that [[pdi-estimating#Bid Estimating|they]]
|
||||
would qualify the substitution in their next proposal
|
||||
and raised that 5 inch EMT does not exist in our database anyway[^1].
|
||||
|
||||
[^1]: It doesn't exist at all.
|
||||
See [[nfpa-70_358_emt#358.20(B) Maximum.|NEC 358.20(B)]].
|
||||
|
||||
@@ -0,0 +1,105 @@
|
||||
---
|
||||
id: 2026-03-26T14:10:46-04:00
|
||||
aliases: []
|
||||
title: 2026-03-26 14:10:46
|
||||
tags:
|
||||
- authorship/original
|
||||
- destiny/permanent
|
||||
- status/draft
|
||||
- type/periodic/timestamped
|
||||
- occupational
|
||||
dg-publish: true
|
||||
date-created: 2026-03-26T14:10:46-04:00
|
||||
daily: "[[2026-03-26]]"
|
||||
weekly: "[[2026-W13]]"
|
||||
monthly: "[[2026-03]]"
|
||||
quarterly: "[[2026-Q1]]"
|
||||
yearly: "[[2026]]"
|
||||
---
|
||||
# 2026-03-26 14:10:46
|
||||
|
||||
## 1990 K Street ConEst Manager Review
|
||||
|
||||
ConEst Manager Review for [[1990-k-street]]
|
||||
lead by Josh Ford and Joel Jansen
|
||||
|
||||
### Purpose of ConEst Manager Review
|
||||
|
||||
Josh explains purpose of this review to PE
|
||||
|
||||
Jobs below 12% margin
|
||||
are reviewed further with Corwin Fluitt
|
||||
who is able and authorized
|
||||
to "make judgement calls" on pricing concerns
|
||||
in order to get GP to an acceptable number.
|
||||
|
||||
PDI MC Cable pricing is market rate,
|
||||
we have vendor specific pricing with Southwire
|
||||
up to 20% lower
|
||||
|
||||
### Switchgear
|
||||
|
||||
Josh will usually not review switchgear takeoff
|
||||
unless there is significant difference from labor plan
|
||||
|
||||
### Primaries & Secondaries
|
||||
|
||||
Where PEPCO is the power utility:
|
||||
typically own nothing for primaries
|
||||
conduit only for secondaries.
|
||||
|
||||
Confirmed for 1990.
|
||||
|
||||
### VE's To Be Incorporated Later
|
||||
|
||||
* Wire feeders ILO busduct
|
||||
|
||||
### Feeders
|
||||
|
||||
Fire pump feeds are not tagged as 2hr rated
|
||||
takeoff assumed 2hr rated MC cable ("Vitalink")
|
||||
to be confirmed with Christian.
|
||||
|
||||
### EV Chargers
|
||||
|
||||
EV Chargers were erroneously placed in `System` "EL - Electrical".
|
||||
|
||||
### Lighting Controls
|
||||
|
||||
Josh was looking for for energy code
|
||||
not present in pre-takeoff email or OneNote.
|
||||
|
||||
ASHRAE 2016
|
||||
|
||||
***
|
||||
|
||||
Follow-up to [[2026-03-26_08-49-49#Lighting Control Assemblies]].
|
||||
|
||||
Josh confirmed the switch to complete-furnish assemblies was appropriate.
|
||||
|
||||
### Labor Plan
|
||||
|
||||
Garage Slab/Deck is $1.30/sf
|
||||
where $1.00/sf was expected.
|
||||
Josh attributes this mainly to the EV chargers and CO system.
|
||||
|
||||
Innerduct: Use 3hrs per Unit.
|
||||
|
||||
### Scratch
|
||||
|
||||
Composite Cleanup is based on 8hrs per week for every 10 crew
|
||||
|
||||
Coordination Study: Expect $15k per $10m of switchgear package
|
||||
|
||||
#### Temporary Lighting
|
||||
|
||||
Temp lighting budget does not include heating
|
||||
or lighting in units ("task lighting")
|
||||
|
||||
#### Rigging
|
||||
|
||||
3rd party rigging quotes are only for special cases.
|
||||
It is expected that the GC's crane
|
||||
can be used to set switchboards and generators.
|
||||
|
||||
On 1990, the GC (Clarke) RFP provides 16 hours crane time.
|
||||
Reference in New Issue
Block a user