vault backup: 2026-04-23 17:46:59

2026-04-23 17:46:59 -04:00
parent d0fd5667cb
commit ce767142f5
11 changed files with 216 additions and 17 deletions
@@ -95,7 +95,11 @@ The feeder conductor ampacity shall not be less than that of the service conduct

 #### 215.2(B) Feeders over 1000 Volts.

-The ampacity of conductors shall be in accordance with 310.14 and 311.60 as applicable. Where installed, the size of the feeder-circuit grounded conductor shall not be smaller than that required by 250.122, except that 250.122(F) shall not apply where grounded conductors are run in parallel. Feeder conductors over 1000 volts shall be sized in accordance with 215.2(B)(1), (B)(2), or (B)(3).
+The ampacity of conductors
+shall be in accordance with [[nfpa-70_310_conductors_for_general_wiring#310.14 Ampacities for Conductors Rated 0 Volts -- 2000 Volts.|310.14]]
+and [[nfpa-70_311_mv-conductors#311.60 Ampacities of Conductors.|311.60]]
+as applicable.
+Where installed, the size of the feeder-circuit grounded conductor shall not be smaller than that required by 250.122, except that 250.122(F) shall not apply where grounded conductors are run in parallel. Feeder conductors over 1000 volts shall be sized in accordance with 215.2(B)(1), (B)(2), or (B)(3).

 ##### 215.2(B)(1) Feeders Supplying Transformers.

@@ -108,13 +112,16 @@ when only transformers are supplied.

 The ampacity of feeders supplying a combination
 of transformers and utilization equipment
-shall not be less than the sum of the nameplate ratings of the transformers
-and 125 percent of the designed potential load of the utilization equipment
+shall not be less than the sum
+of the nameplate ratings of the transformers
+and 125 percent of the designed potential load
+of the utilization equipment
 that will be operated simultaneously.

 ##### 215.2(B)(3) Supervised Installations.

-For supervised installations, feeder conductor sizing shall be permitted
+For supervised installations,
+feeder conductor sizing shall be permitted
 to be determined by qualified persons under engineering supervision
 in accordance with 310.14(B) or 311.60(B).
 Supervised installations are defined as those portions of a facility
@@ -347,7 +347,11 @@ Note: If no adjustment or correction factors are required, this table shall be p

 ##### 310.14(A)(1) Tables or Engineering Supervision.

-Ampacities for conductors shall be permitted to be determined by tables as provided in 310.15 or under engineering supervision, as provided in 310.14(B).
+Ampacities for conductors
+shall be permitted to be determined by tables
+as provided in 310.15
+or under engineering supervision,
+as provided in 310.14(B).

 > [!info] Informational Note No. 1:
 > Ampacities provided by this section
@@ -336,9 +336,7 @@ Cables shall be permitted to be marked to indicate special characteristics of th
 Type MV cable shall be installed, terminated, and tested by qualified persons.

 > [!info] Informational Note No. 1:
-> Information about accepted industry practices and installation procedures for medium-voltage cable are described in ANSI/NECA/NCSCB 600, Standard for Installing and Maintaining Medium-Voltage Cable, and in IEEE 576, Recommended
-
-Practice for Installation, Termination, and Testing of Insulated Power Cables as Used in Industrial and Commercial Applications.
+> Information about accepted industry practices and installation procedures for medium-voltage cable are described in ANSI/NECA/NCSCB 600, Standard for Installing and Maintaining Medium-Voltage Cable, and in IEEE 576, Recommended Practice for Installation, Termination, and Testing of Insulated Power Cables as Used in Industrial and Commercial Applications.

 > [!info] Informational Note No. 2:
 > Where medium-voltage cable is used for dc circuits, low frequency polarization can create hazardous voltages. When handling the cable these voltages may be present or may develop on dc stressed cable while the circuit is energized.
@@ -373,9 +371,7 @@ Type MV cable shall be permitted for use on power systems rated up to and includ
 Type MV conductors and cables used for direct burial applications shall be shielded, identified for such use, and installed in accordance with 300.50.

 > [!important] Exception No. 1:
-> Nonshielded multiconductor cables rated 2001 volts to 2400 volts shall be permitted if the cable has an overall metallic sheath or armor.
-
-The metallic shield, sheath, or armor shall be connected to a grounding electrode conductor, a grounding busbar, or a grounding electrode.
+> Nonshielded multiconductor cables rated 2001 volts to 2400 volts shall be permitted if the cable has an overall metallic sheath or armor. The metallic shield, sheath, or armor shall be connected to a grounding electrode conductor, a grounding busbar, or a grounding electrode.

 > [!important] Exception No. 2:
 > Airfield lighting cable used in series circuits that are rated up to 5000 volts and are powered by regulators shall be permitted to be nonshielded.
@@ -428,13 +424,19 @@ Nonshielded, ozone-resistant insulated conductors with a maximum phase-to-phase

 ##### 311.60(A)(1) Tables or Engineering Supervision.

-Ampacities for solid dielectric-insulated conductors shall be permitted to be determined by tables or under engineering supervision, as provided in 311.60(B) and (C).
+Ampacities for solid dielectric-insulated conductors
+shall be permitted to be determined by tables
+or under engineering supervision,
+as provided in 311.60(B) and (C).

-The ampacity of Type MV cable installed in cable tray shall be determined in accordance with 392.80(B).
+The ampacity of Type MV cable installed in cable tray
+shall be determined in accordance with
+[[nfpa-70_392_cable-tray#392.80(B) Ampacity of Type MV and Type MC Cables (2001 Volts or Over) in Cable Trays.|392.80(B)]].

 ##### 311.60(A)(2) Selection of Ampacity.

-Where more than one calculated or tabulated ampacity could apply for a given circuit length, the lowest value shall be used.
+Where more than one calculated or tabulated ampacity could apply for a given circuit length,
+the lowest value shall be used.

 > [!important] Exception:
 > Where different ampacities apply to portions of a circuit, the higher ampacity shall be permitted to be used if the total portion(s) of the circuit with the lower ampacity does not exceed the lesser of 3.0 m (10 ft) or 10 percent of the total circuit.
@@ -446,7 +448,7 @@ Where more than one calculated or tabulated ampacity could apply for a given cir

 Under engineering supervision, conductor ampacities shall be permitted to be calculated by using the following general equation:

-### Equation 311.60(B)
+##### Equation 311.60(B)

 %% TODO %%

@@ -477,7 +479,8 @@ Ampacities for ambient temperatures other than those specified in the ampacity t
 > For ampacities calculated in accordance with 311.60(A), reference IEEE 835, Standard Power Cable Ampacity Tables, and the references therein for availability of all factors and constants.

 > [!info] Informational Note No. 2:
-> Ampacities provided by this section do not take voltage drop into consideration. See 210.19(A), Informational Note No. 4, for branch circuits and 215.2(A), Informational Note No. 2, for feeders.
+> Ampacities provided by this section do not take voltage drop into consideration.
+> See 210.19(A), Informational Note No. 4, for branch circuits and 215.2(A), Informational Note No. 2, for feeders.

 ##### Table 311.60(C)(67) Ampacities of Insulated Single Copper Conductor Cables Triplexed in Air

@@ -6,3 +6,9 @@ tags:
  - type/encyclopedia-entry
 ---
 # Obsidian
+
+[obsidian.md](https://obsidian.md)
+
+## Obsidian Flavored Markdown
+
+[Obsidian-flavored markdown](https://help.obsidian.md/)
@@ -0,0 +1,23 @@
+---
+aliases:
+  - ops
+title: PDI Operations
+tags:
+  - occupational
+---
+# PDI Operations
+
+## Roles
+
+1. Chairman (1)
+2. Chief Operating Officer (1)
+3. Executive Vice President
+4. Senior Vice President
+5. Vice President of Construction Operations
+6. Project Executive
+7. Project Manager
+8. Senior Project Superintendent
+9. Superintendent
+10. Foreman
+
+### Project Manager
@@ -0,0 +1,10 @@
+---
+id: 2026-04-23
+title: 2026-04-23
+tags: []
+weekly: "[[2026w17]]"
+monthly: "[[2026-04]]"
+quarterly: "[[2026q2]]"
+previous: "[[2026-04-22]]"
+---
+# 2026-04-23
@@ -0,0 +1,100 @@
+---
+id: 2026-04-23T10:01:40-0400
+title: 2026-04-23 10:01:40
+tags: []
+daily: "[[2026-04-23]]"
+---
+# 2026-04-23 10:01:40
+
+## Virginia Live! Director Review
+
+[[estimating-director-review]] for
+[[virginia-live-casino-and-hotel]]:
+
+## Switchgear
+
+Note extensive emergency power provisions
+verify control wiring for generator to ATS
+#### Lighting HR's
+
+count of circuits, control zones in takeoff notes
+lot length
+
+#### Temporary Power
+
+Used two `TEMPORARY POWER - HR`
+
+Narrative
+extended light layouts
+
+#### Generator
+
+3000 gallons * 6 dollars per gallon = $18000
+
+#### Labor
+
+ASL Column 2 with adjustments
+
+Site Labor +50%
+#### Telecom Backbone
+
+#### Medium Voltage
+
+Medium voltage cabling downstream of
+
+#### Underground Runs
+
+need rigid 90's for PVC runs 200ft and above
+> horizontal? vertical? both?
+
+#### Fixture Labor
+
+Tape light: 1 hour per 6 feet
+
+snap together linear: 1 hour per 5 feet
+
+##### Center Bar Fixture 
+
+assuming each crystal is an individual fixture
+over 5000 crystals
+80 circuits
+
+A-GAM-442
+##### Dragon Fixture
+
+1000 hours
+
+#### Lighting Control
+
+"Networked" to mean either
+"Centralized"
+or "Standalone" with Network Bridges.
+
+> Wattstopper Network Bridges are limited to 64 devices (zones)
+
+#### DAS
+
+Sold Design Build
+#### Historicals
+
+Want to know
+casino cost per square foot
+
+#### Composite Cleanup
+
+#### Multi-Shift Impact
+
+20% of hours
+add $5 per hour
+
+#### Indirect Labor
+
+16% burden
+
+#### Facade
+
+Extra cost for facade lighting install
+250,000
+
+"Go to 150k"
+
@@ -0,0 +1,14 @@
+---
+id: 2026-04-23T14:36:51-0400
+title: 2026-04-23 14:36:51
+tags: []
+daily: "[[2026-04-23]]"
+---
+# 2026-04-23 14:36:51
+
+Need to refresh myself on
+[[nfpa-70_311_mv-conductors]]
+
+Note that 2023 moved MV content to
+Article 314 Part 3
+and Article 315
@@ -0,0 +1,19 @@
+---
+id: 2026-04-23T16:24:49-0400
+title: 2026-04-23 16:24:49
+tags:
+  - occupational
+daily: "[[2026-04-23]]"
+---
+# 2026-04-23 16:24:49
+
+I asked a former [[pdi-operations#Project Manager|PM]]
+what purpose [[conest|ConEst]] serves
+if [[pdi-operations|Ops]] is doing the same takeoff.
+He said I was mistaken,
+that Ops modifies the ConEst estimate,
+they don't redo it.
+
+When Ops receives the [[pdi-vdc|VDC]] Feeder Verification Sheet
+(which is based on our own [[pdi-project-start-notification#Feeder Verification]])
+they change our takeoff to match.
@@ -0,0 +1,13 @@
+---
+id: 2026-04-23T17:41:32-0400
+title: 2026-04-23 17:41:32
+tags: []
+daily: "[[2026-04-23]]"
+---
+# 2026-04-23 17:41:32
+
+## Professional Certifications
+
+* Project Management Professional (PMP)
+* Certified Quality Engineer (CQE)
+* Lean Six Sigma Black Belt (LSBB)