B08_Attachment_5_3-_HECO_General_Expectations_for_Design_Review_Stages.pdf

General Expectations for Early Engineering Work (Excerpts from Hawaiian Electric (MECO/HECO) EPC Specifications)

Preliminary / 30% Design Package- Schematic Design

Overhead Power Line

The Preliminary Design Package shall demonstrate and confirm the Contractor’s understanding of the intent of the Project and Company’s design criteria. Typically the Preliminary Design Package shall include, at a minimum:

a. Plan layout of the line showing general alignment from switchyard to interconnection with existing grid, including:

1) preliminary structure/pole spotting

2) identification of pole heights and span lengths

3) locations of line equipment (e.g., switches, transformers, reclosers, etc.)

b. Conductor selection, including supporting calculations

c. Other calculations for, including at a minimum:

1) clearance verification to adjacent buildings, structures and other electrical lines

2) verification that lines meet clearance requirements within the established right-of-way under blow-out conditions

3) Sag and tension analysis including offset clipping analysis

Provide a list of long lead materials. Include the estimated lead time (in weeks) and the date when the material shall be ordered to accommodate manufacture/fabrication, shipping and delivery for installation in accordance with Contractor’s Project Schedule.

Underground Infrastructure Design

Contractor’s understanding of the intent of the Project and Company’s design criteria. Typically the Preliminary Design Package shall include, at a minimum:

a. Plan layout of the line showing general alignment from switchyard to interconnection with existing grid, including:

1) preliminary manhole/handhole/vault locations

2) locations of equipment (e.g., switches, transformers, reclosers, etc.)

b. Typical duct bank cross section(s), including conduit sizes Provide a list of long lead materials. Include the estimated lead time (in weeks) and the date when the material shall be ordered to accommodate manufacture/fabrication, shipping and delivery for installation in accordance with Contractor’s Project Schedule.

Underground Electrical Design

Contractor’s understanding of the intent of the Project and Company’s design criteria. Typically the Preliminary Design Package shall include, at a minimum:

a. Single Line Diagram

b. Cable selection, including supporting calculations (e.g., ampacity)

Provide a list of long lead materials. Include the estimated lead time (in weeks) and the date when the material shall be ordered to accommodate manufacture/fabrication, shipping and delivery for installation in accordance with Contractor’s Project Schedule.

Substation Design

The Preliminary Design Package shall demonstrate and confirm the Contractor’s understanding of the intent of the Project and Company’s design criteria. Typically the Preliminary Design Package shall include, at a minimum:

a. Site General Arrangement drawing(s)

b. Grading, Drainage and Access drawing(s)

c. Physical Elevation drawing(s)

d. Physical Section drawing(s)

e. Foundation Layout drawing(s)

f. Conduit Plan drawing(s)

g. Conduit Schedule

h. Single Line Diagram(s)

i. Single-Line Diagram notes

j. Relay list

k. Station Service AC Single-Line Diagram

l. Grounding Study

m. Grounding Layout drawing(s)

n. Any other studies/calculations used to size equipment

o. Metering Layout drawing(s)

p. Static Protection (lightning) Plan drawing(s)

q. Static Protection calculations

r. Site Fiber Communication Layout drawing(s)

s. Control Equipment Enclosure Plan drawing(s)

t. Control Equipment Enclosure Elevation drawing(s)

u. If fiber into the switching station is required:

1) Splice Can details for Contractor-supplied equipment

2) Conduit Plan / Fiber Routing for Contractor-supplied equipment

v. If microwave into the switching station is required:

1) Microwave tower design drawings and calculations

2) Microwave waveguide bridge design drawings and calculations

Provide a list of long lead materials such as breakers, disconnect switches, potential transformers, steel, control equipment enclosure, RTU, protection and control panels and non-standard items. Include the estimated lead time (in weeks) and the date when the material shall be ordered to accommodate manufacture/fabrication, shipping and delivery for installation in accordance with Contractor’s Project Schedule.

Detailed / 60% Design Package- Design Development

Overhead Power Line

The Detailed Design Package shall be performed after the Company has completed its review of the Preliminary Design Package. Typically the Detailed Design Package shall include, at a minimum:

a. All items updated from the Preliminary/30% Design Package with Company comments incorporated

b. Location Map

c. Plan and profile drawing(s), including:

1) optical ground wire splice points, if applicable

2) Company-provided switch numbers for line switches

d. Material list

e. Structure drawing(s), including pole framing detail(s);

reference applicable Company Standards

f. Loading and design drawing(s), for procurement for steel poles

g. Preliminary pier dimensions based on steel pole loading and design, and geotechnical recommendations

h. Calculations, including:

1) sag-tension

2) pole/structure loading

i. Vibration damper recommendations

j. Geotechnical Report

Underground Infrastructure Design

The Detailed Design Package shall be performed after the Company has completed its review of the Preliminary Design Package. Typically the Detailed Design Package shall include, at a minimum:

a. All items updated from the Preliminary/30% Design Package with Company comments incorporated

b. Location Map

c. Plan and profile drawing(s), with survey ties showing utility crossings and other conflicts

d. Manhole, handhole, vault development detail(s), with conduit entrances

e. Duct bank cross section(s) including any rolls or changes in typical arrangement and dimensions

f. Pole riser detail(s) for terminations

Underground Electrical Design

The Detailed Design Package shall be performed after the Company has completed its review of the Preliminary Design Package. Typically the Detailed Design Package shall include, at a minimum:

a. All items updated from the Preliminary Design Package with Company comments incorporated

b. Plan drawing(s), showing:

1) manholes, handholes and vaults

2) cable and conduit routing and sizes

3) cable joint locations

4) location of padmount equipment (and/or applicable pole-mounted equipment)

5) customer services

c. Material list

d. Cable racking (and manhole/handhole/vault butterfly diagrams)

e. Cable sheath grounding scheme

f. Equipment bonding and grounding

g. Detailed reference drawings for connected equipment

h. Calculations:

1) Pulling calculations, including sidewall pressure

2) Ground wire sizing

Substation Design

The Detailed Design Package shall be performed after the Company has completed its review of the Preliminary Design Package. Typically the Detailed Design Package shall include, at a minimum:

a. All items updated from the Preliminary Design Package with Company comments incorporated

b. Physical Detail drawing(s)

c. Foundation Detail drawing(s)

d. Conduit Detail drawing(s)

e. Fencing Details drawing(s)

f. Grounding Detail drawing(s)

g. Steel Structure Loading and Design drawings

h. Structural Calculations

i. Dynamic Bus Calculations (per IEEE-605-2008)

j. Control Equipment Enclosure Section drawing(s)

k. Control Equipment Enclosure Detail drawing(s)

l. Control Equipment Enclosure Structural drawing(s)

m. Control Equipment Enclosure Lighting and Electrical drawing(s)

n. Control Equipment Enclosure HVAC calculations

o. 3-Line Diagram(s)

p. AC and DC Schematic Diagram(s)

q. Panel Layout drawing(s)

r. Panel Front View drawing(s)

s. Panel Bill of Materials document(s)

t. Panel Nameplate Schedule

u. SCADA point list

v. DFR point list

w. Comm equipment rack elevations with Bill of Materials & Schematics

x. Hawaiian Telcom equipment rack elevations

Submit detail design Drawings for ordering all major equipment in a timeframe that supports the Project Schedule. Secure Company approval of design Drawings prior to releasing the design for equipment manufacture or purchase.

Final / 90% Design Package- Draft Construction Documents

Overhead Power Line

The Final Design Package shall be performed after the Company has completed its review of the Detailed Design Package. The Final Design Package shall constitute a complete construction package.

Typically the Final Design Package shall include, at a minimum:

a. All items updated from the Detailed Design Package with Company comments incorporated

b. Vendor steel pole fabrication and erection drawing(s)

c. Vendor steel pole calculations

d. Foundation detail(s)

e. Foundation calculations

f. Target installation torque values for helical anchors

g. Assembly and installation detail(s)

h. Grounding detail(s)

i. Staking sheet

j. Stringing charts

k. Other construction sections, details and notes that produce a complete package of all work

l. PLS-CADD .bak file(s) for final design, including property survey overlay Underground Infrastructure Design

The Final Design Package shall be performed after the Company has completed its review of the Detailed Design Package. The Final Design Package shall constitute a complete construction package.

Typically the Final Design Package shall include, at a minimum:

a. All items updated from the Detailed Design Package with Company comments incorporated

b. For Company non-standard manhole, handhole, vault designs or approved vendors:

1) fabrication drawing(s)

2) calculations

c. Trench and excavation restoration detail(s) Underground Electrical Design

The Final Design Package shall be performed after the Company has completed its review of the Detailed Design Package. The Final Design Package shall constitute a complete construction package.

Typically the Final Design Package shall include, at a minimum:

a. All items updated from the Detailed Design Package with Company comments incorporated

b. Plan drawing(s), including Company-provided numbers for manholes, handholes and vaults, and equipment

c. Cable pulling instructions

d. Cable reel chart (for special order cable reels with a specific length that are to be used for specific spans)

e. Other construction sections, details and notes that produce a complete package of all work Substation Design

The Final Design Package shall be performed after the Company has completed its review of the Detailed Design Package. The Final Design Package shall constitute a complete construction package.

Typically the Final Design Package shall include, at a minimum:

a. All items updated from the Detailed Design Package with Company comments incorporated

b. Steel Detail Shop Assembly drawing(s)

c. Steel Erection drawing(s)

d. Complete Bill of Materials for Contractor-supplied equipment

e. Catalog cut sheets for equipment and materials that do not come with engineered drawings

f. Equipment Nameplate Schedule

g. Control Equipment Enclosure Assembly drawing(s), for pre-fab buildings only

h. Wiring Diagram(s) for all equipment electrically connected

i. Cable Schedule

j. Drawing List

k. Protective relay settings calculations

l. Protective relay settings files

m. DFR configuration file(s)

n. Annunciator configuration file(s)

o. Communication equipment configuration file(s)

p. Communication equipment rack wiring and connections

q. Hawaiian Telcom rack wiring and connections

r. RTU configuration document(s)

s. RTU configuration files

Issued for Construction (IFC) Package

1. If the Final Design Package is approved by the Company with no comments, then it shall be deemed approved for construction. Upon receiving this approval, issue a sealed and signed set of Drawings representing the Issued for Construction (IFC) package.

2. However, if the Final Design Package results in comments by the Company, further revisions shall be submitted until all comments are resolved.