Report_2_Load_Letter.pdf

LIZARDOS ENGINEERING ASSOCIATES, P.C.

S:\5836\Documents\Letters\15-12-23_LJB.doc

December 23, 2015 March 23, 2016 Rev. 1

Mr. John Tirone PSEG Long Island 175 East Old Country Road Hicksville, NY 11801

Reference: Watch Hill Marina

Fire Island, NY Electrical Renovation

Lizardos Project No. 5836

Dear Mr. Tirone:

Lizardos Engineering Associates, P.C. (Lizardos) has been retained as the Engineers for the referenced project. The project will consist of the electrical renovation of the existing Marina power including a total of 74 pedestals, due to Hurricane Sandy.

Based on a phone conversation with you, PSEG LI cannot accommodate an upgrade of the existing 300kVA transformer to a large capacity transformer, due to weight limitations. PSEG LI has suggested that a 2nd electrical service required to be provided at the Watch Hill Marina to accommodate the loads.

The following is our approach on how Lizardos is planning to use the existing and new services:

Existing 300kVA Service

Based on the existing field condition, the 300kVA PSEG LI existing transformer will provide electrical services to the 74 marina pedestals only. The existing PSEG LI meter 80338490 is currently metering the Marina Pedestals and the concession power. The concession power will be removed from this service and connected to the 2nd electrical service.

These marina power pedestals electrical requirements are as follows:

Seventeen (17) marina pedestals with one (1) 50Amp, 208V, 1-phase receptacle, per boat slip, and one (1) kW meter, per boat slip.

Fifty-seven (57) marina pedestals with one (1) 50Amp, 120V, 1-phase receptacle per boat slip, and one (1) kW meter per boat slip.

The total demand loads for the Marina per the NEC are as follows:

1. Pedestal power - (1,037, 600VA) (30%) (90%) = 280.15 kVA

Total demand load on the existing service = 280.15kVA

Based on total demand load evaluation of 280.15kVA, Lizardos feels that the existing PSEG LI 300kVA transformer is adequate only to provide power to the Marina.

Mr. Jon Tirone - 2 - March 23, 2016

S:\5836\Documents\Letters\15-12-23_LJB.doc

2nd Electrical Service:

The remaining electrical existing requirements at the Watch Hill Marina are the Concession and FINS Power.

Currently, the existing PSEG LI meter 80338565 is metering the FINS power. This meter will also meter the concession power via a new distribution board with new current transformers per PSEG LI requirements.

These requirements are as follows:

One (1) existing 400Amp, 208V, 1-phase power requirement at the concessioner area.

One (1) existing 200Amp, 208V, 3-phase power requirement for F.I.N.S. on a separate PSEG LI meter.

The total connected load is 600 AMPS.

Lizardos is requesting a 2nd PSEG LI electrical service of 600AMPS, 120/208V, 3-Phase 4-wire provided via a PSEG LI pad mounted transformer with capacity of 225kVA.

Enclosed please find SKE-1R indicating the existing condition at the site and approximate location of the existing 300kVA transformer and proposed new 225kVA transformer

In addition to the above, we are requesting information as follows:

1. Verification of the service characteristics.

2. Maximum available short circuit current at the secondary of each transformer.

At your earliest convenience, please review the foregoing. We would be pleased to meet with you to discuss the project.

Sincerely, Giuseppe Licandro, Electrical Engineer

Enc.

cc: Mr. R. Aldorasi, Lizardos

Approximate location of existing PSEGLI

300kva transformer secondary feeders.

Approximate location of existing

300KVA PSEGLI transformer.

Approximate location of existing shed housing secondary distribution and electric meters.

Basin D

Basin C

Basin B

Basin A

Approximate location of new PSEGLI 225kva transformer secondary feeders.

Approximate location of new 225KVA

PSEGLI transformer.

ELECTRICAL SITE POWER PLAN

- EXISTING CONDITIONS

U.S. DEPARTMENT OF TRANSPORTATION

FEDERAL HIGHWAY ADMINISTRATION

EASTERN FEDERAL LANDS HIGHWAY DIVISION

STERLING, VIRGINIA

PROJECT

SHEET NO.

FIRE ISLAND NATIONAL SEASHORE

WATCH HILL MARINA

WATCH HILL VISITOR'S CENTER MARINA ELECTRICAL KEY PLAN

NOT TO SCALE

SKE-1R

AutoCAD SHX Text | PROJECT: 5836 | PLOTBY: GNG | PLOTDATE: 3/23/2016 3:24 PM | FILENAME: 5836-SKE-1R.dwg |