Modular_Enclosure_Statement_of_Work.pdf

Statement of Work

This Statement of Work describes a portable, modular distribution enclosure for 480V, 3-Phase electrical power. The quantities and descriptions provided below are for each complete unit.

Site visit requested prior to quote submission, but not required.

Major Features

1. Provide a new 20’L x 8’6”H x 8’ W steel dry freight ISO shipping container. Exterior to be marine grade white paint.

2. Include full-size swing doors in one end of the container.

3. In the end opposite the swing doors, cut, frame, and reinforce a personnel door opening and install a 36” wide x 80” high steel personnel door with hardware, fully weatherstripped and countersunk with stainless steel handle on exterior and interior. Personnel door is to open outward.

4. Cut, frame & reinforce one opening; 16” high x 26” wide for through the wall A/C unit. Supply a removable cover for this opening and locate per the attached drawings.

5. Install a Friedrich Model YS12N33C heat/cool unit into the opening for the A/C unit. Equivalent models must be submitted to the customer for approval before acceptance.

6. Supply & weld in place 3 rows of 1-5/8” horizontal strut channel. Install on the interior walls the full available length of container. Bottom row to be located 24” from finished floor, with subsequent rows spaced 24” apart. Strut is to be flush with interior side walls. Strut not required on end walls.

7. Floor to be marine grade plywood, paint nonskid gray.

8. Supply and install interior insulated wall system to include a minimum 1 ½ “ foam insulation and

3/4” plywood with smooth plastic liner panels. Interior walls to be white.

9. Fabricate cable entrance openings per the attached drawings. Entrances shall include weather hoods fabricated from sheet rubber similar to the attached photographs.

10. Install interior electrical services per the following:

a. Supply and install a 480VAC, 30 Amp, 3 Pole fused safety disconnect on the exterior as shown in the attached drawings. Switch to feed 15kVA (480 primary, 120/240 secondary, single phase) transformer on interior. Switch to be labeled as “S-LHTE”.

b. Install 120/240VAC distribution panel on the inside of the wall as shown on the attached drawings. Panel to be fed by the 15kVA transformer.

c. Supply and install (2) 4’ long LED light fixtures with dust & vapor covers with 1 light switch. See attached sheets for exact location of the light switch and fixtures. Wire lights to “Circuit 1” on the distribution panel.

d. Supply and install NEMA 6-20R receptacle to supply 240V to the heat/cool unit. Wire to “Circuit 2” on the distribution panel.

e. Supply and install NEMA 5-20R receptacle “quad-boxes” at each corner of the interior wall on the “right” side when entering the personnel entrance. Wire to “Circuit 3” on the distribution panel.

f. Supply and install (Circuit 4) a spare 20 Amp, 2 pole circuit breaker in the distribution panel.

g. Supply and install (Circuit 5) a spare 20 Amp, 1 pole circuit breaker in the distribution panel.

h. Supply and install (Circuit 6) a spare 20 Amp, 1 pole circuit breaker in the distribution panel.

11. Provide all shop drawings and an opportunity for the customer to make a site visit for quality assurance before delivery.

Equipment Outfitting

1. Provide and install (2) ASCO Automatic Bypass-Isolation Transfer Switches and associated cabling in accordance with the attached drawings. Exact part number for each ATS to be:

7ATB-3400M5XC with options 6D, 73AB3, 135SB, and 99.

2. Provide and install (4) enclosed circuit breakers and associated cabling in accordance with the attached drawings.

3. 400A Circuit breakers to be Cutler Hammer #KD3400 inside #RKDN400 enclosures.

4. Connectors to be installed into cabinets as shown using Duraline E1023 “J” series connectors.

5. Transfer switches shall include “box-mount” connections throughout. Include Duraline “J” series connectors for Emergency, Normal, and Load connections. Include Amphenol “Ecomate” connector for engine start cabling as shown in Figure 7.

6. Single-pole cabling shall be “whips” with Duraline factory-molded E1023 “J” series single pole locking connectors on 535 MCM “DLO” cable.

7. Cable entrances into switch enclosures shall be made with weather-tight sealing strain relief around each individual cable. Design basis is Altech #5308 538.

8. All single pole locking connectors shall be color-coded “Black” to Phase A, “Blue” to Phase B, and “Red” to Phase C.

9. Provide (2) separate freestanding 330KVA NEMA3R-rated isolation transformers as shown in the attached drawings. Model to be ACME model # DTGB03304S with NEMA 3R weather shield kit.

Transformers are to include “Duraline Whips” for primary and secondary feeders as described above.

Figure 1:

Shipping container with exact location of HVAC cutout. Interior View.

Figure 2:

Cutaway view with locations of strut on far wall and 120/240V equipment on near wall.

Figure 3:

Exterior features

Figure 4:

3 exterior cable entrance locations, dimensioned to exterior enclosed breakers

Figure 5:

Interior equipment arrangement

Figure 6:

Interior mounting locations. Dimensions shown on cable entrance openings.

C

D

A

B

C

D

A

B

NOTES:

1. THE LOAD HOUSE TRANSFER ENCLOSURE (LHTE) CONTAINS 120/240VAC ELECTRICAL DISTRIBUTION NOT SHOWN HERE FOR FEEDING LIGHTS AND HVAC.

2. EACH CONDUCTOR ON THIS SHEET, UNLESS OTHERWISE NOTED, REPRESENTS 3 CABLES (1 PER PHASE).

LOAD HOUSE

TRANSFER

ENCLOSURE

(LHTE) ATS-A

400A MIN

ASCO ATS

ATS-B

400A MIN

ASCO ATS

NORMAL

L

N

EMERGENCY

E

NORMAL

L

N

EMERGENCY

E

T-A

X2

X0

X1

H3

H1

330KVA

450VAC 3PH

DELTA PRI

450VAC 3PH

WYE SEC

H2

X3

BLK BLU

RED

REDBLU

T-B

X2

NEUT

X0

X1 H3

H1

330KVA

450VAC 3PH

DELTA PRI

450VAC 3PH

WYE SEC

H2

X3

WHT

BLK BLU

RED

REDBLU

BLK

T-A AND T-B TRANSFORMER TAP WIRING

ENGINE

START

CONTACTS

AWG 16

TO DIESEL

GENERATOR FOR

AUTO START

WIRE PIN 1 TO

TERMINAL 1, PIN 2 TO

TERMINAL 2

ENGINE

START

CONTACTS

AWG 16

TO DIESEL

GENERATOR FOR

AUTO START

WIRE PIN 1 TO

TERMINAL 1, PIN 2 TO

TERMINAL 2

400A

CB-TA

400A

CB-TB

MOUNTED TO

ENCLOSURE

EXTERIOR

MOUNTED TO

ENCLOSURE

EXTERIOR

500 MCM

THHN

500 MCM

THHN

2 2 2 2

3 3

5 5

BLK

NEUT

WHT

FED

FROM

ATS-A

FED

FROM

ATS-B

SET ALL MAGNETIC

TRIP SETTINGS TO

10X.

SET ALL MAGNETIC

TRIP SETTINGS TO

10X.

AWG 1/0 THHN

AWG 1/0 THHN

400A

S-1

SET ALL MAGNETIC

TRIP SETTINGS TO

10X.

400A

S-2

SET ALL MAGNETIC

TRIP SETTINGS TO

10X.

CONNECTORS ON THIS FIGURE

1 DURALINE (750V/690A), 2 EA: DE1023-1626

(BLK), -1640 (BLU), -1630 (RED).

2 DURALINE (750V/690A), 6 EA: DE1023-1601

(BLK), -1613 (BLU), -1605 (RED)

3 DURALINE (750V/690A), 8 EA: E1023-56 (BLK),

-86 (BLU), -58 (RED).

4 DURALINE (750V/690A), 8 EA: E1023-106

(BLK), -136 (BLU), -108 (RED).

5 AMPHENOL ECOMATE C016 20C003 100 12.

400V. 4 PIN.

Figure 7:

480V Electrical 1-Line Diagram. Hashed line represents shipping container.