25_20_17_Control_Panels_and_Enclosures_Add1.doc

INFRASTRUCTURE IMPROVEMENTS FOR THE

SOUTH BAY INTERNATIONAL WASTEWATER TREATMENT PLANT

San Diego County, California

SPECIFICATION 25 20 17

CONTROL PANELS AND ENCLOSURES

PART 1 - GENERAL

1.1

RELATED DOCUMENTS, CONTRACT CLAUSES, AND SPECIFICATIONS

The following may not include all related documents, contract clauses, and technical specifications, and does not relieve the Contractor of the responsibility of performing work associated with this specification in accordance with all terms of the Contract herein.

A.

Contract: Section I “Specifications and Drawings for Construction”

B.

Other Specifications. Related work specified within the Contract that shall apply to all equipment, materials, labor and services furnished under this Specification shall include, but not be limited to, the following:

· SPECIFICATION 01 33 00, Submittal Requirements

· SPECIFICATION 01 75 01, Starting and Placing Equipment in Operation

· SPECIFICATION 01 75 02, Field Tests of Equipment

· SPECIFICATION 01 78 36, Warranty

· SPECIFICATION 01 78 23, Operation and Maintenance Data 1.2

DESCRIPTION

A.

Scope of Work:

1.

Furnish, install, test, and place into satisfactory operation the control panels, enclosures, and panel devices as shown on the Contract Drawings and as specified herein.

2.

Operational and functional requirements for the various panels are shown in control schematics and/or functional instrumentation diagrams on the Instrumentation (I) drawings and Electrical (E) drawings.

3.

The Contract Drawings and Specifications illustrate and specify functional and general construction requirements of the panel components and do not necessarily show or specify all components, wiring, piping, and accessories required to make a completely integrated system. Contractor shall provide all piping, wiring, accessories, and labor required for a complete, workable, and integrated system.

4.

Division 11 system equipment control panels which are to be furnished as part of a "packaged" system by the various system equipment vendors are identified on the Instrumentation (I) drawings. Operational and functional requirements for these panels are specified in the various Division 11 Specifications and are shown on the Process and Instrumentation Diagrams.

1.3

QUALITY ASSURANCE

A.

Standards, Codes and Regulations:

1.

Construction of panels and the installation and interconnection of all equipment and devices mounted within shall comply with applicable provisions of the following standards, codes, and regulations:

a.

Joint Industrial Council (JIC) Standards.

b.

National Electrical Code (NEC).

c.

National Electrical Manufacturer's Association (NEMA) Standards.

d.

Local and State Building Code.

e.

Operational Safety and Health Administration (OSHA) Regulations.

f.

American Society for Testing and Materials (ASTM).

g.

Where any conflict arises between codes or standards, the more stringent requirement shall apply.

2.

All electrical materials and equipment shall be new and shall bear the label of the Underwriters Laboratory (UL), Inc., Factory Mutual (FM) or equivalent where standards have been established and label service regularly applies.

3.

All control panels and enclosures shall be Underwriter's Laboratory labeled.

B.

Acceptable Manufacturers:

1.

Furnish panel instruments and devices by the named manufacturers compliance-confirmed equal equipment by other manufacturers.

2.

The named manufacturers have been specified to establish the standard of quality and performance of the equipment to be supplied.

3.

Obtain all instruments or devices of a given type from the same manufacturer.

C.

General Design Requirements:

1.

Comply with the requirements of Specification 25 20 10, Instrumentation and Control System General Requirements.

D.

Factory Assembly and Testing:

1.

Fully assemble and test each enclosure and panel at the factory prior to shipment, demonstrating that all specified functions can be performed.

2.

Contractor shall notify COR in writing at least three (3) weeks before expected initiation of panel tests. Factory testing of all Instrumentation panels and enclosures may be witnessed by GOVERNMENT and COR or a designated representative. Cost of lodging, meals, and travel for the GOVERNMENT and COR will be their respective responsibilities. However, if factory tests are not performed on the agreed date as a result of Contractor's or manufacturer's action, those costs will be borne by the Contractor. The presence of GOVERNMENT and COR during testing does not relieve the Contractor from conforming to the requirements of the Contract Documents and shall in no way imply acceptance of the equipment.

3.

Comply with the requirements of Specification 25 20 10, Instrumentation and Control System General Requirements; and Specification 25 20 11, Instrumentation and Control System Factory testing...

1.4

SUBMITTALS

A.

Comply with the requirements of Specification 01 33 00, Submittal Requirements; and Specification 25 20 10, Instrumentation and Control System General Requirements.

1.5

MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Specification shall not be measured and paid for directly, but shall be considered to be included in the Lump Sum Bid for this Contract.

1.6

PRODUCT DELIVERY, STORAGE AND HANDLING

A.

Comply with the requirements of Specification 01 69 00, Transportation, Handling and Storage of Materials and Equipment; and Specification 25 20 10, Instrumentation and Control System General Requirements.

1.7

GENERAL CONSTRUCTION REQUIREMENTS

A.

Provide all electrical and/or pneumatic components and devices, support hardware, fasteners, interconnecting wiring and/or piping required to make the control panels complete and operational units. Provide bulkhead fittings for all air piping and tubing leaving control enclosures.

B.

Locate and install all devices and components so that connections can be easily made and so that there is ample room for servicing each item.

C.

Components for installation on panel exterior shall be located as shown on the Contract Drawings. Layouts shall be submitted for compliance-confirmation as per Specification 25 20 10, Instrumentation and Control System General Requirements. All exterior panel mounted instruments shall have a NEMA rating equal to or more stringent than the enclosure. For devices which cannot be obtained with a NEMA rating equal to the enclosure, mount the device behind a transparent viewing window as specified in Paragraph 1.8.B.3. of this Specification. The window shall maintain the NEMA rating of the enclosure.

D.

Where permitted by location and layout as shown on the Contract Drawings, all panels and enclosures shall have full height rear access doors. Where rear doors are not possible due to space limitations, or if specifically noted, panels shall have full height front access doors. The Contractor is advised to review the floor plans for allotted space.

E.

Adequately support and restrain all devices and components mounted on or within the panel to prevent any movement.

F.

Provide subpanels for installation of all internally mounted components.

G.

Provide mounting strips for installation of all relays and other components where mounting strips are practical.

H.

All wiring to panel connections from field instruments, devices, and other panels shall be terminated at master numbered terminal strips, unless otherwise specified.

I.

Provide the following convenience accessories inside of each control panel:

1.

At least one 120 VAC, 15A duplex, grounding type receptacle.

2.

At least one 120 VAC fluorescent light fixture with minimum 40 watt lamp and protective plastic shield.

3.

One 120 VAC, 15A, grounded snap switch in an outlet box with a cover to turn on the light. The switch shall be located so that it is easily accessible from the door.

4.

The service light with switch and duplex receptacle shall each have their own circuit breaker.

J.

The bottom 12 inches of free standing panels shall be free of all devices, including terminal strips, to provide ease of installation and testing.

K.

No device shall be mounted less than 36 inches above the operating floor level, unless otherwise specified or shown.

1.8

IDENTIFICATION

A.

Provide laminated plastic nameplates for identification of panels, enclosures, and components mounted thereon as follows:

1.

Nameplates shall be of 3/32 thick laminated phenolic type with white matte finish and black letter engraving.

2.

Panel identification nameplates to have 1/2‑inch high letter engravings, unless otherwise noted on the Contract Drawings.

3.

Panel mounted component identification (i.e. control devices, indicating lights, selector switches, etc.) nameplates to have 1/4 inch high letter engravings, unless otherwise noted on the Contract Drawings.

4.

Nameplates shall be attached to the panel face with two stainless steel self-tapping screws.

5.

Nameplate engravings shall include the descriptive title indicated on the Contract Drawings and Specifications.

B.

Tag all panel mounted instruments in accordance with Specification 25 20 17, Control Panels and Enclosures, Paragraph 1.9.D.11.

C.

Tag all electrical components and devices mounted within control panel enclosures with engraved nameplates as specified in A. above. Tag all door mounted devices on the rear of the door with engraved nameplates as specified in A. above. All interior panel nameplates shall be attached with self-backed adhesive.

D.

Tag all pneumatic lines with plastic tags. Paper tags are not acceptable.

E.

Numerically code terminals on terminal strips.

F.

Color code and/or numerically code wiring as required by applicable standards. Wires shall be identified at each end with permanent alphanumeric codes as specified below.

G.

All wiring not de-energized by the panel disconnect or circuit breaker shall be yellow. For all panels containing wiring not de-energized by the panel disconnect or circuit breaker, provide a warning nameplate on the front of the panel stating "WARNING YELLOW WIRING NOT DE-ENERGIZED BY PANEL DISCONNECT". The nameplate shall be amber with black, 1/4 inch high letter engravings and shall be attached externally to the panel access door with stainless steel screws.

1.9

PANELS AND ENCLOSURES

A.

General:

1.

Panels and enclosures shall meet the NEMA requirements for the type specified and/or shown on the Contract Drawings or called out in the specifications.

2.

Sizes shown on the Contract Drawings are estimates. Contractor shall furnish enclosures of the size required to house all equipment, instruments, front panel mounted devices, power supplies, power distribution panels, wiring, tubing, and other components installed in the enclosures.

B.

Construction Features:

1.

All control panels shall be fabricated in accordance with the NEMA ratings specified or shown on the Contract Drawings.

a.

Provide lifting eye bolts to facilitate handling of the enclosures, where enclosure size requires. Bolt lifting eyes directly to the enclosure structural members.

b.

Continuously weld all exterior seams and grind smooth.

c.

Reinforce sheet steel with steel angles where necessary to adequately support equipment and ensure rigidity and to preclude resonant vibrations.

d.

Panel shall be flat within 1/16-inch over a 24-inch by 24-inch area, or flat within 1/8-inch for a larger surface. Flatness shall be checked by using a 72-inch long straight edge. Out-of-flatness shall be gradual, in one direction only, and shall not consist of obvious depressions or a series of wavy sections.

e.

Use pan type construction for doors. Door widths shall not exceed 36 inches.

f.

Mount doors with full length heavy duty piano hinge with stainless steel hinge pins.

g.

Provide oil resistant gasket completely around each door or opening.

h.

Use stainless steel fasteners throughout.

i.

Provide interior mounting panels and shelves constructed of minimum 12 gauge steel with a white enamel finish.

j.

Provide steel print pocket with white enamel finish.

k.

Provide enclosure mounting supports and/or bases as required for floor, frame, or wall mounting.

l.

All panels outside of control rooms shall have solid bottoms.

m.

Provide all holes and cutouts for installation of conduit and equipment. Cable and piping shall enter the enclosure through the bottom unless otherwise noted. All conduit and piping openings and all conduits shall be sealed watertight.

2.

Control panels located inside control room areas shall be NEMA 12 rated unless otherwise noted on the Contract Drawings.

a.

Fabricate enclosures using minimum 14 gauge steel for wall or frame mounted enclosures and minimum 12 gauge for free standing enclosures. Steel shall be free of pitting and surface blemishes.

b.

Provide handle-operated, oil-tight, key-lockable three point stainless steel latching system with rollers on latch-rods for easy door closing.

c.

Completely clean all interior and exterior surfaces so they are free of corrosive residue, oil, grease, and dirt. Zinc phosphatize for corrosion protection.

d.

One coat of primer shall be applied to all interior and exterior surfaces immediately. Exterior surfaces shall then be given sufficient coats of primer surfacer, applied with sanding and cleaning between coats, until a Grade 1 finish can be produced on the finish coat.

e.

All interior surfaces shall be painted with 2 coats of semi-gloss white enamel.

f.

All exterior surface shall be painted with a minimum of 3 finish coats of enamel to ultimately produce a Grade 1 finish (super smooth; completely free of imperfections). Color shall be ANSI 61 gray, unless otherwise indicated.

g.

Primer and finish paint shall be compatible and shall be Sherwin-Williams "Polane T Polyurethane Enamel" compliance-confirmed equal.

h.

Provide one extra quart of touch-up paint for each exterior finish color.

3.

All control panels not located in control rooms shall be NEMA 4X rated unless otherwise noted on the Contract Drawings.

a.

Panels shall be non-metallic or Type 316 stainless steel construction with a minimum thickness of 12 gauge for all surfaces (except those areas requiring reinforcement) having a smooth brushed finish.

b.

Provide stainless steel fast-operating clamp assemblies on three sides of each door.

c.

Provide a rolled lip around three sides of door and along top of enclosure.

d.

Provide a hasp and staple for padlocking. Provide padlock for each enclosure, all keyed alike.

e.

Provide Type 316 stainless steel sun shielding for all outdoor panels.

f.

Provide a clear plastic, NEMA 4X, gasketed, lockable, hinged door or a stainless steel window kit to encompass all non-NEMA 4X front of panel instruments.

g.

Provide 3-inch high channel base assembly, with solid bottom, drilled to mate the panel to its floor pad.

h.

Floor pad shall be as specified in Paragraph 3.1 of this Specification.

4.

Control panels and enclosures located in hazardous areas, as specified or shown on the Contract Drawings, shall be NEMA 7 rated.

1.10

ELECTRICAL SYSTEMS

A.

Control of Environment (refer to Specification 25 20 10, Instrumentation and Control System General Requirements, Paragraph 1.7.D. for ambient temperature design criteria):

1.

Outdoor Panels:

a.

Provide automatically controlled heaters to maintain temperature inside each enclosure above the minimum required for component operation and to prevent/control interior condensation over an outside ambient temperature range of ‑10(F through 120(F.

b.

Provide automatically controlled closed loop heat exchangers or closed loop air conditioners with filtered air louvers if required to maintain temperature inside each enclosure below the maximum operating temperature rating of the components inside the enclosure.

c.

Provide internal corrosion inhibitor devices, Hoffman HCI Series compliance-confirmed equal, for corrosion control inside of each enclosure.

2.

Indoor Panels:

a.

Provide automatically controlled heaters as required to maintain temperature approximately 10F above ambient for condensation prevention inside panels.

b.

Provide automatically controlled closed loop heat exchangers or closed loop air conditioners with filtered air louvers if required to maintain temperature inside each enclosure below the maximum operating temperature rating of the components inside the enclosure.

c.

Provide internal corrosion inhibitor devices, Hoffman HCI Series compliance-confirmed equal, for corrosion control inside of each enclosure.

3.

Panel heaters shall be thermostatically controlled, fan-driven heaters, with all components mounted in an anodized aluminum housing for sub-panel mounting. The heaters shall be powered from 115 VAC from a dedicated circuit breaker and shall be Hoffman Bulletin D-85, compliance-confirmed equal.

4.

Heat exchangers and air conditioners shall be of a dual loop design to isolate panel interior air from exterior air. The units shall be thermostatically controlled and shall be powered from 115 VAC from a dedicated circuit breaker. The units shall be Hoffman Design-Air, Kooltronics, compliance-confirmed equal. Units located on outdoor enclosures shall be NEMA 4X rated.

B.

Power Source and Internal Power Distribution:

1.

General: Control panel power supply source type, voltage, number of circuits and circuit ratings shall be as shown on the Electrical Drawings. All electrically powered equipment and devices shall be suitable for operation on 115 volt +/‑ 10%, 60 Hz +/‑ 2 Hz power. If a different voltage or closer regulation are required, a suitable regulator or transformer shall be provided.

2.

Control panels shall be provided with a 120/208V, 3 phase, 4 wire, 60 amp, 12 circuit panel board with a 30 amp 3 pole main circuit breaker or a 120\240V, 1 phase, 3 wire, 60 amp, 12 circuit panel board with a 30 amp 2 pole main breaker, this shall be coordinated with the Electrical Drawings for the characteristics of the electrical systems in each area. Utilize 15 amp circuit breakers, number as required, with a minimum of 2 spare. This equipment shall meet Division 16 requirements. One circuit minimum shall be equipped with a voltage regulating line isolation transformer with 120V secondary for voltage sensitive equipment. Remaining circuits shall be utilized for the equipment in the control panel. Isolate loads on circuits as much as possible. Provide a durable legend mounted near the panelboard which lists the circuit breaker number and description of its connected load. Also include panel name and circuit numbers which provide power to this control panel panelboard.

3.

Provide DC power supplies of quantities and sizes as required for powering DC signal and control loops for all 2‑wire transmitters, loops for monitoring discrete inputs and all necessary outputs.

4.

Design all power supplies for a minimum of 150% of the maximum simultaneous current draw.

5.

Provide a power line filter/surge protector, by Innovative Technologies P-Plus Series compliance-confirmed equal, for the incoming power circuits to the control panel to eliminate electrical noise and/or transients and harmonic distortion.

C.

Power Conditioner/Uninterruptable Power Supply:

1.

Rating: 120V AC, 60 hertz, 1KVA minimum to provide uninterrupted conditioned power for the PLC system (processors, communication modules, I/O Racks, etc.) under fully loaded conditions for 30 minutes.

2.

Description: On line dual track power conditioner and uninterruptible power supply utilizing ferro-resonant transformer for continuous line regulation and conditioning, sealed 48 volt maintenance free batteries and switch mode power supply for uninterrupted power with 0.5 to 0.7 power factor and 2.7 to 3.5 crest factor.

3.

Lighting and Surge Protection: Inherent 2000: 1 spike attenuation.

4.

Regulation: (1-3 percent load regulation with less than 2pF effective coupling capacitance for line to load.

5.

Output Waveform: Computer grade sine-wave with 3% maximum single harmonic and 5% maximum total harmonic distortion.

6.

Output Frequency: 60 hertz (0.5 hertz.

7.

Operating Temperature: 0 degrees to +40 degrees Centigrade.

8.

Input Voltage: 120 volts +15%, -20%.

9.

Computer Interface: RS232 port for display of 22 meter functions and 15 alarm functions.

10.

Input Protection: Independent battery charger fuse and DC fuses.

11.

Output Protection: Inherently current limited ferro-resonant transformer.

12.

Battery Charger: Two step charger, 8 amp and 2 amp.

13.

AC Input: 120V, 15 amp.

14.

AC Output: Five, 15 amp ROV receptacles.

15.

Every LCP that contains a PLC or remote I/O shall have a UPS system.

16.

The UPS for the ADMIN-PCC LCP shall be sized to also provide 150% capacity power to the Data Logger and Programming Units and Control Console equipment (lights, fans, etc., see Specification 25 20 15, Programmable Controller System).

D.

Electrical Wiring and Accessories:

1.

Unless otherwise specified, internal wiring shall be Type THHN stranded copper wire with thermoplastic insulation rated for 600 V at 85( C for single conductors, color coded and labeled with wire identification.

2.

For DC signal wiring, use No. 16 minimum AWG twisted pairs with overall shield.

3.

For AC power wiring, use No. 12 minimum AWG. For AC and DC signal and control wiring, use No. 16 minimum AWG. For wiring carrying more than 15 amps, use sizes required by NEC and JIC standards.

4.

Install wiring runs in wire troughs along horizontal or vertical routes to present a neat appearance. Angled runs are not acceptable.

5.

Separate and shield DC signal wiring from power and control wiring by a minimum of 4 inches, using separate wire troughs.

6.

Where possible or practical in the panels and enclosures, route the low voltage DC signal wiring along the right portion of the enclosure subpanel(s) and route the AC power and control wiring to the left portion of the subpanel(s), with the incoming power and distribution circuit breakers located to the upper left.

7.

Group or bundle parallel runs of wire using covered troughs. Maximum bundle size to be 1 inch. Troughs shall have 40 percent spare capacity.

8.

Adequately support and restrain all wiring runs to prevent sagging or other movement.

9.

Terminal Blocks:

a.

Terminate all field wiring and internal panel wiring at 600 V barrier type terminal blocks.

b.

Terminal blocks shall be tubular screw type with pressure plate capable of accepting #22-#8 wires and shall be mounted on rigid steel rail.

c.

Heavy duty end anchors shall be provided on both ends of all terminal strips to firmly anchor the terminal blocks to the mounting rail and insulating end barriers shall be provided on one end of the terminal strip as necessary.

d.

No more than two wires shall be terminated at any single screw. Provide jumpers as required to join adjacent terminal blocks for additional wiring connection points.

e.

All terminal blocks shall be labeled with permanently affixed numeric identifiers on each block. Identifiers shall be self-stick plastic tape strips with permanent, machine printed numbers.

f.

Provide a separate terminal block for landing each analog signal cable shield.

g.

Provide separate terminal strips for DC signal and AC power wiring.

h.

Provide spare terminal blocks equal in number to 20 percent of the terminals used for each type of wiring (i.e., DC signal and AC power).

10.

Fused Terminal Blocks:

a.

Provide fused terminal blocks for all wiring powered from within panels or enclosures to devices located outside the panel or enclosure, as shown on the Contract Drawings and as required.

b.

Fused terminal blocks shall be UL/CSA compliance-confirmed, 600 V, capable of accepting #22-#10 wires, and shall be mounted on rigid steel rail.

c.

Heavy duty end anchors shall be provided on both ends of all terminal strips to firmly anchor the terminal blocks to the mounting rail and insulating end barriers shall be provided on one end of the terminal strip as necessary.

d.

Provide fuses (sized as required) for all fused terminal blocks and fuse puller for each control panel LCP.

e.

Provide 20 percent spare fused terminal blocks rail mounted within each panel or enclosure.

11.

Wire Markers:

a.

All panel wires and field wires shall have an alphanumeric identification tag at each point of termination.

b.

Where practical, wire numbers shall be unique and continuous.

c.

Each wire number shall be solid, machine printed, and not pieced from other single and/or double digit tags.

d.

Wire markers shall be heat, oil, water, and solvent resistant, vinyl, self-laminating, self-adhesive, wrap type labels as manufactured by Thomas & Betts Shrink-Kon, HVM marker system, vinyl, computer printable, or Raychem, or compliance-confirmed equal.

e.

All wire labels shall be clearly visible and not hidden by wire duct or other components in the enclosures.

12.

All wiring shall be installed such that if wires are removed from any one device, power will not be disrupted to any other device.

13.

All alarms generated external to the panel, spare alarm, and repeat contacts shall be wired out to terminal blocks.

14.

Use separate, isolated 5/16-inch diameter copper grounding studs or 1/4 inch thick drilled and tapped copper bus bars for instrument signal cable shield grounding connections and instrument power/equipment grounding system.

15.

Where wires pass through panel walls, provide suitable bushings to prevent cutting or abrading of insulation.

16.

When DC power and/or low voltage AC power is required, provide and install the necessary power supplies and transformers in the panel.

17.

Provide circuit breakers to protect each circuit, with no more than six instruments on a single circuit.

18.

Provide complete wiring diagram showing "as built" circuitry. Diagram shall be enclosed in transparent plastic and placed in easily accessible pocket built into panel door.

1.11

LISTING OF PRODUCTS

A.

An effort has been made to denote if a particular device is not being used. However, some devices may be included in this specification which are not part of the Contract.

PART 2 – MATERIALS, EQUIPMENT, AND PRODUCTS

2.1

INDICATOR UNIT

A.

General: Indicator Unit shall be a signal monitoring instrument that provides continuous monitoring of process variable.

B.

Required Features:

1.

Front Face: NEMA 3 or as required by the panel NEMA rating if more stringent.

2.

4‑20 mA input.

3.

4-20 mA retransmission output.

4.

6 digit LED display

5.

For range, location and tag number, see Specification 25 20 14, System Functional Requirements.

2.2

POWER SUPPLIES

A.

General: Single unit and multiple unit power supplies, located in control room panels, remote terminal units and field panels as required.

B.

Single Unit Required Features:

1.

Solid state circuitry.

2.

Surface mounting.

3.

Input Power: 117 VAC (10 percent, 60 Hz.

4.

Output Power: 24 VDC or as required.

5.

Line/Load Regulation: (0.005 percent.

6.

Ripple: 0.25 mv RMS.

7.

Overload Protection: Internal preset.

8.

Include mounting brackets, fuse, and mating connector for a-c power plug.

C.

Multiple Unit Required Features:

1.

Solid state circuitry.

2.

Standard 19-inch RETMA (EIA) rail mounting.

3.

Input Power: 120 VAC (10 percent, 60 Hz.

4.

Output Power: 24 VDC or as required.

5.

Include over‑voltage protection, output current limiting protection, power supply failure alarm contacts, provisions for paralleling power supplies and front panel mounted indicating fuses, test jacks and adjustments.

6.

If the power supplies are connected in parallel, provide isolation diodes in series with the positive lead of each of the parallel connected power supplies.

7.

Connections:

a.

Twist‑lock a-c power connector.

b.

d-c power terminal strip.

2.3

ELAPSED TIME METER

A.

General: The unit shall be a self‑powered, non‑reset, solid state counter which provides silent, accurate and noise immune operation.

B.

Required Features:

1.

Power: No external power; 5 year minimum battery life.

2.

Display:

a.

Type: Liquid crystal.

b.

Digits: Six.

c.

Figure Size: 1/2‑inch approximately.

d.

Display Life: 50,000 hours minimum.

e.

Provide indication of sufficient battery power.

3.

Input: 120 VAC.

4.

Mounting: Provide accessories for panel mounting.

5.

Nameplate below the LCD display shall read "HOURS" and shall carry the equipment name as shown.

2.4

CONTROL RELAYS

A.

Type: General purpose, plug‑in type rated for continuous duty.

B.

Construction Features:

1.

Coil Voltages: 24 VDC, and 120 VAC as required.

2.

Contacts (DPDT minimum):

a.

Silver cadmium oxide, gold flashed except in cases for switching low energy circuits (<200 mA) where fine silver, gold flashed contacts shall be provided.

b.

Rating: Compatible with AC or DC throughout voltage and current of devices simultaneously operated by contacts but not less than the following:

1) Silver cadmium oxide, gold flashed not less than 10 amperes resistive at 120 VAC or 28 VDC continuous.

2) Fine silver, gold flashed not less than 3 amperes resistive at 120 VAC or 28 VDC continuous.

3.

Provide an indicator light (LED) when relay is energized.

4.

Relays to have clear plastic dust cover.

5.

Relays to be UL recognized.

2.5

SELECTOR SWITCHES, PUSHBUTTONS AND INDICATING LIGHTS

A.

General:

1.

Selector switches, pushbuttons and indicating lights shall be supplied by one manufacturer and be of the same series or model type.

2.

Type:

a.

Heavy duty, oiltight, 30.5mm.

3.

Provide legend plate for indication of switch, pushbutton or light function (i.e. Open‑Closed, Hand‑Off‑Auto).

4.

Mounting: Flush mounted on control panel front, unless otherwise noted.

5.

NEMA rated to match panel in which mounted. Non-metallic, corrosive resistant type shall be used for NEMA 4X applications.

B.

Selector Switches:

1.

Type: Provide selector switches with number of positions as required to perform intended functions as shown and specified.

2.

Contacts:

a.

Provide number and arrangement of contacts as required to perform intended functions specified but not less than one single pole, double throw contact.

b.

Type: Double break, silver contacts with movable contact blade providing scrubbing action.

c.

Rating: Compatible with a-c or d-c current with devices simultaneously operated by the switch contacts but not less than 10 amperes resistive at 120 volts a-c or d-c continuous.

3.

Switch Operator: Standard black knob.

C.

Pushbuttons (Standard or Illuminated):

1.

Type: Provide momentary lighted and/or unlighted, single and/or dual type pushbuttons as required to perform intended functions specified and shown.

2.

Contacts: Comply with the requirements specified for selector switches.

D.

Indicating Lights:

1.

Type: Compact, integral transformer push-to-test type.

2.

Lamps: 6 volt, long life (20,000 hours minimum).

E.

Button and Lens Colors:

1.

Green for indication of open, on, running.

2.

Red for indication of closed, off (ready), stopped.

3.

Amber for indication of equipment malfunction, process trouble and alarms (i.e. high level, low level, etc.).

4.

Blue for indication of electrical control power on.

F.

Rotary Cam Switches:

1.

Provide rotary cam switches with number of positions and poles as required to perform the required signal switching function specified and shown.

2.

Contacts:

a.

Gold-flashed contacts housed in mechanical contact blocks with number and arrangement of contacts as required to perform intended functions.

b.

Contact Rating: Compatible with a-c or d-c through-put current of signals and devices simultaneously operated by the switch contacts but not less than 20 amperes at 600 VAC or 250 VDC continuous.

3.

Switch Operator: Standard black knob.

G.

Product and Manufacturer: Provide one of the following:

1.

Type E30, as manufactured by Cutler-Hammer.

2.

Series 800, as manufactured by Allen Bradley.

3.

Compliance-confirmed equal.

H.

Ten Turn Potentiometer:

1.

Required Construction a.

Wirewound, precision, ten turn (3600().

b.

Resistance tolerance: + 5%.

c.

Resistance: Range as required by application.

d.

Dielectric Strength: 1000 VAC for 60 seconds e.

Working Voltage: 500V max.

f.

Power Rating: 2W at 70(C.

g.

Stainless steel shaft with skirted round knob.

2.6

SPARE REPLACEMENT UNITS AND PARTS

A.

Spare replacement instruments and components shall be provided for the panel mounted devices as follows:

1.

Ten (10) spare control relays as specified in Part 2.12 of this Specification.

2.

One (1) spare 24 VDC power supply as specified in Part 2.7 of this Specification.

3.

10 spare bulbs for each type of bulb used in the system (including annunciator bulbs).

4.

10 spare fuses for each type of fuse used in the system.

B.

All spare parts shall be individually packaged for protection against impact, moisture and dirt. Each package shall be clearly labeled as to its contents with a description and part number.

C.

All spare parts shall become the property of the GOVERNMENT. Contractor shall maintain the spare parts inventory as listed above, and replace, at no additional cost, all spare parts consumed during the one-year warranty period.

2.7

PANEL SCHEDULE

A.

Information specific to the various control panels furnished as part of the Instrumentation and Control System is listed in the schedule below. Information has been included for panels furnished under other Specifications with the exception of minor panels such as sump pump control panels, and notations have been made in the schedule accordingly.

B.

Every effort has been made to include specific information on control panels, however, some panels may have been inadvertently omitted. If information for any panel has not been included in the schedule below, Contractor shall verify requirements with the Engineer.

C.

Existing control panels and enclosures are shown on the Contract Drawings. The final locations for the new vendor furnished control panels and enclosures for the pump/equipment are dependent on vendor's equipment configuration and must be compliance confirmed by the COR. Control panels and equipment are listed as follows:

LCP-DAFCOM

LCP-SSC1

LCP-RAS1

LCP-SSTSP

LCP-EQSP

LCP-EQ MX (Mixers)

LCQ-EQWW

PART 3 – CONSTRUCTION OR EXECUTION METHOD

3.1

INSTALLATION

A.

Install equipment in conformance with NEC.

B.

Unless otherwise noted, install indoor panels on 4-inch grout pad. Lay grout after panel sills have been securely fastened down. Extend pad 4 inches beyond outside dimensions of base, all sides, solid, face-to-face.

C.

Unless otherwise noted, install outdoor panels on a reinforced concrete pedestal:

1.

Minimum Thickness: 8 inches with No. 4 steel reinforcing bars at 12 inches on centers, each way.

2.

Minimum Size: extend 12 inches longer than outer dimensions of base for each side and back, extend 48 inches in front .

3.

Provide excavation and backfill work in conformance with Specification 60 10 00, Excavation and Backfill.

4.

Provide concrete work in conformance with Division 3.

D.

Install anchor bolts and anchor in accordance with Specification 05 91 00, Anchor Bolt, Expansion Anchors and Concrete Inserts.

E.

Install and interconnect all equipment, devices, electrical hardware, instrumentation and controls, and process controller components into and out of and among the enclosures as indicated on the Contract Drawings.

3.2

TESTING AND ADJUSTMENT

A.

Perform system testing and make any adjustments necessary in accordance with this Specification and Specification 25 20 10, Instrumentation and Control System General Requirements.

B.

Perform power supply, voltage adjustments to tolerances required by the appurtenant equipment.

- End of Specification - August 25, 2015 Control Panels and Enclosures

USIBWC IBM15B0002

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