3-10974.28 - Addendum No 1.pdf

10974.28 A1-1 ARRO

THURMONT – HUNTING CREEK PFAS IMPROV. (PennBid)

ARRO Consulting, Inc. September 21, 2026

186 Thomas Johnson Drive, Suite 204

Frederick, MD 21702

ADDENDUM NO. 1

TOWN OF THURMONT, MARYLAND

HUNTING CREEK PFAS IMPROVEMENTS

In accordance with the requirements of the “Instructions to Bidders”, this Addendum shall be attached to and become a part of the Contract Documents for the above referenced project.

Concerning the Pre-Bid Meeting

1. A copy of the pre-bid meeting minutes and sign-in sheet are attached for information.

General Clarifications

1. Aluminum conduit below 10’ AFF and Rigid PVC above 10’ AFF are acceptable in the electric room and the proposed PFAS building.

2. No neutral was found in the existing MCC-WH3.

3. Record Drawing E-1 Thurmont 1997 Plans has been added for reference.

4. According to record information, the electric lines to be relocated as indicated on Civil

Drawing C-1 though C-4 are feeds to Well 4 and Well 9. It appears that the feed to Well

4 has already been relocated per the record drawing provided via this Addendum. It is unclear if the Well 9 feed has similarly been relocated. Electrical Contractor to field investigate existing circuits and relocate as necessary to accommodate proposed building location. Assume conduit for relocated circuit shall be (2) 4” PVC conduit with 3#2 and

#8 GND for power and 6#12 for controls, respectively. Provide a handhole and splice with water-proof splices at the relocation point.

Concerning the Project Manual

1. Exhibit A Frederick County Grading Permit – INSERT the attached section immediately preceding section “Exhibit A Maryland Department of the Environment Water and/or

Sewerage Construction Permit”

2. Section 11200:

a. REMOVE pages 11200-6 through 11200-10 in their entirety and REPLACE with attached pages 11200-6 through 11200-10

3. Section 264313:

10974.28 A1-2 ARRO

THURMONT – HUNTING CREEK PFAS IMPROV. (PennBid)

a. MODIFY 2.1.E.5 with the following:

“5. Modes of Protection: The SPD system shall provide surge protection in all possible modes (L-G and L-L). Each replaceable module shall provide the uncompromising ability to deliver full surge current rating per mode.”

4. Section 264313:

a. MODIFY 2.1.E.7 with the following:

“7. Protection modes and UL 1449 VPR for delta circuits with 480 V, three-phase, three-wire circuits must not exceed the following:

a. Line to Ground: 1800 V for 480 V.

b. Line to Line: 3000 V for 480 V.”

Concerning the Project Drawings

1. Drawing E-600:

a. MODIFY MCC-WH3 description to “Motor Control Center ‘MCC-WH3’ 600A, 480V, 3Φ, 3W”.

b. REMOVE Keynote #2 from drawing entirely.

c. MODIFY Circuit 103A to “1”C. 3#4, #10 GND”.

d. MODIFY PP-PFAS description to “Power Panel ‘PP-PFAS’ 125A, 480V, 3Φ, 3W, NEMA 1”.

e. REMOVE Neutral Bar in ‘PP-PFAS’.

END OF ADDENDUM NO. 1

BIDDERS MUST ACKNOWLEDGE RECEIPT OF THIS ADDENDUM IN THE SPECIFIED

PLACE ON THE BID FORM. THE ABSENCE OF THIS ACKNOWLEDGMENT WILL BE

CAUSE FOR REJECTION OF THE BID.

TOWN OF THURMONT

HUNTING CREEK PFAS IMPROVEMENTS

PRE-BID MEETING MINUTES

Monday, September 14, 2026, at 9:00 A.M.

ARRO Project No. 10974.28

PROJECT DESCRIPTION & SCOPE OF WORK

The project generally comprises the construction of a new PFAS treatment building, furnishing and installing new PFAS treatment equipment, modifications to the existing plant, site improvements, electrical and mechanical construction, and restoration of areas disturbed by construction.

BID QUESTIONS

Technical questions will be accepted until 4:00 P.M. prevailing time on Wednesday, September 23, 2026. All questions must be submitted through PennBid and will not be accepted in any other manner.

BID OPENING

Bids will be received online via the PennBid Program until 10:00 A.M., prevailing time, on October 5, 2026, at which time they will be opened. After bid opening the results will be available for viewing at the PennBid website. Successful bidder will be selected by the Owner at a later date.

COMPLETION TIME & PROJECT SCHEDULE

1. The Work will be substantially completed within 365 calendar days after the date when the Contract Times commence to run as provided in General Conditions Paragraph 2.3 as amended by the Supplementary Conditions, and completed and ready for final payment within 425 calendar days after the date when the Contract Times commence to run.

2. Liquidated Damages (LD’s) will be assessed in the amount of one thousand dollars ($1,000) per calendar day the work is not substantially completed.

REQUIRED BID SUBMITTALS

1. Completed Bid Form. The bid form is a combination of lump sum and/or unit prices with contingency items listed.

2. Bid Security Form in the form of a certified check, bank check, irrevocable letter of credit, or Bid bond (on the form included with the Bidding Documents) for five (5) percent of the Bid total.

3. It is the responsibility of the bidder to follow and adhere to all bidder requirements and instructions.

SPECIAL CONDITIONS, STAGING, ACCESS, PARKING, USE OF FACILITIES

1. Contractor shall notify, in writing, property owners (5) days prior to commencing with work, of the anticipated work schedule and times when they will experience disruption of service and construction related noise near their properties.

2. The Contractor shall keep the existing driveways and entrances serving the properties adjacent to the Project clear and available to the Owner and the public at all times.

3. If the construction work requires temporary disruption, relocation, or modification of utility services to businesses, public facilities, or residences adjacent to the Project, the Contractor shall provide temporary services by methods approved by the utility company and the Engineer.

4. The selected Contractor when necessary to dewater trenches and other excavations shall provide pumping equipment, capable of handling the flows present; provide standby equipment to protect against equipment breakdown, including but not limited to extra pumps, and power generators. Cost of such equipment shall be included in the Contract Price(s).

1. Contractor shall follow the requirements and provisions outlined in the MDE Maryland Water Quality and Drinking Water Revolving Loan Fund Program documents included in this Project Manual.

2. Contractor shall furnish and install an MDE funding sign as indicated in the MDE Contract Provision documents included in this Project Manual

SURVEYING

Contractors shall visit the site and become familiar with it prior to submitting their bid. The Contractor is responsible for project stakeout.

EXTENT OF CONSTRUCTIONS

Contractors shall confine construction activities to the limits designated on the drawings.

WORKING HOURS

A normal working day shall be defined as Monday through Friday from 7:00 A.M. to 5:00 P.M..

Any change to this schedule shall be requested in writing at least one (1) week prior.

The following restrictions, as applicable, shall be observed during all hours of Work:

1. No jackhammers, heavy equipment, or similar noise generating equipment will be used between 7:00 P.M. and 7:00 A.M. without written authorization by the Owner.

2. Contractor shall shield adjacent properties from any supplemental lighting installed to illuminate work site.

3. Contractor shall be responsible for resolution of complaints from adjacent property owners regarding disturbances resulting from Contractor's performance of work.

4. All construction operations, including after hours, shall comply with Federal, State, and local noise and public nuisance regulations.

SPECIFICATIONS

The contractor shall adhere to all specifications detailed in the project manual for Hunting Creek PFAS Improvements.

INSURANCE

The Successful Bidder will be required to carry Liability and Workers’ Compensation and other insurance in the amount and under the terms stipulated in the General Conditions and Supplementary Conditions.

L o -o E z o o r&3 r"

I

Lrn

I g b I t N

N I s f- \dr F:

F

J N., l\

N.,f J

;I

\j

\n

N)

I

\O

I a

.i il .n v

--<d c I.V a g

- -l/

I t G 0i .t s a

.e ,i

H

S a \J v( o Css

Uf< v) 6L-t t1

<r s sa

EJ

>f a e J \*fi

I t

,tJ 1A*

U

t. I\*

QJ

r q h

)ti

OJ

L

E

E t!

1-/' u Fk/\)l\< J\

I

*S\ "Jrt\-\

C (E

E o(J (J C

OJ

tt \,Q

,t> !qt;uJ't-

(-.4 . L-ru A

I e a,, TJ s $q \J s

J

Gl-€ U

\IJ

t br rE s\

VI

w

<I\+

\c Cr d.)

nt

E

\f'r o o t1 i o _eg g ,oF J t?

n e

R.

\4

U o r---i

\3Ir_r*i

OJ

E G'z o(J r o E :q C

I

P C o E

=EF

Fo C

=oF rl o oo (o o-ral

Cl rol o El 9 9l a."

ol cNLl - o 9cc'lFt oo

-l (,-l Fl s;

EI E€

Tl g * 6l =.[udo "' .=l 0J PI Lcl cLrl

EI

r ,\f

10974.28 11200-6 ARRO

THURMONT – HUNTING CREEK PFAS IMPROV. (PENNBID)

F. Design controls to operate on 120 volt, single-phase, 60 Hertz current unless otherwise specified.

G. Equipment Anchors: Provide anchors for equipment requiring such. Size anchors for embedding in concrete and sleeve anchors as recommended by equipment manufacturers. When recommendations are not provided, size anchors in the largest diameter that will pass through the bolt holes in equipment bases. Anchor lengths as indicated on Drawings.

1. Stainless Steel Anchor Bolts: ASTM A320 Grade B8, AISC Type 304.

2. Expansion Anchors: Conforming to Federal Specification FF-S-325, Group II, Type 4, Class 1 Stainless Steel; such as Hilti Kwik-Bolt, Phillips Red Head

Wedge-Anchor and Molly Parabolt, or equal.

H. Spare Parts:

1. Refer to individual specification sections for required spare parts to be provided by Contractor ((of each Contract)); spare parts shall be included in the Contract

Price.

2. Package each part individually or in sets in moisture-proof wrappings or vacuum packaging. Bulk packaging of dissimilar parts is not acceptable. Each package shall be clearly labeled to indicate the following information:

a. Name of equipment that spare part is for.

b. Spare part name.

c. Manufacturer’s part/stock number.

3. Submit, in writing, storage procedures for spare parts to provide for proper handling and protection after delivery to job site.

4. Provide a list of all equipment and tools needed to maintain and calibrate each piece of mechanical equipment.

5. The Contractor shall store all spare parts in a secure off-site location until a certificate of substantial completion is issued for the product and in the Engineer’s opinion, the spare parts can be properly stored at the project site. The Contractor shall, at the Engineer’s or Owner’s request, allow for inspection and verification that the spare parts are being properly handled and stored in accordance with the equipment manufacturer’s written instructions.

I. Cartridge Pre-Filter:

1. A cartridge style pre-filter is to be provided and installed upstream of the

PFAS filtration system. This filter is designed to remove any particulate matter in the incoming well water down to a size of 1 micron. Filter shall be constructed of Type 304 stainless steel to ASME code for pressure vessels.

The inlet and outlet shall have flanged connections. The filter shall be NSF 61 certified for use in drinking water systems. The filter shall be Harmsco

Model MUNI-3-3FL-304 or approved equal.

10974.28 11200-7 ARRO

PART 3 - EXECUTION

3.01 INSTALLATION

A. Install equipment with skilled mechanical erection labor in accordance with manufacturer’s instructions.

B. Installed equipment shall be inspected, adjusted, approved and certified satisfactory by the manufacturer.

C. Furnish the Engineer with manufacturer’s certificates regarding equipment installation prior to initial mechanical performance tests.

D. Shop Painting:

1. Prior to painting remove all rust, dust and scale as well as other foreign substances on ferrous metal surfaces to be prime painted in the shop, by sand-blasting or pickling.

a. Blast-Cleaning shall conform to requirements of the latest edition of

SSPC-SP6, Commercial Blast Cleaning.

b. Pickling shall conform to requirements of the latest edition of SSPC-SP8, Pickling, or SSPC-SP10.

2. The ferrous metal surfaces thus cleaned shall be prime painted as soon as possible after cleaning to prevent new rusting.

3. All ferrous metal surfaces of equipment, apparatus, and devices shall receive a shop coat of primer (except acceptable factory-finished surfaces) unless otherwise specified or required by the Engineer.

4. Painting:

a. Apply shop paint in accordance with SSPC-PA1.

b. Minimum dry mil thickness at 1.5 to 2 mils.

E. Field Painting: As specified previously in Painting: Section 09900.

3.02 DISINFECTION OF TREATMENT EQUIPMENT

A. Disinfection shall be in accordance with AWWA Standard C653-87 - “Disinfection of

Water Treatment Plants”.

B. Chlorine for Disinfection: The forms of chlorine may be used for the disinfecting operations are liquid chlorine, sodium hypochlorite solution, and calcium hypochlorite granules or tablets.

C. Prevention of Reverse Flow: Great care shall be exercised so that the strong chlorine solution in the areas being treated will not flow back into the water supply from which water for disinfection is being obtained.

D. Point of Disposal: The Contractor shall be responsible for disposing of the chlorinated water from the above specified items to a point of discharge approved by the Engineer

10974.28 11200-8 ARRO

and any agencies which will be affected by the discharge of the chlorinated water. The chlorinated water, when approved by the Engineer and all regulatory agencies, shall be bled at the discharge point at a rate such that the water will not be harmful or cause detrimental effects to property, persons, fish, etc. If any damage to property, persons, or fish does occur, the Contractor shall assume all damage costs at no additional expense to the Owner. If necessary, the Contractor shall neutralize all water prior to its disposal by use of sodium bisulfite or other approved methods. In the event that discharge of the chlorinated water is not permitted, the Contractor shall provide the means necessary to transport the chlorinated water to an approved disposal facility; and he shall pay all charges associated with the removal and disposal thereof.

E. Final Flushing: Following chlorination, all treated water shall be completely flushed from the above specified items until the replacement water throughout each facility, upon test, shall be proven to have a combined chlorine residual of approximately 2.0 mg/l.

1. After disinfection and during subsequent mechanical performance tests, the chlorine residual shall be maintained in all units of the plant at a concentration satisfactory to the Engineer. If the chlorine residual drops to zero (0), the

Engineer has the option to require the Contractor to redisinfect any or all units of the plant at no additional cost to the Owner.

F. Bacteriological Testing: After the chlorination procedure is completed, and before the treatment unit or facility is placed in service, at least duplicate samples shall be taken from the unit or facility not less than 30 minutes apart, and shall be tested for the presence of coliform in accordance with the latest edition of Standard Methods for the

Examination of Water and Wastewater. If none of the samples show the presence of coliform, the unit or facility may be placed in service. If any of the samples show the presence of coliform, Procedure 1 or 2, described below, shall be followed before placing the unit or facility in service.

1. Take repeat samples at least 24 hours apart until consecutive samples do not show the presence of coliform.

2. Again subject the unit or facility to chlorination and sampling as described in this standard.

3.03 FIELD QUALITY CONTROL

A. Equipment and systems start-up as specified in Section 01650.

B. Initial Operation: Upon completion of structural work as well as installation and adjustment of equipment in a manner satisfactory to the Engineer, the Contractor with his own forces, including such equipment and other experts as may be necessary

(collectively referred to as Contractor’s Personnel) shall place equipment in operation.

1. Give Engineer and Owner at least seven days written notice prior to placing equipment in operation.

2. Operating procedures during said period are subject to Engineer’s approval.

10974.28 11200-9 ARRO

3. Operation of equipment prior to satisfactory completion of Performance Tests is the Contractor’s responsibility.

4. Designate a day approved by the Engineer for commencement of the Initial

Mechanical Performance Test, utilizing water for the process flow.

5. Submit manufacturer’s certificate of approval regarding equipment installation.

C. Initial Mechanical Performance Test:

1. Contractor’s Personnel, with Engineer and the personnel of the Owner observing, shall demonstrate to the satisfaction of the Engineer the mechanical performance of each item of equipment, when operated in accordance with the design intent indicated by the Drawings and described in the applicable sections of the

Specifications.

2. If the demonstrations are satisfactory to the Engineer (or if equipment deficiencies are found, then subsequent to correction of the deficiencies by the Contractor) the

Engineer shall give the Contractor seven days written notice to conduct the Final

Mechanical Performance Test.

D. Test Interim:

1. Contractor’s Personnel, without reliance of Owner’s Personnel, shall operate and maintain the equipment in continuous, day-to-day, 24-hour operation except as otherwise approved by the Engineer until commencement of the Final Mechanical

Performance Test.

2. During this interim the Contractor’s Personnel shall instruct and train the Owner’s

Personnel in their duties.

E. Final Mechanical Performance Test: Final Mechanical Performance Test shall cover a 48-hour period while the plant is in continuous, normal operation.

1. With equipment in continuous, normal operation, the Personnel of the Owner shall assume day to day operation of the equipment under the direct supervision of the Contractor’s Personnel beginning with the Final Tests.

2. Contractor’s Personnel shall demonstrate to the satisfaction of the Engineer that equipment is coordinated and that installation complies with the applicable

Drawings and Specifications.

3. Performance Tests shall be considered concluded at the end of the forty-eight-hour period designated for the tests if the Engineer is satisfied with the test results or should deficiencies be found as a result of said test, then when the deficiencies have been corrected to the satisfaction of the Engineer.

F. Operating Costs:

1. Costs for Initial Operation and Mechanical Performance Tests: Include in the

Contract Price the following operating costs for satisfactorily completing the

Initial Mechanical Performance Tests on equipment being tested

a. Electrical power.

b. Water to provide flow for tests.

c. Lubricating grease.

d. Lubricating oils.

10974.28 11200-10 ARRO

e. Fuel oil plus refilling of storage tanks after completion of Initial Mechanical

Performance Tests.

f. Chemicals plus refilling of storage tanks after completion of Initial

Mechanical Performance Tests.

g. Such other materials or utilities not specifically identified herein, but required to conduct the Initial Mechanical Performance Tests.

3.04 PERSONEL TRAINING SESSIONS’ VIDEO RECORDING

A. Contractor shall generate a video record of all personnel training sessions for Owner’s future reference. Contractor shall submit records on two portable storage devices or

ShareFile site to Engineer. Contractor shall submit video in MP4 High-Definition format.

END OF SECTION

SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS 264313 - 1

SECTION 264313 - SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes:

1. Type 2 surge protective devices.

2. Enclosures.

3. Conductors and cables.

B. Related Requirements:

1. Section 262416 "Panelboards" for integral SPDs installed by panelboard manufacturer.

2. Section 262726 "Wiring Devices" for integral SPDs installed by receptacle manufacturer.

1.3 DEFINITIONS

A. Inominal: Nominal discharge current.

B. MCOV: Maximum continuous operating voltage.

C. Mode(s), also Modes of Protection: air of electrical connections where the VPR applies.

D. MOV: Metal-oxide varistor; an electronic component with a significant non-ohmic current-voltage characteristic.

E. NRTL: Nationally recognized testing laboratory.

F. OCPD: Overcurrent protective device.

G. SCCR: Short-circuit current rating.

H. SPD: Surge protective device.

I. Type 1 SPDs: Permanently connected SPDs intended for installation between the secondary of the service transformer and the line side of the service disconnect overcurrent device.

J. Type 2 SPDs: Permanently connected SPDs intended for installation on the load side of the service disconnect overcurrent device, including SPDs located at the branch panel.

K. VPR: Voltage protection rating.

SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS 264313 - 2

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

1. Include electrical characteristics, specialties, and accessories for SPDs.

2. NRTL certification of compliance with UL 1449.

a. Tested values for VPRs.

b. Inominal ratings.

c. MCOV, type designations.

d. OCPD requirements.

e. Manufacturer's model number.

f. System voltage.

g. Modes of protection.

1.5 INFORMATIONAL SUBMITTALS

A. Field quality-control reports.

B. Sample Warranty: For manufacturer's special warranty.

1.6 CLOSEOUT SUBMITTALS

A. Maintenance Data: For SPDs to include in maintenance manuals.

1.7 WARRANTY

A. Manufacturer's Warranty: Manufacturer agrees to repair or replace SPDs that fail in materials or workmanship within 10 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 TYPE 2 SURGE PROTECTIVE DEVICES (SPDs)

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following:

1. ABB, Electrification Products Division.

2. Eaton.

3. Schneider Electric USA, Inc.

4. Siemens Industry, Inc., Energy Management Division.

5. Approved Equal.

B. Source Limitations: Obtain devices from single source from single manufacturer.

C. Standards:

SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS 264313 - 3

1. Listed and labeled by an NRTL acceptable to authorities having jurisdiction as complying with UL 1449, Type 2.

2. Comply with UL 1283.

D. Product Options:

1. Include LED indicator lights for power and protection status.

2. Include internal thermal protection that disconnects the SPD before damaging internal suppressor components.

3. Include NEMA ICS 5, dry Form C contacts rated at 2 A and 24 V ac for remote monitoring of protection status.

4. Include surge counter.

E. Performance Criteria:

1. MCOV: Not less than 125 percent of nominal system voltage for 208Y/120 V and

120/240 V power systems, and not less than 115 percent of nominal system voltage for

480Y/277 V power systems.

2. Peak Surge Current Rating: Minimum single-pulse surge current withstand rating per phase must not be less than 100 kA. Peak surge current rating must be arithmetic sum of the ratings of individual MOVs in a given mode.

3. The SPD surge current ratings shall be based on the electrical system ampacity listed in the table below:

Electrical System Ampacity @

SPD Install Point

Surge Protection (kA)

Per Mode Per Phase

2500-6000A 300 600

1200-2000A 250 500

600-1000A 200 400

225-400A 150 300

125-225A 100 200

4. The SPD shall be rated for 480Vac 3 Phase, 3 Wire + Ground, Delta.

5. Modes of Protection: The SPD system shall provide surge protection in all possible modes

(L-G and L-L). Each replaceable module shall provide the uncompromising ability to deliver full surge current rating per mode. Modes of Protection: The SPD system shall provide surge protection in all possible modes (L-N, L-G, L-L, and N-G). Each replaceable module shall provide the uncompromising ability to deliver full surge current rating per mode.

6. SPD modules shall be configured to isolate individual suppression component failures without causing total loss of surge protection in that mode.

7. Protection modes and UL 1449 VPR for delta circuits with 480 V, three-phase, three-wire circuits must not exceed the following:

a. a. Line to Ground: 1800 V for 480 V.

b. b. Line to Line: 3000 V for 480 V.”

7. Protection modes and UL 1449 VPR for grounded wye circuits with 480Y/277 V , three-phase, four-wire circuits must not exceed the following:

a. Line to Neutral: 1200 V for 480Y/277 V .

b. Line to Ground: 1200 V for 480Y/277 V .

c. Neutral to Ground: 1200 V for 480Y/277 V .

d. Line to Line: 2000 V for 480Y/277 V .

SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS 264313 - 4

8. SCCR: Equal or exceed 100 kA.

9. Inominal Rating: 20 kA.

2.2 ENCLOSURES

A. Indoor Enclosures: NEMA 250, Type 1.

B. Outdoor Enclosures: NEMA 250, Type 4X.

2.3 CONDUCTORS AND CABLES

A. Power Wiring: Same size as SPD leads, complying with Section 260519 "Low-Voltage Electrical

Power Conductors and Cables."

PART 3 - EXECUTION

3.1 INSTALLATION

A. Comply with NECA 1.

B. Provide OCPD and disconnect for installation of SPD in accordance with UL 1449 and manufacturer's written instructions.

C. Install leads between disconnects and SPDs short, straight, twisted, and in accordance with manufacturer's written instructions. Comply with wiring methods in Section 260519 "Low-

Voltage Electrical Power Conductors and Cables."

1. Do not splice and extend SPD leads unless specifically permitted by manufacturer.

2. Do not exceed manufacturer's recommended lead length.

3. Do not bond neutral and ground.

D. Use crimped connectors and splices only. Wire nuts are unacceptable.

3.2 FIELD QUALITY CONTROL

A. Perform the following tests and inspections:

1. Compare equipment nameplate data for compliance with Drawings and the Specifications.

2. Inspect anchorage, alignment, grounding, and clearances.

3. Verify that electrical wiring installation complies with manufacturer's written installation requirements.

B. SPDs that do not pass tests and inspections will be considered defective. Replace and retest.

C. Prepare test and inspection reports.

SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS 264313 - 5

3.3 STARTUP SERVICE

A. Complete startup checks in accordance with manufacturer's written instructions.

B. Do not perform insulation-resistance tests of the distribution wiring equipment with SPDs installed. Disconnect SPDs before conducting insulation-resistance tests; reconnect them immediately after the testing is over.

C. Energize SPDs after power system has been energized, stabilized, and tested.

3.4 DEMONSTRATION

A. Train Owner's maintenance personnel to operate and maintain SPDs.

END OF SECTION 264313

PROFESSIONAL CERTIFICATION

I, Adam C. Menko, P.E.

hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 65243 Expiration Date: 07-08-2027

Frazer, Pennsylvania

(610) 407-4100 kegi.net

Keystone E N G I N E E R I N G G R O U P

THIS DRAWING IS ISSUED FOR

BIDDING