Edmonds Park Apt-Sewage pump specs.pdfSeptember 22, 2014
Pressler Engineering, Inc.
18702 North Creek Parkway, Suite 213
Bothell, WA 98oll
Telephone: (425) 485-3002
Fax: (425) 4858114
Email: tpressler@pressleren.!i4.com
EDM®NDS PARK APARTMENTS
NEW SEWAGE LIFT STATI®N
TABLE OF CONTENTS
Instructions to Bidder ................................................... Page 3
Section 1. General Conditions ................................. Page 4 thru 5
Section 2. Sewage Lift Station ................................. Page G thru 13
Section 3. Electrical .................................................. Page 14 thru 17
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New Sewage Lift Station
Page 2 of 17
1, BID OPENING: Sealed bids will be received up to moo AM, Wednesday, October 1,
2014, at the office of Zack Hill, 1 730 15t Ave. S., Seattle, WA 98134, or emailed to him
at: ZaclrhPpw-cm.com with a Cc: to tpressler(a�pressleren.com
2. DRAWINGS AND SPECIFICATIONS: Invited bidders will be provided two sets of
plans and specifications for their use.
Additional sets of plans and specifications are available at:
Pressler Engineering, Inc.
18702 North Creek Parkway#213
Bothell, WA 98o11
Phone: (425) 485-3002
Contact: Thomas Pressler
3. SIGNATURE: Each Form of Proposal must be signed in longhand in the name of the
Contractor in ink by an authorized representative.
4. REJECTION OF BIDS: The Owner reserves the right to waive any informality and to
. accept or reject any bid.
5. CONTRACT: The successful bidder will be required to execute standard contract for
the work.
6. PERFORMANCE BOND AND LABOR & MATERIALS PAYMENT BOND: The
Contractor will be required to furnish to the Owner a performance bond and a labor
and material payment bond. Each bond shall be in an amount equal to l00% of the
Contract Sum and be security for the faithful performance of the Contract and the
payment of all obligations arising there under. Both the form of the Bonds and the
Surety Company issuing them shall be subject to the approval of the Owner. The cost
of such bonds shall be the obligation of the Contractor.
7. WORKING CONDITIONS: Bidders shall, by their bids, be deemed to have studied
the site, working conditions, coordination of the project, and other conditions
affecting the work. The work will be performed while the Owner continues
operations.
8. INTERPRETATIONS: Interpretations of apparent ambiguities, omissions or
discrepancies in the plans and specifications will be made only in writing by the
Engineer, to all bidders. Questions received by the Engineer after July 24, 2014
cannot be answered.
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New Sewage Lift Station
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A. CONTRACT REQUIREMENTS: Contractor's standard proposal form shall
be utilized for this work. Owner reserves the right to modify this based on
these specifications.
B. MEASUREMENTS: Before ordering any material, or doing any work, the
Contractor shall verify all measurements at the building and shall be
responsible for their correctness.
C. No extra charge or compensation will be allowed because of difference of
actual dimensions and the measurements indicated on the drawings.
D. Any difference which may be found shall be submitted to the Engineer for
consideration before proceeding with the work.
E. HANDLING AND STORING MATERIALS: Materials affected by the
weather shall be protected from damage during transportation to the site,
and protected as required on the site. Should any material be found
defective, or in any way contrary to the contract, the material, no matter in
what stage of completion may be rejected by the Engineer, and shall be
removed from the site.
F. RESPONSIBILITY FOR LOSS OR DAMAGE: Contractor shall be -
responsible for any loss of, or damage to the property of the Owner or to the
work or materials of the other Contractors or trades caused by him or his
workmen, and shall make good any loss or damage or injury without cost to
the Owner.
G. OPERATIONS AND STORAGE AREAS: All operations of the Contractor
(including storage of materials) upon premises of the Owner shall be
confined to areas authorized or approved by the Engineer. The premises
adjacent to this construction must be kept clear at all times. The Contractor
shall be liable for any all damage caused by him to such premises. The
Contractor shall hold and save the owner and his Agent, free and harmless
from liability of any nature or kind arising from any use, trespass, or
damage occasioned by his operations on premises of third persons.
H. WATER AND ELECTRICITY: The Contractor shall make all arrangements
and pay for installation and use of all temporary water and electric power
facilities as required for the construction work under this contract. At the
completion of the work, the Contractor shall remove all such temporary
facilities at his own expense.
COOPERATION: Coordinate work with building management personnel so
as not to interfere with their activities.
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J. TEMPORARY SEWAGE PUMPING: Contractor shall provide temporary
sewage pumping during repair of the existing pump station. City of
Edmonds noise ordinance prohibits the use of onsite emergency generator
for this purpose, so contractor shall relocate existing pumps into existing
manhole just upstream of the existing pump station, and keep exist
(relocated) pumps in operation during the repair work.
K. CONTRACTORS LIABILITY: Contractors shall not commence work under
this contract until he has obtained a minimum of all the insurance required
hereunder and such insurance has been approved by the Owner. Approval of
the insurance by Owner shall not relieve or decrease the liability of
contractor hereunder. The cost of all such insurance shall be the obligation
of contractor.
1. Workman's Compensation and Employer's Liability Insurance as
Required by Statute.
General Liability
$4,00o,000
General Aggregate
$2,000,000
Personal Injury
$2,000,000
Each Occurrence
$t,000,000
Excess Coverage (umbrella) on the above coverage
L. A certificate of Insurance (original and one copy) shall be furnished as proof
of coverage by Contractor.
M. HOLD. HARMLESS AGREEMENT: In addition to obtaining insurance
coverage as required by the Contract Documents above, Contractor shall
indemnify, defend, and hold Harmless Owner from and against any all
liability, demands, causes of action, or claims thereof, whether well-founded
or otherwise, person whomsoever, (including employees of Owner) or
damage to property of any person in the course of or in connection with the
operations by Contractor under the contract.
N. CONTRACTOR shall apply for and pay for all permits associated with this
work. Pressler Engineering, Inc. shall provide contractor with necessary
permit drawings if so requested for contractor's use, at cost of $50.00 per
permit set of drawings.
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New Sewage Lift Station
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A. GENERAL: Contractor shall furnish all labor, materials, equipment and
incidentals required to provide two explosion proof submersible centrifugal
sewage grinder pump(s) as specified herein.
B. OPERATION CONDITIONS: Each pump shall be rated 3.o H.P.,
230 volts, 3 phase, 6o hertz, R.P.M. The unit shall produce 120
GPM at 36 feet TDH. is ", 8o DLMFU 62.2 P
(explosion proof) or equal.
C. CONSTRUCTION: Each pump shall be of the sealed submersible type. The
pump volute, motor and seal housing shall be high quality gray cast iron.
Pumps shall have a replaceable impeller and replaceable volute wear ring.
ASTM A-4, Class 30. All external mating parts shall be machined and Buna
N Rubber O-ring sealed on a beveled edge. Gaskets shall not be acceptable.
All fasteners exposed to the pumped liquids shall be 316 stainless steel.
D. ELECTRICAL POWER CORD: Electrical power cord shall be water resistant
600V, 6o ° C, UL and/or CSA approved and applied dependent on amp draw
for size.
1. The power cable entry into the cord cap assembly shall first be made
with a compression fitting. Each individual lead shall be stripped down
to bare wire, at staggered intervals, and each strand shall be
individually separated. This area of the cord cap shall then be fitted
with an epoxy compound potting which will prevent water
contamination to gain entry even in the event of wicking or capillary
attraction.
2. The power cord leads shall then be connected to the motor leads with
extra heavy connectors having brass inserts with a screwed wire to wire
connection.
E. All components used within this pump station including the pump
controller shall have a source of supply and/or repair located within 24 hour
delivery time.
1. The stator, rotor and bearings shall be mounted in a sealed
submersible type housing. The stator windings shall have Class F
insulation (155'C, or 311'F.), and a dielectric oil filled motor, NEMA B
design (3 phase), NEMA L design (single phase).
2. The pump and motor shall be specifically designed so that they may be
operated partially dry or completely submerged in the liquid being
pumped.
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3. Stators shall be securely held in place with a removable end ring and
threaded fasteners so they may be easily removed in the field, and must
be capable of being repaired or rewound by a local motor service
station. No special tools shall be required for pump and motor
disassembly.
4. Pump shall be equipped with heat sensors. The heat sensor(s) shall be
a low resistance, bi-metal disc that is temperature sensitive. It (they)
shall be mounted directly in the stator and sized to open at 120'C, or
130'C, and automatically reset at 30-35'C, differential. The sensor
shall be connected in series with the motor starter coil so that the
starter is tripped if a heat sensor opens. The motor starter shall be
equipped with overload heaters so all normal overloads are protected
by external heater block.
G. BEARINGS AND SHAFT:
1. An upper radial bearing and a lower thrust bearing shall be required.
These shall be permanently lubricated by the dielectric oil which fills
the motor housing.
2. The shaft shall be machined from a solid 416 stainless steel and be a
design which is of large diameter with minimum overhand to reduce
shaft deflection and prolong bearing life.
H. SEALS AND SENSORS: The rotor and stator in the motor housing shall be
separated and protected from the pumped liquid by an oil filled seal housing
incorporating two type 21 carbon ceramic mechanical seals mounted in
tandem. This seal housing shall be equipped with 2 moisture sensing probes
installed between the seals, and the sensing of moisture in the deal chamber
shall be automatic, continuous, and not require the pump be stopped or
removed from the wet well.
I. IMPELLERS: Impeller shall be ASTM A-536 Ductile iron, non -overloading
design. They can either be factory or field trimmed to meet specific
performance conditions. Impellers shall be hydraulically and statically
balanced at the factory, and machined for threading on to the pump shaft.
Wear or field trimming shall not deter the factory balance.
J. GUIDE RAILS: 316 Stainless steel duplex guide rails, pre -assembled cast-
iron discharge elbow, discharge flanges, steel spacer, bracket and lift chain.
K. Provide new duplex pump control panel in NEMA 4 (locking enclosure), per
City of Edmonds #E61:
1. Pump on, off and alarm levels shall be controlled by four mercury tube
float switches or by ultrasonic level measurement of a manufacturer
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approved by the City Engineer. A fifth level control is recommended for
redundant off/low water alarm.
2. Pump controls shall alternate the run cycle time of the pumps. Each
pump shall have Hand -Off -Auto switches, and green running lights, heat
sensor, and motor winding moisture sensor alarms.
S. Provide alarms for high wet well and pump failure. Provide audible
(minimum loo -dB level), as well as visual. A battery-operated backup
power supply for the alarm system is required. The high wet well alarm
should activate when more than two-thirds of the wet well tank depth is
exceeded. Alarm silence button.
4. Pump stations shall, be provided with a red, flashing alarm lamp
mounted to be visible from the nearest public right-of-way. The red
alarm lamp shall be energized only upon high wet well level or when the
test switch is enabled.
,. Controls shall automatically restart after disruptions in power supply.
6. Pump control panel shall be a NEMA 4X cabinet and located in direct
line of sight from the pump station. The panel shall have a dedicated
circuit from the dwelling's panel board.
7. All new electrical controls shall be externally mounted on the outside of
the building near the existing pump electrical control panel. All new
pump and control panel wiring shall be completed while existing control
panel and pumps are kept in operation.
S. All electrical leads to pumps and accessories shall be installed in buried,
non-metallic conduit.
9. State electrical permit is required. This can be obtained at the State
Department of Labor & Industries.
1o. All electrical connections, conduit, etc. shall be inspected by the State
Electrical Inspector.
n. Emergency Power plug with locking cap/cover.
L. Provide H-20 load rated galvanized steel locking pump pit access door and
cover to match Hydr-O-rail system, with neoprene gaskets for liquid tight
seal.
M. TESTING:
1. Commercial testing shall be required and include the following:
a. The pump shall be visually inspected to confirm that it is built in
accordance with the specifications as to HP, voltage, phase and
hertz.
b. The motor and seal housing chambers shall be hi -potted to test for
moisture content and/or insulation defects.
c. Pump shall be allowed to run dry to check for proper rotation.
d. Discharge piping shall be attached, the pump submerged in water
and amp readings shall be taken in each leg to check for an
imbalanced stator winding. If there is a significant difference in
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readings, the stator windings shall be checked with a bridge to
determine if an unbalanced resistance exists. If so, the stator will be
replaced.
N. PUMP INSTALLATION:
1. Systems Description:
In the Hydr-O-Rail System, the pump is raised and lowered in the basin
on pipe rails. A unique, patented hydraulic sealing flange at the pump
discharge allows the pump to be connected and removed from the
discharge elbow with ease at any time without entering the wet well.
There is no need to disconnect any piping or electrical connections to
remove a pump for inspection or routine maintenance checks.
Duplex
Two pumps
Two discharge elbow/base plate assemblies
Two hydraulic scaling flanges
Four 316 stainless steel guide rails
One door & frame assembly
Electrical controls
Five level controls
2. Existing Concrete sump pit with new top section pre -cast concrete ring
as detailed on drawings. Provide a 45 degree slope where indicated
poured around the inside perimeter of the basin at the bottom to
prevent solids buildup providing the slope does not interfere with the
discharge elbow and pump locations. Before beginning the installation,
Please refer to "Installation Data," found in the Hydromatic Engineered
Catalog. Follow the Installation Drawing Data, taking into account the
location of the discharge pipe, inlet pie, controls, and the anchoring
requirements of the baseplate assembly. (All of the above concrete work
by others.)
3. Discharge/Elbow Baseplate Installation:
See "Mounting Stud Location Hydr-O-Rail System" illustration for the
proper location of the discharge elbow/baseplate assembly on the basin
bottom. All 316 stainless steel 1/2" anchor bolts into sump bottom for
pumps baseplates with 1/2" 316 ss nuts for securing, or drill holes for
expansion lag screws to secure baseplate to sump bottom (furnished by
others).
Note: ,. four anchors. :.seplates musa
be
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Before bolting the baseplates to the concrete sump, adjust the level with
the baseplate leveling bolt and locknut located in the center of the plate.
Use shims as necessary under appropriate mounting pad.
4. Discharge Piping:
Schedule 40 galvanized steel pipe ASTM A-53. Install the discharge
piping modules to the base plate discharge elbow using bolts, buts, lock
washers and gasket as required. Install the discharge piping which
typically includes a vertical run of piping, sized to mate with the
discharge elbow, a go' elbow and a horizontal run of piping sized to
mate with valve box piping or force main piping. The horizontal run of
piping usually extends through the sidewall of the basin and should be
grouted in place.
Note: If using flanged connections be certain that adequate
clearances are provided throughout for installation of bolts,
nuts, Lock washers, and gaskets.
5. Basin Cover(s):
The basin cover for the sump and valve box can either be poured
concrete or precast. If Hydromatic door and frame assemblies are used,
locate the concrete openings and respect to the discharge elbow
mounting studs per installation data. If the covers are poured, place the
door and frame assembly inside the concrete form and position per
installation data.
Note: Provide a 5/8" x 4" cavity for guide rail clearance in sump
concrete cover only.
Anchor straps are provided on the door frames to secure them to the
concrete. If precast covers are used, remove anchor straps from frame
before installing into covers. Either 3x6 ss four 3/8" anchor bolts into
the top of the precast cover or drill holes for expansion lag screws. Use
either 316 ss 3/8" nuts or 316 stainless steel bolts to secure door and
frame assembly to cover. If valves are to be inside the wet well, provide
accessways as required for the piping and valves to access piping shut-
off (see installation data for general dimensions of the accessways).
Accessways must be covered and secured with tamper -proof hardware
(by others).
6. Guide Rail Installation: If Hydromatic doors and frame are not used,
obtain suitable upper guide rail supports to locate and position the
guide rails. Check installation drawings for proper size. Insert
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intermediate side rail guides into tops of these pipes and slip pipes over
round bar on baseplate. Cut the additional lengths of galvanized pipe to
extend from intermediate guide to upper guide rail support. Remember
to allow extra length so that rail 1A411 fit over upper, intermediate, and
lower guide rail supports.
7. Exterior Piping: Install the inlet hub(s) in side of basin and install inlet
piping in hub and grout, or install inlet pipe(s) directly into basin and
grout. Install drain pipe from valve box (if required) to basin. Slope pipe
to give proper drainage to basin. Extend piping to a proper elevation
above grade (as required by plans and specification and/or local codes).
8. Pump and Sealing Flange: Assemble and Sealing Flange to the pump
discharge flange using a gasket between the two.
9. Pump Installation: Check all piping braces and supports for proper
installation and tightness. Attach one end of the lifting cable or chain to
the pump carrier and the other to a hook supplied on the inside hatch
frame. Lower pump into the sump between the two guide rails. If
clearance is not adequate to raise and lower the pump, adjust clearance
my moving rails at top end or bottom. Pump discharge flange and
hydraulic sealing flange lugs should slide over the discharge elbow
flange. Clearance between the two should be no more than 1/8". Since
the baseplate has been leveled when installed the discharge elbow and
discharge piping should be similarly Ievel, The heavy, neoprene rubber
sealing diaphragm on the pump discharge should not touch the base
discharge elbow flange when the pump is being installed or removed but
not running. Its sole purpose is to flex, due to water pressure when the
pump turns on, and form a leak -proof seal between the pump and
discharge flange, or there is actual metal -to -metal contact between the
faces, or the faces are not parallel, adjust the lower guide rail supports
to obtain the 1/8" clearance. The flexibility of the sealing diaphragm
will, in most cases, compensate for misalignment and incorrect
clearance. It should, however be checked and corrected.
1o. Float Switches: Mount the float switch mounting bracket to the door
and frame assembly using 3/8" — 316 stainless steel screws. Include a
dielectric gasket (by others) between dissimilar metals to avoid galvanic
corrosion. Allow excess float cable to loop over mounting bracket. The
sump level is controlled by Hydromatic float switch controls. The float is
held in position in the sump by a weight attached to the power cord
above the float and is adjusted for height from the surface. Simplex
systems are two controls: one for pump off, one for pump on. Duplex
systems use three controls: one at all pumps off, one set at one pump
on, and one set for both pumps on. Triplex systems use four controls:
one for all pumps off, one for lead pump on, one for lag pump on and
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one for standby pump on. Pumps alternate operation on each successive
cycle with a Hydromatic Control panel. The alarm level is usually set
above the override level so the alarm will signal only if the override level
is exceeded. However, some engineers prefer to have the alarm set
below the override level as it is possible for one pump fail and the other
to operate on the override level with the sump level never reaching the
alarm level. Do not let floats rest against basin wall or bottom, or
entangle with each other or pump(s).
11. Control Panel Mounted Remote from Basin: Install coupling through
basin wall. Screw protective bushing form inside basin into coupling (all
furnished by others). Make connections outside the station using
wiring, conduit seals (potted) and conduit to remotely located Control
Panel (conduit and seals not furnished). Insert the power and sensor
cords through the coupling provided with bushing. Grout in coupling
going through sump wall (by others). When installing pump power
cords make certain that cords do not rub against pump or on bottom of
basin. Shorten cords to suit the installation.
12. Electrical Connection: Make all the connections in compliance with
N.E.C. and/or local codes. Connect the control panel ground wire to a
good ground. Ground wire must be grounded properly per N.E.C.
and/or local codes. All electrical connections are to be made by qualified
electricians.
O. Hydrostatic Pressure Test (Existing Force Main)
1. Hydrostatically test existing sewer force main pipe. Prior to the
hydrostatic test, flush this line.
2. Test existing force main under a hydrostatic pressure equal (approx.
Test pressure of 52 psig). Four times their normal max. operating
pressure.
3. Test section should not normally exceed 1,5oo-feet.
4. Accomplish the test by pumping the existing force main up to the
required pressure, stopping the pump for 15 -minutes, and then
pumping the main up to the test pressure again. During the test,
observe the section being tested to detect any visible leakage. Use a
clean container for holding water to pump up pressure on the tested
main.
,. Accurately determine the quantity of water required to restore the
pressure by pumping through a positive displacement water meter.
Determine the acceptability of the test as follows:
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6. The quantity of water lost from the main must not exceed the number of
gallons per hour as determined by the formula below.
L = SD4P
266,400
Where,
L = allowable leakage, gallons per hour
S = gross length of pipe tested, feet
D = nominal diameter of the pipe in inches
P = average test pressure during the leakage test (psi)
7. No appreciable or abrupt loss in pressure must occur the 15 -minute test
period. Pressure gauges used in the test must have certifications of
accuracy from a testing laboratory approved by the engineer. Correct
any visible leakage detected regardless of the allowable leakage specified
above. Should the tested section fail to meet the pressure test
successfully as specified, the testing entity must locate the leakage,
repair the defect, and retest the pipeline until satisfactory results for
allowable leakage.
P. WARRANTY: The pump unit or any part thereof shall be warranted against
defects in material or workmanship within one year from date of installation
or 18 months from date of manufacture, whichever comes first, and shall be
replaced at no charge with a new or remanufactured part, F.O.B. factory or
authorized warranty service station. The warranty shall not assume
responsibility for removal, reinstallation or freight, not shall it assume
responsibility of incidental damages resulting from the failure of the pump
to perform. The warranty shall not apply to damage resulting from accident,
alteration, design, misuse or abuse.
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A. GENERAL CONDITIONS:
1. Refer to Section 1 for General Conditions governing the portion of the
contract herein.
2. Intent of specifications and drawings: Specifications and drawings
shall complement each other what is specified, scheduled or
mentioned by one shall be binding as if called for by both. It is the
intent of specifications and drawings to specify nature, quantity and
quality of the Electrical Work.
B. SCOPE OF WORK:
Provide all articles, materials, operation, services and equipment
listed, mentioned or scheduled herein or on drawings including all
labor, materials, taxes, fees, insurance and incidentals required for
their completion.
2. In general, provide all electrical work for demolition of existing
sewage lift station, and installation of new sewage lift stations,
including:
1. Removal of conduits, wire, boxes, equipment not used in the final
design.
2. Power wiring for new lift station equipment.
3. Temporary power and control wiring and raceways to keep
existing lift station in operation during construction.
4. Mounting and wiring of new junction boxes and all associated
power wiring.
,. Wiring Conduits and boxes for associated new control wiring, to
new lift station and new control panel.
b. Refer to Section 2, paragraph for additional instructions.
7. Note: Electrical work inside the existing wet wall shall be
Division 2, Class I, Group D per NEC and NFPA 820.
3. Obtain and pay for electrical permits, arrange for periodic inspection
by local authorities and deliver certificate of final inspection to
Engineer.
4. Maintain at project site a copy of drawings to record daily any
additions or changes. After final inspection two (2) copies of "as -built"
drawings shall be prepared from the site copy and shall be turned over
to the Engineer.
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5. Test complete installation.
6. Installation shall be complete in every detail as specified and ready for
use. Any item supplied by contractor developing defects of design,
construction or quality within one year of final acceptance by Engineer
be replaced at no additional cost to Owner by such new materials,
apparatus or parts to make such a defective portion of complete
system conform to true intent and meaning of these drawings and
specifications.
C. WORK BY OTHERS: During bidding and construction, coordinate work
with the utilities and other trades to avoid omissions and overlapping
responsibilities. Notify all other trades and suppliers concerning the project
voltages and identification of existing equipment when new work must be
compatible with existing conditions.
D. RULES AND REGULATIONS: Comply with local ordinances; requirements
of State Fire Marshal, National Electric Code, National Electrical Safety
Code; applicable regulations of the National Board of Fire Underwriters,
Specifications of ASA, NEMA, EEI, and IPGEA, regulations of Building
Department, City and County of Honolulu and Government.
E. MATERIALS AND WORKMANSHIP:
1. Material shall be new and those items listed by the Underwriter's
Laboratories hall bear "UL" labels of approval.
2. Workmanship shall be subject to the approval of Engineer who shall
be afforded every opportunity to determine skill and competency.
F. MATERIALS — WIRING:
1. Conduits: PVC non-metallic 3/4" minimum, round bore electrical
conduit and used with threaded fittings. Manufacture and install in
accordance with NEC. Aluminum conduits shall not be used.
2. Flexible Conduit: Liquid tight flexible steel, zinc -coated, jacketed
with high density polyethylene, and used with factory approved
fittings.
3. Gutters: Fabricate from NEC code gauge steel, square or rectangular
cross-section, galvanized, prime painted, and enamel finished.
4. Wires: boo volts, #12 AWG minimum, copper, THWN insulation.
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G. MATERIALS:
Sockets: According to NEMA, PUESR specifications and Utility
Company requirements, Gray enamel finished steel enclosure.
H. CONSTRUCTION METHODS: Conform to construction practices as
recommended by the American Electrician Handbook by Croft (latest
edition), Edison Electric Institute, REA, and applicable instructions of
manufacturers of equipment and material supplied for this project. Provide
explosion proof construction inside sewage lift station pipe.
1. Conduits:
a. All conduits non-metallic PVC.
b. Cut square with saw and ream.
C. Long radius PVC bends. No flattened or crushed conduit; form
and place so that boxes can be positioned exactly flush and
plumb.
d. No running thread; apply sealing compound at couplings.
e. Bushing and two locknuts at connection to boxes and
enclosures.
f. Seal against water entry during construction. Risers must be
closed, except when pulling conductors. Use turned wood
plugs where water under pressure might occur.
g. Exposed conduit run to be snug, parallel and/or perpendicular
to architectural and structural elements.
h. Conduits up to 1" on ceiling, suspended with galvanized steel
pipe straps or #10 galvanized steel wire hangers 5" on centers.
Anchor to structure with insert, expansion shield, clamp, or
bolt.
i. Conduits in or below ground floor slap painted with asphalt
base compound for corrosion jacket.
j. Explosion proof inside Sanitary Sump Pit.
2. Cut. Drill and Patch as Required to Install Electrical System:
a. Repair surface damaged or marred by notching, drilling or any
other process necessary for installation of electrical work.
b. Cutting, repairs and refinishing subject to approval of the
Engineer.
S. Miscellaneous Details:
a. Provide necessary foundation, supports, backing, etc., for all
raceways and equipment.
b. Attachment to wood by wood or lag screws.
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C. Attachment to concrete by expansion anchors. Powder -charge
driven studs and anchors by approval only.
d. Clean all surfaces of enclosures and equipment.
e. Close all unused knock out holes.
f. Provide nameplates for all feeder breakers and switches.
4. Painting:
a. All exposed raceways to be wiped clean of dirt, oil, grease, etc.,
with rag and solvent. Primed and finished to match
surrounding finish. Factory -finished enclosures not to be
painted.
5. Wiring for new sewage lift station:
a. Provide power and control wiring for new sewage lift stations.
Capacity of wiring and devices shall be as required for the
equipment provided. Provide flexible conduit connections for
all final runs to motors.
b. Provide permanent, locking three phase plug for connection to
portable emergency power source. Provide manual by --pass
switch so all of panel controls still work on emergency power.
6. Grounding: Service, motors, enclosures, raceways and electrical
e ui ment grounded according to requirements of National Electrical
Code.
7. Testing
a. Wiring tested to insure proper operation according to
functions specified herein, on drawings and other sections of
these specifications.
b. Insulation resistance of wire according to requirements of
National Electrical Code. Feeder cable (#4 or larger),
insulation resistance, 1.5 megohms or higher. Insulation
resistance measured by Soo volts megger, Biddle Co., or equal.
Proper operation of electrical devices demonstrated at request
of Engineer during final inspection.
END OF SECTION
Edmonds Park Apartments
New Sewage Lift Station
Page 17 of 17