HomeMy WebLinkAboutX2022-0778 - Misc)(7,b2-2 0778'
South County Contractors
23839 ItUDCENAY-IQ8819N YFJO CA 92692
RFI #:
Submittal Date:
Response Requested By:
REQUEST FOR INFORMATION (RFI)
To: Steve Liebke (sliebke@liebke.o p)
LICENSE # 983175
001
5/12/22
5/19/22
Project: 126471 Nursing Education Trailers additional
Cc: Barry Paxson (boaxson@hbaom.com) PM: Javier Contreras (Javier@southcountycontractors.com)
Ref. Sheets:
Issue: Building electrical conductors
Schedule Impacting:
Cost Impacting:
No
No
01- The plans from the architect calls out for 4/0 but it Is underground wire. When we are running overhead
wire for 200amps we will use 2/0 and we have provided a cut sheet on the overhead wire.
Design Consultant Response:
RESPONSE:
The proposed #2/0 AL. XLPE multiflex (quadruplex) overhead secondary service ca. - with 210 amps ampacity
is acceptable. See marked up in red in the attached RYE.
Responded By: Stephen R. Zajicek - .
Client Response:
Date: 07/05/2022
Responded By:
Date:
Alcan Aluminum Multiplexed
Overhead Service Cable
Alcan Cables Multiplexed Overhead Service and Secondary Cables provide
exceptional performance and reliability. Alvan provides a full range of overhead
service and secondary cables available in constructions of one or more insulated
conductors and one bare neutral conductor. Insulation on the phase conductors
can be black low density crosslinked polyethylene (XLPE) or black high molecular
weight — low density polyethylene (PE) depending upon the application. To ensure
exceptional product quality, Alvan Multiplexed Overhead Service and Secondary
cables meet or exceed requirements ofANSI/ICEA S-76-474.
The bare neutral conductor is available as:
1. Stranded All Aluminum (AAC); ASTM — B-23I
2. Aluminum Conductor Steel Reinforced (ACSR); ASTM—B-232
3. Aluminum Alloy Conductor 6201 (AAAC); ASTM — B-399
Product Application and Features:
• Designed for use as a service drop from the power pole to the service entrance
or as a secondary cable from pole to pole.
• XLPE insulated cables are rated for 90°C operation.
• Polyethylene insulated cables are rated for 75°C operation.
This catalog is intended to provide introductory technical data
to all the correct selection of wire and cable for permanent
installation. Wireand able products supplied by Akan
comply with the codes, standards and product specifications
as indicated in this catalog. Weights and measurements are
subject to manufacturing tolerances and product design
changes. Consequently, Akan does not accept responsibility
for costs incurred by a putc6aser as a result of weights and
measurements not conforming erectly to those indicated.
Aluminum Multiplexed Overhead Service and Secondary Cables
ACSR Neutral
Code Word
SETTER..'
SHEPHERD
TERR(ER..
iiplex Overhead Service Drop Cable
PHASE CONDUCTORS
Size &
Number of
Strands
6.solid :.
8-7
7
Insulation
Thickness
(Mils)
45
45 ...
Nominal Diameter
Bare
(Mile)
• 152,.-
178
225:
O.D.
(Mile)
• 252 ;.
268
' 315....
Size &
Number
of Strands
6-6/1
• 46/1 ..
Rated
Strength
(Lbs.)
1190".
1190
• 1860.'
NOMINAL WEIGHT
(LBS. / 1000 FT.)
Stall
12.:
12
18•
Compound
PE
12.
14
18
Total
AMPACIT V
(Amps)
PE
.0
70
90
STANDARD
PACKAGE
'4O C ambient conductor temperature - 90'CXLPE, 75'C PE; am, and wind
Code Word
VDLUTA
STROMBUS
WHELK •'
PERIWINKLE
COCKLE
CONCH
JANTHINA
RAN ELLA
NERIFINA
CENIA
RUNCINA
TRITON
MIJRSIA::..:
CERAPUS
ZUZARA '
COWRY
LIMPET
PHASE CONDUCTORS
Size &
Number of
Strands
: 5-7
4-7 _
4-solid
47 • 2-7.
2-7
1/0-7
1/0-19
1/0-7 '
1/0-19
:uar
2/0-19
310719- -'-
4/0-19
4/0-19
335.4-19
336.4719 •
Insulation
Thickness
(Milal
45
45
,45
45
:45,'
45
60 '
60
60
Nominal Diameter
Bare
(Mils)
178
225
204
225
283 -:
283
357
362
•357
352
512
512
646
646..'
O.D.
(Mils)
315
264
315
•373
373
: .477
482
482
521_
526
--�8.
632
: • 632
806
806
BARE NEUTRAL
Size &
Number
of Stands
..6-6/1
6-6/1
446/1 •
4-6/1
2-6/1
. 2-6/1. .
2-6/1
3/0-W1
1J0-6/1
2/0:6/1:
Rated
Strength
ILbs.1
1190 ;,
1190
1880 :
1860
• 450
2850
2850
2850
4380
4110
' 6620 '..
5300
.835D
8350
8700
NOMINAL WEIGHT
(LBS. / 1000 FT.)
AMPACITY•
(Amps)
STANDARD
PACKAGE
•74 .
103
116
118
164 '
188
262
262
298
298
376
474
524
12
16
18
18 •
29
29
29
47.
47
59
59
74
59
93
93
50
Compound
Total
PE
28'•
35
29.
35
.45
45
.75
70
75,
70
85
78
87
97
97..
164
164
XLPE
31•
39
31
39
49
49
81
76
$1-
76
92,
84
94
106
106
178
18
PE
11.4
150
163
171
227
262
366
351
420
415
520
513
635
680
788
1091
1166
XLPE
117
154
165
175
231
266
372
367
426
421
527
519
642
689
797
1105
1180
PE
;70
90
• 90
90
115 •
115
155'
155
155
155180.
180
205
235
`23i
290
290
XLPE
85
115
115 ,.
115
950 .
150
?99
200
290
200
230
230
265
310
310
360
380
Coil
(Ft.)
1000
500
500 •
500
500
Keel
(Ft.)
2200.•
_ 1500
1700
1500
1800.
1800
1200
1200
200
1200
1500
1500
1300
1000
1000
1000
'40'C ambient conductor temperature • 90•C XLPE 75•C PE; sun and wind
Code Word
HACKNEY
PALOMINO
erekw ia.
PHASE CONDUCTORS
BARE NEUTRAL
NOMINAL WEIGHT
(LBS. / 1000 FT.)
AMPACITY•
(Amps)
STANDARD
PACKAGE
Size &
Number of
Strands
4-7
2-7
tfn-14 .
Insulation
Thickness
(Mils)
45'.225.
45
Rn -_
Nominal Diameter
Size &
Number
of Strands
....-..
2-6/1
Rated
Strength
(Lbs.)
1ZN0
2550
_ mill
Bare
(Mal)
:`
283
�'--
O D
lMilal
.....,
..315
373
P4tst6aati
957
250
" .'IQR
Steel
_ ..
1$
29
a?
Compound
Total
PE
105
.ii5
XLPE
100
135
inn
Colt
(Ft)
500,,.
•
Reel
(FL)
1700
1800
1?M •
PE
53
67
Ina
XLPE
5$
73
11i
PE
228
346
can
XLPE
352
FRR
GRULLO
2/0-19
60
406
526
..
2/0-6/1
5300
502
59
116
126
677
687
155
210
-
1500
• SUFFOLK' ' "
"3/0-19
'
60
"456',
` 576 ::
3/0-6/1 ;
1620 •
' ' 632
74
130
141
836
847
180
240
1300
STALLION
4/0-7
60
506
626
4/0-6/1
8350
798
93
163
178
1054
1069
205
280
-
1100
APPALOOSA
4/0.19 •'
60
. 512 `.
•'632
4/0-6/1 '
8350
798 •
93
146,
•159
10,17.1050
205.
280
-
1100
GELDING
336.4-19
80
646
806
4/0-6/1
8350
1151
93
246
267
1490
1511
240
330
-
1000
BRONCO
336.4-19
80.
646 .._
.. _806 '
336418/1
. 8700.
1270•
50 .
246.
267 •
1566
1587
240
330.•
-
1000
10'C ambient, conductor tamparamre - 9O'C XLPE, 75•C PE; run and wind
Note: Add/XLP to code wads to designate a cmasibked polyethylene coveting. Add /HO to code wads to designate a high density polyethylene coveting.
15June 2022
Barry Paxson
c/o Hoag Memorial Hospital Presbyterian
One Hoag Drive
Newport Beach, CA 92663
Subject: Hoag Memorial Hospital Presbyterian
Workroom Modular Trailer Installation
HVAC Noise Levet Measurement Test Results
RSA Project No. 3280522.0336
Dear Barry:
•
pa
RS ACOUSTICS INC
25031 Avenue Stanford, Suite 80
Santa Clarita, CA 91355
P: (661) 251-3965
F: (661) 310-3783
ut
rk No ebamm Tatm r Win Camases reed
r Rmme r Remise W Road
r Mad aa.ea.alag r Readmit •fle teas
Chwrq q aft r aeaa amanllnm am neon*, on*, smolt d oho epee
W aural oseekraYV. Mi ts:g/an woo q theoNatlaibnafd
Ant a tom Wm* waled b MO agnomen aaa Oronellepollolions.
Csbaetrs RdpRipske: Oinan.isasNM Ye 0e calmed as
tattolanda
t wjerS ialab pwW eeetsenqmmub u.sata:
ue1bnab11 n ale eaof OW of as mrs..ee.b aa.ar ear
meaiAee & his went %amble mN.:ome A. 4aprobletion
dean. SubbaeRea aeaeg• Wtliaa c na cpasim
Lam. ASSOCIATES. INC.
wet: 7-1-22 or Steve Liebke
In accordance with your request, we have conducted acoustical measurements of the noise levels
generated by the air conditioning units serving the two (2) new modular trailers located on the
lower campus of the Hoag hospital property. Measurements were conducted to determine if the
noise levels generated by the air conditioning equipment serving the trailers is in compliance with
the applicable noise regulations at the property line to the north of the trailers.
Acoustical measurements were conducted on 8 June 2022 between 9:45 and 10:30 a.m. at the
property line which is approximately 100' north of the new trailers. The measurement location is
approximately the midpoint up the hill between the retainer wall directly behind the trailers, and
the Sunset Park Lane service road at the top of the hill.
See marked -up site plan showing the two new modular trailers and air conditioner locations, and
location of the position used for our measurements at the property line on the following Figure 1.
NOISE STANDARDS AND PROJECT SPECIFIC CRITERIA
City of Newport Beach Noise Ordinance
10.26.025 Exterior Noise Standards
A. The following noise standards, unless specifically indicated, shall apply to all property with a
designated noise zone:
Consultants in Architectural Acoustics & Noise Control
Barry Paxson
c/o Haag Memorial Hospital Presbyterian
Page 2
Allowable Exterior Noise Level (Equivalent Noise Level, Leq)
Noise
Zone
Type of Land Use
7:00 a.m. to
10:00 p.m.
10 p.m. to
7:00 a.m.
Single-, two- or multiple -family
residential
55 dB(A)
50 dB(A)
II
Commercial
65 dB(A)
60 dB(A)
III
Residential portions of mixed -use
properties
60 dB(A)
50 dB(A)
IV
Industrial or manufacturing
70 dB(A)
70 dB(A)
If the ambient noise level exceeds the resulting standard, the ambient shall be the standard.
Project Specific Noise Level Conditions
Noise level requirements for this specific project are different than the noise ordinance stated
above and are included in the project documents in the section titled "City of Newport Beach
Notes". Note number two in this section states "Sound level shall be field measured at the adjacent
property line and shall not exceed 50 dB(A)." This note is included in the site plan on Figure 1.
The City of Newport Beach requires that noise measurements be conducted and averaged over a 15
minute period, with a sound level meter set for a slow response averaging time. The result is
termed a "15 minute Ley", (Equivalent Noise Level) and is measured and presented in A -weighted
decibels levels. By definition, a 15 minute Leg is the A -weighted sound level corresponding to a
steady-state sound level containing the same total sound energy as a time -varying signal over the
15 minute period.
TEST EQUIPMENT
Sound level measurements were conducted utilizing the following equipment which was calibrated
prior to and Immediately subsequent to the tests:
Bruel & Kjaer Type 2250 sound level meter
Bruel & Kjaer Type 4189 microphone
Bruel & Kjaer Type ZC0032 preamplifier
Larson Davis Model CAL200 acoustical calibrator
This equipment exceeds the City of Newport Beach requirements for utilizing sound measuring
equipment which meets the American National Standard's Institute 51.4-1971 for Type 2 sound
level meters.
SITE CONDITIONS AND MEASUREMENTS
During our site visit, the primary noise source was vehicular traffic on nearby Pacific Coast Highway.
There were no audible helicopter or aircraft overflights observed during our site visit.
It is our understanding that the trailers and air conditioners would only be used during the daytime
hours only and not during the nighttime hours. Ambient noise levels were measured in the daytime
during off-peak traffic hours when the noise levels from Pacific Coast Highway would be the lowest.
Barry Paxson
c/o Hoag Memorial Hospital Presbyterian
Page 3
EA
ACOUSTICAL MEAS.' REMENT POSiTION.
%NOR'S:. CASE' OR CLOSEST LOCATION kti .
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Figure 1
HOAG MEMORIAL HOSPITAL
MODULAR TRAILER SITE PLAN & ACOUSTICAL MEASUREMENT LOCATIONS
Barry Paxson
c/o Hoag Memorial Hospital Presbyterian
Page 4
The ambient noise levels at the property line with the trailer air conditioners off between the mid-
morning hours of 9:45 and 10:30 a.m., was found to be Ley - 59.0 dB(A). These ambient noise levels
already exceed the 50 dB(A) maximum noise level criteria of the requirements included in the site
plan notes.
Immediately following this test, the trailer air conditioners were turned on and verified to be
generating refrigerated air by the undersigned. Measurements were then conducted again at the
property line with both trailer air conditioners operating. Noise levels for the 15 minute
measurement period were also found to be Lc; - 59.0 dB(A). The air conditioners were inaudible at
the property line closest to the trailers.
Note: These are the same results for ambient traffic noise as was measured during our 25May21
test showing consistency in the ambient noise over time during this time of day.
CONCLUSION
Measurements determined that the measured levels are equal [1.eq-59 dB(A)) with the air
conditioners operating, or turned off. Mathematically, for there to be no increase in levels when
the air conditioners are operated, the contribution of the air conditioners must be at least 10 dB(A)
lower than the ambient measured conditions or no higher than 49 dB(A).
Noise at the property line from the trailer air conditioning operation was inaudible to the
undersigned. By calculation, we determined that the noise contribution of the air conditioners
could not be greater than 49 dB(A) which satisfy both the City of Newport Beach Noise Ordinance
and the specific requirements noted in the project drawings.
This concludes our report. Please feel free to call with any questions or comments regarding our
report or measurements.
Sincerely yours,
RS Acoustics Inc.
Robert Schmidt, Principal
C:\Users\T3810\oneDrlve- rsacoustics.com\Projects —current\Healthcare\Hoag Nurses Trailers\2O220614 Hoag Nurses Trailer PL noise.doca