HomeMy WebLinkAbout2734 LOKER AVE W; G; CB920599; Permit• 4. •
- •., -. _-_. _, -- ... - I - * -
- 'BU IL D-I-N G PER M•I T . Permit No: CB920599
06/29/92 08 12 4 ".Project,,No A9000402
Page -1 of r - : Development No:',
Job Address: 2734 LOKER AV.WEST- Suite: G, .
Permit Type: ELECTRICAL , 5 , , --8269 06/29/92 0001 01 02
Parcel No 209-081-24-00- Lot# . C-PRHT 6000
Valuation 0, Construction Type NEW
Occupand Group: B2, . .Referènce#:' Status ISS3JED
Description 100 AMP, 3 PHASE FORCAB SHOP Applied 06/22/92
.%. ; -• • Apr/issue L06/29/92
Validated By CD
Appl/Ownr:. HCH PARTNERS Y - - 619278-5750 . -.
4877 VIEW.-RIDGE'AVENUE -
SAN.DIEGO,CA,9212---.. - •
Plan Check Number' CB
CONTRACTOR PROGRESSI/EL 4698 619-741-1593
590 AUGUS, - PR
SAN.MARC 5 CA 6 •• I
e'e s* 'Required
___ A_!_!\
Adjstment: ' 0 00
ELEdTRICAL TOTAL 0 60.00
INCORP ORATED
1952
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'I 6PPR-0VAL -
* . 4 -• iNSP. 4L\' \ • DATE
NCE1_/712lL
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... • - - -: . • •• •'
- -- , CITY.: OF CARLSBAD •-. • -• •
- - - 2075 Las Palmas Dr., Carlsbad,CA 920097 (619) 43871161 -.
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- S J, ,• - •- - 4 .- - CITY OF •- C-ARLSBAD .
INSPECTIONREQUEST
.-PERNIT# CB920599. -'FOR.07/l6/92, .. INSPECTORAREAMP -4 -
DESCRIPTION 100 AMP, 3 PHASE FOR CAB SHOP PLNCK# CB890932
OCCGRPB2
TYPE:ELEC 0 - . S
-CONSTR. TYPE NEW
JOB ADDRESS: 2734 LOKER AVWEST - STR:**'FL:**** STE: •G
APPLICANT HCH PARTNERS PHONE 619 278-5750
CONTRACTOR PROGRESSIVE ELECTRIC, PHONE 619-741-1593
OWNER PHONE
'REMARKS MH/TRAVIS/931-1130 INSPECTOR
SPECIAL INSTRUCT
TOTAL TIME
/ -. . - . '
/
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--RELATED', PERMITS-, PERNIT#- ' ,TYPE STATUS 4
5E900037 SWOW '-.ISSUED
SE900039 SWOW "ISSUED)-
.
4 • AS.920031 ASTI .ISSUED -. -i.- •.--.
CD LVL DESCRIPTION 'ACT COMMENTS
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4 S. - •• . • 44 - * - 4
39 EL Final Electrical . - 5 ;•- •
39¼ EL Final Electrical
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DATE DESCRIPTION 4 ACT INSP / COMMENTS
070792 Final Electrical CO MP
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NOTICE" CITY OFcARLSBAD 438-3550
BUILDING DEPARTMENT 2075 LAS PALMAS DRIVE,,-
DATE TIME________________
LOCATION,
- - PERMIT
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FOR INSPECTION CALL 4383101: RE-INSPECTION FEE DUE? YES
FOR FUF1HER IFORMATION, CONTACT- -_-
••PHONE
BUILDING INSPECTOR. - CODE ENFORCEMENT OFFICER,
1
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LOVE - IS EX IS
At-l- GE7A,0 XSTiN& USEb 1s 60010 14 1C R1TiMe, Ti S. - S (YETEf
ALL /nCJt Crrs• WILL tE INsmLLD osv w S
IN IThL Fl-ex OR. EMT WITH V W ' 0 EX I.ST!N&, Eft1PT
COPPER CoNDvcTOfS 3 oR MCC18IET. 160A ,.yi" EMT IETEI. U, 1-H E7 SERVICE 19 RFI11 i aOOO AMPSO w/3 4/ )(H)twliL S
TIERE /RE 3—/00/t (nET5S " '• ® /YEW PROPOSE t)ISTI
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t,€ LOAD IS LESS TRAiL? 300/),
1VE K Ir-W S fY, ETER
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PNL SYMEWY SHOP
VOLTS: 230 DELTA::.
AMPS: 100 . .
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PHASE: 3,3W . .,..
MAIN: 100A. S
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C A HT P .. C A HT P S. . .. I. T AR .0 I T AR 0 . .
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C S E P E DESCRIPTION_. C S E P .E DESCRIPTION .
1 SPACE 2 3360 1 40 2 SURYACER
3 . SPACE . 4 33601 40 2 SURFACER ..
5 1800 1 20 2 JOINTER . 6 .2040 1 .30 2 TABLE SAW
7 180.0 1 20 2 NTER .. 8 .2040 1 30 2 TABU SAW
9 .3600 1 40 2 SHPER • 10 . . • . .5
11 3600 1 •4 2 SH'APER 12 . S S. ••
13 • .14 .. . : • 15 . S 15• . S .
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19 20
PHASE A WATTS 7200 PrASF A AIIPS 60 00 PHASE B WATTS .. 6960 PHASE 'B AMPS
PHASE C WA'11S . 7440 PHASE C 'AMPS 55
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City of Carlsbad
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•' Crossróa Colleen Balch I .
A Fire Prevention Officer Carlsbad (619) 931-2127
2560 Orion .Way
• Carlsbad, California 92008 Telefax (619) 931-8473
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June 3, 1992
t:
-'Attached is controversial woodworking establishment that I have been
- discussing with Kurt Kurt says H, owner says B2 and will ... be
01
- * contacting you Kurt suggests you talk to him before you respond —--
towoodshop Owner (whose name Ithink is Marshall) -
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CITY, OF CARLSBAD
APPOV
Li C4
Fire Dept.
Date- 1)
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-4
--
-
- -
oILLon
- CONSULTING
ENGINEERS
INCORPORATED
4 June i992.
-
Mark Johnson -
1635 BasswOod Avenue -.
- Carlsbad, CA 92008
RE: - Symmetry .• '•'
- - - :2734Loke-r-AvenueWest '
- Suite - -
Carlsbad, CA -92008
SUB: Occupancy Classification Based on Dust
Control Measures to Within the Limits' ---- -:
of- Table 9-A
Dear Mr. Johnson, - -
At your request, I have,examined the proposed installation and
use at the facility referenced above in order to assess the level.
of hazard presented, determine what mitigating measures are
necessary and reasonable in light of the planned operations,
and to recommend an appropriate occupancy group and.division
classification.
Descriptions of Facility •-
The facility is an approximately 1200 square foot, one story,
light industrial tenant space within a multitenant building.'
Interior' height is appioximately 16 -f eet.' 'The construction,
is Type V-N, fully sprinklered for' Extra Hazard, Group 1
under the 1988 UBC.
-
The -use of the facility is primarily for Lthe construction
of custom cabinetry for .installation elsewhere. There is
a 102 square foot office area, 120 square foot display' area, '
and' 42 square foot restroom in the.-front-of the facility.
- The remaining area is 936 square feet for wood working
- operations.,
1165 East San Antonio Drive •' Suite D • Long Beach, California 90807 • Tel (213) 422-2205 • Fax (213) 422-0054
Page Two;
Mark Johnson
4 June 1992
The machines and their operations are open to the space
-as opposed-to contained `within an enclosure and hence
afford negligible, chance of producing a local, primary
dust explosion. These machines are:
:Llablesaw -
Jointer ,
Shaper
Cut-off saw
Bandsaw
Drill pres,s
- - These types ofm-achines produce primarily' Ohips', curls' and
swerf The du'st content of the waste residual is typically
between 2% and 5%tmacimurnof 'the total weight. •There is. no
automated- sanding machinery. What 1iti1é sanding that may
occur will-be by hand.--
Description-of Hazard
The properties of, sawdust are dependent on type of wood,
moisture content,' and -type-of process generating the dust.
- Four sets of data are used in the discussion; "Explosibility
Tests for Industrial Dusts"-(Rafferty, 1968), "Explosibility
'of Dusts Used in the Plastics Industry" (Jacobson, Nagy, Cooper,
1962), "Fuel" (Cohen & Luft, 1955) and "Combustion and Flame"
-
(Palmer 1957). •' - - - - - - - - -
- The first'task is to rank the hazard. Using the explosion
severity .equat'ion. of the ,U.S. Bureau of Mines: -
Explosion.Severit (max. exp. press.) (max rate press rise)
- -
- (max. ox-p. press.) (max --rate press rise) Pitt.Coal -
- - - =('97)(2000) - - - -
-- -
-
'90)(2300) Pitt.- Coal - - -
- - -- =0.94 - - --
--
-
- Since 0.94 is between 0.5 and 1, the relative hazard rank
is similar to Pittsburgh Coal Dust or "moderate". - -
-Next -is to, determine maximum .pressure developed within space
,should a hiformu1y sustained dust cloud develop and ignite. --
Using the -"cubic law"-. - - - -
- - - - - -
- - - -- - - - -- OILLon
./I
- -: - — - - I Page Five - -
- Mark Johnson - - - -
- 4 June ]i'992
- - - . - - .5- ._ - - . - - - - - -. -
-.4- - .. 4_• . 5- - -
-In other words, if --you justlosé sight of your hand at the end of •
your -outstretched arm (approx. 20 ,in. ) , then the coricentrationof4 -
sawdust is still less 4-bhan1/2'that required for a dust exploson
The Table9-A l..Lmit o. lb/l000fL3 ould indicate -
.4.4
-(1-4976)/(iOOO) -=. 15lbsdust in the air is the maximum-
- allowable amount for aB-2 classification 15 lbs s.the euivalent
- of (15/12)/0 05= 25 f3 or the 1/2 explosive concentrL..on - - -
mentionedabove -• -
- . --4 - 44 - - - - - - - .- • S - --. --a
It is not reasonable to suppose that-' a dust explosion otentiál
can exist unless hoüèkeeping.-is completely- abandoned- or substantial
.. sawdust. ---L*-sstored within the -building.= - -
-
-
- . - .'a• 4- s - - - - * .- A - - .
-- As a closing note on this analysis, it.woldThppear that the-only '
- A. significant hazard-that could -edst undethe conditldns ou1d -
be introdudbr'-I-i'e istallation of a dust collection system
where internal conentrationscould approach 0 002 lbs/ft3 or
- --- Lhe storage of-sawdust with11n the buldg
a a.-
Conclusions -- .- - - -'- -, - -
- ..4 ,- * * .4 •* . - 4
-.....The operations within the fac1ity-based upon the current - -,
- operat.ons and equipment do 'Rot present d'-dust explosion hazard -
-
-orfre hãzaid geater than-that normally assoZiatedwith a
_B-2 use providecfthali '--i -
— - a -
- - :-- - - -
1 Housekeeping-is roiitinely.,done in order ,,t6-k'ee'p
'.. the sawdut layer -be1ow.an--average of 7/64
2 Sawdust is.dis'poed of outside the facility at -
.
. - - the end -.of éah--day;- -;,. . ..... - _$- -
- 3•, Equipmentandoperations remain essentially as ---v -
they are currntlyproposed,
-- -
- -----: - .A 'listed,-1etion. s?stervor
adequdte "shop s.rac" is attá4-chedto equpment- -
-
- -while operating- —i
5 - Smokngis not permittea -in-the-shop -area
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EXHIBIT A
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EXHIBIT
DUST BOY INC.
HEAVY DUTY
DUST - CHIP = WASTE
1 .• COLLECTORS
1-2 hp Dust Collectors.
Portable— Stationary
'American Made
'High Efficiency
/ •Cast Aluminum Blowers
FREIGHT IS PRE-PAID ON ALL UNITS.
:OURUNIT STANDS: 5' DIAMETER 24"
.,:rHIS IS A PICTURE OF A
COMPLETE UNIT. A KIT. INCLUDES ALL
EXCEPT DRUM.
T.E.F.C.
Totally Enclosed Fan Cooled
'Extremely Quiet
05 Year Warranty
WE SHIP FAST!
MOST ORDERS CO SAME DAY!
S,uuiie IIIIatItitit's una he limited
Dust. Boy collection systems are designed to re-
move DUST, GRIT, CHIPS, and WASTE Materials
at their source. Common applications Include:
Grinding Plastic Processing
'Polishing s' Aabràslve Blast Cabinet
Buffing Paper & Corrugated Box Mfg.
:Woodworking Tobacco Processing
Abrasive Belt Finishing Cloth Cuthng'Rooms
Finishing . -Tablet Presses
Blending & Mixing . MOnumeant & Stone Carving
Clean Air. Source .. General Shop Clean-Up
Vacuum Source ,
-, HOW IT -WORKS:
Dirty air is drawn into the collector and directed
along the sidewall of the container creating a
'CYCLONE effect Heavy particles are deposited
in the bottom, of the container and lighter particles
are caried to the attached fitter bag where they are
trapped.
ADVANTAGES OF A DUST BOY SYSTEM
.. LOW PURCHASE PRICE - The low cost pet unit
makesthe Dust Boy an economical alternative In
dust and chip collection systems.
CLEANER and SAFER WORK AREA
Industrial studies have shown a direct relation-
ship between' cleaner/safer working conditions
and INCREASED WORKER' PRODUCTIVITY
and LOWER PLANT MAINTENANCE.
• LONG LIFE Heavy construction and slmphclty -
-of design means-that the Dust Boy will operate
many,years with only occaslonalroutine mainte-
nance.
EASY INSTALLATION - The Dust Boy is pre-
assembled and includes a 55 gallon plastic drum.
NO HEAT OR A/C LOSSES -The Dust Boy re-
circulates clean air within the building.
STANDARD PACKAGE:
115/208Volt Single Phase Motor.
Single Phase Motor includes pre-wired 6 ft. three
conductor cord with plug.
* ' '
- Reinforced: 'Hoses -
Dust Bag
. 55 Gallon Coilection Container
ACCESSORIES:
WYE Fittings' '
4-Wheel Drum Doilie
Reducers '
Extra Hose Sections
Hose Clamps ,
Blast Gates ,
CONSTRUCTION
BLOWER ASSEMBLY - Heavy duty, cast 'alumi-
num housing and radial wheel.
MOTOR - Totally enclosed/ran cooled, continuous
duty, permanently lubricated, ball bearing' motors
are. standard.
CONTAINER - 55 gallon Plastic Drum Only
SPECIFICATIONS
Cat. Na. HP RPM CFM Velocity Hose
1002
,
1 3450 ' 750 5000 : 6-
1004 2, 3450 1100 5100 6'
IN
L DUST BOY INC.
R. 2 Box 269C
Milan, Indiana 47031 j
(800)232-3878
In Indiana [8121654-2918.
S S • **
S • S
(1) HORSE POWER KIT ...(419oo) (2) HORSE POWER KIT 449.00)
(1-) .HORSE POWER -COMPLETE ... (449.O0) (2) HORSB POWER COMPLETE. .(479.OQ )
M'• t**************•*.********* *********** * s.f
444 ( BLAST GATES ) (Y) FITTINGS
444
6 inch (14.00) 6X6X6 (14.00)
5 inch.... (14.00) 6X5X5. . . . (14.00) 44'
4 inch (1 2. 50) 6X4X4 (13.00)-
444
3. inch.... (12.50) 6X3X3.... (13.00)
:
S
( HOSE '5 Pt. SECTIONS ) ( HOSE 15 Ft SECTIONS )
3 inch....(12.00) 5 3 inch....(22..50)
4444 inch ....(12.QO) S 4 inch .... (22.50) •
5 inch ....(14,00) 5
•S inch, .... (27.00)
6 inch.' ... (16.QO) 6 inch....(30.00)
.44'
444
449 (DUSTBAS •) C HOSE CLAMPS
• STANDARD-BAG..-.(25.00r) 6inch ... (2.0O) S
.
BARREL-BAG ..... (50.00) •. 5 •4. inch ... (2.O0) .. 44'
40
444 ( AIR GUIDE ( BARREL ADAPTER ) 444
....(6.95) 44'
444 . • -
444
•
RgDUCE.RS DRUM DOLLIES 444
444
44C 6X4' • ..(12.O0) 55 gal!
6X5............(12.00). 444
40 44
444
444 5X4. • .. . ..(12.00) - 444
444
.5
5 • S
444••
4445 5 -
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S • 444
44( • S •
'-. - EXHIBIT C
-. DRAFT
Memorandum of Understanding
between
-
,
Mark Johnson dba Symmetry .:
2734 Locker Avenue West
Suite
Carlsbad, CA 92008
and
The City of Carlsbad .
Wheras Symmetry wishes to operate a cabinet construction
shop under. the less restrictive conditions of a Group B,.
Division 2 Occupancy, and
wheas the City of Carlsbad, having examined the proposed
operation and the analyses presented by Dillon Consulting
Engineers, Inc. has determined that a B-2 classi:fication
is reasonable;-
therefore Symmetry agrees that it will
Prohibit smoking within the shop area and so post it
in a conspicuous manner;
Maintain housekeeping in such a manner as to have not
more than 1.31 -ft3 (.10 gal.). of sawdust accumulation
in any continous area of 144 square feet (12x12) and
-- - that the average- depth of such accumulations shall be
- no more than 7/64 of an inch; - - -
Dispose of all sawdust in an approved outdoor location
- and-container at least once each day leaving no storage •,
of sawdust indoors overnight, and
Install a self contained, factory built, and U L labeled
dust collection system serving the dust producing equipment,
such system to be approved by the City of Carsbad and not
- to be-Used to store sawdust inside-the facility overnight.
In consideration of the'abovel Srdmet±y acknowledges and agrees that
upon notification by an authorized fire -insector for the City of
Carlsbad that any of the conditions above-are being violated such..-
inspector may order operations ceased and-the facility closed, -
whereupon Symmetry will voluntarily cease operating at once, abate
- any immediate hazard as required, and keep closed the facilityuntil
such time as it has been upradedin all reasonable- respects to 'a
Group H-, Division 2 -Occupancy. - - -
In agreement hereto
for Symmetry - - - - for the City of-Carlsbad
- - Title - - - -- - - .---
-Date ---- _-•.-- - - - '-, --