ALUMINIUM & IT's ALLOY WIRE ROD, ALUMINIUM INGOTS, ALUMINIUM CONDUCTORS AAC ...

149 Pages·2013·14.67 MB·English

Mfrs & Exporters of :-
ALUMINIUM & IT’s ALLOY WIRE ROD, ALUMINIUM INGOTS, ALUMINIUM CONDUCTORS
AAC, ACSR, AAAC, ACAR, AACSR,AL-59, AB CABLES & BARE/INSULATEDALUMINIUM WIRE& STRIP
INDEX
CONDUCTORS
Company Profile ............................................................................................................................... 03
Conversion Factors & Formulae ....................................................................................................... 10
Various Types of Conductors ........................................................................................................... 13
Manufacturing Process of AAAC & ACSR ........................................................................................ 15
Comparison of AAAC & ACSR.......................................................................................................... 20
Technical Data & Information about Conductors ............................................................................. 29
Configuration drawings for AAC, AAAC & ACSR ............................................................................. 53
Various Indian Standards ................................................................................................................. 58
Various International Standards ...................................................................................................... 83
Technical Specification of Aerial Bunched Cable ........................................................................... 123
Technical Specification of Aluminium Wire Rod.. ............................................................................ 141
Instructions of Cable Drum Handling……………….......................................................................... 145
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Quality Policy
KJV Alloy Conductor Pvt. Ltd. Is committed to a quality system of continuous improvement for use the
manufacturing of Aluminium wire products. It is our policy to develop, produce and deliver products and
services which consistently meet our customers needs.
ABOUT US
KJV Alloy Conductors Pvt. Ltd. started its operation with
manufacturing AAC, ACSR, Bare Aluminium Wire & Strips,
Bare Aluminium Alloy Wire in the year 1989. Subsequently
the product range was expanded to include AAAC & DPC
Wire 7 Strips. These conductors are employed for HT & LT
Distribution & Transmission lines. Company has catered to
the requirements of major Thermal Power Stations & Power
Transmission & Distribution Authorities in INDIA as well as
Abroad. Our products cover entire Range of Voltage
Distribution & Transmission Lines Suitable upto 500 kV. We
are ISO 9001:2008 certified company. In year 2009 we have
started one more unit in Boregaon, Madhya Pradesh 65 kms
from Nagpur where we have gone for backward integration,
we have started Aluminium continuous casting rolling mill
with capacity of 1500 MT per month.
Total Production Capacity :
Conductors – 2400 MT per annum.
Aluminium Wire Rod – 75000 MT per annum.
Manufacturing Facility for :
(cid:1) AAC Conductors
(cid:1) ACSR Conductors
(cid:1) AAAC Conductors
(cid:1) ACAR Conductors
(cid:1) AACSR Conductors
(cid:1) AL-59 Conductors
(cid:1) Aerial Bunched Cable
(cid:1) Bare / Insulated Aluminium Wire & Strip.
(cid:1) Aluminium Wire Rod.
Standards
We manufacture products conforming to BIS (Bureau of Indian Standards), BS (British Standards), DIN (German
Industrial Standard), ASTM (American Society for Testing & Materials), IEC (International Electrotechnical
Commission), JIS (Japanese Industrial Standard), AS (Australian Standard), KS (Korean Standard) & MS (Malaysian
Standard). We have IS 398 (Part1, 2, 4 & 5) license. We can also design the conductors economically meeting 100%
of Customers requirement.
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Quality Highlights
• Implemented the Quality Management System as per the ISO 9001:2008
• ISO 9001:2008 certified for Manufacturing and Marketing of Distribution - Transmission Conductors & Aerial Bunched Cables
• Amongst the first to be accorded B.I.S. Mark and establish commercial production for Alloy Conductors in India with
indigenously developed technology
Major Approvals & Registrations
Major Electricity Boards (Generation,Transmission &
Distribution Companies) of India:
(cid:2)
MSETCL (MAHARASHTRA) (cid:2)
KPTCL (KARNATAKA)
MSEDCL
GESCOM
(cid:2)
GETCO (GUJRAT)
BESCOM
DGVCL
CESC
MGVCL
HESCOM
UGVCL
MESCOM
(cid:2)
APTRANSCO (ANDHRA PRADESH) (cid:2)
OPTCL (ORISSA)
APCPDCL (cid:2)
TNEB (TAMIL NADU)
APEPDCL (cid:2)
ASEB (ASSAM)
APSPDCL (cid:2)
JSEB (JHARKHAND)
APNPDCL
(cid:2)
(cid:2) KSEB (KERALA)
CSPDCL (CHATTISHGARH)
(cid:2)
(cid:2) UPPCL (UTTAR PRADESH)
MPTRANSCO (MADHYA PRADESH)
(cid:2)
PuVVVNL
MPPKVVCL
(cid:2)
DVVNL
MPMKVVCL
(cid:2)
MVVNL
(cid:2)
PVVNL
Coal Mines:
Other Consumers:
(cid:2)
WCL(Western Coalfields) (cid:2)
MIDC(Maharashtra Industrial Development
(cid:2)
ECL (Eastern Coalfields)
Corporation),
(cid:2)
CCL (Central Coalfields) (cid:2)
CESS (Cooperative Electric Supply Society),
(cid:2)
MCL (Mahanadi Coalfields) (cid:2)
MOIL (Manganese Ore India Ltd.)
(cid:2)
SCCL (Singreni Collieries)
(cid:2)
SECL (South Eastern Coalfields) Turnkey Contractors:
(cid:2)
NCL (Northern Coalfields)
(cid:2) BCCL (Bharat Coking Coal Ltd.) (cid:2) ABB (cid:2) SIEMENS
(cid:2) (cid:2)
IVRCL VIJAI ELECTRICALS
(cid:2) (cid:2)
NCCL ENERCON
(cid:2) (cid:2)
L&T SUZLON INFRASTRUCTURE.
List of Exporting Countries:
(cid:2) (cid:2) (cid:2)
Argentina Israel Afganistan
(cid:2) (cid:2) (cid:2)
Columbia Uganda Pakistan
(cid:2) (cid:2) (cid:2)
Dominican Republic Nigeria Srilanka
(cid:2) (cid:2) (cid:2)
Paraguay Iran Myanmar
(cid:2) (cid:2) (cid:2)
Romania Bangladesh Vietnam
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CONVERSION FACTORS AND FORMULAE
CONVERSION FACTORS TABLE
These units Multiplied by Equal These units Multiplied by Equal
Amperes per sq. cm 6.452 Amperes per sq. in Foot-pounds 1.285 x 103 British thermal units
1.356 x 103 Ergs
Ampere-turns 1.257 Gilbert 5.050 x 10-2 horsepower hours
1.356 joules
Ampere-turns per cm 2.540 Ampere-turns per in 3.766 x 10-7 kilowatt hours
British thermal units 778.3 Foot pounds
3.930 x 10-4 Horsepower hours Foot-pounds per sec 7.709 x 10-2 B.t. units per minute
1.055 Joules 1.818 x 10-3 Horse power
2.931 x 10-4 Kilowatt hours 1.356 x 10-3 Kilowatts
B.t.u. per min 12.97 Foot-pounds per sec Gallons U S 0.1337 Cubic feet
0.02357 Horsepower 231 Cubic inches
0.01758 Kilowatts
17.58 Watts Gallons per minute 2.228 x 10-3 Cubic feet per sec
Centimeters 3.281 x 10-2 Feet Gausses 6.452 Lines per sq. inch
0.3937 Inches
Gilbert 0.7958 Ampere-turns
6.214 x 10-6 Miles
393.7 Miles Gilbert per centimeter 2.021. Ampere-turns per inch
1.094 x 10-2 Yards
Grams 980.7 Dynes
Centimeter-dynes 7.376 x 10-8 Pound-feet 15.43 Grains
0.03527 Ounces
Centimeter-grams 7.233 x 105 Pound-feet
Grams 0.03215 Ounces (troy)
Centimeter per sec 1.969 Feet per minute 2.205 x 10-3 Pounds
0.03281 Feet per sec
0.02237 Miles per hour Horsepower 42.42 B.t. units per minute
3.728 x 10-4 Miles per minute 33,000 Foot-pounds per minute
550 Foot-pounds per second
Circular mils 7.854 x 10-7 Sq. inches 1.014 Horsepower (metric).
0.7854. Sq. mils 0.7457 Kilowatts.
745.7 Watts.
Cms Per sec Per sec 0.03281 Feet per sec Per sec
Horsepower (boiler) 33.250 B.t.u. per hour.
Cubic Centimeters 3.531 x10-5 Cubic feet 9.804 Kilowatts.
3.102 x 10-2 Cubic inches
Horsepower hours 2,545 B.t. units
Cubic feet 7.481 Gallons U.S./6.228 imp. gal 1.98 x 106 Foot-Pounds
59.83 Pints (liquid) US 2.684 x 106 Joules.
29.92 Quarts (liquid) US
49.83 Pints (imperial) Inches of water 0.5781 Ounce per sq. in.
24.915 Quarts (imperial) 5.202 Pounds per sq. ft.
0.03613 Pounds per sq. in.
Cubic meters 35.31 Cubic feet
61.024 x 103 Cubic inches Inches of water 0.5781 Ounces per sq. in.
1.308 Cubic yards 5.202 Pounds per sq. ft.
264.2 Gallons US 0.03613 Pounds per sq. in.
2113 (1,759 imperial) pints (liquid)
1057 (879 imperial) quarts (liquid) Joules (Int.) 9.480 x 10-4 B.t. Units
107 Ergs
Degrees (angle) 0.01745 Radians 0.7378 Foot-pounds.
2.778 x 10-4 Watt-hours.
Degrees per sec 0.1667 Revolutions per minute
Kilograms 980.665 x 10-3 Dynes.
Dynes 2.248 x 10-6 Pounds 2.205 Pounds
1.102 x 10-3 Tons (short)
Ergs (dyne- Centimeters) 9.480 x 10-11 British thermal units
7.378 x 10-8 Foot pounds
Kilogram per sq. mm. 14.223 Pounds per sq. inch.
107 Joules
0.0063497 Tons per sq. inch.
Ergs per sec 5.688 x 10-9 B.t. units per minute Kilogram per sq. mm. 1,422.3 Pounds per sq. inch.
4.427 x 10-6 Foot-pounds per minute
7.378 x 10-8 Foot-pounds per sec Kilometer 0.62137 Miles.
1.341 x 10-8 Horsepower 1,093.61 Yds
10-10 Kilowatts 3,280.84 Ft.
Feet of Water 62.43 Pounds per sq. foot Kilolines 103 Maxwells
0.4335 Pounds per sq. inch
Kilowatts 56.88 B.t. units per min
4.427 x 104 Foot-pounds per min.
Feet per minute 0.01667 Feet per seconds
737.8 Foot pounds per sec.
0.01136 Miles per hour
1,341 Horsepower
103 Watts.
Feet per sec 0.5921 Knots
0.6813 Miles per hour
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These units Multiplied by Equal These units Multiplied by Equal
Kilowatt-hours 3,413 B.t. units per min. Quarts (dry) 67.20 Cubic inches.
2.656 x 106 Foot-pounds
1,341 Horsepower hours. Quarts (liq.) U.S. 3.342 x 10-2 Cubic feet.
3.6 x 106 Joules. 57.75 Cubic inches.
Lumens per sq. ft. 1 Footcandles. Radians 57.30 Degrees
3,438 Minutes
Megalines 106 Maxwells 0.6366 Quadrants.
Megohms 106 Ohms. Radians per sec. 57.30 Degrees per second.
9.549 Revolutions per min.
Metre 3.281 Feet. 0.1592 Revolutions per sec.
39.37 Inches.
6.214 x 10-4 Miles. Revolutions 360 Degrees
6.283 Radians
Metres per minute 0.05468 Feet per second. 4 Quandrants.
0.03728 Miles per hour.
Revolutions per minute 6 Degrees per second.
Metres per sec. 196.8 Feet per min. 0.1047 Radians per second.
3.281 Feet per second. 0.01667 Revolutions per sec.
2.237 Miles per hour.
0.03728 Miles per min. Revs. Per sec. Per sec. 6.283 Radians per sec. Per sec.
3,600 Revs. Per min. per min.
Microhms 1012 Megohms. 60 Revs. Per min. per sec.
104 Ohms.
Seconds (angle) 4.8 x 10-6 Radians
Mils 8.333 x 10-5 Feet.
103 Inches. Square centimetres 11..907736 xx 1100--53 CSqirucaulraer fmeeilts..
Mil-foot 9.425 x 10-6 Cubic inches. 0.1550 Square inches.
Millihenries 103 Henries. Square foot 2.296 x 10-5 Acres.
1.833 x 10-4 Circular mils.
Milimetres 3.281 x 10-3 Feet. 144 Square inches.
0.03937 Inches.
6.214 x 10-7 Miles. Square inches 1.273 x 106 Circular mils.
39.37 Mils. 6.944 x 103 Square feet.
106 Square mils.
Miles 1.6093 Kilometres.
1,760 Yds. Square metres 2.471 x 10-4 Acres
5,280 Ft. 10.76 Square feet
63,360 Inches. 1,550 Square inches.
3.861 x 10-7 Square mils.
Miles per hour 88 Feet per min.
1.467 Feet per second.
Square miles 640 Acres
27.88 x 106 Square feet.
Miles per hr. per sec. 1.467 Feet per sec. Per sec. 3.098 x 106 Square yards.
Miles per min. 88 Feet per second.
52.10 Knots. Square millimetres 1.973 x 103 Circular mils.
60 Miles per hour.
Square mils 1.273 Circular mils.
Minutes (angle) 2.909 x 10-4 Radians. 106 Square inches.
Ohms 110066 MMeicgroohhmmss.. Temp. (degs. C.) + 273 1 Abs. Temp. (degs.).
Temp. (degs. C.) + 17.8 1.8 Temp. (degs.) Fahr.
Ounces 0.0625 Pounds.
Temp. (degs. Fahr.) -32 0.5556 Temp. (degs.) C.
Ounces per sq. in. 0.0625 Pounds per sq. in.
Temp. (degs. Fahr.) + 460 1 Abs. Two (degs. Fahr.).
Pounds 44.823 Dynes.
16 Ounces. Tons (long) 2,240 Pounds
1.01605 Tons (metric)
Pounds (troy) 0.8229 Pounds (av.).
Tons (metric) 2,204.6 Pounds.
Pounds of water 0.01602 Cubic feet 0.09842 Tons (longs).
27.68 Cubic inches.
0.1198 Gallons U.S. Tons (short) 2,000 Pounds.
0.90719 Tons (metric).
Pounds per cubic foot 5.787 x 10-4 Pounds per cubic inch.
5.456 x 10-9 Pounds per mil-foot. Tons (short) per sq. ft. 13.89 Pounds per square inch.
Pounds per cubic inch 9.425 x 10-4 Pounds per mil-foot. Tons (short) per sq. in. 2,000 Pounds per square inch.
Pounds per square foot 0.01602 Feet of water. Tons (long) per sq. in. 157.488 Kilogram per sq. cm.
6.944 x 10-3 Pounds per sq. inch. 1,574.88 Kilogram per sq. cm.
0.157488 Tonnes per sq. mm.
Pounds per square inch 2.307 Feet of water.
144 Pounds per square foot. Webers 108 Maxwells.
Pounds of water per min. 2.669 x 10-4 Cubic feet per sec. Yards 0.9144 Metres.
0.000568 Miles.
Quadrants (angle) 90 Degrees.
5,400 Minutes.
1.571 Radians.
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CONVERSION FORMULAE
To Convert Multiply by To Convert.......................................................................Multiply by
LENGTH MASS
Milli-inches into micrometers ........................................................25.4 Grains into milligrams...........................................................64.79891
inches into millimeters ..................................................................25.4 Grains into metric carats ......................................................0.323995
Inches into centimeters ................................................................2.54 Grains into grams .................................................................0.064799
Inches into meters ....................................................................0.0254 Penny weights into grams ....................................................1.555174
Feet into millimeters ...................................................................304.8 Drams into grams ...................................................................1.77185
Feet into centimetres..................................................................30.48 Ounces into grams .............................................................28.349523
Feet into meters .......................................................................0.3048 Ounces troy into grams ......................................................31.103477
Yards into meters .....................................................................0.9144 Ounces troy into metric carats..............................................155.5174
Fathoms into metres.................................................................1.8288 Ounces into kilograms........................................................0.0283495
Chains into metres..................................................................20.1168 Pounds into kilograms ........................................................0.4535924
Furlongs into metres...............................................................201.168 Stones into kilograms .........................................................6.3502932
Miles, statute into kilometers ................................................1.609344 Hundred weights into kilograms .........................................50.802345
Miles, nautical into kilometers ....................................................1.852 Tons into kilograms.............................................................1016.0469
VOLUME & CAPACITY Tons into metric tones ..........................................................1.01604
Cubic inches into cubic centimeters ...................................16.387064 Tahils into grams ......................................................................37.799
Cubic inches into liters .........................................................0.016387 Kati into kilograms ..................................................................0.60479
Cubic feet into cubic meters ...............................................0.0283168 POWER
Cubic feet into litres............................................................28.316847 Foot pounds-force per second into watts ...............................1.35582
Pints into liters ....................................................................0.5682613 Horsepower into watts................................................................745.7
Quarts into liters .................................................................1.1365225 Foot pounds-force per second into kilowatts........................0.001356
Cubic yards into cubic meters ............................................0.7645549 Horsepower into kilowatts ........................................................0.7457
Gallons into litres....................................................................4.54609 Horsepower into metric horsepower.......................................1.01387
Gallons into cubic meters ...................................................0.0045461 1 Kgf = 9.81 N
Fluid ounces into cubic centimeters ...................................28.413063 1 N = 0.1019 kg
AREA 1 KN = 0.1019 X 1000
Square inches into square millimeters .....................................645.16
Square inches into square centimeters ....................................6.4516
Square feet into square centimeters ....................................929.0304
Square feet into square meters ............................................0.092903
Square yards into square meters .........................................0.836123
Acres into areas ...................................................................40.468564
Acres into hectares.............................................................0.4046856
Square miles into hectares...................................................258.9988
Square miles into square kilometers ....................................2.589988
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WIRE GAUGE CHART
Wire Number
Standard Wire Gauge (SWG) American Wire Gauge (AWG)
Gauge
Gauge In. Equivalent In mm In. Equivalent In mm
7/0 .5000 12.700 - -
6/0 .4640 11.786 .5800 14.7320
5/0 .4320 10.973 .5165 13.1191
4/0 .4000 10.160 .4600 11.6840
3/0 .3720 9.449 .4096 10.4049
2/0 .3480 8.839 .3648 9.2658
1/0 .3240 8.230 .3249 8.2515
1 .3000 7.620 .2893 7.3481
2 .2760 7.010 .2576 6.5437
3 .2520 6.401 .2294 5.8273
4 .2320 5.893 .2043 5.1892
5 .2120 5.385 .1819 4.6203
6 .1920 4.877 .1620 4.1148
7 .1760 4.470 .1443 3.6652
8 .1600 4.064 .1285 3.2639
9 .1440 3.658 .1144 2.9058
10 .1280 3.251 .1019` 2.5883
11 .1160 2.946 .0907 2.3038
12 .1040 2.642 .0808 2.0523
13 .0920 2.337 .0720 1.8288
14 .0800 2.032 .0641 1.6281
15 .0720 1.829 .0571 1.4503
16 .0640 1.626 .0508 1.2903
17 .0560 1.422 .0453 1.1506
18 .0480 1.219 .0403 1.0236
19 .0400 1.016 .0359 .9119
20 .0360 .914 .0320 .8128
21 .0320 .813 .0285 .7239
22 .0280 .711 .0253 .6426
23 .0240 .610 .0226 .5740
24 .0220 .599 .0201 .5105
25 .0200 .508 .0179 .4947
26 .0180 .457 .0159 .4039
27 .0164 .417 .0142 .3607
28 .0148 .376 .0126 .3200
29 .0136 .345 .0113 .2870
30 .0124 .315 .0100 .2540
31 .0116 .295 .0089 .2261
32 .0108 .274 .0080 .2032
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Wire Number Standard Wire Gauge (SWG) American Wire Gauge (AWG)
Gauge
Gauge In. Equivalent In mm In. Equivalent In mm
33 .0100 .254 .0071 .1803
34 .0092 .234 .0063 .1600
35 .0084 .213 .0056 .1422
36 .0076 .193 .0050 .1270
37 .0068 .173 .0045 .1143
38 .0060 .152 .0040 .1016
39 .0052 .132 .0035 .0889
40 .0048 .122 .0031 .0787
41 .0044 .112 .0038 .0711
42 .0040 .102 .0025 .0635
43 .0036 .091 .0022 .0559
44 .0032 .081 .0020 .0508
45 .0028 .071 .0018 .0457
46 .0024 .061 .0016 .0406
47 .0020 .051 .0014 .0356
48 .0016 .041 .0012 .0305
49 .0012 .031 .0011 .0279
50 .0010 .026 .0010 .0254
51 - - .0009 .20224
52 - - .0008 .0198
53 - - .0007 .0178
54 - - .0006 .0157
55 - - .0006 .0140
56 - - .0004 .0125
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ACSR CONDUCTORS
The Aluminium conductors galvanized steel reinforced briefly called as ACSR comprises of seven or more Aluminium and galvanized
steel wires, built up in concentric layers. The Centre wire or wires are of galvanized steel and the outer layer or layers are of Aluminium.
As such steel cored - Aluminium conductors have been widely adopted for high voltage transmission lines specially for long spans. It
has high tensile strength but it reduces with rise of temperature above 65xC.
There are many types of such composite conductors which are covered in IS 398 (P II) / 1976-1996, BS 0215 (P II) / 1970 and other
international standards.
The conductivity of steel cored Aluminium conductor is taken as that of Aluminium portion alone as the steel wires have high
resistance to alternating currents.
The strength is taken as 85 percent of the sum of steel wires plus 95% of the sum of the strength of the Aluminium wires. The factor 85%
and 95% allows for the stranding. The strength of Aluminium wires varies from 23000 lb. per sq. inch (for larger wires) to 28000 lb. per
sq. . inch (for small wires) and of steel from 179000 lb./in to 200000 lb./in. The total strength of steel cored Aluminium conductor is
2 2
normally 50% greater than that of equivalent copper conductors. And the weight only three quarters as much (one half due to
Aluminium and a quarter to steel). It is claimed that the result is a conductor with smaller ratio of loading to strength than any other
conductor, even allowing for increased wind and ice loads due to the increased diameter as compared with that of the equivalent
copper conductor. The sag is therefore the least so that supporting towers may be shorter or the span length greater for given sag than
for any other conductor. The larger diameter is useful in very high voltage lines as the corona losses are less.
ANNEXURE 'A'
AAAC - HS BASIC PROPERTIES AAAC - HS TECHNICAL ADVANTAGES
ULTIMATE TENSILE STRENGTH (kg/mm2) (Over Electro - Mechanically Equivalent ACSR)
Minimum Average 30.00 MECHANICAL STRENGTH TO WEIGHT ratio is sufficient
high to avoid steel core, hence:
Typical • Light conductors
Wire Diameter Range (mm) • Smaller tension, smaller loads on angle and dead end towers
From 1.19 upto 3.30 32.7 • Easier handling and transportation on site.
Above 3.30 upto 3.80 32.0 • Homogeneous conductors:
Above 3.80 upto 4.30 31.3 • Even distribution of stresses across the section.
ULTIMATE ELONGATION (percent in 200 mm) • Smaller gyration, easier running out under tension
Minimum 4.0 • Simpler, safer and economical joints
Typical 5.5 • Highervalue of scrap
MODULI OF ELASTICITY (kg/mm2) SURFACE HARDNESS twice that of Aluminium strands, hence:
Initial modulus (average) 5200 to 5600 • Less prone to damage and scratches during running out
Final modulus (average) 6250 to 6450 • Smaller corona losses and radio interference
TEMPERATURE COEFFICIENT OF 0.00360 • Better performance under splicing and compression
RESISTANCE per x C at(20xC) • Greater reliability in service, easier erection
TEMPERATURE COEFFICIENT OF LINEAR 23x10-6
EXPANSION per x C (Between 10 and 100xC)
CREEP (10 year typical) 0.05% CHEMICAL RESISTANCE
BRINELL HARDNESS (BHN) 80 • In AAAC, absence of steel / zinc / Aluminium cell hence
ELECTRICAL VOL. RESISTIVITY at • Better corrosion resistance in sea coast or industrial areas
20Xc(x-mm2/ m )
Standard 0.0325 ELONGATION almost equal to that of steel (4%)
Typical 0.0320 • In AACSR, for lines in mountains and estuaries:
SPECIFIC WEIGHT (gram / cubic centimeters) 2.70 • Excellent mechanical homogeneous
ELECTRICAL CONDUCTIVITY at 20xC(% IACS) • High breaking strength for long spans
Standard 52.5
Typical 53.3
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