( ), "-1979

2

Go

1

2

Go

2

2

Go

3

2

Go

4

2

Go

,

5

3

Go

6

3

Go

7

3

Go

8

3

Go

9

3

Go

10

3

Go

11

4

Go

12

4

Go

13

4

Go

14

4

Go

5

Go


( ), "-1979*

5 -18 , "-1961, :

1.

"dB(A)" - " " , ' 123 1961, ;

" " - , ;

" " - :

Leq - -dB(A);

Log - 10;

Li - i (-(dB(A);

Si - i ();

5dB(A), ;

" " - ;

"" - ;

" " - 18 .

2. , 9() 3

(1) 31.12.1981 90dB(A)

(2) 31.12.1985 85dB(A)

(3) -1.1.1986 80dB(A).

3. 2, 9().

4. () .

() .

,

5. 2

(1) 10() - ;

(2) 10() - ;

(3) 10() - , 5dB.

6. -10dB(A), -5dB(A); .

7. () , ' 123 1961, ' 179 1965 - .

() () .

8. .

9. () , 15 .

() :

(1) ;

(2) 120 " -150 " ( );

(3) .

10. () , :

(1) "" (fast) ;

(2) 5 ;

(3) .

() - 10dB(A) .

() - 10dB(A) .

() - , 20dB(A) .

11. () "" (slow) .

() :

(1) "" (fast);

(2) 5 .

() 8 -20 500 .

() -8 -20 .

() -10 .

() 10 -10 .

12. .

13.

(1) ;

(2) 9();

(3) 9(), 9, 10 -11.

14. .

( 1)

:

1. EARTH MOVING EQUIPMENT

Bulldozer tractor

Front end loader - tractor

Agriculture & Industrial tractor

Motor grader

Excavator

Trencher

Earth auger

Vibratory compactor

Motor Scraper

Off highway truck

2. BUILDING EQUIPMENT

Concrete Mixer

Concrete pump

, Concrete mixing plant

Concrete Slabs/Blocks equipment

/ Concrete cutting saw

Vibrator

Dumper

Fork Lift

Elec. Generating set

/ Crane & Derick

Mech. Winch/Hoists

Power Tools

3. ROAD EQUIPMENT

Roller/Compactor

Asphalt Plant

/ Finisher/Paver

Curb master

Sweepers

4. QUARRY EQUIPMENT

Air compressor

Jack Hammers

Wagon Drill

Petrol-Driven Rock Drill

Stone Crusher

Vibrating Screen

Pneumatic power tools

(: Pile Driver ).

( 14)

( ), "-1978.

1.

           

      '      

     

     

( )      

2.      

     

     

3.      

      '      

      '      

      '      

( )       '      

4.

( , )

     

5.

     

     

     

            ____________

' " (1 1979)



* " " ' 3992 19.6.1979 ' 1394.