Acoustic Enclosures  
     

To enhance the range of standard generating sets for the export market and small UK projects up to 250kVA, Broadcrown have developed a standard range of acoustic canopies - designed to operate in harsh outdoor environmments whilst providing excellent security and acoustic performance.

All steel canopy components are pre-treated and polyester powder coated (to a typical thickness of 70-80 micron) in RAL9001 white and all baseframes are finished in RAL9005 black. This, along with the use of zinc plated fasteners and neoprene seals, provides for a very durable yet attractive finish.

Acoustically, the canopies are designed to meet the requirements of EU Legislation 2000/14/EC. This level of performance is met by the extensive use of fire-retardant polyurethane foam together with efficient management of cooling air. Exhaust noise is minimised by internally mounted high performance exhaust silencers.
 
       

A steel fuel tank, complete with filler, gauge and accessory points, is integrated within the baseframe on all canopies except Midi. Alternatively, these can be provided with a bund and separate tank where required.

The Midi 1 canopy makes use of a compact tank moulded in tough polypropylene, with visual level indication, mounted within the baseframe.

Other key features include :

- Gull-wing or side opening doors for good service access
- Panel/breaker access door with viewing window
- Heavy duty locks on all doors for total security
- Weather cap on exhaust discharge
- Emergency Stop button relocated to canopy exterior
- Lifting and holding down points
- Fork Lift pockets (up to Canopy 4A)
- Single roof lifting point (available on certain models only)
 
       
 
 
   

The canopy range has been extended to include the next size range of standard generating sets (up to 635kVA) - known as C5, C6 and C7. Here the design principles are similar, but the canopy is of fully welded construction and relies on rock wool and a perforated zintec steel lining to achieve acoustic performance. A two-pack polyurethane paint system makes for a tough and durable finish.

Again, there is an integral steel fuel tank with the option of a bund and separate tank.

Baseframe lifting/lashing points are provided but, in lieu of fork lift pockets, these canopies are equipped with roof lifting points as standard (single on C5 and C6, dual on C7).
Canopy 4 / 4a
 
   
     
     
 
        Single Point Lift
  Dimensions Typical Sound Pressure Level Fuel Tank Capacity
           
Acoustic Enclosure mm [inch] 50Hz
75% Prime Power 		60Hz
Standby Power 		Litres US Gal
                     
  L x W x H dB(A) at 1m dB(A) at 7m dB(A) at 3ft dB(A) at 23ft Integral Bunded Integral Bunded  
M1 Midi 1 Canopy 1810 x 950 x1120
[71.3 x 37.4 x 44.1] 		73 63 74 64 55 - 15 -
M2 Midi 2 Canopy 2100 x 850 x 1240
[82.7 x 33.5 x 48.8] 		74 64 75 65 95 - 25 -
C1 Canopy 1 2260 x 850 x 1480
[98.0 x 33.5 x 58.3] 		77 67 79 69 115 100 30 26
C2 Canopy 2 2890 x 1070 x 1680
[113.8 x 42.1 x 66.1] 		78 68 80 70 240 200 63 53
C3 Canopy 3 3550 x 1150 x 1700
[139.8 x 45.3 x 66.9] 		80 70 82 72 460 400 122 106  
C4 Canopy 4 3940 x 1300 x 1800
[155.1 x 51.2 x 70.9] 		80 70 82 72 570 500 151 132  
C4A Canopy 4A 4750 x 1475 x 2000
[187.0 x 58.1 x 78.7] 		80 70 82 72 740 650 195 72  
C5 Canopy 5 5350 x 1600 x 2120
[210.6 x 63.0 x 83.5] 		77 67 79 69 900 800 238 211
C6 Canopy 6 5850 x 1600 x 2300
[230.3 x 63.0 x 90.6] 		80 70 82 72 1165 975 308 258
C7 Canopy 7 6600 x 1900 x 2425
[259.8 x 74.8 x 95.5] 		80 70 82 72 1600 1325 423 350  
     
 
        Standard Equpment Available as an option
        Typical SPL is a mean level, measured in free field conditions, with no contributory background noise