无法在这个位置找到:oga.htm

The explosion-proof column speaker adopts aluminum alloy shell material, explosion-proof design, and full-range speaker unit. It is an explosion-proof broadcast alarm sound column installed in flammable and explosive areas for broadcast sound amplification and fire alarm.
The explosion-proof sound column has a reasonable structural design and beautiful appearance, which can effectively resist dust pollution and humid air.
This product complies with GB3836.1-2000 "General Requirements for Explosion-proof Electrical Equipment for Explosive Environments" and GB3836.2-2000 "Explosion-proof Electrical Equipment for Explosive Environments Flameproof Type "d"" standards.
The product explosion-proof grade reaches Ex db IIC T6 Gb standard, which is suitable for flammable and explosive places such as mining, petroleum, chemical, electric power, oil depots, etc.

| Basic Features | |
| Ex mark | Ex db IIC T6 Gb/Ex tb ib lllC T80C Db |
| Waterproof Rate | IP66 |
| Ringing Sound Level | ≥120 db at 1 meter |
| Frequency response | 100hz-10Khz |
| Speaker inside | 1 high tone speaker + 3 for high, medium and low tones |
| Enclosure Material | Aluminium alloy die-casting Powder coating treatment Outdoor UV protection |
| Color | Silver ( default) |
| Power rate | 30W/50W/100W |
| Audio constant voltage | 70-120V |
| Constant resistance | 4-16 Ω |
| Power supply | DC24V |
| Inlet thread size | G1/2 |
| Installation method | Wall-mounted |
| Working temperature | Operating temperature: -40°C to + 70°C Storage temperature: -40°C to +75°C |
| Humidity range | less than 95%. |

Maritime

Highway / Tunnel

Railway

Power - Station

Mining industry

Industrial park
| Package | |
| Unit size | 685*270*205(mm) |
| Packaging materials | corrugated box, pearl cotton lining |
| Weight | Net weight : about 15 KG / Gross Weight :16 KG |