Zone 21 and Zone 22
Meet the necessities in the following industries, such as petroleum, chemical, electricity, medicine, textile, wine-making, aerospace, military, fire-fighting, etc.
Features and benefits
◆ Explosion protection to-CENELEC
-IEC
◆ Two enclosure types: 18W, 36W.
◆ Enclosure in glass fibre reinforced polyester, diffuser in
polycarbonate, corrosion-proof
◆ Ex e enclosure with explosion-proof components inside
◆ Safety interlock between enclosure and diffuser switches
off on opening
◆ Electronic ballast, power factor≥0.95
◆ Emergency unit with protections against over charge and
over discharge.
◆ End of lamp life (EOL) rectification effect protection.
Outline and installation dimensions
Technical data
| Explosion protection | |
| Gas explosion protection |  II2 G Ex de IIC T4 Gb |
| Dust explosion protection | II2 D Extb ⅢC T80℃ Db IP66 |
| Conformity to standards | EN 60079-0: 2012,EN 60079-1: 2007,EN 60079-7: 2007,EN 60079-31: 2009, |
| IEC 60079-0: 2011, IEC 60079-1: 2007, IEC 60079-7: 2006,IEC 60079-31: 2008 | |
| Material | |
| Enclosure | GRP, stands 7J impact, corrosion-proof |
| Diffuser | Polycarbonate, 90% light transmission, stands 7J impact |
| Ballast | Explosion-proof electronic ballast, power factor ≥0.95, with protection against short |
| circuit, overload, lamp aging,lamp damage and dissymmetry power of lamp tube. | |
| *Emergency unit | Special emergency controller and NI-MH battery pile, with protection against over |
| charge and over discharge | |
| Emergency controller | Explosion-proof emergency controller. |
| Exposed fastener | Stainless steel |
| Lamp | |
| Lamp brand | PHILIPS T8 (supplied with the light fittings) |
| Lamp power(W) | 36W×2 18W×2 |
| 36W×1 18W× 1 | |
| *Emergency power(W) | 36W×1 18W×1 |
| *Emergency start time | 0.3s |
| *Charge time | 24h |
| *Emergency lighting time | 120min (180min is optional) |
| Rated voltage | 96-254VAC 50/60Hz |
| Protection class | Ⅱ (Protection against electric shock) |
| Degree of protection | IP66 |
| Ambient temperature | -25℃〜+55℃ |
| Terminal | 3×1.5~4mm2 (L+N+PE) |
| Cable entries | 4×φ26: 2× M25×1.5 cable gland 2 x M25×1.5 plug. |
| Available cable outer diameter | φ10~φ14 (mm) |
Outline and installation dimensions
| Size(mm) Type | A | B | C | D |
| BYS51-18×(1～2)(J) | 642 | 798 | 120 | 208 |
| BYS51-36×(1～2)(J) | 800 | 1380 | 120 | 208 |
| Serialnumber | Name | Remark |
| 1 | Mounting rack | |
| 2 | Explosion-proof light fittingsfor fluorescent lamp | |
| 3 | Hook | User-supplied |
| 4 | Chain | |
| 5 | Hook | User-supplied |
| 6 | Eye bolt | |
| 7 | Fixed plate | |
| 8 | Bend pipe | G1 |
| 9 | Cable | User-supplied |
| 10 | Fasten clamp | User-supplied |
| 11 | Pipe clamp | |
| 12 | Mounting rack (30°) | |
| 13 | Mounting rack (90°) | |
| 14 | Mounting rack | |
| 15 | Screw | M8 |
| 16 | Pipe | G11/4 |
| 17 | Pipe | G11/4 |
| 18 | U Type pipe clamp | User-supplied |
| 19 | Explosion-proof pipe connector | G3/4 |
| 20 | Explosion-proof junction box(ⅡC) | AH-C/G3/4C |
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