Kalis Letupan Shenhai
Dalam bidang peralatan kalis letupan, keselamatan ditentukan dengan ketara oleh klasifikasi suhu peranti. Klasifikasi T6, menunjukkan “suhu permukaan maksimum,” mewakili kategori paling selamat dalam julat ini. This classification ensures that the surface temperature of the equipment is low enough to prevent igniting flammable gases, even those with a low ignition point. Sebaliknya, T1, with the highest allowed surface suhu, poses the greatest risk in explosive environments.
| Kumpulan suhu peralatan elektrik | Suhu permukaan maksimum yang dibenarkan bagi peralatan elektrik (℃) | Suhu penyalaan gas/wap (℃) | Tahap suhu peranti yang berkenaan |
|---|---|---|---|
| T1 | 450 | ＞450 | T1~T6 |
| T2 | 300 | ＞300 | T2~T6 |
| T3 | 200 | ＞200 | T3~T6 |
| T4 | 135 | ＞135 | T4~T6 |
| T5 | 100 | ＞100 | T5~T6 |
| T6 | 85 | ＞85 | T6 |
In explosion-proof equipment, the primary concern isn’t an internal component explosion, but rather the restriction of energy released from damaged internal components to prevent igniting gases in bahan letupan atmospheres. As per the “Design Specifications for Electrical Installations in Explosive and Fire Hazardous Environments”, the T6 level stands as the safest classification. Devices with T6 classification are effective in preventing explosions, especially in environments with low ignition point combustible gases, not to mention those with higher ignition points.