I roto i te aua o te mau matini hi'opo'a, e faataa-maitai-hia te parururaa na roto i te anuvera o te matini. Te T6 no Tĭtĭ, faaiteraa i te “te anuvera i ni'a i te fenua,” te hoho'a o te tuhaa maitai roa a'e i roto i teie anairaa. 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. I te tahi a'e pae, T1, with the highest allowed surface anuvera, poses the greatest risk in explosive environments.
Te anuvera o te mau tauihaa uira | Te anuvera o te mau tauihaa uira i nia i te fenua (°C) | Te anuvera o te gas/vapor (°C) | Te mau faito anuvera o te matini e tano |
---|---|---|---|
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 Te mau mana'o tauturu no te 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.