Shenhai Explosion-Proof
Ang mga kagamitang elektrikal na lumalaban sa pagsabog ay ikinategorya sa anim na uri batay sa kanilang pinakamataas na temperatura sa ibabaw: T1, T2, T3, T4, T5, at T6. Ang mga kategoryang ito ay umaayon sa mga pangkat ng temperatura ng pag-aapoy para sa mga nasusunog na gas.
| Antas ng temperatura IEC/EN/GB 3836 | Ang pinakamataas na temperatura sa ibabaw ng kagamitan T [℃] | Lgnition temperatura ng mga nasusunog na sangkap [℃] |
|---|---|---|
| T1 | 450 | T＞450 |
| T2 | 300 | 450≥T＞300 |
| T3 | 200 | 300≥T＞200 |
| T4 | 135 | 200≥T＞135 |
| T5 | 100 | 135≥T＞100 |
| T6 | 85 | 100≥T＞8 |
The term ‘maximum surface temperature’ denotes the highest temperature that can be reached on the surface or parts of the explosion-proof electrical equipment under both normal and the most adverse conditions deemed acceptable, with the potential to ignite surrounding explosive gas mixtures.
The guiding principle for temperature classification in explosion-proof electrical devices is as follows:
The peak surface temperatura generated by the device must not be capable of igniting adjacent combustible gases, and it should not exceed the ignition temperature of these gases. For safety ratings, T6 devices rank the highest, while T1 devices are at the lower end.
This demonstrates that for pampasabog materials with identical temperatures, it reflects the lower boundary of their ignition temperatures. Sa kabaligtaran, para sa explosion-proof na mga de-koryenteng kagamitan, it denotes the upper limit of their maximum surface temperatures, showcasing a clear distinction in characteristics.
Given that explosion-proof electrical equipment utilized in explosive dust environments clearly states the device’s maximum surface temperature, ang “Electrical Equipment Design Code for Explosive Hazard Environments” no longer divides explosion-proof electrical equipment into temperature groups.