Ubufakazi bokuqhuma kwe-Shenhai
Isigaba se-IIB sokuvikela ukuqhuma sidlula i-IIA ngokwemvelo, futhi izinga lokushisa le-T4 linikeza amazinga okushisa aphansi futhi aphephile kune-T1. Ngakho, I-BT4 inesilinganiso esiphezulu sokuvikela ukuqhuma.
| III | C | T135℃ | Db | IP65 |
|---|---|---|---|---|
| III Uthuli olungaphezulu | T1 450℃ | Ma | IP65 | |
| T2 300℃ | Mb | |||
| T3 200℃ | ||||
| A Izihlahla ezindizayo ezivuthayo | Futhi | |||
| T4 135℃ | ||||
| Db | ||||
| B Non conductive dust | T2 100℃ | UDkt | ||
| C Uthuli lwe-conductive | T6 85℃ |
Ikilasi ngalinye elivikela ukuqhuma liqondise amagoli athile okuphepha. Imininingwane enemininingwane ingatholakala ngokusesha ku-Shenhai Explosion Proof.