Shenhai Explosion-Proof
Ua haapii mai te “Ex” i te haamataraa o te hoê tapa'o faaite e, tei roto te reira i te hoê matini taa ê, aita râ te reira e faataa hu'ahu'a mai nei i to'na mau huru taa ê.
Te mau tapa'o no te mau matini uira tei tupitahia
| Huru | Te huru o te haapapuraa | Te maraaraa o te huru parururaa | Te huru parururaa i roto i te tino | Positive Pressure Type | Oil Filled Type | Te mau hu'a one i î i te one | Spark Free Type | Exm | Airtight Type |
|---|---|---|---|---|---|---|---|---|---|
| Sign | d | e | ia and ib | p | o | q | n | m | h |
E faaite mai teie mau tapa'o i te huru o te paainaraa, Te mau mana'o tauturu no te, e te mau Ô. Ei hi'oraa:
Ex d ii refers to a Class II, Level B, Group T3 flameproof electrical device;
Ex ia II AT5 indicates a Class II, Level A, Group T5 ia level intrinsically safe electrical device;
Ex ep II BT4 designates an increased safety type electrical device with pressurized components for explosion protection;
Exd II (NH3) or Ex d II ammonia identifies a Te mau mana'o tauturu no te haapiiraa electrical device designed for helium gas environments;
Ex d I represents a mining-specified Class I flameproof electrical device;
Ex d/II BT4 signifies a flameproof electrical device applicable for both Class I and Class II, Level B, Group T4.
Dust explosion-proof electrical devices are marked with the DIP (Dust Ignition Proof) te taipe. Examples include:
DIP A20 and DIP A21, for Type A dust explosion-proof devices in Zones 20 e 21, Te mau nota;
DIP A22 for a Type A dust explosion-proof device in Zone 22;
DIP B22 for a Type B dust explosion-proof device in Zone 22, i rotopu i te tahi atu mau taata.