Shenhai prueba explosiones
Let’s start by explaining the various explosion-proof ratings, Ku significan, ka bix elegir le ti' le beetik, Búukinta'al cajas distribución prueba explosiones bey ejemplo.
| Múuch' gases leti' múuch' temperatura | T1 | T2 | T3 | T4 | T5 | T6 |
|---|---|---|---|---|---|---|
| IIA | Formaldehído, tolueno, éster metílico, acetileno, propano, acetona, ácido acrílico, benceno, estireno, monóxido carbono, acetato etilo, ácido acético, clorobenceno, acetato metilo, cloro | Metanol, etanol, Etilbenceno, Propanol, propileno, butanol, acetato butilo, acetato amilo, Ciclopentano | Pentano, pentanol, hexano, etanol, heptano, octano, ciclohexanol, trementina, nafta, petróleo (incluida le gasolina), fueloil, tetracloruro pentanol | Acetaldehído, trimetilamina | Nitrito etilo | |
| IIB | Éster propileno, éter dimetílico | Butadieno, epoxi propano, etileno | Éter dimetílico, acroleína, carburo hidrógeno | |||
| CII | Hidrógeno, Ja' Gas | Acetileno | Disulfuro carbono | Nitrato etilo |
Marcado certificación:
Ex d IIB T4 Gb leti' Ex tD A21 IP65 T130 ° C le jump'éel certificado universal yo'osal protección xu'ullsa'al explosiones gas yéetel juuch'bil, where the part before the slash (/) indicates the gas explosion-proof level, and the part after the slash indicates dust explosion-proof.
Ex: Explosion-proof marking, the standard format of IEC (International Electrotechnical Commission) explosion-proof ratings.
d: Ininflamable bin yano'ob, indicating the primary form of explosion protection is flameproof.
IIB: Represents Class B gas explosion protection.
T4: Indicates the temperatura class.
Gb: Indicates this product is suitable for Zone 1 Protección xu'ullsa'al explosiones.
For the Explosión juuch'bil part in the latter half, it’s sufficient to achieve the highest dust protection grade 6 based on the gas explosion-proof standards.
Td: Represents the type of enclosure protection (preventing dust ignition with enclosure).
A21: Indicates the applicable area, suitable for Zone 21, Kúuchil tu'ux 22.
IP65: Represents the protection grade.
It’s crucial to choose the correct explosion-proof rating in actual environments.
Yáax, it’s important to understand two main categories, as described below:
Explosion-proof types:
Xook I: Electrical equipment for underground coal mines;
Xook II: Electrical equipment for all other explosivo gas environments except coal mines and underground.
Class II can be divided into IIA, IIB, yéetel le CII, where equipment marked IIB can be used under conditions suitable for IIA devices; IIC can be used under conditions suitable for both IIA and IIB.
Xook III: Electrical equipment for explosive dust environments other than coal mines.
IIIA: Combustible flyings; IIIB: Juuch'bil ma' conductor; IIIC: Juuch'bil conductor.
Explosion-proof areas:
Kúuchil tu'ux 0: Where explosive gases are always or frequently present; continuously hazardous for more than 1000 hours/year;
Kúuchil tu'ux 1: Where inflamable gases might occur during normal operation; intermittently hazardous for 10 Utia'al 1000 hours/year;
Kúuchil tu'ux 2: Where flammable gases are not normally present and, if they occur, are likely to be infrequent and short-lived; hazardously present for 0.1 Utia'al 10 hours/year.
It is important to note that we deal with Class II and III, Kúuchil tu'ux 1, Kúuchil tu'ux 2; Kúuchil tu'ux 21, Kúuchil tu'ux 22.
Típicamente, reaching IIB is sufficient for gases, but for hidrógeno, acetileno, ka disulfuro carbono, a higher level of IIC is required. For dust explosion protection, just achieve the corresponding gas Nivel prueba explosiones and the highest dust grade.
There’s also a combined type of jiri'alob distribución prueba explosiones Tsoolil jejelas: ExdeIIBT4Gb.