1. For the dangerous sites with explosive air mixture:
1 pision、2 pision；
2. Flammable gas, steam class：ⅡA、ⅡB、ⅡC；
3. Temperatures classification：T1~T6；
4. Indoor and outdoor (IP65).
Clamping cable to avoid being pulled out A sealing rubber ring is set between outer thread joint and thread press cap. Three metal calws are set in the small end of sealing rubber ring. They will shrink to ward centerwith the rubber ring to clamp the cable and ground the armored cable.
