I'm working at a water treatment plant that is classified as class 1 div 1 there is a machine in there that is fed from a control panel outside of the classified area and also coming from the control panel to the machine is 2 intrinsically safe sensors if you will a float and a transducer. So my question is the cable glands for the float and transducer I was just planning on putting a coupling on the end of a piece of rigid conduit and a cable gland on the end. Now the float and transducer both came with 100 ft cords that will make it back to the panel. Now after the pipes exit the classified space there is an ey seal before the control panel. Now my question is the cable glands going on the coupling for the intrinsically safe circuits does that have to be a sealing cable gland (im thinking no) and the next is does that cable gland have to listed for class 1 div 1. When it comes to cable glands I'm getting very confused with how some are rated for class 1 div 1 div 2 and others just have a ton of what looks like iec listings for different zones and what not.
Then are there are 2 solenoids on the machine that have to go back to the control panel. Now they're going into a GUAT box and it's just going to be a splice in there so I would think I wouldn't need a sealing fitting and also same question does the cable gland have to be class 1 div 1 or something zone 1 or can I use something class 1 div 2 or who cares cause there is going to be a seal before the control panel and a splice shouldn't cause a spark or arc under normal circumstances.
Just to finish it off if people going to ask why don't I use a flexible connector this machine articulated up and down to clean it out and the wires would probably need 8 to 10 ft of flex. I would think SOOW would be a better move for this and the float and transducer just sit in a hold in the machine there is really no box they go into or a penetration in the machine.\
Any advise on this would be greatly appreciated. I feel like the easy answer is the just say everything has to be class 1 div 1 but im not sure that is the case thanks.
Then are there are 2 solenoids on the machine that have to go back to the control panel. Now they're going into a GUAT box and it's just going to be a splice in there so I would think I wouldn't need a sealing fitting and also same question does the cable gland have to be class 1 div 1 or something zone 1 or can I use something class 1 div 2 or who cares cause there is going to be a seal before the control panel and a splice shouldn't cause a spark or arc under normal circumstances.
Just to finish it off if people going to ask why don't I use a flexible connector this machine articulated up and down to clean it out and the wires would probably need 8 to 10 ft of flex. I would think SOOW would be a better move for this and the float and transducer just sit in a hold in the machine there is really no box they go into or a penetration in the machine.\
Any advise on this would be greatly appreciated. I feel like the easy answer is the just say everything has to be class 1 div 1 but im not sure that is the case thanks.
