We are updating an existing electrical installation for which the conduits and condulets utilized in a Class I, Division 2, Group B location are marked with Class I, Division 1, Group C/D. The condulets do not contain any ignition sources as they only contain wire runs inside them.
The...
Background:
I have a client who performs hydrogenations on their reactors in a chemical process plant. They have electrical equipment which is located within Class I, Division 1 and Class I, Division 2 boundaries of the reactors. Because they are using hydrogen levels above the lower flammable...
I am an electrical engineer for a small engineering consulting company. More and more of the projects I have been taking on involve hazardous area classification and placing electrical equipment within Class I Division 1/2 locations. While I have a basic understanding of it, I would like to...
Thank you everyone for the responses. The motors are going to be yanked out, refurbished (customer requested this as the only option), and put back into service. In normal operation, the starts per hour should not be a problem, however, for commissioning the new system we will need to start...
I am working with some 50+ year old GE 100HP Squirrel-Cage motors used as an oil pump for a large generator. The info I've gathered from them include: 3-phase, 4000V, 18.2 FLA, 700RPM, 60Hz, Frame 6334Y, Type K, 10-pole, Nema Class B, Model 5K6334PL1. My question is how many times per hour...