Our company does a good deal of work on marine termianls handling petroleum and its products. Sometimes the API rules are very difficult to interpret in view of reality. Consider API 500 Figure 96 where it is stated "Outdoors - Piping with Valves, Screwed Fittings, Flanges or Similar...
Our company does a good deal of work on marine termianls handling petroleum and its products. Sometimes the API rules are very difficult to interpret in view of reality. Consider API 500 Figure 96 where it is stated "Outdoors - Piping with Valves, Screwed Fittings, Flanges or Similar...
A marina floating dock with a large 1-phase transformer is being fed from shore two multiconductor cables each of which incorporates 4-#1 bare ground conductors (83,690CM each). The transformer secondary neutral must connect to an electrode grounding wire that in this case must be sized as the...
Regardless of cost considerations, what is the absolutely best protective coating for a trussed steel structure in the tidal/splash zone?
This horizontal structure is a beam that will be partially immersed a low tide and 3/4 immersed at normal high tides and sacrificial anodes will be applied...
We are designing a sacrificial anode type of cathodic protection system for a sheet pile wall in an estuary that changes salinity according to the seasons. Salinity values range from a minimum of 1 ppt to a maximum of 20 ppt. The problem arises because the low salinity periods can last for up to...
An assiciate has asked me what the area might be required for one each very large combined cycle gas turbine generator setup, i.e., what its footprint might be. He wants a figure for the largest GT-C unit available. I have seen 300 and 500 MW units described on the Web but since I very seldom...
I am contemplating purchasing a Canon 9000 wide format (11x17) inkjet printer and wonder if anyone has had any difficulty in printing from ACAD 2000 to this type of printer.
This printer is primarily a photo printer, certainly not specifically made for CAD work, although it does incorporate a...
I have a SWL antenna that has a 75 ohm coax lead out of the switch box/tuner to an 1/8' audio plug. I also have a simple folded dipole for FM with a balun so it too has a 75 ohm lead out to an 1/8" audio plug. Each time I listen to SW I have to manually insert one plug into the radio's...
An odd arrangement of five generators; 2-3500 kW gas turbines, 2-800 kVA gas engines and 1-800 kVA diesel unit, all rated at 11 kV and different rotational speeds. What is the best way to handle the neutral grounding of these different units?
1) Use a medium voltage switch or circuit breaker...
