We have a situation where we are installing a modular building system on 2x4 wooden sole plates attached to a concrete foundation. Residential Construction. In this case, if it were a standard framed wall the code in our case would require a J-bolt with a 3" washer plate every so many inches...
I'm looking at determining the strength of a bolt with a washer connecting a wood bottom plate to concrete. Code in high wind or seismic areas typically dictate a square steel plate of a certain size in some cases. What resource (charts, formulas) can I use to find the capacity of such a...
Just learning Draftsight. A review of the help screens and exploring the interface didn't reveal the answers to these questions, which probably means I am using the wrong search terms, or it's buried in there somewhere I didn't know to look!
First - most CAD people now are using two monitors...
We are going to start working on some projects in seismic areas. I am not clear what kinds of details are usually included on electrical plans in these situations.
In the past, in some cases we would require the contractor to hire a licensed structural engineer to do calculations for...
Our normal practice is to use stainless steel fronts on electrical panels in surgery suites. We have a 150A disconnect for a machine that has to go in a Cath Lab, which we've been instructed to treat as if it is a surgery area for design purposes. However, designing this item in stainless...
Does anyone have any recommendations about CEM practice tests. The AEE has one for $80, but it has one and only one very bad review on the web. Not much of a recommendation. Has anyone taken the CEM review course from Vantage...
Is there any requirement in the NEC or NFPA 99 about emergency lighting percentage in operating rooms? Our practice has been to include 50% of the lighting on emergency power, 50% on normal power and 100% of medical task lighting on emergency power. (We also provide some lighting on battery...
We are working on a project with a small engine shop located in a corner of a large highbay warehouse. I finally argued the architect into putting a fire-rated wall around the engine shop, pointing out that it falls under NFPA 30A repair garages, and gasoline could be spilled, making it a...
A hospital is asking about equipment for testing Line Isolation Monitor (LIM) panels. There should be a portable meter that measures total leakage, and also a dummy leakage load that simulates leaky equipment. I haven't been able to locate a manufacturer for this test equipment, and the usual...
Operating rooms typically use Line Isolation Monitor (LIM) panels for power because they are wet locations. I am working in an operating room that is definitely so, the nurses tell me it is routinely wet during procedures. It has a single LIM panel on critical branch power. They've outgrown...
I have a fairly large building that is currently wired all with 208V, because the wiring was done probably int he 1950s. If it were being wired today, it would certainly use 480v distribution. THe building is 500,000 sq ft on 4 floors, and several of the floors have 20' cielings. That doesn't...
