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Update: Sorry, it's been a while. The contractor returned to install all new "shielded" wire conductors from the controller to the lights. The shielding is essentially tin foil between the outer sheathing and the conductors. The shielding is obviously not grounded in this case. We changed the...

I will confirm the load with the contractor. With the new power source, it should have lots of capacity at 15 amps, and around 110 volts.

Nothing that I'm aware of for cycling on the pattern of the blue streak. Does the wire cover need to be tin foil, or could I use a thin galvanized steel conduit? Would the GS conduit have the same effect as the foil, or does the conduit need to be aluminum? I haven't seen any ham radio...

The power was from the same source, which moves the needle away from the power source. I've plugged the system into a different power source/breaker from the panel. It's a 15 amp service with a single 14-2 conductor and one plug on it. The previous power source was a highly loaded circuit that...

There is a manufacturer's site. Tr!mlight is spelled with an "i". I'm using a pseudo name to avoid liability. The contractor is a one-person operation. He's been in touch with the technical support folks from the manufacturer.

Thank you waross. I'll give this a shot if the alternative power source doesn't tune up the problem. Will post again in the morning.

This is a proprietary system, and I don't see it sold online. Only "professional" installers that are associated with the vendor may sell and install. That said, the wires and lights look like the most cheaply produced garbage from China that you would find at Princess Auto (I'm in Western...

Thank you for you comments, RedSnake. I was thinking the disturbance, if caused by the garage lights or ballasts, would be proximity-based if the disturbance is active only when the wires go through the attic space. The disturbance occurs when the garage lights are off. The contractor...

I will try a fresh power source. I'll try something with a short distance from the panel and a big extension cord. That will be a lot less work than shielding the wires. Thank you!

I've had a contractor at my house (single family) for several days. He's been endeavoring to figure out what's causing a signal interference issue with my Tr!mlight system that he installed. For days I suggested he, "figure it out for himself," but his presence at my the house is starting to...

I'm not much of a hydraulics guy, but I do have a mech degree and I practice a bit in piping. A client asked if we could provide services/plans to convert a box culvert (old, wooden, bad condition during inspection) to a series of circular CMP culverts. In lieu of a more complete study of the...

I've been tasked with estimating the remaining time to required repairs for a tubular corrugated steel structure with a potash/mining muck backfill and traffic over the backfill. The tube was placed in a mining drift and the perpendicular drift above has the traffic. The side of the tubes are...

Thank you KootK! Much appreciated.

Thanks for your response EdStainless I utilized the nickel institute documents and website for my cursory research. I can confirm MTI-global requires a membership to view their documents. If they have anything definitive on caustic/acid cocktail and you're willing to share, please do so...

I've been asked to select materials in the bid stage for a chemical processing facility. We do tanks, but typically the material selection for our tanks is one step up the engineering chain. I've performed some cursory research, and I have some undergraduate-level training in material...

That is fascinating masonrygeek! I'll dig into those standards. phamENG, I agree testing the system is ideal. I'll see if that's possible for this project. EdStainless, yes it's a highly corrosive process. I've found there's a loose correlation between chloride content and compressive...

Thank you for your response dhengr and MotorCity, In this case, I think there's strong evidence for chlorides. The wall is at a Canadian potash mine. There are chloride stalactites on the surface of the wall (image attached). The stalactite is on the left hand side of the image. There's...

Thanks for your feedback MotorCity. I agree, this is likely a replacement project. I'm planning to perform a strength calculation, but need to test for the compressive strength side of the equations. Any feedback on the diameter of the cores? Have you done it previously?

I've been asked to assess a degraded CMU wall, and it looks as though it's in poor condition. I can see into the cells in a handful of locations, so that gives you an idea of the condition. The site is subject to high chlorides, and I suspect chlorides are culpable for the degradation. I'm...

I've opted to back calculate the maximum allowable simply-simply supported beam angle (at the tips) considering a simply supported beam based on the Annex D requirements for the least onerous (L/180) requirements. I trust (viewers) you'll agree this is a tip slope of 1.019-degrees...