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Showing results for tags 'testing'.
Found 3 results
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Hi All I have an interesting design challenge with smoke alarm locations. My plan is to install as follows: Hallway - (Optical) Landing - (Ionising) Kitchen - (Heat) Now the room that poses the problem is the landing as it's much bigger and higher than normal (the landing is actually a large upper drawing room). Firstly I'm going to have to fit two alarms (one at each end) as one centrally just about fails the 3m from bedroom requirement. Secondly it's a vaulted ceiling. I do have a flat area at the top but it's close to 4m high. I can fit them on the slope but the regs state that they have to be 600mm from the apex so I'm not gaining much. So testing these two alarms is going to be a challenge. They'll be interlinked so of course I can hit the test on the ones in the hall/kitchen will will confirm the audible function of these high up alarms. But to test them individually the best I can come up with is a bean pole!! You can get remote switches for testing/silencing but they seem to all rely on radio linked alarms which add considerably to the cost. Again though all they do is test all alarms at once. So, is the action of hitting the test button on one alarm and the others giving an audible result still a genuine test? Or does pressing the test button on each provide a more thorough test. I've read the manuals for most of the major brands and all say to test each alarm individually. Am am I missing any other solution? TTFN
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This here piling mat that I'm sorting out needs to be tested with a plate test. And to do that I need an 8 ton reaction load. Following the by now normal steeeeep learning curve I learn from some that it is common to use a loaded 20 tonner's back axle, from others that I need a dead weight, like a 10 ton digger (no suspension). Where do I get a 'dead weight' 8 ton reaction load? (Keep it clean, please @Nickfromwales @ProDave) If I have 32 tons of lorry parked on my piling mat, and the test plate and hydraulic ram is put under the back axle, won't the test rig merely tend to jack the lorry back off it's suspension system? And thus invalidate the test? Here's an example of it done with a wagon (sprung) And here with a digger (unsprung) What I want is Vorsprung durch Technik, fellas! And it'd be good if I knew the right Technik.
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Just a quick post to ask if anyone knows the rough cost of Plate Bearing tests? SPONS doesn't list it. Whats a Plate Bearing test? Why do I need it? The pilers won't come on site without one; and if you are using one of these, you can see why. All 37 tonnes of it....
