After examination of the cable joint x-rays that I had taken yesterday, we decided to cut some of the joints open to inspect what they looked like in the rubber compared to the images.
The results were, as this post is titled, surprising. What we expected on the x-rays and in the rubber for the failed joints that came from New Caledonia were as expected. The void spaces and so forth clearly seen and felt, so we didn't really think too much about it.
We had prepared one set of perfect joints, and one joint where one cable was perfect, one was moisture loaded and one degreaser loaded. The degreaser had produced void spaces but they weren't the size nor shape as expected. In the moisture loaded one, there were also void spaces but smaller than those seen in the samples opened in New Caledonia. Then came the interesting part.
For the perfect joint in the set of three, there were voids. There should not have been any. This was quite a surprise, and unexpected to say the least because it meant the theory that moisture caused voids could be bust. To try and validate this, we then opened up two more joints, the perfect ones made in the lab.
Well, the first one of the perfect joints we opened up, it appeared that there were no voids. Then on closer inspection.... there were some very small ones present. However, the size and density was much much lower than the other one so far. Going for the trifecta, we opened the second of the perfect joints and thankfully it didn't have voids. This is still a bit puzzling why some would and wouldn't have the voids...
The other thing of note, was that the moisture loaded joint STILL had water inside the voids when we cut it open.....
So, at the moment, the people from Goro have been told about it, and someone might be coming to take a look at them. Just have to see what they think of it all.
The results were, as this post is titled, surprising. What we expected on the x-rays and in the rubber for the failed joints that came from New Caledonia were as expected. The void spaces and so forth clearly seen and felt, so we didn't really think too much about it.
We had prepared one set of perfect joints, and one joint where one cable was perfect, one was moisture loaded and one degreaser loaded. The degreaser had produced void spaces but they weren't the size nor shape as expected. In the moisture loaded one, there were also void spaces but smaller than those seen in the samples opened in New Caledonia. Then came the interesting part.
For the perfect joint in the set of three, there were voids. There should not have been any. This was quite a surprise, and unexpected to say the least because it meant the theory that moisture caused voids could be bust. To try and validate this, we then opened up two more joints, the perfect ones made in the lab.
Well, the first one of the perfect joints we opened up, it appeared that there were no voids. Then on closer inspection.... there were some very small ones present. However, the size and density was much much lower than the other one so far. Going for the trifecta, we opened the second of the perfect joints and thankfully it didn't have voids. This is still a bit puzzling why some would and wouldn't have the voids...
The other thing of note, was that the moisture loaded joint STILL had water inside the voids when we cut it open.....
So, at the moment, the people from Goro have been told about it, and someone might be coming to take a look at them. Just have to see what they think of it all.
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