Can fiber optic cold splices break
Once the two optical fibers are joined with a splice, they cannot be taken apart and put back together, as they can if you join them using connectors. Broken a few fibers just trying to break out a buffer tube I never have to splice in the cold. 90% of the time I'm in the lab with the heat on or if the rig can't make it to the splice location we bring a tent heater and a UTV. The performance of a fiber optic splice is determined by a number of factors, including the quality of the fiber, the cleanliness of the splice, and the techniques used to make the splice. It fails where we touch it—where glass meets human hands, where theory meets dust, humidity, and haste.
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