How should buffer tubes be secured within a splice closure?

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The correct method for securing buffer tubes within a splice closure is to use tie wraps allowing slight movement. This approach is essential because it provides a balance between securing the fibers and allowing for some degree of flexibility. When buffer tubes are secured too tightly, like with screws or clamps, there is a risk of damaging the fibers inside them due to excessive tension and restriction of movement.

Using tie wraps with a degree of looseness permits the buffer tubes to accommodate minor shifts and adjustments that can occur from temperature changes, installation adjustments, or when the closure itself is subjected to environmental factors. This slight movement capability helps maintain the integrity of the fibers and ensures they are not subjected to undue stress, which could lead to issues such as micro-bending or breakage.

In contrast, methods like using screws, glue, or clamps are less suitable for this application as they can cause rigid mounting, potentially compromising the performance and reliability of the fiber optic splicing due to lack of flexibility.

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