The interval for expansion joints expressed in meters is approximately what value?

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Multiple Choice

The interval for expansion joints expressed in meters is approximately what value?

Expansion joints in long, straight runs of duct banks are placed to absorb thermal expansion and contraction of the conduit system. In typical OSP design practice, a spacing of about 100 feet between joints is commonly used, which is roughly 30.5 meters. This interval balances the amount of movement that can occur between joints with the cost and complexity of installing joints. Shorter spacings (around 20–25 m) would mean more joints and higher cost, while a longer spacing (around 35 m) could allow more movement between joints and risk damage. Therefore, the interval expressed in meters is about 30.5 m.

Expansion joints in long, straight runs of duct banks are placed to absorb thermal expansion and contraction of the conduit system. In typical OSP design practice, a spacing of about 100 feet between joints is commonly used, which is roughly 30.5 meters. This interval balances the amount of movement that can occur between joints with the cost and complexity of installing joints. Shorter spacings (around 20–25 m) would mean more joints and higher cost, while a longer spacing (around 35 m) could allow more movement between joints and risk damage. Therefore, the interval expressed in meters is about 30.5 m.

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