When bending conduit, what is the purpose of using a deduct?

Using a deduct when bending conduit serves a critical purpose in ensuring that the final installed length of the conduit accurately fits its intended routing. When a conduit is bent, the material in the bend stretches and compresses, which can lead to a reduction in the overall length of the conduit run. The deduct accounts for this length reduction, allowing for precise measurements and ensuring that the conduit reaches its designated connection points effectively without any gaps or misalignments.

This attention to detail is essential in electrical work, as properly fitting conduit helps maintain both safety and functionality. When the deduct is not taken into account, the result can be an improperly fitted conduit that could lead to difficulties in installation or future connectivity issues. Thus, understanding and applying the concept of the deduct during the bending process is crucial for maintaining the integrity and efficiency of conduit installation.