What is the maximum number of 90-degree bends allowed, unless within 33 ft of the box or if you increase pipe size?

Prepare for the BICSI Copper Test with our comprehensive quiz. Utilize flashcards and multiple-choice questions to enhance learning with hints and explanations. Ace your exam with confidence!

Multiple Choice

What is the maximum number of 90-degree bends allowed, unless within 33 ft of the box or if you increase pipe size?

The main idea is that when pulling copper conductors through conduit, you should keep the number of 90-degree bends between pulling points to a minimum to avoid excessive friction and a hard pull. The standard limit is two bends, which keeps the pull length reasonable and reduces the risk of damaging the cables or fittings. The note about being within 33 feet of the box or using a larger conduit provides exceptions that allow more bends, because the pull becomes easier with a shorter distance or with a larger conduit reducing friction. So, under normal conditions, the maximum is two 90-degree bends, which is why two is the correct choice.

The main idea is that when pulling copper conductors through conduit, you should keep the number of 90-degree bends between pulling points to a minimum to avoid excessive friction and a hard pull. The standard limit is two bends, which keeps the pull length reasonable and reduces the risk of damaging the cables or fittings. The note about being within 33 feet of the box or using a larger conduit provides exceptions that allow more bends, because the pull becomes easier with a shorter distance or with a larger conduit reducing friction. So, under normal conditions, the maximum is two 90-degree bends, which is why two is the correct choice.

More practice questions