1. What Is Conduit Shrink Calculation?

Conduit shrink calculation is essential in electrical work for determining how much a conduit will shorten when bent at specific angles. This helps electricians make precise bends and ensure proper conduit length after bending.

2. How Does The Calculator Work?

The calculator uses the conduit shrink formula:

Where:

• \( \text{Angle} \) — Bend angle in degrees
• \( \text{Shrink Per 90} \) — Shrinkage amount for a 90-degree bend in inches

Explanation: The formula calculates the proportional shrinkage based on the bend angle relative to a standard 90-degree bend.

3. Importance Of Conduit Shrink Calculation

Details: Accurate conduit shrink calculation is crucial for proper electrical installation, ensuring conduits fit correctly between connection points and maintaining code compliance.

4. Using The Calculator

Tips: Enter the bend angle in degrees and the shrinkage amount for a 90-degree bend in inches. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is conduit shrink?
A: Conduit shrink refers to the reduction in length that occurs when a conduit is bent, which needs to be accounted for in electrical installations.

Q2: How is shrink per 90 determined?
A: Shrink per 90 is typically determined by conduit size, type, and bending method, and is often provided in manufacturer specifications or trade manuals.

Q3: Does this calculation work for all conduit types?
A: The formula works for various conduit types, but the shrink per 90 value may vary depending on the conduit material and size.

Q4: Can I use this for angles greater than 90 degrees?
A: Yes, the formula works for any angle, as it proportionally calculates shrink based on the relationship to a 90-degree bend.

Q5: Why is accurate conduit shrink important?
A: Accurate calculations prevent conduit lengths from being too short, ensuring proper electrical installation and avoiding material waste.