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Questions and Answers
What is the distance multiplier for a 5 degree bend?
What is the distance multiplier for a 5 degree bend?
11.4
What is the distance multiplier for a 10 degree bend?
What is the distance multiplier for a 10 degree bend?
5.76
What is the distance multiplier for a 15 degree bend?
What is the distance multiplier for a 15 degree bend?
3.86
What is the distance multiplier for a 22.5 degree bend?
What is the distance multiplier for a 22.5 degree bend?
What is the distance multiplier for a 30 degree bend?
What is the distance multiplier for a 30 degree bend?
What is the distance multiplier for a 45 degree bend?
What is the distance multiplier for a 45 degree bend?
What is the shrink constant for a 5 degree bend?
What is the shrink constant for a 5 degree bend?
What is the shrink constant for a 10 degree bend?
What is the shrink constant for a 10 degree bend?
What is the shrink constant for a 15 degree bend?
What is the shrink constant for a 15 degree bend?
What is the shrink constant for a 22.5 degree bend?
What is the shrink constant for a 22.5 degree bend?
What is the shrink constant for a 30 degree bend?
What is the shrink constant for a 30 degree bend?
What is the shrink constant for a 45 degree bend?
What is the shrink constant for a 45 degree bend?
What is the formula used to find the shrink in a run of conduit?
What is the formula used to find the shrink in a run of conduit?
What is the formula used to find the distance between bends on a piece of conduit?
What is the formula used to find the distance between bends on a piece of conduit?
What is the formula used for finding the amount of adjustment needed when making parallel offsets?
What is the formula used for finding the amount of adjustment needed when making parallel offsets?
What is an offset bend?
What is an offset bend?
What is shrink in the context of conduit bending?
What is shrink in the context of conduit bending?
For parallel offsets that are exposed to view, the bends must be adjusted relative to the first conduit.
For parallel offsets that are exposed to view, the bends must be adjusted relative to the first conduit.
What is a kick in conduit bending?
What is a kick in conduit bending?
Parallel offsets can be made with conduit of different sizes by marking and bending at the center of each bend.
Parallel offsets can be made with conduit of different sizes by marking and bending at the center of each bend.
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Study Notes
Bend Distance Multipliers
- 5 degree bend distance multiplier: 11.4
- 10 degree bend distance multiplier: 5.76
- 15 degree bend distance multiplier: 3.86
- 22.5 degree bend distance multiplier: 2.61
- 30 degree bend distance multiplier: 2
- 45 degree bend distance multiplier: 1.41
Bend Shrink Constants
- 5 degree bend shrink constant: .044 or 1/16
- 10 degree bend shrink constant: .087 or 1/16
- 15 degree bend shrink constant: .132 or 1/8
- 22.5 degree bend shrink constant: .199 or 3/16
- 30 degree bend shrink constant: .268 or 1/4
- 45 degree bend shrink constant: .414 or 3/8
Formulas for Conduit Bending
- Shrink Formula: shrink = constant x offset rise (S = C x O)
- Distance Between Bends Formula: distance between bends = offset rise x distance multiplier (D = M x O)
- Adjustment for Parallel Offsets Formula: adjustment = constant x distance between centerlines (A = C x D)
Key Concepts
- Offset Bend: A double conduit bend formed with two equal angles in opposite directions, used to navigate around obstacles.
- Shrink: The reduction in run length when conduit is bent around an obstacle.
- Kick: A bend that changes direction in a conduit run.
True or False Insights
- For visible parallel offsets, bends must be adjusted relative to the first conduit (True).
- Parallel offsets can be accomplished with conduit of different sizes by marking and bending at the centers of each bend (True).
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