A saw is an electric tool for cutting solid materials, especially wood or plastic. For that purpose, a saw blade with sawteeth at its brim is set into motion in order to create a dividing line through the removal of sawdust of the object to be cut.
In the following, different types of saws (circular saws, saws, power saws, jig saws) are presented.
A circular saw uses a rotating and toothed metal disc which is led through the material that is to be cut. These circular saws are either hand-held device or installed in workbenches.
A power saw or chainsaw is a hand-held saw that is commonly used for wood work or forestry. A saw chain runs along a guide bar which is led through wood.
A jig saw motivates a one-side-clamped saw blade in a lifting movement and allows curved cuts in diverse materials.
Due to the operation with an electromotor, alternating electric and magnetic fields can occur even in the kHz region.
| Measurand | Value | Feature | Remarks |
|---|---|---|---|
| electric field strength | 533 V/m (maximum) | - | at the surface of the device at 50 Hz [1] |
| electric field strength | 1.39 kV/m (maximum, measured) | - | at the surface of the device at 50 Hz; handheld circular saw [1] |
| magnetic flux density | 100 µT–6 mT (maximum) | - | range that results from the measurement of six different devices [2] |
| magnetic flux density | 2.11 mT (maximum) | - | at the surface of the device at 50 Hz; portable circular saw [3] |
| magnetic flux density | 2.186 mT (maximum) | - | at the surface of the device at 50 Hz [3] |
| Measurand | Value | Feature | Remarks |
|---|---|---|---|
| electric field strength | 1.631 kV/m (maximum, calculated) | - | at the surface of the device at 50 Hz [1] |
| magnetic flux density | 0.9–30 µT (maximum) | - | at a distance of 30 cm [4] |
| magnetic flux density | 4 µT (maximum) | - | maximum value at a distance of 61 cm [4] |
| magnetic flux density | 5–100 µT (maximum) | - | at a distance of 15 cm [4] |
| magnetic flux density | 727 µT (maximum, calculated) | - | at the surface of the device at 50 Hz [3] |
| Measurand | Value | Feature | Remarks |
|---|---|---|---|
| electric field strength | 1.456 kV/m (maximum) | - | at the surface of the device at 50 Hz [1] |
| magnetic flux density | 32.47 µT (maximum) | - | spatially averaged value at distances from 3 - 30 cm [5] |
| magnetic flux density | 1.417 mT (maximum, calculated) | - | at the surface of the device at 50 Hz [3] |
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