三中三免费大全

Toll-free hotline: 4000-158-448
Information Default Ad

How Electric Screwdrivers Protect-More Speed Needs Safety

Article source: 作者: 人气: - 发表时间:2013-01-25 14:51:00 Net Editor: Author: Popularity: - Published: 2013-01-25 14:51:00

Keywords of this article : Electric screwdriver

Electric screwdriver : An automatic tool that transmits torque through a motor and controls torque through a clutch. Common in-line electric screwdrivers , low-voltage DC electric screwdrivers .

There are four main types of safety protection for electric screwdrivers :

1. Class I safety protection tools. The tools must be grounded and insulated. If the insulation is damaged, it appears that the voltage of the screwdriver bit is not zero.

2. Class II safety protection tools, which are double insulated or reinforced. When the basic insulation is damaged, the operator can repair it with additional insulation.

3. Class III safety protection tools, which are powered by a safe voltage (eg, a DC electric screwdriver ). |

Reprinted please indicate the source: ashbyst.com

Link to this article: http://ashbyst.com/Article/diandongluosidaodexu_1_1.html

电动螺丝刀 Keywords in this article: Electric screwdriver