The insulation resistance of long-term shelved or damp tools shall be measured before use to see whether they meet the requirements. The requirements for insulation resistance are: class I is not less than 2 megohm, class II is not less than 7 megohm, and class III is not less than 10 megohm.Safety problem should be paid attention to when using hand-held electric tools---2
2022 06/28
The insulation resistance of long-term shelved or damp tools shall be measured before use to see whether they meet the requirements. The requirements for insulation resistance are: class I is not less than 2 megohm, class II is not less than 7 megohm, and class III is not less than 10 megohm.