1. Ar dúshraith dhaingean nó ar bhinse oibre, suiteáilte i gceart, níl aon chreathadh agus aon mheán creimneach ag an gcomhshaol;
2. The fluctuation range of the power supply voltage should not exceed ±10 percent of the rated voltage, the power supply of the testing machine should be reliably grounded, and the frequency fluctuation should not exceed 2 percent of the rated frequency;
3. Is é an teocht an tseomra 10 céim -35 céim, agus nach bhfuil an taiseachas coibhneasta níos mó ná 80 faoin gcéad.
