标题: 风筒19.102非正常温升 [打印本页] 作者: gudongman 时间: 2012-1-11 21:35 标题: 风筒19.102非正常温升 2-23说:
power input.
A sheet of polyethylene approximately 200 mm x 200 mm and having a thickness of 50 μm is
placed against the air-inlet and moved in any direction in order to reduce the airflow so that
the most unfavourable conditions are established.
The test is carried out for 30 min.
The test is repeated with the airflow directed horizontally.
NOTE The most unfavourable conditions are usually obtained by positioning the polyethylene sheet so that the
thermal cut-out is prevented from operating.