2. EPS internal cooling fan of power is affected by microcomputer control of speed regulation of fan (EC fan), only in the case that the temperature rise to a certain numberand the internal cooling fan begin to work, It must be noticed that the installation doesn’t block cooling fen and ventilation . 3. EPS ‘s position must be far away from the fire origin and combustible, and ordinary sundry don't pile up in EPS;s position It is unfavourable to fire safety and easy to attract rodents who chew on cable and cause accidents;

4. The moist air in spring and summer is prone to make EPS internal control condensation on printed circuit boards, thus trigger EPS control fault, so EPS try choosing moisture proof space;

5. There cannnot too much dust in EPS’ position ,or electrostatic interference The positive charge dust in the circuit board will damage EPS panel at the same time EPS equipment should have good grounding;

6. The area can't close to windows and doors, in order to prevent the water immersion, the rain, the sun, and influence EPS normal life;

7. To prevent EPS power supply breakdown, worker should examine whether voltage is normal at the voltage supply and the detection of utility, zero, whether they are dislocation, especially of double road with a backup utility or generator of power network, and check the first all the way is consistent with the first two main electricity reserve power supply of zero

8. EPS before electric start the output circuit must be the root of the specifications of the switch power supply circuit of reasonable configuration cable and load, emphatically detection circuit short circuit, sequence and zero, the sequence. After power checking the actual detection circuit load voltage circuit data such as parameters, contrast circuit switch specifications, appropriate adjustment, avoiding overloading phenomenon;

9. EPS installation is completed, checking the normal starting on the equipments, emergency start, mandatory start, linkage start one by one, repairing the existing problems in time, and do the control key and lock the handover.