抄録
It is well-documented establishing electromagnetic compatibility (EMC) is important for using medical device in hospitals. We measured the electric field intensity in new hospital in before any patients came into the hospital for the very first time and 6 months after the opening of the hospital. FM radio signals, UHF TV signals, and cell-phone system base stations were strongly detected at the windows of the upper floors. There was no great difference in measured levels between before and after the opening of the hospital. There were no cell-phone unit signals before the hospital opened its doors to patients, but were very strongly detected 6 months thereafter. In this study, the maximum electrical intensity was 0.28 V/m from cell-phone system base stations. This value was lower than the EMC marginal value of the general electronic medical device specified in IEC 60601-2-2 (3 V/m). However, there were no cell-phone system base station signals in some area. Measurements 6 months after the opening of the hospital revealed very strong cell-phone unit radio waves in the hospital. To promote greater EMC safety, the hospital should prepare countermeasures to improve these conditions.
