| 摘要 |
PCT No. PCT/DE95/01357 Sec. 371 Date Apr. 15, 1997 Sec. 102(e) Date Apr. 15, 1997 PCT Filed Oct. 3, 1995 PCT Pub. No. WO96/12332 PCT Pub. Date Apr. 25, 1996An overvoltage arrester (8) consists of a plurality of limiter elements (15) connected in series. Parallel to this series of limiter elements (15) is a series of controlled switches (18). The two circuits interconnect ladder-style by means of cross links (23), so that individual limiter elements (15) can be tested by closing the switches (18). The limiter elements (15) are dimensioned so that each limiter element (15) has a breakdown or forward voltage which is less than the lowest operating voltage to be expected at the overvoltage line (8). |
