UPS直流供电需要做接触电流测试吗?
: s5 d* Q# U0 q ^# o/ s有反馈保护的就不需要了,没有反馈保护的是不合格的UPS。所以结论是不需要做touch current测试,依据RD clause 5.1Equipment that is designed for multiple connections to the AC MAINS SUPPLY, only one of which is required at a time, shall be tested with only one connection.ONLY 连接到ac电网才需要测试touch current.
7 u8 V2 K# i( f* @3 _6 H) I1.3 General requirements4 u( C0 d- e" X
Additional subclause:' O/ j. i7 ~( u1 `0 k
1.3.101 The frame or chassis of the equipment shall not be used to carry current other than the allowable touch current as determined in the test specified in 5.1 of the RD.* I$ m% s4 E: `! P
FF.1 General
, U% c7 u8 c' w. C9 q. Q; Y5 HA UPS shall not allow excessive touch currents to be available between any pairs of input terminals of the UPS during its STORED ENERGY MODE of operation. Where the measured open circuit voltage does not exceed 30 V rms (42.4 V peak, 60 V d.c.), the touch current measurement need not be taken. |