永久性安裝設備的漏電流問題

feazhp

映像中，UL 60950-1中，固定安装的（permanently installation），是不需限制测漏电流，只需要加一個警告語句即可。

誰能幫找找條文出處。（最好能貼出來）

我的UL 60950-1打不開，很郁悶。。。

ejfgde

BARRY:

见下文, 还是有限制的,只是限制的方法不同,条例是我在IEC60950中找的,回头我也找UL60950看看是不是一样的.


5.1.7 Equipment with touch current exceeding 3,5 mA
For STATIONARY PERMANENTLY CONNECTED EQUIPMENT or STATIONARY PLUGGABLE EQUIPMENT
TYPE B having a main protective earthing terminal, if the TOUCH CURRENT measurements
exceed 3,5 mA r.m.s., all of the following conditions apply:
– the r.m.s. PROTECTIVE CONDUCTOR CURRENT shall not exceed 5 % of the input current per
line under normal operating conditions. If the load is unbalanced, the largest of the three
line currents shall be used for this calculation. To measure the PROTECTIVE CONDUCTOR
CURRENT, the procedure for measuring TOUCH CURRENT is used but the measuring
instrument is replaced by an ammeter of negligible impedance; and
– the cross-sectional area of the PROTECTIVE BONDING CONDUCTOR shall be not be less than
that of the conductors in table 3B (see 3.2.5), with a minimum of 1,0 mm2 in the path of
high PROTECTIVE CONDUCTOR CURRENT; and
– one of the following labels, or a label with similar wording, shall be affixed adjacent to
the equipment AC MAINS SUPPLY connection:
WARNING
HIGH LEAKAGE CURRENT
EARTH CONNECTION ESSENTIAL
BEFORE CONNECTING SUPPLY
WARNING
HIGH TOUCH CURRENT
EARTH CONNECTION ESSENTIAL
BEFORE CONNECTING SUPPLY