|
4.14.6 Plug-ballast/transformers and mains socket-outlet-mounted luminaires shall not impose
" T5 S- C% K3 `7 k1 o( `3 K; L7 Uundue strain on socket-outlets.
5 M5 I- J/ h3 I/ a; N3 R' f# _Compliance is checked by the following test. The plug-ballast/transformer or mains socketoutlet-
9 s. l2 l0 {' Z2 c8 i. d" T5 a& Rmounted luminaire is inserted, as in normal use, into a fixed socket-outlet pivoted about# @8 f, M+ \9 Q5 C* y
a horizontal axis through the centre lines of the contact tubes at a distance of 8 mm behind the
& L4 n$ R- |, K) }engagement face of the socket-outlet.# D& C2 ?* G% I6 _2 S' n
The additional torque which has to be applied to the socket-outlet to maintain the engagement
0 h. F; ^$ k1 ~6 Z; o% Hface in the vertical plane shall not exceed 0,25 Nm.
5 ^9 i& }) W4 K M5 xFor adjustable mains socket-outlet-mounted luminaires, the total torque transmitted to the
; v6 F; u- Y$ s9 x1 {0 F9 isocket-outlet during adjustment shall not exceed 0,5 Nm.: [9 ^$ ] |' R4 c
The socket-outlet used for the test shall have the earth contact (if any) removed unless the+ Z9 t; \% h* I5 S! m- s
socket has shuttered pin receptacles that are uncovered by the action of inserting the earth
4 f; Y* Q# E! W0 M1 Upin.
1 r0 h$ [; `* _$ B9 F- A防水式的插头式变压器,见图,测扭矩时,以哪个平面为零位(中心平面)?平面1,为插入到普通插座上的接合面,平面2为插入到防水插座时的一个支点,哪个才是对的?
- Y1 T) E8 z w& S4 f |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册安规
x
|