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4.14.6 Plug-ballast/transformers and mains socket-outlet-mounted luminaires shall not impose
1 y! A' J% {# Q$ B( Hundue strain on socket-outlets.
1 A. r' V9 _: c4 x, q+ wCompliance is checked by the following test. The plug-ballast/transformer or mains socketoutlet-- o* B, h9 q W: G7 @
mounted luminaire is inserted, as in normal use, into a fixed socket-outlet pivoted about
; \* ?1 _6 E J6 w/ A* j1 }a horizontal axis through the centre lines of the contact tubes at a distance of 8 mm behind the
. A% Q6 x+ x+ Z6 j) Z6 @ V/ Y4 rengagement face of the socket-outlet.
& O+ T! t9 G6 p; wThe additional torque which has to be applied to the socket-outlet to maintain the engagement
: M( F, A3 l7 T7 gface in the vertical plane shall not exceed 0,25 Nm.3 Z6 ?# G* e! x1 j, n
For adjustable mains socket-outlet-mounted luminaires, the total torque transmitted to the
3 @8 V, M0 d1 Y! Zsocket-outlet during adjustment shall not exceed 0,5 Nm.
1 Y, G% _" Z- U4 ]. {1 nThe socket-outlet used for the test shall have the earth contact (if any) removed unless the- K, X) `- O* Q/ u/ ?
socket has shuttered pin receptacles that are uncovered by the action of inserting the earth
( H; C+ K2 h% u& g$ _pin.
& g' S1 e# \% j1 M( F. u5 X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?
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