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BS EN60335-1：2002 cl15.1
! v- N: @ v( AFor IPX4 appliances, the horizontal centre line of the appliance is aligned with the pivot axis. s2 \( ]# Y3 s
of the oscillating tube. However, for appliances normally used on the floor or table, the" |" i: n. Y! T; B0 s
movement is limited to two times 90° from the vertical for a period of 5 min, the support being2 b# U- z! H+ _7 T0 F! s, j& y+ ?
placed at the level of the pivot axis of the oscillating tube.1 S1 T& z4 Y# K2 w. D' d" S
If the instructions for wall-mounted appliances state that the appliance is to be placed close to8 ^ h. U* W$ z' Z) {; S
the floor level and specifies a distance, a board is placed under the appliance at that7 X( V# q2 g, k% Q& }% P
distance. The dimensions of the board are 15 cm more than the horizontal projection of the
t6 G9 r* ^5 Y8 @# b/ A/ Lappliance.
/ ^2 V' L' O6 n: |Appliances normally fixed to a ceiling are mounted underneath a horizontal unperforated4 O+ m) h' `4 F% \8 ^5 n! x/ l# Y
support that is constructed to prevent water spraying onto its top surface. The pivot axis of the2 e* m8 X- A5 f0 E, `! |4 P* D
oscillating tube is located at the same level as the underside of the support and aligned
/ Q8 ^4 z' f+ ^9 L" @centrally with the appliance. The spray is directed upwards.
K$ Y4 B# L% @+ Q$ ?! n# WFor IPX4 appliances, the movement of the tube is limited to two times 90º from the vertical for
! f; q6 S" x. K' K! O0 ja period of 5 min.
3 ~" ^8 E4 V3 X) x" O [1 r6 T E2 U标准写的很清楚角度应该是左右各90度。那个正负180是指的一个周期 |
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