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BS EN60335-1:2002 cl15.1
) R/ q d0 B* x* a; w" c# mFor IPX4 appliances, the horizontal centre line of the appliance is aligned with the pivot axis# X& ]8 O) }& l. T4 o
of the oscillating tube. However, for appliances normally used on the floor or table, the7 \& B; m; Q2 E1 b3 V" M5 _; d
movement is limited to two times 90° from the vertical for a period of 5 min, the support being
" M8 N+ p/ G3 B5 [0 v2 X" t' dplaced at the level of the pivot axis of the oscillating tube.4 w! X' w& I4 @2 k
If the instructions for wall-mounted appliances state that the appliance is to be placed close to
" c6 b$ _9 t. ?, ]6 Qthe floor level and specifies a distance, a board is placed under the appliance at that
9 r' ^+ P# t# V# d8 u3 a& N/ E. kdistance. The dimensions of the board are 15 cm more than the horizontal projection of the4 a M: d2 y: x$ U: p( T
appliance.
/ o& p4 O. A. e% qAppliances normally fixed to a ceiling are mounted underneath a horizontal unperforated$ `# ]7 @4 j: G8 a5 R' B
support that is constructed to prevent water spraying onto its top surface. The pivot axis of the/ ~4 m: O( ]+ m
oscillating tube is located at the same level as the underside of the support and aligned
L: v0 \. }9 V! f" W0 V' l O: ocentrally with the appliance. The spray is directed upwards.1 l1 `. d |- C1 u. p5 u
For IPX4 appliances, the movement of the tube is limited to two times 90º from the vertical for
; S& b: G- C6 ]a period of 5 min.
- @- V9 d2 B! s! C1 Z" t4 l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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