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16.15 Loading
7 Z) F, d/ |$ a' b9 P. K- i+ v" l16.15.1 A supporting device shall support a load equal to four times the total mass to be supported under+ p) ~* h/ E7 S# m" W
intended operating conditions for 1 h. The load shall be applied in the direction of actual loading0 i5 f( b' S! n5 Z2 J3 B
conditions." { ~6 x/ L* ~; ^* H5 F0 G
16.15.2 Where more than one support is provided, the load shall be distributed as follows:
0 h7 Y2 h7 j1 ]$ B0 q; J0 a% }(a) where the parts supported are no more than 11.3 kg (25 lb), the full load shall be applied to& h: p" X/ }9 R0 K. [5 Z- x
each support; or
+ P* F! u+ ~/ v(b) where the parts supported are more than 11.3 kg (25 lb), the distribution of the load shall, r# i! c/ ^' Q9 g5 o! D" b+ L- s
be similar to that encountered in the field.( |4 A: |: y6 y7 a7 L4 e4 F
16.15.3 There shall be no deflection or deformation either during or after loading that reduces electrical% N" W& y3 Z: T
spacings or compromises safety. |
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