Table 4-3 1Am(FEM)
− 6 −
Load spectrum
Load
distribution
Definitions
Cubic
mean
value
Average daily
operating
time(h)
Total
operating
time(h)
1
(light)
2
(medium)
3
(heavy)
Mechanisms or parts
thereof, usually subject to
very small loads, seldom to
maximum loads.
k ≦ 0.50
2 - 4 6300
Mechanisms or parts
thereof, usually subject to
small loads, but rather often
to maximum loads.
0.50 < k
≦ 0.63
1 - 2 3200
4
(very heavy)
Mechanisms or parts
thereof, mainly subject to
maximum or almost
maximum loads.
0.80 < k
≦ 1.00
0.25 - 0.5 800
Mechanisms or parts
thereof, usually subject to
medium loads and
frequently to maximum
loads.
0.63 < k
≦ 0.80
0.5 - 1 1600
Load spectrum
Load
distribution
Definitions
Cubic
mean
value
Average daily
operating
time(h)
Total
operating
time(h)
1
(light)
2
(medium)
3
(heavy)
Mechanisms or parts
thereof, usually subject to
very small loads, seldom to
maximum loads.
k ≦ 0.50
4 - 8 12500
Mechanisms or parts
thereof, usually subject to
small loads but rather often
to maximum loads.
0.50 < k
≦ 0.63
2 - 4 6300
4
(very heavy)
Mechanisms or parts
thereof, mainly subject to
maximum or almost
maximum loads.
0.80 < k
≦ 1.00
0.5 - 1 1600
Mechanisms or parts
thereof, usually subject to
medium loads and
frequently to maximum
loads.
0.63 < k
≦ 0.80
1 - 2 3200
Table 4-4 2m(FEM)
()
()