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◆ 5 ◆ 와이어 슬링, 체인 슬링 유형별 안전율 |
2007-02-14 20:01:18 |
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| ★ 와이어 슬링 유형별 안전율 |
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0 |
60º> |
60º> |
0 |
60º> |
90º> |
120º> |
0 |
60º> |
90º> |
120º> |
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1 |
0.75 |
0.5 |
2 |
1.73 |
1.41 |
1 |
1 |
0.87 |
0.71 |
0.5 |
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1 |
1.4 |
1.7 |
1.5 |
2.1 |
2.6 |
2 |
2.8 |
3.5 |
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0-90º
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0-90º
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1.6 |
1.25 |
0.85 |
1.3 |
0.87 |
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Type |
S, W, L-(Safe Working Load ) |
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Cradle Sling
Lifting coils, steel strip, etc.
Basket Hitch
S,W,L = 1.4 x W,L,L of sling
Protect Rope from sharp corners. |
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Cradle Slings
Lifting boilers and packaging cases, etc.
Double Basket Hitch
S,W,L = 2.1 x W,L,L of sling. |
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Halshing Slings
Method using a single sling in place of an endless sling where a ‘bight’ is required. A stirrup fitted temporarily in the bight will minimise damage to the sling.
Double and Choked.
S,W,L = 1.6 x W,L,L of sling. |
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Double Wrap Slings
Note how the double wrap grips the load and helps to prevent it from slipping sideways out of the slings.
Double Wrap Basket Hitch
S,W,L = 2.1 x W,L,L of sling. |
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Combination Slings
Timber steel sheets and packing cases, etc.
N.B. Maximum angle between legs is 90º |
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Reeving Slings
Lifting tubes, bars and rods, etc.
Double Choke Hitch
S,W,L = 1.1 x W,L,L of sling. |
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The working load limits of slings
made from general engineering ropes to BS EN 12385-4 should conform to BS EN 13414-1: 2003 |
| ★ 체인슬링 유형별 안전율 |
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Angle of Indication |
- |
- |
<45ø |
45ø-60ø |
<45ø |
45ø-60ø |
<45ø |
45ø-60ø |
- |
<45ø |
45ø-60ø |
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Load Factor |
1 |
0.8 |
1.4 |
1 |
1.12 |
0.8 |
2.1 |
1.5 |
1.6 |
1.4 |
2.1 |
★온도에 따른 안전율
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Angle |
>45ø |
45ø-60ø |
>45ø |
45ø-60ø |
>45ø |
45ø-60ø |
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Load factor |
0,7 |
1 |
0.7 |
1 |
0,7 |
0.7 |
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Shock |
slight shocks |
medium shocks |
strong shocks |
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Load factor |
1 |
0,7 |
not permissible | |
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