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Electro-Voice EVF/EVH User Manual 39
6.0 Rigging-Strength Ratings and Safety Factors (cont’)
6.3 All-Eyebolt Structural Ratings
The guidelines for simplified all-eyebolt structural ratings cover the following information:
1. Maximum number of enclosures.
2. Maximum weight of the cluster.
3. WLL for eyebolts.
4. Suspension-line angles.
5. Left-to-right all-eyebolt cluster angles.
THE MAXIMUM LOAD, MAXIMUM NUMBER OF ENCLOSURES AND MINIMUM NUMBER
OF SUSPENSION LINES FOR ALLEYEBOLT CLUSTERS ARE LISTED IN TABLE 8.
Table 8:
Maximum load, maxiumum number of enclosures and minimum number of
suspension lines for all-eybolt clusters
LIMITS FOR ALL-EYEBOLT CLUSTERS ONLY
Maximum Working
Load Limit
Maximum Number of
Enclosures
Minimum No. of Suspension Lines
291 lb (132 kg) Two, either vertical or horizontal Two (for any all-eyebolt cluster)
Figure 24a:
Limitations for vertical all-eyebolt clusters
Figure 25b:
Limitations for horizontal all-eyebolt clusters
Minimum of Two
Suspension Lines
Maximum of Two
Enclosures
Max. Cluster Weight
286 lb (130 kg)
Minimum of Two
Suspension Lines
Maximum of Two
Enclosures
Max. Cluster Weight
286 lb (130 kg)