4
Swiss Lifting Solutions
0 General instructions
0.4 Instructions for hazard protection
0.4.3 Sound pressure level
Tests on the chain hoist sound level are performed at a range of 1, 2, 4, 8 and 16 metres from the centre of the chain hoist motor to the measur-
ing device. Measurement of SPL according to DIN 45 635.
The SPL was measured:
a) During operation of electric chain hoists on factory site.
b) During open-air operation of electric chain hoists.
Table 0-1 Sound level
Measuring distance
1 m
2 m
4 m
8 m
16 m
Types
Measurement type
dBA
LPM 250
a
b
65
65
62
59
59
53
56
47
53
41
NOTE
When working in a noisy environment an appropriate ear protection is recommended.
0.5 Technical status
The LPM models are designed with a shock factor of 1.4 in operation, in accordance with DIN EN 818-7. Incidents investigated by the Employ-
ers Liability Insurance Association generate lower shock factors than those occurring in normal operation.
0.6 Intended use
The LPM series of electric chain hoists are intended for use in setting up events. Events include such items as concerts, shows, conferences,
meetings, exhibitions, presentations, demonstrations, film or television shoots and similar. The location of such events include, amongst other
places, theatres, multipurpose halls, studios, film sets, television and radio broadcasting, concert halls, conference centres, schools, exhibitions,
fairs, museums, discotheques, vaudeville, recreational parks, sports facilities, open air theatres and meetings.
This standard differentiates between three types of electric chain hoists:
D8 Hoist
Electric chain hoist according to BGV D8/GUV-V D8 "Winches, lifting and pulling devices" for use as a chain hoist for lifting loads in construc-
tion.
D8 Plus Hoist
Electric chain hoist based on BGV D8/GUV-V D8 "Winches, lifting and pulling devices" for use as a chain hoist for lifting loads in construction
with the special characteristic of being able to hold loads statically above personnel, without the use of secondary safety devices.
C1 Hoist (scenery hoist)
Electric chain hoist according to BGV C1/GUV-V C1 "Staging and production facilities for the entertainment industry" for holding and moving
loads above personnel.
The types of electric chain hoists specified above can be operated both individually and in groups.
Electric chain hoists are offered in a multiplicity of designs and feature options, as well as with different safety devices. This means that the
choice of chain hoist is extremely important. Here consideration must be given to risks arising from the nature of the operational use and the
specific operating conditions.
The choice of the type of electric chain hoist depends on the operating conditions:
Table 0-2 Operating conditions
In the presence of persons under the load
Use
D8
D8 with secondary
safety device
D8 Plus
C1
Assembly and dismantling, set up mode
inadmissible
inadmissible
inadmissible
permissible
Holding loads
inadmissible
permissible
permissible
permissible
Scenic movement
inadmissible
inadmissible
inadmissible
permissible
Содержание LPM
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