ZPA Pecky, a.s. MODACT MOK 1000, Инструкция по установке и эксплуатации

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4
4) AF2 – occurrence of corrosive or polluting substances from atmosphere. Presence of corrosive polluting
substances is significant.
5) AG2 – medium mechanical stress by impacts – common industrial processes
6) AH2 – medium mechanical stress by vibrations – common industrial processes
7) AK2 – serious risk of growth of vegetation and moulds
8) AL2 – serious danger of the occurance of animals (insects, birds, small animals)
9) AM-2-2 – normal level of the signal voltage. No additional requirements
10) AN2
– medium solar radiation with intensities > 500 W/m
2
and ≤ 700 W/m
2
11) AP3 – medium seismic effects; acceleration > 300 Gal ≤ 600 Gal
12) BA4 – personal abilities. Instructed people.
13) BC3 – frequent contact with the earth potential. Persons coming frequently into contact with "live" parts or
standing on a conducting base.
Operating position
The actuators can be used in any operating position.
3. OPERATION MODE, SERVICE LIFE OF ACTUATORS
Operation mode
The actuators can be operated with the type of loading S2 according to ČSN EN 60 034-1. The run period
at temperature +50 °C is 10 minutes; the mean value of loading torque should not exceed 60 % of the value of
maximum tripping torque Mv. The actuators can also work in the regime S4
(interrupted run with start-up) according to
ČSN EN 60 034-1. Load factor N/N+R is max. 25 %; the longest working cycle (N+R) is 10 minutes (course of working
cycle is shown in the figure). The highest number of closing operations in automatic regulation is 1200 cycles per hour.
Mean value of loading torque with load factor 25 % and surrounding temperature +50 °C is not higher than 40 %
of maximum tripping torque Mv.
The highest mean value of loading torque is equal to rated torque of the actuator.
Corrosion protection
Actuators are standardly delivered with surface treatment corresponding to category of corrosion aggressiveness
C1, C2 and C3 according to ČSN EN ISO 12944-2.
On customer's request is possible to do surface treatment correcponding to category of corrosion aggressiveness
C4, C5-I and C5-M.
In following table is provided and overview of environment for each categories of corrosion aggressiveness accor-
ding to ČSN EN ISO 12944-2.
Corrosion
aggressiveness
level
Example of typical environment
Outdoor Indoor
C1
Heated buildings with clean atmosphere
(very low) e.g. offices, shops, schools, hotels.
C2 Atmosphere with low level of pollution. Unheated buildings, in which may occur
(low) Mostly outdoor areas. condensation, e.g. stocks, sports halls.
C3
Urban industrial atmospheres, Production areas with high humidity and low air
(middle)
mild pollution of sulfur dioxide. pollution, e.g. food industry, processing
Seaside areas with middle salinity. factories, breweries.
C4 Industrial areas and seaside areas Chemical plants, swimming pools,
(high) with middle salinity. seaside shipyard.
C5-I
(very high
Industrial areas with high humidity Buildings or areas with predominantly continuous
– industrial)
and aggressive atmosphere. condensation and high air pollution.
C5-M
(very high Seaside areas with high salinity.
Buildings or areas with predominantly
– seaside)
continuous condensation and high air pollution.