The system will be delivered as ready-to-use item. There will not be any installation for Motorwind but a MOTORWIND engineer will monitor the installation at site.
Manufacturing : 4 weeks
Electrical cabling: 1 week
Installation: 3 days
Maintenance will be carried out By Motorwind authorized personnel only. A fee of HK$5 000 will be charged upon each visit.
Maintenance can only be carried out by using the building gondola, which will be provided by customer/building management.
The system is guaranteed for one year for parts and system.
Motorwind Ltd/ Motorwave Group keep all rights on Carbon Credit.
The primary purpose of these sign board is for advertizing, but due to the specific use and limited application
Motorwind Ltd will not charge any advertising fees.
Load and Weight and Forces
A) Signage Per Unit (total 5 units):
Weight without any fiber glass cover : approx 50 kgs :includes frame/turbines/electrical components.
B) Wall mounting frame:
Each: approx 10kgs
C) Pressure/wall concrete screws: we take approx 70Kg/m (700Nm)
so each of the 4 top screw head will take approx 15 to 20 kgs(150 to 200 N).
a 12 mm concrete screw head can take 10 000 N in pull out pressure and approx 40 000 N in
vertical loading so it is safe.
Lateral pressure for high wind speed.
For all of our installations, we use a flexible mounting frame that can allow absorbtion of high wind energy.
For this signage, we can only use a regid frame for security reasons.
A turbine under 50ms wind speed takes approx 12N
(We consider approx 5% of a solid wall).
For 25 turbines:300N.
We consider approx 300N/2m or 600N/m
So it is also very safe.
By adding a surface (with 30% solid wall) the board will take more pressure.
the effect is increased by having a cup effect.
We can consider(regarding areas involved total area =2.1 M2 :turbines = 1.6 M2)
that the whole board is max approx 10% to 15% of a solid wall.