|
Quantity
|
Cost
|
||
|
|
|||
Galvanized multifaceted lighting mast EUROPOLES CM 20-35M with mobile crown
Mobile-crown lighting masts CONSIST OF:
- A trunk consisting of two or more conical segments of polygonal section made of hot-dip galvanized steel: S355JO.
- A bracket consisting of three props to support drawing the carrier wire and additional power cable prop.
- Props are completely closed to protect the lifting mechanism, which consists of polyamide rollers and stainless steel plugs protected by polyethylene.
- The carrier wires and power cables are attached to one end of the cylindrical device inside the mast and the other end extends through the props and connects to the movable crown.
- Mobile (movable) crown made of hot-dip galvanized steel, consisting of two concentric frames connected by three edges every 120 °.
- Each rib (edge) is fitted with a flexible connection system whereby the crown is attached to the top of the mast and completely frees the carrier cables from any load.
- Electrical System: the mast consists of a self-carrying cable for powering the floodtlights with the corresponding cross-section.
DRIVE MECHANISM OF THE CROWN OF THE MAST:
The external electric drive consists of a trolley on which an electric chain hoist with an appropriate load capacity is mounted.
The drive is transmitted from the hoist engine to the hoist chain, then through the roller inside the mast to the distributor and its attached cables. There's a limit switch inside the mast, which turns off the hoist at the moment when the crown is setted in top position.
Internal electric drive - the principle of operation is the sameas in the case of external drive, except all elements of a drive placed inside of the mast.
External manual drive - the function of lifting and lowering the crown works with the help of the external drive mechanism in manual mode.
The drive mechanism consists of a handle placed on a steel "shoulder" attached to the base of the mast's niche and trolley with a niche for the chain.