The enclosure are designed to have minimum IP54 Protection, Painting of the enclosure exterior shall be suitable for harsh environment conditions. Each compartment will be provided with the door and pad locking arrangement. The Compartment illumination lamp with door-operated switch shall be provided for each compartment.
Material
The Enclosure shall be made of min 3 mm thickness Sheet Steel tropicalized to local weather conditions including all partition sheets and doors. The outdoor enclosure wall of enclosure are designed in a fully welded wall type design for robust construction.
Protection Degree
The protection degree of the Enclosure shall be IP54 and have Proper / adequate ventilation aperture shall be provided for natural ventilation by way of Louvers etc.
Covers & Doors
Covers & doors are part of the enclosure. When they are closed, they shall provide the degree of protection specified for the enclosure. Ventilation openings shall be so arranged or shielded that same degree of protection as specified for enclosure is obtained. Additional wire mesh may be used with proper Danger board for safety of the operator. All covers, doors or roof shall be provided with locking facility or it shall not be possible to open or remove them before doors used for normal operation have been opened.
Earthings
Earthings All metallic components shall be earthed to a common earthing point. The components to be connected to the earth system shall include:
a) The enclosure of Package substation,
b) The enclosure of High voltage switchgear & control gear from the terminal provided for the purpose,
c) The metal screen & the high voltage cable earth conductor,
Cleaning & Painting
The paints shall be carefully selected to withstand Harsh Environment conditions. The paint shall not scale off or crinkle or be removed by abrasion due to normal handling.