k-power-product-description
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Product Description K-Power- Marine Switchboards
CZD0003C-6/17/2010 Page 1 of 14
K-Power Marine Switchboards Main & Emergency Switchboards
Product Description Product Description K-Power- Marine Switchboards
CZD0003C-6/17/2010 Page 2 of 14
Revisions Written by Checked by Approved by Rev. Date Sign. Date Sign. Date Sign. A 2009-08-18 KM 2009-08-18 GWJ 2009-08-19 DGL B 2009-11-04 DGL 2009-11-04 KM 2009-11-04 GWJ C 2010-06-17 KM 2010-06-17 JXH 2010-06-17 XYM
Document history A 1. production issue B Updated pictures and text C Updated short circuit capacity after new test Product Description K-Power- Marine Switchboards
CZD0003C-6/17/2010 Page 3 of 14
1 Technical description 1.1 General mechanical characteristics 1.1.1 Framework The switchboards are manufactured in multi-cubicle, self-supporting, and dead-front type. They comprise several individual panels and complete with necessary fittings and instruments. The right and left side of the switchboard are covered with remove-able steel plates. On the front, the doors are hinged on the left side of the frame (if not otherwise specified) which can be opened in an angle more than 90° without disturbing the meters, pilot lamps and etc. mounted on them. The doors are equipped with arrestors to keep the doors in opening position. All doors are earthed to the frame with yellow/green wires. On the rear side, the lift-off covers are arranged as standard (the hinged doors are optional. In case of the switchboard is inaccessible from rear side, screw-fixed lift-off covers are installed instead). The protection degree applicable for switchboards is IP23, if not otherwise specified.
The framework of the switchboards is of maintenance-free welded construction which is designed based upon the basic grid dimension of E=25mm, have horizontal girders on front and rear side at approximately half height of the frame. The frames of switchboard are made of 3mm cold-rolled steel sheet and doors/cover plates are made of 2 mm sheet steel. Switchgears/ components are arranged on equipment compartment with associated mounting plates/ brackets, which are fastened with self-tapping screws to the frames at flexible intervals following the design grid dimension. The frames can be constructed for almost every requirement, depending of its application the three-dimension of the frame can be selected in steps of 50mm (W: 300-1000mm, H: 1800-2400mm, D: 400-1000mm).
The incorporation of individual panels for switchboard is normally arranged in a row, it can also be arranged in right-angled or back-to-back according to the special requirement.
Depending of the intended use of the panels, they are respectively designed and equipped into e.g. generator control panel, feeder panel, motor starter panel etc. The individual panels are partitioned with steel sheet plates between each other.
Non-conductive handrails can be provided on the front and/or rear. If the switchboard abuts against the control room wall, then the handrail will not be arranged on the rear.
Option: Canopy lighting in front and/or rear of the switchboards are of the fluorescent type, sockets for interior working light can be arranged on the rear inside, the power is supplied from the switchboard itself. (To be designated in the Scope of Supply) Product Description K-Power- Marine Switchboards
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1.1.2 Surface treatment The complete steel construction including all steel profiles, partitions, top covers, doors are protected against corrosion by acid washing, phosphating process followed by textured powder coating. The standard colour of the framework is RAL 7024 (graphite grey). The front doors and covers are in standard colour RAL 7035 (light grey). Other colours are available on request. Refer to colour system, RAL, Munsell or NCS and the specific colour ID number. The assembled mounting plates/brackets inside the panel are of zinc-galvanized steel plates.
To prevent the blur on surface during installation onboard, the doors and cover plates are independently protected with transparent plastic membrane, so that they can be properly opened/ closed for handling or inspection under the packaged condition without unpacking.
1.1.3 Cable entry Entry of external power cables and control cables in switchboards can be from bottom and top as per requirement. For insertion and stripping of the cables sufficient space inside the switchboard is provided. Connection of power cables to the switchgear will be done directly without intermediate terminals. For fastening of power cables inside the switchboard, necessary numbers of perforated angle bars or cable trays will be fitted inside each panel for allowing sufficient fixing strength.