Distribution board (DB)
Introductions:
Distribution board is used in low-voltage systems, installed in the technical room of each floor or before group of load consumers inside factory or workshop. Hawee can design, production and tailor-made offer for full range of DB switchboard up to 1250A.
Scope of installation:
Distribution board is installed in the technical room of each floor or before group of load consumers inside factory or industrial workshop and civil projects such as factories, industrial workshops, commercial centers, office buildings, apartments, hospitals, schools, habours, airports …
Distribution board is installed after main switchboard and before consumption loads
General | |
Applications | Distribution Lighting |
Reference standards | IEC 61439-1 & 2 |
Installation | Indoor |
Electrical Specifications | |
Rated insulation voltage (Ui) | 1000 V AC |
Voltage rating (Ue) | 690 V AC |
Rated frequency (F) | 50/60 Hz |
Rated impact withstand voltage (Uimp) | 12 kV |
Auxiliary circuit rated voltage | 230 V AC max. |
Surge category | IV |
Degree of pollution | 3 |
Rated current (ln) | 1250A |
Rated 1s short-term current (lcw) | 25 kA |
Rated peak current (Ipk) | 53 kA |
Earthing system | TT-IT-TNS-TNC |
Power incoming and outgoing limits | Up to 630 A |
Structures and cover is made from imported steel sheet from international firms according to industrial standard JIS G3302 (Japan), EN10142 (Europe) and ASTM A653/A653-08 (America);
Surface: Zinc coated or electro-power coated under strictly quality assurance procedure to ensure long life time of product;
Doors, ingress protection degree are designed and offered on option up to IP 42 (indoor used);
Busbar, components are optimal arranged, convenient for installation and operation;
Heavy duty hinges, locks and other accessories are carefully selected, standardized to ensure sightly appearance, utilized for operation.
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