Transcription of Technical Specification for Main 415V Switchboard 1. GENERAL
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Technical Specification for Main 415V Switchboard 1. GENERAL
Annex B1 Technical Specifications Page 1 of 38 Technical Specification for Main 415V Switchboard 1. GENERAL a) The switchboards shall be of the indoor, metal clad, modular type suitable for operation in the switch room as indicated on the drawings. It shall be capable of operating in tropical and humid conditions. b) The switchboards shall be totally enclosed and constructed as described below. They shall comply with the requirements of the latest edition of EN 60439-1. c) The design of the Switchboard shall comply fully with Full type test requirements.
Current transformers shall be designed, manufactured and tested to EN 60044-1. They shall have 5A secondary & 15 VA burdens. Current transformers used for : a) Supply authority metering - Class 0.5 b) Instrument - Class 1 c) Protection - Class 5P10 1.5.6. Indicating Lights
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