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Noel Mades December 7, October 23, Kindly check your grammar. Chris January 14, Where cables are required to peel off a tray, a moulded protective edging shall be fitted to the tray. In particular the following will be adhered to:.
Curve rollers will be settled at the proper position in order to keep the cable within suitable bending radius for pulling cable around curves and bends. Saddles and fixings for securing multi-core cables to the cable tray system will be of the approved type, with the maximum spacing of mm.
At each joint or termination, a non-ferrous label shall be fixed to the cable giving size and identification of the cable. Cable trays as per approved material will be connected to the MV-LV equipment via appropriate wiring accessories.
Reduction in the number of strands of a cable core will not be allowed at a cable joint or termination. Where a compression joint is made, the appropriate tools specified by the manufacturer of joint connectors will be used. The compression joints will be made by inserting the cores to be jointed into the opposite end of a compression jointing coupling. Cable support bracket will firmly clamp the incoming cable at a suitable distance from the termination.
MV cable terminations will be carried out in strict accordance with the termination manufacturers instruction leaflets and great care shall be taken to ensure that terminations and equipment remain clean and free from contamination during the terminating process.
Final testing of MV cables will be by the supplying authority prior to energization. Testing will normally consist of installation and continuity checks for phase and neutral conductors. Busbar Trunking Installation. Switch gear shall be provided with proper earthing connections as per approved shop drawings and applicable regulations.
Manufacturer recommendations are to be followed for all relay and other breaker current settings, as per the total connected loads and the discrimination study of the system. And no water services allowed inside HV room as per applicable local regulation. Connecting cables between the switchboard and battery unit, and between the switchboard and AC control panel shall be neatly run on cable trays supplied by the contractors.
The connecting cables between the switchboard and battery unit shall be at least 4 mm in size and shall be run in a ring configuration.
Physically, the cables for entry and exit of the same loop should not be the same. All wiring and termination of connecting cables shall be carried out by the Contractor.
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