Common use of Insulators Clause in Contracts

Insulators. In general, the type and material of the insulators shall be selected based on the characteristics of the zones crossed by the lines, taking into consideration the good practices and experiences of the transmission lines built in Peru and in similar zones. In this regard, the CONCESSIONAIRE shall investigate what contaminating agents or potential sources of contamination are present in the zones crossed by the line, which may affect the insulators’ operation. The insulation coordination studies that involve insulators shall comply with standards IEC 60815-1 and IEC 60815-2, in particular with regard to contamination. From the results of this research, the CONCESSIONAIRE shall determine the measures to minimize the impact of contamination, such as line section layout, increase of creepage distance, use of rings to improve the performance of insulators contaminated in wet areas, etc. The results of the study shall also allow for the selection of the material and insulator type to be used. Insulators shall ensure the insulation level required against atmospheric surges, switching surges and industrial frequency surges, for the same altitude conditions previously discussed and the insulation levels defined in Point 2.2.3 of this annex. In all cases, the proper mechanical strength of the insulators shall be verified, in accordance with the work conditions they are subjected to; evaluating, if necessary, the use of double chains or insulators with a greater breaking load.

Insulators. In general, the type and material of the insulators shall be selected based on the characteristics of the zones crossed by the lines, taking into consideration the good practices and experiences of the transmission lines built in Peru and in similar zones. In this regard, the CONCESSIONAIRE shall investigate what the contaminating agents or potential sources of contamination are present existing in the zones crossed by the line, which zone and those agents that may affect the insulators’ operation. The insulation coordination studies that involve insulators shall comply with standards IEC 60815-1 and IEC 60815-2, in particular with regard to contamination. From the results of this research, the CONCESSIONAIRE shall determine the measures to minimize the impact of contamination, such as line section layout, increase of creepage distance, use of rings to improve the performance of insulators contaminated in wet areas, etc. The results of the study shall also allow for the selection of the material and insulator type to be used. Insulators shall ensure the insulation level required against atmospheric surges, switching surges and industrial frequency surges, for the same altitude conditions previously discussed and the insulation levels defined in Point 2.2.3 2.2.4 of this annex. In all cases, the proper mechanical strength of the insulators shall be verified, in accordance with the work conditions they are subjected to; evaluating, if necessary, the use of double chains or insulators with a greater breaking load.