Talk:Direct-buried cable

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Rating factors for directly buried cables[edit]

Can anybody tell me what derating factors to consider if we are having 2 layers of 30 numbers 11KV HT cables laid in tier formation one above the other directly in ground at a depth of around 1.2 to 1.7 meters.

ambient outside air temperature : 50 deg. celcius. derating factor at this depth : 0.96

125.63.74.66 (talk) 05:13, 28 February 2008 (UTC)[reply]

Rocky