S.Africa's rand weakens for 3rd day on power crunch

South African bank notes featuring an image of former South African President Nelson Mandela are displayed at an office in Johannesburg January 17, 2013. REUTERS/Siphiwe Sibeko

JOHANNESBURG (Reuters) - South Africa's rand weakened against the U.S. dollar for the third straight session on Tuesday, pressured by concerns over the damage persistent electricity blackouts will have on a stuttering economy. South Africa's troubled power utility Eskom said on Tuesday it had widened power outages and there would be rolling blackouts for a second day in a row. "Eskom blackouts are proving a regular problem," said Bart Stemmet, an analyst at NKC Independent Economists. At 1531 GMT, the rand was 0.7 percent weaker at 11.5375 versus the dollar. The currency had rallied to 7 week highs last week after the European Central Bank said it would buy 60 billion euro ($67.28 billion) worth of assets each month to try and stimulate growth in the euro zone. But a Standard & Poor's downgrade of Russia's sovereign credit downgrade on Monday ended any support for the rand from wider emerging market buying. "The broader negative emerging market sentiment is having an impact. I think the rand strengthened too far last week and we're seeing a bit of a correction," Stemmet said. Traders had one eye on Thursday's monetary policy statement for the central bank's latest inflation and gross domestic product projections, although the market has largely priced in a "steady" call on interest rates. All 37 economists surveyed by Reuters predict the Reserve Bank would hold interest rates at 5.75 percent.