GAZA, March 13- Palestinian Prime Minister Rami Hamdallah survived an explosion which took place on Tuesday morning in Gaza which he reached via Beit Hanoun Crossing. The Palestinian PM was accompanied by Palestinian General Intelligence chief Majid Faraj. According to preliminary reports, the blast was a result of a roadside bomb which targeted the prime minister's convoy. The explosion left 10 of the convoy's security guards injured, according to Hamas spokesperson. The Palestinian officials were scheduled to inaugurate a new water purification facility in Gaza.