Rising Mains of Electrical
Totally enclosed Rising mains are with aluminium bus - bars or Copper bus-bars in suitable sections which are connected to make a vertical run. Each sections is provided with a number of wall straps for fixing the rising mains to the wall. The trunking consists of side channels of 14 SWG MS sheet and front and rear cover of 16 SWG to form totally enclosed metals clad construction. The bus-bars of rectangular sections of wrought aluminium with a current density not exceeding 1.25 A per squire mm and are individually insulated with a non-deterioating material so as to prevent any possibility of electrical fault due to presence of vermin. The aluminium bus-bars conform to IS 5082 -1969 grade 9-1 EQP. The total run in sectionalized and each section is fitted with a thrust pad to prevent the bus-bars from sliding downwards. Each section also has an expansion joint to take up expansion of that section. 2500 A bus -bars Bus bar rising arrangement Connections be