involves distribution of electrical power using set of copper/Aluminum bus bars enclosed in suitable encloser with high degree of protection against any ingress of foreign bodies. Following are some advantages of Bus bar trunking system over normal cabling system:-
1-On-site installation times are reduced compared to hard-wired systems, thus leading to cost savings
2-It provides increased flexibility in design and versatility with regard to future modifications.
3-Greater safety and peace of mind for specifiers, contractors and end-users.
4-Because of the simplicity of busbar, it is easy to estimate costs from the design/estimating stage through to installation on site. This is because the technical characteristics and price of each component are always known.
5-It is short sighted to compare the cost of busbar against that of a length of cable — and not the real cost of a cable installation to include multiple runs of cable, tray and fixing, let alone the protracted time and effort of pulling cables.
6-Distribution busbar distributes power along its length through tap-off points along the busbar at typically at 0.5 or 1 m centers. Tap-off units are plugged in along the length of the busbar to supply a load; this could be a sub distribution board or, in a factory, to individual machines. Tap-offs can normally be added or removed with busbar live, eliminating production down time.
7-Installed vertically the same systems can be used for rising-mains applications, with tap-offs feeding individual floors. Certified fire barriers are available at points where the busbar passes through a floor slab. Protection devices such as fuses, switchfuses or circuit breakers are located along the busbar run, reducing the need for large distribution boards and the large quantities of distribution cables running to and from installed equipment.
8-Very compact so provides space savings