In the discussion of the electrical busbar linkages in commercial buildings with heavy industrial activity, it is useful to look at how different sizes of busbars are required, and the significance of the figure chosen for calculating this. It may be convenient and cost saving to choose standard copper busbars that are readily available. However, as the size of the buildings and the number of employees increase, so does the need for a more durable, stronger and longer-lasting busbar. An increase in the number of electrical cables required along with the number of busbars may well indicate an area of need for cable management and design.
To give an idea of the benefits in using busbar link sizing in an overall building structure, the following quote two can be used, one for large buildings and one for small. The first example will be suitable for those buildings which have a mixture of commercial and domestic uses, where the larger commercial building will be the primary user, whilst the domestic building could be for domestic services. The size of the active electronics cable is needed to calculate the minimum thickness needed for the protection of the system. This minimum thickness can then be multiplied by the number of individual connections required to provide the desired protection.
A busbar system consists of several busbars with individual wires running between them. Connections are usually made between ten, twenty, thirty and fifty feet of cable. There are four different busbar types, which are: galvanized steel busbars, aluminium busbars, copper busbars and stainless steel busbars. Stainless steel busbars are used where high temperature requirements are concerned, as they are resistant to corrosion and do not rust. However, galvanized steel busbars are better protected against corrosion from external influences. Copper busbars offer good protection against short-circuit current, but their conductivity is a little lower than that of galvanized steel busbars, which may be preferable where conductivity is an issue.
Busbars are used in conjunction with a figure of eight connectors, which is fitted between the busbars to form an eight-wire plug. Figure eight connectors are available in different shapes and sizes to suit varying requirements. Some figure eight connector plugs are provided with jumper contacts for easy attachment to switches and connectors. To prevent accidental short-circuits, a ground wire is provided along with the connector, and this makes it extremely safe to install.
The use of busbars is widespread in the construction industry, particularly in power and distribution applications. It provides simplified access to various floors in a building and facilitates the detection of faults beneath the floor surface. They can also help detect leaks in water pipes and facilitate the detection of faulty connections in underground cables. In addition, they give access to the electrical panels at various floors in a building and act as a connection point for wires coming in from various floors.
The standard busbars are manufactured with high-quality metal foil to ensure flexibility and durability. They are available with or without jumpers. They can be conveniently installed under a fire load with ease. With a high-quality busbar and figure of eight connectors, you can connect cables of any length or width under a fire load with ease.