Switch boards, comprising the Main LV switch board, also known by the acronym MLVS are vital to the dependability of electrical installation. It must act in accordance with the set guidelines that govern the construction and design of LV switch gear congregations.
A switchboard is the point at which an incoming power supply segregates into separate circuits, each of that is controlled and protected by the switchgear or fuses of the switchboard. Switchboard is partitioned into a couple of functional units, comprising all the mechanical and electrical elements that contribute to the fulfillment of a given purpose. It symbolizes a key link in the constancy chain.
Therefore, the type of switchboard should be perfectly modified to its application. Switchboard Manufacturers must note that the construction and design must comply with working practices and applicable standards.
The switchboard enclosure offers dual protection:
- Security of switchgear, indicating relays, fusegear, instruments, etc. against vibrations, mechanical impacts and various other external influences are prone to interfere with operational integrity (dust, EMI, vermin, moisture, etc.)
- The defense of human life against the possibility of direct and indirect electric shock.
Modern industrial switchboards are sternly fabricated with metal enclosed design construction; no energized parts are easy to get while the panels and covers are closed. Earlier, open switchboards were made with switches and several other devices were mounted on panels fabricated of ebony, granite or slate asbestos board. Metal enclosure of switchboard is linked to earth ground for personnel protection. Large switchboards might be unattached floor mounted enclosures with stipulation for incoming connections at the top or bottom of the enclosure. Switchboard may perhaps have incoming bus duct or bus bars for the source connection and for large circuits fed from the board. Switchboard might include a control or metering compartment estranged from the power distribution conductors.