It is really important to KNOW the Ingress Protection (IP) of Bus Bar Trunking (BBT) system?

Indeed, that's correct. As per the IEC standard 60529, the global designation for safeguarding electrical products such as Busbars, Transformers, etc., from outdoor elements is referred to as Ingress Protection or IP marking.

Degree of Protection or IP:

The degree of protection pertains to shielding against hazardous substances like soil, dust, etc., as well as guarding against the infiltration of solid foreign objects and/or water ingress through an enclosure (e.g., panel or BBT housing). This IP rating is substantiated through standardized testing methods.

 

Purpose:

• To define the level of protection against access to hazardous components within the enclosure.
• To specify the protection of equipment within the enclosure against the penetration of solid foreign objects.
• To delineate the safeguarding of equipment within the enclosure against detrimental effects caused by water ingress.

Code Breakdown:

The table below illustrates the various aspects of the IP code (e.g., IP55).

 In-Depth Explanation of IP:

The IP rating system provides a comprehensive understanding of the protective capabilities of electrical enclosures, ensuring optimal safety for both the equipment and users. The IP code encompasses a range of combinations, each signifying different levels of defense against dust, moisture, and external impacts.

Choosing the Appropriate IP for BBT

The selection of the ideal IP rating for the BBT is contingent upon its specific application and the prevailing local weather conditions. For both indoor and outdoor usage, experts recommend different IP ratings for the BBT enclosures. In Bangladesh, the following standard practices are observed:

For Indoor Applications: A minimum IP55 rating is recommended.

For Outdoor Applications: An IP66 or higher rating is recommended, along with the provision of a canopy.

The provided IP details facilitate a more precise selection process, as they consider the unique application environment of the BBT. This approach ensures that the chosen IP rating aligns perfectly with the intended usage, guaranteeing optimal protection for the equipment.