What is the main requirement for bonding ferromagnetic envelopes?

The main requirement for bonding ferromagnetic envelopes is that bonding must occur at both ends. This practice ensures that any potential fault current has a reliable return path and helps to prevent dangerous electrical arcing or shock. Bonding at both ends creates a uniform electrical potential across the envelope, effectively reducing the risk of electromagnetic interference and ensuring safety in the electrical installation.

Additionally, proper bonding at both ends assists in maintaining integrity in the grounding system, which is crucial for the stability of electrical systems in environments where ferromagnetic materials are used. It enhances the overall effectiveness of the grounding and bonding strategy in compliance with electrical safety codes and standards.