Bypassing Critical Equipment

The purpose of this standard is to ensure that bypassing of critical protections is performed in a safe and controlled manner.

This standard establishes the requirements for the safe performance of the necessary bypassing of critical protections.

This standard establishes the requirements for the safe performance of the necessary bypassing of critical protections.

This Bypassing Critical Protection Standard covers work performed by JO employees and their delegates and contractors within JO operational control.

The standard is applicable to plant critical protective devices or systems where it is possible to apply a hardware or software bypass, force, inhibit, override, or their electrical equivalent.

This standard does not apply to the following:

When the purpose of the bypass is for Lockout/tagout. For lockout/tagout, please see JO – Isolation of Hazardous Energy Standard.
“Startup overrides” designed with automatic removal after a specified time delay Permanent bypasses, the application of bypasses that change the basis of design as it relates to safety and/or critical protections that are already properly isolated, must be managed under the JO - Management of Change Process and/or the JO - Isolation of Hazardous Energy Standard.

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