IEEE Std 1137:2018 pdf download.IEEE Recommended Practice for the Implementation of Inductive Coordination Mitigation Techniques and Application.
This Recommended Practice offers users assistance in controlling or modifying the inductive environment and the susceptibility of affected wire-line telecommunications facilities in order to operate within the acceptable levels of steady-state or surge-induced voltages of the environmental interface (probe wire) defined by IEEE Std 776T1. The methodology, application, and evaluation of results for mitigative techniques or devices in general are addressed for all Specific Type A and Specific Type B coordination methods also defined by IEEE Std 776.
1.2 General
In IEEE Std 776, the recommended procedures for determining the source and type of inductive interference are explained. Detailed methods are provided to determine the cause and effect relationship by calculation or direct measurement on the probe wire interface. Tables are given to set the environmental thresholds for the initiation of inductive coordination.
This recommended practice examines the implementation of general and specific mitigation techniques. Note that long accepted practice suggests that both power and communications companies design, construct, operate, and maintain their respective systems utilizing general coordination methods, as defined in IEEE Std 776. Some of the mitigation devices and procedures that are defined as specific mitigation measures have been used by companies as economic tradeoffs against more expensive general coordination methods. This recommended practice neither recommends nor condemns this practice. IEEE Std 776 suggests that specific mitigation methods should not be employed as the best engineering solution until each company is employing general coordination methods. However, users of this recommended practice should note that implementation of any method or device should include the consideration of timeliness and economics irrespective of the system to which it is to be applied in order to meet each utility company’s obligations to their mutual customers and regulatory bodies, as applicable.
2. Normative references
The following referenced documents are indispensable for the application of this document (i.e., they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies.
IEEE Std 367. IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault.
IEEE Std 47TM, IEEE Standard for the Electrical Protection of Communications Facilities Serving Electric
Supply Locations — General Considerations.
IEEE Std 776, IEEE Recommended Practice for Inductive Coordination of Electric Supply and Communication Lines.
IEEE Std 820, iEEE Standard Telephone Loop Performance Characteristics.IEEE Std 1137 pdf download.