This guide documents methods and designs to mitigate interruptions, equipment damage, and personnel safety issues resulting from animal intrusions into electric power supply substations, thereby improving reliability and safety, and minimizing the associated revenue loss.

定价： 72元 / 折扣价： 62 元

定价： 65元 / 折扣价： 56 元

定价： 75元 / 折扣价： 64 元

This recommended practice addresses the inductive environment that exists in the vicinity of electric power and wire-line telecommunications systems and the interfering effect that may be produced thereeby; guidance is offered for the control or modification of the environment and the susceptibility of the affected systems in order to maintain an acceptable level of interference. An acceptable level is defined as an amount of steady-state or surge induced longitudinal voltage or current that… read more does not cause a personnel or public safety hazard, damage to cable or equipment, and/or circuit degradation or failure. To aid the user of this recommended practice in calculating induction between power and telecommunication lines, the concept of an interface is developed. This recommended practice permits either party, without need to involve the other, to verify the induction at the interface by use of a probe wire. This recommended practice does not apply to railway signal circuits. read less

定价： 106元 / 折扣价： 91 元

定价：

This guide specifies the requirements and testing methods for a stationary energy feedback system to be used in trackside installations for a dc electrified railway power supply network. This system can harvest electric energy from the dc power supply network and feed the energy back to the ac power supply network. This guide covers terms and definitions, rating values, performance requirements, and test requirements. Performance requirements include efficiency, temperature, lifetime, control… read more and protection, electromagnetic compatibility (EMC), and mechanical characteristics. Test requirements will cover methods and criteria for type test, routine test, and commissioning test. However, the systems with the following functions are not included in this guide: - Resistive consumption of regenerated power - Energy storage system read less

定价： 75元 / 折扣价： 64 元

This recommended practice addresses activities related to PPS reliability, including design considerations, analytical studies, operational and maintenance considerations, and IAs between an NPGS and its associated Transmission Entities.

定价： 65元 / 折扣价： 56 元

This standard describes the design criteria of the PPS and its interfaces with the Class 1E power system, switchyard, transmission system, and AAC source. Figure 1 is a typical interface diagram of the PPS with related power systems.

定价： 59元 / 折扣价： 51 元

This standard presents general consideration for special HVP systems intended to protect telecommunications facilities serving electric supply locations. This standard contains material common to all of the IEEE 487(TM) family of standards including fundamental protection theory and basic electrical protection concepts and designs.

定价： 158元 / 折扣价： 135 元

This standard presents engineering design procedures for the electrical protection of telecommunication facilities serving electric supply locations through the use of metallic wire-line components in part of the telecommunication circuit and optical fiber systems in the remainder of the telecommunication circuit. Other telecommunication alternatives such as radio and microwave systems are excluded from this document.

定价： 110元 / 折扣价： 94 元

This standard presents engineering design procedures for the electrical protection of communication facilities serving electric supply locations through the use of neutralizing transformers. Othere telecommunication alternatives, such as radio and microwave systems, are excluded from this document.

定价： 110元 / 折扣价： 94 元

This standard presents engineering design procedures for the electrical protection of communication facilities serving electric supply locations through the use of isolation transformers. Othere telecommunication alternatives such as radio and microwave systems are excluded from this document.

定价： 55元 / 折扣价： 47 元

This recommended practice presents engineering design procedures for the electrical protection of communication facilities serving electric supply locations using optical fiber systems. Services utilizing wire-line protection systems are addressed in IEEE Std 487™-2007. Other telecommunication alternatives such as radio and microwave systems are excluded from this document.

定价： 110元 / 折扣价： 94 元

This standard presents engineering design procedures for the electrical protection of telecommunication facilities serving electric supply locations through the use of optical fiber systems for the entire facility. Other telecommunication alternatives such as radio and microwave systems are excluded from this document.

定价： 61元 / 折扣价： 52 元

This standard presents engineering design procedures for the electrical protection of telecommunication facilities serving electric supply locations through the use of optical fiber systems for the entire facility. Other telecommunication alternatives such as radio and microwave systems are excluded from this document.

定价： 81元 / 折扣价： 69 元