Low Voltage Guide Projects

IEEE-SA Project Authorisation Requests (PARs)
(retrieved 2016-06)

PC62.41.3: Guide for Interactions between Power System Disturbances and Surge Protective Devices (Previously C62.48)

Status: SPDC WG 3.6.4 PAR for revision of C62.48-2005

Scope: This guide applies to surge protective devices (SPDs) intended for connection to 50 Hz to 60 Hz ac power circuits rated 1000 V RMS or less. This guide describes the effects on SPDs of power system disturbances occurring in these low-voltage ac power circuits. The disturbances are not limited to surges. The effects of the presence and operation of SPDs on the quality of power available to the connected loads are described. The interaction among multiple SPDs on the same circuit is also described. This guide discusses both voltage and current surges. The current surges discussed in this guide are the result of voltage surges. Current surges that are solely the result of load changes and do not result in voltage increases, such as a short circuit, are not discussed in this guide. An SPD's primary purpose is to provide surge protection. Devices discussed in this guide contain at least one nonlinear component for diverting surge current and/or dissipating surge energy, such as a metal oxide varistor (MOV), silicon avalanche diode (SAD), thyristor, or spark gap. Uninterruptible power supplies (UPSs), ferroresonators, motor-generators, and filters containing only inductive and/or capacitive components are not considered SPDs in this guide.

PAR Expiration Date: 31-Dec-2016

 

PC62.42.0: Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports – Overview

Status: SPDC WG 3.6.3 PAR for a Revision to C62.42

Scope: The C62.42 guide series covers surge protective components (SPCs) used in power and telecom surge protective devices (SPDs) and equipment ports. This Overview part covers:

  • Protective functions both non-linear and linear
  • Component technologies and characteristics
  • Common circuit designs used in surge protective devices (SPDs) and equipment ports
  • Information on the impulse (surge) generators used to test surge protective components (SPCs)

Additional parts of C62.42 on specific SPC technologies provide details on:

  • Component construction
  • Characteristics and ratings
  • Application examples

PAR Expiration Date: 31-Dec-2017

 

PC62.42.1: Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports - Part 1 Gas Discharge Tubes (GDTs)

Status: SPDC WG 3.6.3 PAR for a new IEEE Guide

 Scope: The C62.42 guide series covers surge protective components (SPCs) used in power and telecom surge protective devices (SPDs) and equipment ports. This part on Gas Discharge Tube (GDT) technology SPCs covers:

  • Component construction
  • Characteristics
  • Ratings
  • Application examples

PAR Expiration Date: 31-Dec-2017

 

PC62.42.2: Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports - Part 2 Metal-Oxide Varistors (MOVs)

Status: SPDC WG 3.6.3 PAR for a new IEEE Guide

Scope: The C62.42 guide series covers surge protective components (SPCs) used in power and telecom surge protective devices (SPDs) and equipment ports. This part on Metal-Oxide Varistor (MOV) technology SPCs covers:

  • Component construction
  • Characteristics
  • Ratings
  • Application examples

PAR Expiration Date: 31-Dec-2017

 

PC62.42.3: Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports - Part 3 Silicon PN-Junction Clamping Diodes

Status: PAR for a New IEEE Guide

Scope: The C62.42 guide series covers surge protective components (SPCs) used in power and telecom surge protective devices (SPDs) and equipment ports. This part, Part 3 of the C62.42 series, describes Silicon PN-Junction Clamping Diode SPCs and covers:

  • Technology variants
    • forward biased semiconductor diodes
    • Zener breakdown semiconductor diodes
    • avalanche breakdown semiconductor diodes
    • punch-through semiconductor bipolar junction transistor diodes
    • fold-back semiconductor bidirectional transistor diodes
  • Component construction
  • Characteristics
  • Ratings
  • Application examples

PAR Expiration Date: 31-Dec-2017

 

PC62.42.4: Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports - Part 4 Thermally Activated Current Limiters

Status: PAR for a New IEEE Guide

Scope: The C62.42 guide series covers surge protective components (SPCs) used in power and telecom surge protective devices (SPDs) and equipment ports. This part, Part 4 of the C62.42 series, describes thermally activated current limiter SPCs and covers:

  • Technology variants
    • polymer positive temperature coefficient thermistors
    • ceramic positive temperature coefficient thermistors
  • Component construction
  • Characteristics
  • Ratings
  • Application examples

PAR Expiration Date: 31-Dec-2017

 

PC62.43.0: Guide for Surge Protectors and Protective Circuits Used in Information and Communications Technology (ICT) Circuits, Including Smart Grid Data Networks - an Overview

Status: SPDC WG 3.6.7 PAR for a new IEEE Guide

Scope: This guide gives an overview of the application of surge protectors and protective circuits used in information and communications technology (ICT) circuits, including Smart Grid data networks.

PAR Expiration Date: 31-Dec-2020

 

PC62.44: Guide for the Application of Low-Voltage (1000 Volts rms or Less) Surge Protective Devices Used on Secondary Distribution Systems (Between the Transformer Low-Voltage Terminals and the Line Side of the Service Entrance Panel)

Status: SPDC WG 3.6.9 Modified PAR for revision of PC62.44

Scope: This guide encompasses the application of surge protective devices (secondary arresters) from the secondary terminals of the distribution transformer to the line side of the service entrance panel.

PAR Expiration Date: 31-Dec-2014

 

PC62.55: Guide for Surge Protection of DC Power Feeds to Remote Radio Heads (RRH)

Status: SPDC WG 3.6.7 PAR for a New IEEE Guide

Scope: This Guide covers the application of surge protective devices used to protect the DC power feeds of Remote Radio Heads (RRH) and power supplies of fiber optic cable systems feeding the antenna systems.

PAR Expiration Date: 31-Dec-2019

 

PC62.72a: Guide for the Application of Surge Protective Devices for Low Voltage (1000 Volts or Less) AC Power Circuits Amendment: SPD Disconnector Application Considerations and Coordination for use in Low Voltage AC (1000 V or Less, 50 or 60 Hz) Power Circuits

Status: SPDC WG 3.6.6 PAR for an Amendment to Root Project: C62.72-2007

Scope of the complete guide: This guide covers the application of surge-protective devices (SPDs) for installation on the load side of the service equipment for 50 or 60 Hz, ac power circuits rated 1000 V rms or less.

PAR Expiration Date: 31-Dec-2018

 

PC62.200: Guide for the Application of Surge Protective Devices for a Wind Power Facility

Status: SPDC WG 3.6.11 PAR for a new IEEE Guide

Scope: The scope of this guide covers the application of surge protective devices for electrical equipment and systems with voltages of 1000 V(ac) and 1200 V(dc) or less within a wind power facility. This includes power, communications, control systems, data acquisition equipment, and associated circuitry.

PAR Expiration Date: 31-Dec-2019

 

PC62.230: Guide for Surge Protection of Electric Vehicle Infrastructure

Status: SPDC WG 3.6.14 PAR for a New IEEE Guide

Scope: The guide encompasses the application of surge protective devices for electric vehicle infrastructure with system voltages of 1000 V (ac) or 1500 V (dc) or less. The document provides guidance for North American types of electric vehicle supply equipment (EVSE) and electric vehicles (EVs) that conform to the SAE J1772 Surface Vehicle Recommended Practice.

PAR Expiration Date: 31-Dec-2018