UL (Underwriters Laboratories) - www.ul.com
UL is an independent, not-for-profit organization that tests electrical equipment for safety. This standard applies to end-users, manufacturers, and specifiers. We are on UL 1449 2nd edition (referred to as 2.5) February 2007.
n UR module or component listing
n UL 1283 – Safe Capacitors in SPDs and provides EMI/RFI attenuation
n UL 1449 – SPD (TVSS or Surge Protection) Safety and SVRs (Suppression Voltage Ratings or Clamping voltage)
IEEE (Institute of Electrical and Electronics Engineers) - www.ieee.org IEEE is non-profit, technical professional association of more than 365,000 members within various technical arenas from telecommunications to aerospace which sets performance standards for electrical and electronics equipment. SPDs are referenced in section C62 in the 2002 version. n C62.41.1 – Locations categories, waveforms, definitions, exposure levels and general information. Guide on the Surge Environment in Low-Voltage (1000 V and less) AC Power Circuits n C62.41.2 – Recommended Practice on characterization of Surges in Low-Voltage (1000 V and less) AC Power Circuits n C62.45 – Testing setup recommendations for performance and Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000 V and Less) AC Power Circuits. UL use this section for the 1449 testing. n C62.33 – Testing guidelines for MOVs n C62.35 – Testing guidelines SADs NEC (National Electric Code) Article 285 - www.nfpa.org/nec NEC publication distributed by the NFPA (National Fire Protection Agency) involved with electrical installation. The Code is intended to guide the electrician toward proper installation of hardwired TVSS/SPDs. Also, provisions are made for electrical inspectors to ensure proper safety and fault current coordination where TVSS/SPDs are installed. NEC Article 285 is on 2005 revision which addresses load side suppressors. n NEC 285.2 – Products must be repetitive n NEC 285.6 – Products must have AIC rating equal to or greater at the point of connection. IEC (International Engineering Consortium) - www.iec.org IEC is an international nonprofit organization which sets performance and safety standards for electronics and electrical equipment. ITIC (Information Technology Industry Council) - www.itic.org ITIC is an elite group of the nation’s top high-tech companies and sensitive equipment manufacturers who recommends voltage tolerance levels for electronics. Companies like Motorola, Microsoft, Intel, and IBM just to name a few help define acceptable clamping levels for microprocessor based NEMA (National Electrical Manufacturers Association) - www.nema.org NEMA provides a forum for the standardization of electrical equipment, enabling consumers to select from a range of safe, effective, and compatible electrical products. The association promotes safety to the manufacture and use of their electrical products. n LS.1 – Definitions n LS.2 – Performance ratings, testing requirements and guide lines for sizing units.
IEEE is non-profit, technical professional association of more than 365,000 members within various technical arenas from telecommunications to aerospace which sets performance standards for electrical and electronics equipment. SPDs are referenced in section C62 in the 2002 version.
n C62.41.1 – Locations categories, waveforms, definitions, exposure levels and general information. Guide on the Surge Environment in Low-Voltage (1000 V and less) AC Power Circuits
n C62.41.2 – Recommended Practice on characterization of Surges in Low-Voltage (1000 V and less) AC Power Circuits
n C62.45 – Testing setup recommendations for performance and Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000 V and Less) AC Power Circuits. UL use this section for the 1449 testing.
n C62.33 – Testing guidelines for MOVs
n C62.35 – Testing guidelines SADs
NEC (National Electric Code) Article 285 - www.nfpa.org/nec
NEC publication distributed by the NFPA (National Fire Protection Agency) involved with electrical installation. The Code is intended to guide the electrician toward proper installation of hardwired TVSS/SPDs. Also, provisions are made for electrical inspectors to ensure proper safety and fault current coordination where TVSS/SPDs are installed. NEC Article 285 is on 2005 revision which addresses load side suppressors.
n NEC 285.2 – Products must be repetitive
n NEC 285.6 – Products must have AIC rating equal to or greater at the point of connection.
IEC (International Engineering Consortium) - www.iec.org
IEC is an international nonprofit organization which sets performance and safety standards for electronics and electrical equipment.
ITIC (Information Technology Industry Council) - www.itic.org
ITIC is an elite group of the nation’s top high-tech companies and sensitive equipment manufacturers who recommends voltage tolerance levels for electronics. Companies like Motorola, Microsoft, Intel, and IBM just to name a few help define acceptable clamping levels for microprocessor based
NEMA (National Electrical Manufacturers Association) - www.nema.org
NEMA provides a forum for the standardization of electrical equipment, enabling consumers to select from a range of safe, effective, and compatible electrical products. The association promotes safety to the manufacture and use of their electrical products.
n LS.1 – Definitions
n LS.2 – Performance ratings, testing requirements and guide lines for sizing units.
NEMA Enclosure Ratings - http://www.ul.com/hazloc/ref/Nema.htm
