useful links

: http://www.westernelectric.com.au - I consider this to be the best general motor site on the Web. Western Electric Australia has designed this site to be an information source for everyone who uses electric motors. They have deliberately not made this just another electronic catalog. Instead they have designed a reference point for anyone wishing to know anything about electric motors, from a simple "how do they work?" to a more complex question such as "how do I compare the US hazardous classifications for explosion proof motors to the equivalent IEC classifications?". http://www.st.com/stonline - ST Microelectronics seems to be the best on-line source for information about power electronics and machine controllers. Check out their product specifications and especially their Application Notes. http://www.ab.com - This is a general source of information about Allen-Bradley drives and controllers. http://www.labvolt.com - LabVolt is a manufacturer of electric machinery training systems for use in schools. http://www.magnetek.com - Magnetek manufactures a wide range of electrical motors and drive systems. Unfortunately, this site is more of a sales catalog, with less useful information. http://www.tic.toshiba.com.au - Toshiba International Corporation is manufacturer of quality motors and drive systems. It is located in Houstony motors and drive systems. It is located in Houstones catalog than a source of useful information.

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Ex Fundamentals explained

IIB or not IIB? Benefits of Zone Approved Equipment For Hazardous Location By Jason Crossman B.Sc EET, Killark Product Manager  Wiring Products Hubbell Canada LP

Undoubtedly, the world is getting smaller. With each passing year more and more opportunities become available both at home and abroad. In order for Canadian companies to participate and to prosper it became necessary to consider global approvals for electrical equipment for use in hazardous locations. Traditionally, North American regulations have been based around the Class/Division system while European authorities followed a multi-tiered Zone system. The adoption of the Zone system in North America brought substantial change to the hazardous location industry. While the purpose of each system is to the same end, they are fundamentally different in design. There are certain differences between the Canadian Electrical Code and the National Electrical Code when it comes to Zone approved equipment. The material contained herein is in reference to the Canadian Electrical Code. Although the Class/Division system and the Zone system are similar in many ways there are some very distinct differences. The fundamentals of hazardous locations apply to both systems but the definition of a hazardous environment and construction of equipment differs. One factor that is occasionally overlooked is that the fundamental laws of chemistry apply to hazardous locations. The Fire Triangle is commonly referenced since it defines the requirements for a fire to exist. According to the principles of the Fire Triangle a fire can only exist if all three sides of the triangle are present and in the proper quantities. Traditionally, North American regulations have been based around the Class/Division system while European authorities followed a multi-tiered Zone system. The adoption of the Zone system in North America brought substantial change to the hazardous location industry. While the purpose of each system is to the same end, they are fundamentally different in design. There are certain differences between the Canadian Electrical Code and the National Electrical Code when it comes to Zone approved equipment. The material contained herein is in reference to the Canadian Electrical Code. Although the Class/Division system and the Zone system are similar in many ways there are some very distinct differences. The fundamentals of hazardous locations apply to both systems but the definition of a hazardous environment and construction of equipment differs. One factor that is occasionally overlooked is that the fundamental laws of chemistry apply to hazardous locations. The Fire Triangle is commonly referenced since it defines the requirements for a fire to exist. According to the principles of the Fire Triangle a fire can only exist if all three sides of the triangle are present and in the proper quantities. Frequency Class/Division System Zone System Continuous Class I, Division 1 Zone 0 Intermittent/Periodic Zone 1 Abnormal Class I, Division 2 Zone 2 It can be seen that Class I, Division 1 is divided into Zone 0 and Zone 1. The implication is that an area classified as a Class I, Division 1 location

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about us

Ashok Patel and Ajit, 2 engineers after acquiring over 10 years experience in design, manufacturing and installation of Ex Equipment, ventured out on their own, to establish EXPLOSIONPROOF ELECTRICAL CONTROL (ExEC) in 1996

Today ExEC designs and makes better Ex equipment.

ExEC is the pioneer in clean room lighting for Ex areas.

ExEC developed a better technology for Glass toughening.

ExEC have their own fabrication shop and Foundry

hence ExEC can now offer competitive Pricing