With the expanding surge protective devices industry comes a learning curve for code authorities, for electricians, for consumers and for the safety testing agencies.
Many electrical inspectors can tell you that confusion about wire temperature ratings and equipment termination temperature requirements results in their rejecting installations.
This editorial will focus primarily on electrical inspector certification and recertification in the United States for the purpose of covering proposed changes that will affect the IAEI program in the US.
In this article, we will cover some of Canadian Electrical Code requirements for standby power and transfer switching.
The 1999 NEC contains rules for low-voltage and limited-energy systems of all types ranging from telecommunications/LAN to fire alarm to closed-circuit TV systems used for security purposes.
The new Section 210-12 of the 1999 National Electrical Code (NEC) requires arc-fault circuit-interrupter protection for some branch circuits. Does UL List such devices?