Posts tagged as Connie Jonker

A new approach to luminaire quality evaluation

In August 2014, IESSA formed the Lighting Industry Technical Committee (LITC) to deal with matters of concern to the South African lighting industry. The LITC has also formed a working group tasked with evaluating the status of key industry challenges. The committee makes proposals to formulate action plans to deal with matters including SABS certification […]

Vector Inbox: October 2014

  This month, our readers respond to our articles on training in the electrical contracting industry and on staying abreast with legislation, and voice concern about IESSA’s new committee to combat sub-standard product. Our winning letter Re: “The challenges of training in the electrical contracting industry” Dear Editor In the article, “The challenges of training […]

Q&A: Ask an expert

  In this article, we talk to IESSA technical adviser Connie Jonker about LEDs and find out whether cost-benefit studies have been conducted on them; whether manufacturers’ temperature-rise and lifetime claims hold truth, and whether we should be concerned about some imported LEDs, among others. Are there cost-benefit studies available on these lighting sources? Cost […]