Vector January 2007

COVER STORY Explosion-proof transformers Information from Hansen + Genwest   Hansen + Genwest specialises in the manufacture of dry type transformers for industry and in particular the coal mining industry where rugged explosion proof designs are required. LEAD EDITORIAL The cost and effectiveness of the SABS electro-technical regulatory process by Chris Yelland, managing editor More>> ECA ELECTRICAL CONTRACTOR ECA courses for 2007 Past presidents - Geoffrey Jochelson 1968 - 1970 KZN regional news ECA(SA) Labour Service:Let us assist you! Past presidents - Terry Potgieter 1976 - 1977 President’s inaugural address ECA president’s report for 2006 Address to the AIE Council of Delegates in Heidelberg, Germany, September 2006 VIEWS, COMMENT and OPINION ECSA’s identification of engineering work (IDoEW) project Equipment suppliers’ road show Standards writing workgroups Response problems with LEDs LIGHTING TECHNICAL Domestic/residential lighting ‘Light and drama in miniature’ lighting scheme wins award DRIVES TECHNICAL The effects of increasing the air gap in an electric motor CONTROL TECHNICAL How to select a valve controller INSTALLATION TECHNICAL Saving energy - saving money! Combine theory with know-how for lightning protection LIGHTING NEWS Mini-spectrometer Moving efficient lighting into homes Application-based control gear Lighting management with fingertip control Lights for SARS’ admin building Lighting that creates mood Light fittings donated to children’s home Lighting dynamics at Auto Africa Africa Lighting company opens on Saturdays Radio modems for signal lighting Hazardous area products Budapest traffic lights Optimised electronic transformers Smaller electronic transformers DRIVES NEWS Rotary sensor with magnetic rings Protection for pump motors Success for industrial gear units Variable speed drives for Highveld Steel Incremental angular encoder Small-size starters Pump station switchgear Control panels for Namibian uranium mine Motion control software Railway current and voltage transducers Board mill control system Advances in metal forming CONTROL NEWS Programmable controllers for high-level languages Setting the scene, remotely The importance of authentication to production safety Compatibility with Windows Vista Compact temperature sensor with fast response SCADA, automation and control conference Highly modular small controllers Manufacturing data boosts pharmaceutical giant One-stop automation house Turning 85% failure into 30% improvement Valve control without compromises Open style network tap rail assembly Digital manometer with switch outputs Productivity improved seven-fold Accurate monitoring in cold storage Dealership agreement Technology Top 100 Communication solutions for electrical monitoring systems Hazardous area display workstation Magnetic cylinder switches for hazardous areas Sensors for corrosive environments Embedded controllers Field bus control for process valves Transmitters for measuring pressure Pressure gauges and stem thermometers Ethernet-enabled communication INSTALLATION NEWS 30W external type battery charger Hot water system monitor Efficient split-core current transformer Modular pluggable surge arresters Versatile plug connector system Portable non-contact infrared thermometers Electricity as a product High efficiency solar cell IT systems’ current/surge arrester Modular bells, buzzers and speaker sockets Safety and security exhibition Are clampmeters useful? Tube-maker buy-out Transformer facility extended Hydraulic safety life-line cable cutter Portable laser tools Rail-mounted terminal block marking SABS mark for plugs and sockets

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