Contributors
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PHIL KREVELD: Right on the roof
Panel installers must study location and roof type before quoting, writes Phil Kreveld. Mounting materials are costly, labour time may increase, and an unhappy customer is ... -
The tender trap
Counting and measuring are central to accurate estimating, but there’s much more to it. Brian Seymour outlines the detail. In the world of competitive tendering, the ... -
Multimedia coaxing
Network technology that uses existing hybrid fibre coax cable looks good at first glance, but is it better than Ethernet? George Georgevits compares the two. An ... -
CHRIS HALLIDAY: Testing times
Testing and tagging of electrical gear is now the norm for businesses, but is it really necessary? Chris Halliday of PowerLogic investigates. The owner of a ... -
DAVID HERRES: Don’t always wave goodbye
The microwave oven is a simple appliance, and repair is not difficult as long as the hazards are recognised. David Herres explains. The first microwave ovens ... -
On the grid
Solar panel arrays can be better distributed for maximum ‘collectible’ characteristics. Phil Kreveld discusses the principles. Solar photovoltaic inverters differ from other types, often battery driven, ... -
Shine a light on solar
The basic principles of photovoltaic systems make useful reading for non-specialist electricians installing all or part of a system. Phil Kreveld sets them out. Lots of ... -
CHRIS HALLIDAY: To protect and serve, part one
The Los Angeles Police motto is also a good one for sparkies. In the first of two articles, Chris Halliday examines the more obscure types of ... -
Current concerns
Older houses were wired according to the safety standards of their time. Gary Busbridge calls for more RCDs to bring things up to date. There are ... -
CHRIS HALLIDAY: An acceptable drop
It might have been some time since you learned about voltage drop, so what are the requirements and the calculations? Chris Halliday explains. The voltage in ...