We had a recent job in Lewisham at a garage who had bought some new ramps and a rolling road for doing their MoT brake tests. They had been fixed to the floor and needed wiring in. They had contacted an electrician in Lewisham who had not really been up to the job – he was a one-man-band rather than a commercial electrician and had little experience with working on three-phase supplies. He had been round to the garage, taken a look at what was needed and realising that he was out of his depth he backed off […]
50w NVC Orlando LED Floodlights
During January, we landed several garden lighting jobs around south London. It’s to be expected I suppose since the middle of winter is largely the ‘closed season’ for gardeners. So they wait until it’s the coldest possible time and then call us in to sort out their lighting! Still, we are well used to working outside and in the cold so it’s all in a day’s work. A client in Dulwich needed passive infrared detectors fitting for their garden floodlights, 50w NVC Orlando LED models. These are stylish and […]
Electric vehicles are not new, in the early 1900’s, Ferdinand Porsche produced the world’s first electrically driven vehicle and also the world’s first hybrid too. But petrol and then diesel powered vehicles caught on and electric vehicles slipped into the background other than the iconic milk float. It was only at the opposite end of the century, with greenhouse gas emissions increasing rapidly, that the electric vehicle has resurfaced as a serious contender in the market.
But what are we, commercial electricians, doing talking about the history of the motor industry?
Simple, as electricians, we have always […]
Professional installation of switchgear in London
When switchgear is installed, it needs regular checking and maintenance to ensure that it remains safe and working properly. We have encountered many situations where switchgear has been fitted in an industrial unit years ago and hardly looked at since. Changes to the network that feeds it such as an increase in the infeed capacity or changes to the systems fed from the switchgear can all contribute to over-stressing. Switchgear is over-stressed when the potential fault energy could exceed the fault rating.
Dangers of over-stressed switchgear