We live under the umbrella of an intricate and fascinating web of infrastructure that enables every

We live under the umbrella of an intricate and fascinating web of infrastructure that enables every aspect of modern technology. But how often do we really look at it? I’ve been intrigued by utility poles for years, and I’ve picked up a thing or two that I’d like to share. Bear in mind these are just my observations from the ground in my area; I’m sure utility professionals will have better information, and regional practices will no doubt lead to very different equipment arrangements. But here’s a little of what I’ve picked up over my years as a pole geek. Very few utility poles are used for just one utility. Poles that house multiple services, like power, telephone, and cable, are called joint poles and are covered by strict safety rules that separate the utilities spatially. In general, the most dangerous things on a utility pole are at the top. That makes sense – get the scary stuff as far away from the humans as possible. This is known as the supply space, and it’s where you’ll find both the primary lines, which distribute high voltage, and the secondary circuits, which have been stepped down by distribution transformers. If there are streetlights or traffic signals attache...

Electrical  installation guide According to IEC international standards Electrica l insta lla tion guide 2016 01/2016

Electrical  installation guide According to IEC international standards Electrica l insta lla tion guide 2016 01/2016 As standards, specifications and designs change from time to time, please ask for confirmation of  the information given in this pubication. This document has beenprinted on ecological paper ™ EIGED306001EN ART.822690 35, rue Joseph Monier CS30323 F-92506 Rueil-Malmaison Cedex RCS Nanterre 954 503 439 Capital social 928 298 512 €  www.schneider-electric.com Schneider Electric Industries SAS ™ This technical guide is the result of a collective  effort. Responsible for the coordination of this  edition: Laurent MISCHLER Edition: 2016Price: 60 €  ISBN: 978.2.9531643.3.6  N° dépôt légal: 1er semestre 2008  © Schneider Electric  All rights reserved in all countries The Electrical Installation Guide is a single document covering the  techniques and standards related to low-voltage electrical installations.  It is intended for electrical professionals in companies, design offices,  inspection organisations, etc. This Technical Guide is aimed at professional users and is only intended  to provide them guidelines for the definition of an industrial, tertiary or  domestic ...