Sparks Electrical News July 2016

PEOPLE ON THE MOVE

24

ANTLEY LIGHTING

WEBBERS ELECTRICAL

Vusumuzi Sibiya, sales consultant.

John Callaghan operations director.

Michiel Coetzee commercial director.

BRIGHT SPARK

Scan this QR code to read the latest issue of Sparks Electrical News online.

SUBMIT your photos of new appointments and promotions to People on the Move at sparks@crown.co.za. All photos must be in jpeg format and high resolution (at least 1 MB when attached) .

WEIGHTING IN VAIN Mr Bloggs cut logs for a living. Although he weighed 100 kg himself, he could lift a weight of 150 kg with his bare hands. However, he wasn't satisfied with his own strength, so he installed a pulley to help him He tried it out by attaching

a log to the hook and pulling, as the picture shows. What was the heaviest log he could lift in this way? How much could he lift if he stood out in the yard?

JUNE SOLUTION A QUESTION OF BALANCE

The total weight of all the sacks is 123 kg, so they would be balanced best if there were 61 kg in one pannier and 62 kg in the other. This is possible by putting 35 + 16 + 11 = 62 in one, and 24 + 17 + 13 + 7 = 61 in the other. AUGUST FEATURES • Motor control centres and motor protection • Energy Efficiency • Lighting

Buyers’ guide • Lighting (lamps and controlgear) Deadlines • Advertising booking: 24 June 2016 • Editorial: 27 June 2016 • Advertising material: 4 July 2016

Editor: Erika van Zyl Advertising: Carin Hannay Design: Anoonashe Shumba, B.Tech Hons Creative Art & Design (CUT) Zim Consultant: Ian Jandrell PrEng, BSc(Eng), GDE, PhD, FSAIEE, MIEEE Publisher: Karen Grant Deputy Publisher:

Wilhelm du Plessis Published monthly by: Crown Publications cc P O Box 140 Bedfordview, 2008 Tel: (011) 622-4770 Fax: (011) 615-6108

e-mail: sparks@crown.co.za Website: www.crown.co.za Printed by: Tandym Print

The views expressed in this publication are not necessarily those of the editor or the publisher.

This publication is distributed to electrical contractors, wholesalers, distributors, OEMs, panel builders, Eskom, mining electricians and consulting engineers (electrical) as well as libraries, members of IESSA and public utilities.

Total 6 779 per month.

SPARKS ELECTRICAL NEWS

JULY 2016