Sparks Electrical News September 2015

people on the move 24

Bright Spark

JB Switchgear

UnicloxTechnologies

The two desperadoes

JAKE Pearson and Guts Geraghty each accused the other of having betrayed their operation to the police. The Boss knewwho he thought had done it, but he could not prove his suspicion, so he picked up a small black bag and turning to Guts said, "In this bag are one black ball and one white ball. You will put your hand into the bag and take out one ball. If you take out the black ball you die, but if take out the white ball Jake dies. Choose!" Jake was grinning as the Boss said this, and Guts knew that he was in trouble. Turning to the Boss, he said, "I have just one re- quest. I do not wish to be responsible for announcing my own death.When I have taken the ball from the bag, I want Jake to take the other ball and show it to me.When he knows his fate, I will also knowmine" The Boss readily agreed, but Jake turned pale and then tries to run from the room.Why?

Evan Atherton , technical assistant.

Shorne Groep , key accounts manager.

Roland Ramasami , technical support manager.

Jacques Schoeman , sales manager.

CathleanWillemse , retail sales and marketingmanager.

July solution

Chopping the chocolate

Thirty-four breaks is the smallest number possible. Barry starts with one piece of chocolate. Every time he makes a break, he creates one extra piece of chocolate. This is true whether he breaks a small piece into two, or a large rectangle into two parts. Since he ends up with 35 pieces, he must have made 34 breaks.

OCTOBER FEATURES

ENERGY MEASUREMENT & SUPPLY

Editor: Erika van Zyl Advertising: Carin Hannay Production & layout: Colin Mazibuko Consultant: Ian Jandrell PrEng, BSc(Eng), GDE, PhD, FSAIEE, MIEEE Director: Jenny Warwick Publisher: Karen Grant Panel building, gauges, displays, maintenance, protection, protection relays, starters, drives, motor types, sizing, starting, stopping, refurbish- ment, controlling, enclosures, switches, push- buttons, LEDs, digital displays, relays, timers, temperature controls, process, building manage- ment, insulation testing, vibration monitoring, maintenance, flameproof equipment. MOTOR CONTROL CENTRES AND MOTOR PROTECTION MV/LV systems, transformers, mini-subs, suspen- sion devices, poles, switchgear, control gear, quality of supply protection, load control, cables and cable accessories, cable and jointing tech- niques, metering, energy management, energy efficiency, timers, load shedding, load balancing, testing equipment, hazardous areas, flameproof equipment.

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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.

september 2015

sparks

ELECTRICAL NEWS