Sparks Electrical News

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sparks
ELECTRICAL NEWS november 2015
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.
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
Published monthly by:
Crown Publications cc
P O Box 140
Bedfordview, 2008
Tel: (011) 622-4770
Fax: (011) 615-6108
e-mail:
Website:
Printed by:
Tandym Print
The views expressed in this publication are not
necessarily those of the editor or the publisher.
people on the move
28
Total 6 779 per month.
Bright Spark
A hairy situation
A riddle party
Uncle Jack knew that the number of hairs on a
human head is at most about 200 000, while the
total population of the world is more than
5 000 000 000.
Therefore on average, you can expect about
25 000 other people to have the same number of
hairs on their heads as on yours. The chance that
no-one has the same number is so small as to be
insignificant which is why Uncle Jack was smiling to
himself even though he had never counted the hairs
on Gary's head.
"Ooh, this is creepy!" said
Cathy, reading out loud.
"The man whomade it
did not want it, the man
who bought it did not use
it and the man who used it
never saw it. What is it?"
"Here's another," said Barry.
"You can only holdme for seconds, sometimes you
lose me, and yet I am with you all your life. What
am I?"
"What belongs to you, which you would never
want to get rid of, but which other people use far
more than you do?" asked Peter, joining in.
"I know that one!" said Linda. "What is broken as
soon as you name it?"
"What animal eats the least?" asked Garry.
"What will grow if you feed it, but dies if you give
it water?"
"The more you take, the more you leave behind.
What are they?"
Can you say?
DECEMBER FEATURES
Power tools, hand tools, tool storage,
scaffolding, test and measuring instru-
ments/tools and accessories (DMMs, im-
pedance testers, etc.) measuring supply
quality, tool calibration, bakkies, trailers,
protective clothing standards.
Enclosures, earth leakage devices, cir-
cuit breakers, fuses, surge and lightning
protection, metering switches, dimmers,
sockets, disconnectors, Certificate of
Compliance, testing and measuring in-
struments, tools and accessories, cabling
glands, flameproof.
DISTRIBUTION BOARDS, SWITCHES,
SOCKETS AND PROTECTION
TOOLS OF THE TRADE
ECA(SA)
FloreneMabena,
regional office
administrator
and executive secretary,
national marketing
committee.
Ann Petzer,
national
CETA coordinator.
Zinhle Ramashala,
national executive
assistant.
Kingsley Segoane,
technical sales
representative,
Pretoria branch.
BEKA Schréder SEW-Eurodrive
Johan van Graan,
technical trainer,
The Drive Academy.