Sparks Electrical News June 2015

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sparks
ELECTRICAL NEWS june 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
Managing member:
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
24
May solution
Bright Spark
Sold 50, free 6 790, total 6 840 per month.
Long distance travel
Harry Hoppit, the famous solo airman, was in his
London penthouse suite planning his next flight.
" Maybe I'll go over the North Pole," he said out
loud, looking out of the window towards the hills
of Hampstead. "On the other hand, I could go
via America." he muttered to himself, looking out
towardsWestminster Abbey and the Thames Valley
beyond.
"Why don't you just take the quickest route?"
asked his girlfriend, Persephone.
"It makes no difference," he replied. "What's a few
miles here or there, when I'mgoing so far?" and he
continuedmuttering to himself, "Perhaps I should fly
over India ..."
What was Hoppit's destination?
Vert Energy Voltex
JULY FEATURES
Regular topics such as cables, cable acces-
sories, cable management systems, cable
sizing, skirting, trunking, conduit, cable trays,
cable marking and labelling, cable jointing
techniques, wire sizing, fault finding, hazard-
ous areas, flameproof, cable terminations,
glands, cable installations and trenching will
be included.
CABLES ANDCABLE ACCESSORIES
STANDBYANDEMERGENCY POWER
Stand-alone generator sets, batteries, un-
interruptible power supplies, maintenance
powerline filtering and testing, emergency
wiring and lighting, supplies for computer
rooms, hospital supplies, process equipment
StevenWard,
service technician,
electric power
generation.
CharlesMthiyane
Service technician,
electric power
generation
Johnny Canada
technical services
manager, electric
power generation
Jacques vanWyngaard,
sales representative,
Voltex
Bloemfontein.
AnsonetVerveld,
marketing assistant,
Cabstrut,
Johannesburg.
Michael van der Merwe ,
product supervisor,
VSS.
The Greek Cross
Peter went round the edge of the cross, cutting off
these four small triangles, which fit into the remain-
ing edge to form the square.
Jane wanted tomake two cuts parallel to Peter's
cuts – straight through the middle, like this:
It is a curious fact that you canmake two cuts paral-
lel to Jane's through any point inside the central
square of the cross, and you will get a dissection
into the same square.