ISS

UE

30

overhead and underground

power equipment APRIL / MAY 2014 / OHUG.COM

3M COLD APPLY GAINING MOMENTUM

IN NEW ZEALAND!

2 ISSUE 30

MAGIC GEL RAYTECH has developed an insulating and sealing polymeric gel with fast cross linking at normal room temperature.

The Magic Gel kit contains two bottles of fluid, a small mixing basin and a spoon. Specially designed with Health and Safety in mind and to eliminate detrimental effects on the environment, the fluids combine in equal quantities to provide a non-toxic, re-enterable cable jointing gel - ideal for filling enclosures, boxes and terminal blocks etc. It is most suitable for anti corrosion protection, insulating and sealing applications.The product: • Is non-toxic and safe • Is suitable for installations up to 1kV and 120

degrees Celcius • Has a very high resistance to natural aging • Cross-links within 10 minutes, ready to use • No shelf life

MAGIC JOINTS A range of self-sealing, straight through and 30 degree branch joints are also now available for copper and aluminium single, 2, 3 and 4 conductor cables. Polymer insulation is provided by Raytech’s two fluid Magic Gel system and can be used in place of cast resin.Characteristics: • Non-toxic • Self-sealing polymer insulation • For 0.6 - 1kV voltages • Guarantees protection of higher than IP68 • Can be used in place of cast resin joints • Permanently flexible • Low exothermic peaks

SKY PLASTFlame-resistant 2-component plastic • For enclosing and insulating electrical

and non-electrical components • Can be used in place of insulation tape,

heat shrink insulation and resinCharacteristics • Non-toxic • Insulating • Plastic • Permanently flexible and malleable • Suitable for any thickness, size and profile • Can be retrofit • Good dielectric characteristics • Cross-linkage in less than 5 minutes at room temperature • Temperature-resistant from 190°C to 250°C

The importance of Flame Retardant Tube in LV applications cannot be underestimated, especially in the Heavy Wall range. Heavy Wall Tube is normally installed in confined spaces, including LV panels, switchgear, cable trays, and underground environments. Places where, if started, a fire could destroy valuable plant and equipment and possibly put lives at risk. The Flame Retardant Tube will self extinguish, prohibiting extensive electrical and fire damage to your valuable assets.

The minimum shrink temperature of Heavy Wall Tube generally exceeds the melting temperature of the most common LV cable sheaths (predominately PVC and XLPE). Therefore, it is advantageous to minimise the cable’s exposure to excessive heat, which could create long term degradation of the cable insulation. You don’t want to compromise your cable insulation because you have applied excessive heat to your Heavy Wall Tube. This is why the appropriate shrink ratio of a minimum 3 to 1 is so important - to facilitate fast and accurate shrinkage so you don’t compromise your cable.

THE ADVANTAGES LS TUBE BRINGS YOU: • Flame Retardant • High performance adhesive provides

an absolute waterproof encapsulation • Suitable for submersible or direct buried installation

KEY SPECIFICATIONS: • Flame Retardant to VTFT (IEEE 383) • Shrink ratio 3:1 (minimum) • MIL –I-23035/15 • DNV & ABS’s Rules for Classification

of Ships and Offshore Unit • DNV Certificate NO. E-7978 • ABS Certificate NO. 06-BK 155018 • UV stable

All heatshrink is not created equal. To ensure you are providing maximum protection of your vital asset infrastructure – at highly competitive prices – make sure you specify Flame Retardant Heat Shrink Tube for all your LV applications. Only LS Tube meets all the rigorous international standards mentioned above. Peace of mind at no extra cost. Future proof with LS Cable & System’s flame retardant range. When next ordering heatshrink specify it’s flame retardant and UV stable LS Tube.

Call OHUG for stockists:

0800 GET OHUG

Find us online:

www.ohug.com

M 12 OR 3/8 INCH STAINLESS STEEL STUD

NUT, WASHERCLAMP

END FITTINGEND FITTING

SILICONE, HOUSING,DIRECTLY MOLDEDSILICONE, HOUSING,DIRECTLY MOLDED

METAL OXIDE VARISTOR MOV

GLASS COATING

FRP RODSFRP RODS

END FITTING

M 12 OR 3/8 INCH STAINLESS STEEL STUD

NUT, WASHER

M 12 OR 3/8 INCH STAINLESS STEEL STUD

4 ISSUE 30

3EK7 a top quality product • The silicone rubber housing is molded directly onto the MOV

blocks and the protection cage. It provides an excellent sealing system against moisture ingress and partial discharges. In addition, the MOV blocks are glass-collared to prevent aging.

• Highest quality materials. Silicone rubber is highly hydrophobic and maintains this ability to repel water and any deposits of pollution throughout its entire service life. This results in high tracking and erosion resistance. Furthermore, the silicone rubber housing is self-extinguishing and flame-retardant. These advantages provide maintenance free and reliable service life for 3EK7 arresters.

• Manufacturing plants are certified under ISO 9001 and ISO 14001.

• 3EK7 arresters have been type tested by an independent test laboratory.

Secure and reliable design • The 3EK7 series is based on a cage of pre-stressed fibre reinforced

plastic rods for high mechanical strength, reducing the risk of internal components being ejected. In the extremely rare event of the resistors being overloaded, arcing cannot result in a build up

of critical internal pressure, since the resistors are not enclosed in a sealed mechanical shell. Thus, the arc can escape through the silicone sheath, leaving the mechanical support structure of the enclosure unharmed.

• The cage is lightweight design and yet it offers excellent torsional, tensile and cantilever strength: Maximum working cantilever strength of 350 Nm.

• Silicone rubber is resistant to UV and ozone exposure as well as to all common organic and non-organic solvents and cleaning agents. Therefore, the 3EK7 is suitable for any environmental conditions of industrial areas as well as in desert or coastal regions.

• 3EK7 arresters are suitable for a temperature range from –55° C to +60° C.

• Application altitude up to 3600 m a.s.l. • 3EK4 and 3EK7 arresters are now available.

For data-sheets and specifications

CALL 0800 GET OHUG

NOW AVAILABLE THROUGH OHUG SIEMENS ARRESTER RANGE

PRODUCT SHOWCASE

SHEAR BOLT LUGS AND BARRIER LINKS

CABLE ACCESSORIES

Full range of tinned Copper Lugs and Links, Line Taps , Bi Metals, PG Clamps.

6 ISSUE 30

THE SIMPLE APPLICATION OF A 3M™ COLD SHRINK CABLE TERMINATION

Ever since the installation of the first 3M™ Cold Shrink termination in 1972, 3M have been working hard to develop products that deliver market leading installation efficiencies and consistent reliability to their customers. 3M’s termination products give contractors and clients alike the confidence they need in their power networks as both hard and soft failure costs become more and more critical.

Much like 3M’s range of cable jointing products, the nature of Cold Shrink ensures a constant radial pressure is applied to the cable.

It is this concept, combined with a comprehensive factory testing programme and a simple installation process that makes Cold Shrink the preferred termination solution for both public and private network operators across the world.

From listening to their customers and committing to sustained research and development, 3M can offer you an excellent choice in Cold Shrink product technology in terms of product cost and installation simplicity.

QT-III QT-IIMoisture Blocking Mastic

Integrated into termination

Applied separately

Outer Insulator

Very good track resistance

Good track resistance

Stress Control Tube

Integrated into termination

Integrated into termination

Silicone Grease-stress Relief

No - Integrated mastic is sufficient

Yes - Applied separately

Stress Control Mastic

Integrated into termination

No - Requires silicone grease

PREMIUM 3M™ COLD SHRINK TERMINATIONS - FULLY INTEGRATED :: QUICK TERM III (QT-III) Born out of our unparalleled experience in the development of Cold Shrink technology, this fully integrated premium cable termination offers the greatest simplicity and flexibility in 3M’s range. 3M’s premium termination covers a wide range of cable sizes and types as well as accommodating voltages up to 69kV. Shorter installation length enable this product to fit into a wide range of boxes and fewer installation steps mean there is less room for jointer error.

STANDARD 3M™ COLD SHRINK TERMINATIONS - PART INTEGRATED :: QUICK TERM II (QT-II) 3M part integrated Cold Shrink termination offers a viable cost-based alternative to heat shrink cable terminating technology. Additional process steps to 3M’s premium range (above) mean that comparative time savings are less but the benefits of not having to use heat or extra tooling still apply. This range covers many of the most common cable configurations and size ranges.

3M™ TERMINATION ACCESSORIES To partner 3M’s range of terminations, we can offer a full range of fully tested termination accessories too.

Prepare the cable as normal and clean with 3M™ Cable Wipes

1

Begin to remove the inner core, allowing the termination to shrink down onto the cable

3

Place the 3M™ Cold Shrink termination body over the cable end and position at the correct point on the cable

2

Once the inner core has been fully removed, the termination installation is complete!

4

3M Barrier Boots are suitable for both resin cast and porcelain bushings over a wide range of cable sizes.

3M Gland Kits use Cold Shrink as the sealing method – further reducing installation cost and H&S related administration.

Breakthrough methodology and materials don’t just stop with our cable accessories. The ARCUS range of cable lugs on offer represent cutting edge technology too.

OVER 10 MILLION COLD SHRINK TERMINATIONS AND JOINTS INSTALLED

OH

UG

STOC

KS Q

T-III

PRODUCT SHOWCASE

7ISSUE 30

55

432

1

CABLE JOINTER TOOLS AND TOOL BAGS

IF YOU’RE FAMILIAR WITH A PENCIL SHARPENER AND A CORK SCREW, YOU’RE READY TO USE THIS INTERCABLE IMS 20KV INSULATION REMOVAL TOOL!

IMS 20kV CABLE STRIPPING TOOL

HANDLE AND 95MM STRIPPING HEAD

22kV 95MM CABLE(XLPE insulation)

EXAMPLE OF APPLICATIONS:

1. Fully insulated cable cutter / 16230322. Reversible ratchet (with Arcus lug) / 150223. Clamp device for screw connectors (with Arcus lug) / 220134. Jacket ripper (sheath removal tool) / AV62205. Semi Con removal tool / AV6400 6. Insulation removal tool 11-33kV for larger

diameter insulation / 17230

2 31

6 OHUG are the official appointed agents for Intercable in New Zealand.OHUG has a full range of Cable Jointer and electricians tools, which are all fully insulated, plus LV Live End Seals, all available ex stock. OHUG carry a full Intercable warranty on all product sold in New Zealand by OHUG.

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6

PRODUCT SHOWCASE

Purchase this complete jointers tool kit which covers from 25mm 11kV to 800mm 33kV (Order Code 1799002) and receive 1 x IMS 20kV Handle and your choice of 4 x IMS 20kV stripping heads FREE !

8 ISSUE 30

RU

SSELL HA

RPER

SELVA

KU

MA

R - 3M

SOME SAY HE DRINKS 20LTRS OF TEA PER DAY! WE KNOW HIM AS RUSSELL...

• Over 33 years experience in the UK across the ESI networks.

• Director of a very successful cable jointing business in the UK before emigrating to NZ.

• In NZ he joined Utilitech training centre as section head cable jointer trainer and as an assessor/auditor for Vector.

• EWRB practising registered cable jointer.

Russell has been heading development with 3M’s engineers with the development of customised termination and jointing solutions combined with ARCUS to suit NZ’s harsh environment and solve performance issues currently experienced with Heatshrink.

IT IS RUMOURED HE IS AN ELECTRICAL ENGINEER AND A CABLE JOINTER! AND ON THAT BOMB SHELL…

• 10 years experience in 3M Electrical Markets and cable accessories.

• International experience throughout Southeast Asia , Australia and New Zealand.

• Qualified Electrical Engineer with Bachelor’s Degree in Electrical Engineering.

• Member of IEEE Power & Energy Society

• Extensive experience with cable jointing accessories up to 145kV.

We have the experts to drive your network into the future and join the rest of the world with latest technology, from 3M the inventors of Cold Shrink technology.

LIZ HICKSON CUSTOMER SERVICE SALES

Liz joined our growing sales team in February. Her contact details are below.

Email : Liz@ohug.com Mobile : 021 737 656