Electrical Markets Division

© 3M 2009. All Rights Reserved.

High Voltage Cable Accessories

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Electrical Markets Division

© 3M 2009. All Rights Reserved.

New 72.5 kV Class Termination

QTIII 7673-S-8

• 72.5 kV Class (Umax)

• Pollution level “High”

• Compact design - comparable length to porcelain pot-heads

• Cable cross sections up to 3000 kcmil

• Independent test report for IEEE 48 requirements

© 3M 2009. All Rights Reserved.

3

Electrical Markets Division

Advantages of Using QTIII 7673-S-8

Reduced installed length (approx. length 40-42” Installed)

Range taking capability (350 – 3000 kcmil)

Ease and consistency of installation

Cold shrink

Fewer component pieces (5 installed steps)

Simplified installation

No special tools required

QT-III field proven track resistance silicone rubber

Cold shrink (living seal) – moves with thermal contraction and expansion

Dry termination

Source of supply, New Ulm, MN

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Electrical Markets Division

© 3M 2008. All Rights Reserved.

Termination Design

Cable Brackets

Available with or without springs

Steel Plate

For retro-fit applications

Drilled to accept steelwork for

various porcelain / composite

terminations

© 3M 2008. All Rights Reserved.

Si HiK

Tube

Semicon

Tube

Semi Con HiK

Design

Coextruded tube (Hi K &

Insulation)

Hi K adapter

2 sealing tubes – top and

bottom seals

Shorter length

Unique stress control design

Coextruded tube & insulator

combination reduces surface

stress

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Electrical Markets Division

Prepare cable and

Install Grounding Install the Hi-K stress

control adapter

Install the termination

body

Install the cable

jacket seal

Install the cable lug Install the lug seal

3M QTIII 72.5 kV Termination Key installation steps

6

Electrical Markets Division

© 3M 2009. All Rights Reserved. © 3M 2008. All Rights Reserved.

Retrofit Applications

Steel Plate and

bracket

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Electrical Markets Division

We’re With You in the Trenches

High Voltage Cable Accessories Services:

Project Consultation

Kit Customization

Installation Training

Technical Support

Installation Monitoring

Electrical Markets Division

Legal Information

© 3M 2011. All Rights Reserved.

Important Notice

Before using this product, you must evaluate it and determine if it is suitable for your intended

application. You assume all risks and liability associated with such use.

Warranty; Limited Remedy; Limited Liability.

3M’s product warranty is stated in its Product Literature available upon request. 3M MAKES NO

OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective

within the warranty period stated above, your exclusive remedy shall be, at 3M’s option, to replace or

repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by

law, 3M will not be liable for any indirect, special, incidental or consequential loss or damage

arising from this 3M product, regardless of the legal theory asserted.

3M is a trademark of 3M Company.

Used under license by 3M subsidiaries and affiliates.