3M 13 Scotch Electrical Semi Conducting Tape (3/4″ X 15′)

Description

Scotch® Electrical Semi-Conducting Tape 13 is a highly conformable, semi-conducting EPR (Ethylene Propylene Rubber) based high-voltage splicing tape. It is nonvulcanizing and shelf stable, with stable conductivity over a wide temperature range. Its conductivity is not affected, except by low-viscosity oils. The conductivity of cable semiconducting jackets is not affected by Scotch® Electrical Semi-Conducting Tape 13.

• Semi-conducting (low resistivity)
• Retains conductivity with strength
• Elongates easily to conform to irregular shapes
• Stable at elevated temperatures (130°C / 266°F)
• Compatible with most solid dielectric cable insulations and conductors
• Excellent resistance to cracking or checking from solvents, UV, or moisture
• Compatible with high-voltage splicing and terminating materials
• Usable for indoor or outdoor applications
• Meets requirement of ASTM-D-4388, Type IV

 

Applications

• To electrically round out high-voltage connectors and to bond to insulating materials to minimize electrical stresses
• Continue semi-conducting strand shielding found in solid dielectric (polyethylene, XLP, EPR, etc.) cables at 5 kV and above
• Provide shielding for cable joints on solid dielectric insulated power cables (shielded or concentric neutral)
• Replace semi-conducting layer beneath metallic shield of similar cables in case of damage (screening)
• Make conductive portion of stress cone of power cable termination on solid dielectric insulated power cables
• Maintain positive connection between concentric neutral semi-conducting jackets of power cables and semi-conducting surfaces of plug-in units
• Establish a more positive contact between concentric neutral wires and pre-molded devices already installed with too much jacket exposed
•  Round out bolted connections on insulated bus bars

 

Agency Approvals & Self Certifications

RoHS 2002/95/EC
RoHS Compliant 2002/95/EC” means that the product or part (“Product”) does not contain any of the substances in excess of the maximum concentration values in EU Directive 2002/95/EC, as amended by Commission Decision 2002/618/EC, unless the substance is in an application that is exempt under RoHS. This information represents 3M’s knowledge and belief, which may be based in whole or in part on information provided by third party suppliers to 3M.

 

Typical Properties

Not for specifications. Values are typical, not to be considered minimum or maximum. Properties measured at room temperature 73°F (23°C) unless otherwise stated.

Physical Properties	Typical Value US units (metric)
Temperature Rating: Normal Emergency Cable	194°F (90°C) 266°F (130°C)
Thickness ASTM D-4325	30 mils
Tensile Strength ASTM D-4325	6 lbs/in
Elongation ASTM D-4325	800%
Fusion ASTM D-4388	pass

 

Electrical Property	Typical Value US units (metric)
Volume Resistivity ASTMD D-4325	10³ ohm-cm
Field Test Resistance (see Figure 1 below)	10,000 ohms

 

Field Test

Scotch® Electrical Semi-Conducting Tape 13 can be checked for resistance with an ohmmeter. After elongating the tape 25% of its original width, probe points placed one inch apart on tape should measure 10,000 ohms or less. Figure 1 illustrates the type of results which may be expected in the field.

 

Characteristics and Test Data

Effects of Scotch® Electrical Semi-Conducting Tape 13 on resistivity of semiconductive cable shield.
The Insulated Conductor Committee (ICC) has set a standard for compatibility of materials placed on shielded cables. When tested according to ICC Guide P1026, products in contact shield shall have a resistance measurement below ten ohmmeters. Scotch® Electrical Semi-Conducting Tape 13 complies with requirements of ICC Guide P1026.
Resistivity of cable semi-conductive shield overwrapped with Scotch® Electrical Semi-Conducting Tape 13 remained the same as, or lower than, that of the exposed shield (control). This test shows Scotch® Electrical Semi-Conducting Tape 13 does not significantly affect semi-conductive cable shields.

 

Engineering/ Architectural Specification:

Jointing (splicing) and terminating shall be done according to engineering print supplied by manufacture of jointing or termination materials for specific cable approved by specifying engineer. Alternate: Jointing and terminating engineering drawing shall be compatible with specific cable approved by specifying engineer.

 

Installation Techniques:

Scotch® Electrical Semi-Conducting Tape 13 is usually wrapped in half-lapped layers. Highly elongate tape when overwrapping connectors, terminal lugs, and near edges of cable metallic shield, semi-conducting cable tape and semiconducting jackets.
Note: Stretching 13 Tape increases its conductance and will not harm it in any way.
Caution: Scotch® Electrical Semi-Conducting Tape 13 is not oil resistant. It should not be used in splicing and terminating cables which contain oil or slippery compounds as part of dielectric such as PILC or VCLC.
Techniques for proper use of this conductive tape are contained in standard and special prints available through 3M Systems for Splicing and Terminating. Ask your local 3M sales representative.

 

Specifications

Scotch® Electrical Semi-Conducting Tape 13 must be based on ethylene rubber and be capable of operation at the emergency cable temperature of 130°C.
It must be usable without covering, both indoors and outdoors, in a highly stretched
Condition, without splitting or cracking; it must be compatible with all common solvents, adhesives, and high-voltage splicing and terminating insulations and must not adversely affect semi-conductive cable jackets.

 

Shelf Life & Storage

This product has a 5-year shelf life from date of manufacture when stored in a humidity controlled storage (10°C/50°F to 27°C/80°F and <75% relative humidity).

 

Availability

Scotch® Electrical Semi-Conducting Tape 13 is available from your local 3M authorized distributor in the following standard roll sizes: 3/4 in. x 15 ft.
Other lengths and widths are available by special request.