Description
Scotch® Rubber Splicing Tape 23 is a highly conformable, self-fusing EPR (Ethylene Propylene Rubber) based, high voltage splicing tape. It is a non-vulcanizing, shelf-stable tape with excellent electrical properties. Scotch® Tape 23 can be used as an insulation for low-voltage application as well as an insulation for splices up to 69,000 volts.
Agency Approvals & Self Certifications
RoHS Compliant 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.
Tape Features
- Can be used to splice and terminate cables whose emergency overload temperatures can reach 266°F (130°C)
- Based on Ethylene Propylene Rubber (EPR)
- Physical and electrical properties are unaffected by the degree of stretch
- Self-fusing tape
- Excellent electrical properties
- A special polyester liner which will not stick to the tape upon
1.Polyethylene (high and low density)
2.Cross-linked Polyethylene (XLP)
3.Polyvinyl Chloride (PVC)
4.Butyl Rubber
5.Ethylene Propylene Rubber (PVC)
6.Oil-based rubber
Applications
- Primary electrical insulation for splicing cable from 600 volts through 69,000 volts on all solid ielectric cables
- Primary insulation for building stress cones on cables up to 35,000 volts on all solid dielectric ables
- Jacketing on high-voltage splices and terminations
- Moisture sealing electrical connections
- Bus bar insulations
- End sealing high-voltage cables
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 Property (Test Method ASTM D-4325*) |
Typical Value US units (metric) |
| Color | Black |
| Thickness* | 30 mils (0.76 mm) |
| Tensile Strength* | 8 lbs/in (1,4 KN/m) |
| Ultimate Elongation* | 1000% |
| Operating Temperature | 194°F (90°C) |
| Emergency Operating Temperature | 266°F (130°C) |
| Fusion (ASTM D-4388) | Passes |
| Thermal Conductivity (ASTM D-1518) | .1208 Btu (hr)(sq ft) |
| Modulus @ 266°F (130°C) | See Characteristics & Test Data |
| Ozone Resistance (ASTM D-4388) | Passes |
| Electrical Property (Test Method ASTM D-4325*) |
Typical Value US units (metric) |
| Dielectric Strength* After Standard Conditioning After 96 hrs @ 96% RH |
800 V/mil (31,5 Mv/m) >90% of Std Condition Value |
| Insulation Resistance (ASTM D-1000) (Indirect Method of Electrolytic Corrosion) |
>1 x 106 megohms |
| Dissipation Factor | See Characteristics & Test Data |
| Dielectric Constant | See Characteristics & Test Data |
| Dielectric Strength at Elevated Temperature | See Characteristics & Test Data |
Product Specifications
The high-voltage corona-resistant tape is based on Ethylene Propylene Rubber and is capable of operation at the emergency cable temperature of 266°F (130°C). Scotch® Rubber Splicing Tape 23 may be applied in either the stretched or unstretched condition without resulting in loss in either physical or electrical properties.
The tape is split resistant, crack resistant, slip resistant and flag resistant when exposed to various environments (indoor or outdoor). It is compatible with synthetic cable insulations. Scotch® Tape 23 has a dissipation factor of less than 5% at 266°F (130°C), and a shelf life of 5 years.
Engineering/ Architectural Specifications
Splicing and terminating solid dielectric cables shall be done in accordance with drawings engineered by the splice material manufacturer such as the2047 Series available from 3M Company. Splices and terminations may be insulated using Scotch® Rubber Splicing Tape 23.
Characteristics and Test Data
Modulus at 266°F (130°C):
A high-voltage tape that constantly maintains a rubber-like consistency throughout the life of a splice. One method of determining a rubber material consistency is by measuring the modulus of the material. The modulus of a material is the stress required to elongate the material to a given elongation.
Figure 1 shows the 100% modulus (stress required to elongate Scotch® Tape 23 to 100% elongation) after heat aging the samples at 266°F (130°C) for a varying number of days. The results indicate a very stable product with excellent “body” or elasticity after oven aging at 266°F (130°C).
Dissipation Factor:
Figure 2 shows the dissipation of Scotch® Tape 23. This test was run according to ASTM D-150 at a stress of 50 V/mil (2,0 MV/m) and a frequency of 60 cycles per second.
Characteristics and Test Data, continued
Dielectric Constant:
Figure 3 shows the dielectric constant versus temperature of Scotch® Rubber Splicing Tape 23. This test was run according to ASTM D-150 at a stress of 50 V/mil (2,0 MV/m) and a frequency of 60 cycles per second
Dissipation Strength at Elevated Temperatures:
A high-voltage splice has a high dielectric strength at room temperature, but also good values at the temperature at which it is expected to operate. Figure 4 shows a plot of dielectric strength versus temperature. This test was run according to ASTM D-1000.
Dielectric Strength Versus Thickness:
Figure 5 shows a plot of dielectric strength in volts per mil versus thickness. As can be seen by the curve, the dielectric strength in the original thickness of .030” (,76 mm) is 800 V/mil (31,5 MV/m). However, the dielectric strength of a .020” (,51 mm) thickness of Scotch® Tape 23 is 1200 V/mil (47,2 MV/m). This test was run according to ASTM D-1000.
Installation Techniques
Scotch® Rubber Splicing Tape 23 should be applied in successive half-lapped, level-wound layers until desired buildup is reached. To eliminate voids in critical areas, highly elongate the tape.
Stretch tape in these critical areas just short of its breaking point. Doing so will not alter its physical or electrical properties. In less critical areas, less elongation may be used.
Normally, the tape is stretched to ¾ of its original width in these less critical areas. Always attempt to half-lap to produce a uniform buildup. When using Scotch® Tape 23 for splicing cables from 35 kV to 69 kV, always elongate the tape throughout the entire splice.
Techniques for the proper use of this tape are contained in standard and special prints available through the 3M Systems for Splicing and Terminating Program. These are available through the local 3M Electrical Markets Division representative
Shelf Life & Storage
This product has a 5-year shelf life from date of manufacture when stored in a humidity controlled storage (10°C/50ºF to 27°C/80ºF and <75% relative humidity).
The tape is not impaired by freezing or by overheated storage up to the point of flow, which prevents removal from the package.
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. 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. Any statements related to the product, which are not contained in 3M’s current publications, or any contrary statements contained on your purchase order, shall have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M.
Warranty; Limited Remedy; Limited Liability
This product will be free from defects in material and manufacture at the time of purchase. 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.
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