Page 1 of 3 Scotch 23 All-Voltage Splicing Tape Data Sheet Product Description Electrical Properties Scotch 23 Electrical Tape is a highly conformable self-fusing Test Method Typical Value* EPR (Ethylene Propylene Rubber) based, high voltage splicing Dielectric Strength ASTM-D4325 tape. It is a non-vulcanising, shelf-stable tape with excellent After Standard Conditioning 31.5 MV/m electrical properties. 23 Tape can be used as an insulation for After 96 hours 96% RH >90% of Std low-voltage applications as well as an insulation for splices up to Condition Value 69kV. Insulation Resistance ASTM-1000 6 Tape Features (Indirect method of electrolytic >1 x 10 Can be used to splice and terminate cables whose emergency corrosion) megohms overload temperatures can reach 130C. Dissipation Factor See Section 5 Based on Ethylene Propylene Rubber (EPR). Dielectric Constant See Section 5 Physical and electrical properties are unaffected by the Dielectric Strength at elevated degree of stretch. temperature See Section 5 Self-fusing tape. *This data is not to be used for specification. Values listed are Excellent electrical properties. for typical properties and should not be considered minimum or A special polyester liner which will not stick to the tape maximum. upon unwind. Compatible with all solid dielectric cable insulation:- Specifications Polyethylene (high and low density). Product Cross-linked polyethylene (XLPE). The high-voltage corona-resistant tape must be based on ethylene Polyvinyl chloride (PVC). propylene rubber and be capable of operation at the emergency Butyl rubber. cable temperature of 130C (266F). The tape must be capable Ethylene Propylene Rubber (EPR). of being applied in either the stretched or unstretched condition Oil-based rubber. without any resulting loss in either physical or electrical properties. Applications The tape must not split, crack, slip or flag when exposed to Primary electrical insulation for splicing cable from 600V to various environments (indoor and outdoor). The tape must be 69kV on all solid dielectric cables. compatible with all synthetic cable insulations. The tape must Primary insulation for building stress cones on cables up to have a dissipation factor of less than 5% at 130C (266F) and 35kV on all solid dielectric cables. must have a shelf life of 5 years. Jacketing on high-voltage splices and terminations. Engineering/Architectural Specification Moisture sealing electrical connections. Splicing and terminating solid dielectric cables shall be done in Bus bar insulations. accordance with drawings engineered by the splice material End sealing high-voltage cables. manufacturer such as the 2047 series available from 3M Company. All splices and terminations shall be insulated using Data Typical Properties Scotch Brand 23 Electrical Tape. Physical Properties Test Method Typical Value* Characteristics and Test Data Colour Black Modulus at 130C (266F) Thickness ASTM-D4325 0.76mm A high-voltage splicing tape must constantly maintain a rubber- Tensile Strength ASTM-D4325 1.4KN/m like consistency throughout the life of a splice. One method of Ultimate Elongation ASTM-D4325 1000% determining a rubber material consistency is by measuring the Operating Temperature 90C (194F) modulus of the material. The modulus of a material is the stress Emergency Operating Temperature 130C (266F) required to elongate the material to a given elongation. Fusion, ASTM-D4388 Passes Thermal Conductivity 0.1208 Btu ASTM-D1518 (hr)(sq ft) (F per ft) Modulus 130C See Section 5 Ozone Resistance ASTM-D4388 Passes 3M UK PLC 3M Ireland 3M UK PLC Electrical Products Sales Office Sales Office 3M House, PO Box 1 3M House, Adelphi Centre PO Box 393 Bracknell, Berkshire RG12 1JU Dun Laoghaire, Co Dublin, Ireland Bedford MK41 0YE Telephone: 01344 858616 Telephone: 353 1 280 3555 Telephone: 01234 229462 Fax: 01344 858758 Fax: 353 1 280 3509 Fax: 01234 229433Page 2 of 3 Scotch 23 All-Voltage Splicing Tape Data Sheet Figure 1 shows the 100% modulus (stress required to elongate 23 Tape to 100% elongation) after heat ageing the samples at 130C (266F) for a varying number of days. The results indicate a very stable product with excellent body or elasticity after oven ageing at 130C (266F). Dielectric Strength at Elevated Temperatures A high-voltage splice must not only have a high dielectric strength at room temperature, but it must also have good values Dissipation Factor at the temperature at which it is expected to operate. Figure 4 Figure 2 shows the dissipation of 23 Tape. This test was run shows a plot of dielectric strength versus temperature. This test according to ASTM-D150 at a stress of 50 V/mil was run according to ASTM-1000. (2.0 MV/m) and a frequency of 60 cycles per second. Dielectric Constant Figure 3 shows the dielectric constant versus temperature of 23 Tape. This test was run according to ASTM-D150 at a stress of 50 V/mil (2.0 MV/m) and a frequency of 60 cycles per second. 3M UK PLC 3M Ireland 3M UK PLC Electrical Products Sales Office Sales Office 3M House, PO Box 1 3M House, Adelphi Centre PO Box 393 Bracknell, Berkshire RG12 1JU Dun Laoghaire, Co Dublin, Ireland Bedford MK41 0YE Telephone: 01344 858616 Telephone: 353 1 280 3555 Telephone: 01234 229462 Fax: 01344 858758 Fax: 353 1 280 3509 Fax: 01234 229433