SRBB 50-18

Heat shrinkable medium wall tube
protection for busbar systems and reduction of minimum clearance
Art. no.
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Product family SRBB
Main description Heat shrinkable medium wall tube
Sub description protection for busbar systems and reduction of minimum clearance
Family description The heat shrinkable tubes type SRBB are medium-walled, without thermoplastic adhesive with a shrinkage ratio of 3:1. Typical applications are medium voltage substations up to 36 kV as well as suitable for corrosion protection.
Notes A standard spool may include sections which have been tied together., Other lengths available on request.
Characteristics Medium wall, Stabilized against UV rays, Halogen-free, Tracking resistance, Non-corrosive, Resistant to bacteria and fungi, Free of lead and cadmium, Silicone free
Applications Allows for clearance reduction between busbars in medium voltage substations up to 36 kV
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Test standards IEC 60684-2
Materials Cross-linked polyolefin
Selection Note spools
Length L 30 m
Colours red brown
Inner diameter before shrinking (mm) 50 mm
Inner diameter after shrinking (mm) 18 mm
Recovered wall thickness 2,7 mm
Hardness 39 Shore D
Hardness (associated standard) DIN 53505
Elongation at break 500 %
Elongation at break (associated standard) IEC 60684-2
Tensile strength at break 16 MPa
Tensile strength at break (associated standard) IEC 60684-2
Longitudinal shrinkage +/- 10 %
Longitudinal shrinkage (associated standard) IEC 60684-2
Shrink ratio 3 : 1
Shrink ratio (associated standard) IEC 60684-2
Eccentricity expanded 50 %
Eccentricity recovered 85 %
Eccentricity (associated standard) IEC 60684-2
Operating temperature range min -40 °C
Operating temperature range max 100 °C
Operating temperature range (associated standard) IEC 60684-3-283
Shrinkage temperature > 125 °C
Burning behaviour not self-extinguishing
Burning behaviour (associated standard) IEC 60684-2
Flexibility at low temperatures -40 °C
Flexibility at low temperatures (associated standard) IEC 60684-2
Specific volume resistivity 10¹² Ω cm
Specific volume resistivity (associated standard) IEC 60684-2
Dielectric strength ​​ 20 kV/mm
Dielectric strength (associated standard) IEC 60684-2
Corrosion none
Corrosion (associated standard) IEC 60684-2
Resistance to fungus and decay Rate 1
Resistance to fungus and decay (associated standard) IEC 60684-2
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Delivery scope Medium wall heat shrinkable tube on spool
Shelf life description Unlimited shelf life
Country of origin Germany
Customs tariff number 39173200
EAN/GTIN 4010311057224
Alternative quantity 1 1 1
Alternative unit of measure Meter Coil Pal. OW
Base quantity 1 30 600
Base unit of measure Meter Meter Meter
Lenght (mm) 0 457 1200
Width (mm) 0 457 800
Height (mm) 0 147 1130
Net weight (kg) 0,211 6,33 126,6
Gross weight (kg) 0,211 6,348 144,8