Specifications
24-36kVRed and black busbar heat shrink tube
flame retardant or non flame retardant
Rachem BBIT/BPTM
S1
Bus Bar Insulating Heat Shrinkable Tubing
Voltage Class 1kV~36kV
Ideal for high and low voltage bus bar insulation
Medium and heavy wall heat shrinkable tubing for protection and insulation of bus bar against accidents caused by electrified bare bus bar.
Applications
Bus bar insulation and protection
In switchgear cabinets where space is limited and air spacing between bus bars need to be kept at minimal
Features/Benefits
Reduces bus bar clearance requirements* , allow designers more freedom in designing switchgear cabinets when space is premium
Protects against accidental flashover up to 36kV
Protects against short circuit and electrical leakage caused small animals
Protects against corrosion, dirt and other contaminants that may cause accidental flashover
Halogen Free (optional)
Flame resistant with oxygen index higher than 27 (optional)
Available in continuous length roll form for convenient and economical installation
Temperature Range
Operating Temperature : -40 ºC ~ 105 ºC
Shrink Temperature : 125 ºC
Colour
Red, Yellow, Black, Green
Product Code Cross References
Raychem : BBIT / BPTM
DSG Canusa : CBTM / CBTH
3M : BBI
Technical Details
Test item | Test Standard | Typical Performance |
Tensile strength | ASTM D2671 | ≥10 Mpa |
Break down elongation | ASTM D2671 | ≥400 % |
Tensile strength after aging | ASTM D2671, | ≥10 Mpa |
break down elongation after aging (136 for 168h) | ASTM D2671 | ≥400 % |
Flame retardant | ASTM D2863 | Oxygen Index ≥27 |
Dielectric strength | ASTM D2671 | ≥15 kV/mm |
Heat shock (200 for 4h) | ASTM D2671 | no drop, no flow |
Low temperature flexibility (-40 for 4h) | ASTM D2671 | no cracking |
Water absorption | ASTM D570 A | ≤0.5 % |
Copper corrosion (158 for 168h) | ASTM 2671 | pass |
Long term ageing/ elongation at break | IEC 60684-2 | ≥175% |
Resistance to selected fluids: Tensile strength Elongation at break | IEC 60684-2 |
>8Mpa >250% |
Product Selection
a + b min. ~ max. | d min. ~ max. | S1-10 | min. thickness for 10kV-24kV shrink on the bus bar | S1-35 | min. thickness for 24kV-36kV shrink on the bus bar | ||
15 | 25 | 10 | 18 | Φ25/10 | 1.6 | Φ25/10 | 2.5 |
22 | 35 | 15 | 25 | Φ30/12 | 1.6 | Φ30/12 | 2.5 |
28 | 45 | 20 | 30 | Φ40/16 | 1.6 | Φ40/16 | 2.5 |
38 | 55 | 25 | 40 | Φ50/20 | 1.6 | Φ50/20 | 2.5 |
45 | 65 | 35 | 50 | Φ65/25 (Φ75/30) | 1.6 | Φ65/25 (75/30) | 2.5 |
55 | 90 | 40 | 60 | Φ85/35 (80/32) | 1.6 | Φ85/35 (80/32) | 2.5 |
70 | 110 | 50 | 80 | Φ100/40 | 1.6 | Φ100/40 | 2.5 |
90 | 140 | 60 | 95 | Φ120/50 | 1.6 | Φ120/50 | 2.5 |
105 | 180 | 70 | 120 | Φ150/60 | 1.6 | Φ150/60 | 2.5 |
130 | 210 | 85 | 140 | Φ175/75 | 1.6 | Φ175/75 | 2.5 |
140 | 260 | 95 | 170 | Φ210/85 | 1.6 | Φ210/85 | 2.5 |
