Bus Bar Tube 10kV / 35kV DL/T1059-2007

Heat Shrinkable Tube on Bus Bar

Performance Standard: DL/T1059‑2007. Heat shrinkable tube on bus bar can be used in HV/LV circuit breaker cabinet in power plant & substation for bus bar protective/insulation material – against short‑circuit due to small animal creeping to the energized bus bar. Protection for human being touching the energized parts, anti‑pollution & condensate caused flash‑over. At the same time it can reduce the distance between phases and phases to ground and prolong the age of usage.

Technical Data

Property, test method and standard value

Property	Test Method	Standard Value
Operating temperature	IEC 216	-45°C to +105°C
Tensile strength	ASTM D2671	≥13 MPa
Elongation at break	ASTM D2671	≥300%
Tensile strength after aging	ASTM D2671 / 120°C,168h	≥11 MPa
Elongation at break after aging	ASTM D2671 / 120°C,168h	≥220%
Dielectric strength	IEC 243	≥25 kV/mm
Tracking resistant	ASTM D2303	3.75kV, 1h, pass
Volume resistance	ASTM D2303	≥1×10¹⁴ Ω·cm
Dielectric constant	IEC 250	3.0
Longitudinal shrinkage	—	≤10%
Eccentricity	ASTM D267	≤30%
Water absorption	ISO 62	≤0.1%
Flammability (Oxygen index)	IEC 93	≥28
Copper corrosion	ASTM D2671 / 120°C,168h	No corrosion
Cold bend	ASTM D2671 / -40°C,4h	No cracking
Minimum shrink temperature	—	100°C
Minimum fully recovered temperature	—	130°C

10kV Heat Shrinkable Tube on Bus Bar – Dimensions

Order reference, as supplied and after recovery dimensions, suitable busbar sizes

Order ref. Number	As supplied		After recovery		Suitable for rectangular Bus bar (mm)	Suitable for Circular Bus bar (mm)
Order ref. Number	ID (mm)	Wall Thickness (mm)	ID (mm)	Wall Thickness (mm)	Suitable for rectangular Bus bar (mm)	Suitable for Circular Bus bar (mm)
Ф20	≥20	1.2	≤8	2.5±0.1	20	15
Ф30	≥30	1.2	≤13	2.5±0.1	30	20
Ф40	≥40	1.2	≤16	2.5±0.1	40	25
Ф50	≥50	1.3	≤18	2.8±0.1	50	30
Ф60	≥60	1.3	≤25	2.8±0.1	60	40
Ф70	≥70	1.3	≤29	2.8±0.1	70	50
Ф80	≥80	1.3	≤33	2.8±0.1	80	55
Ф100	≥100	1.3	≤40	2.8±0.1	100	75
Ф120	≥120	1.3	≤47	2.8±0.1	120	85
Ф150	≥150	1.3	≤59	2.8±0.1	150	105
Ф180	≥180	1.3	≤70	2.8±0.1	180	120
Ф210	≥210	1.3	≤81	2.8±0.1	210	130
Ф240	≥240	1.6	≤84	3.9±0.1	240	140
Ф300	≥300	1.6	≤100	3.9±0.1	300	160

35kV Heat Shrinkable Tube on Bus Bar – Dimensions

Order reference, as supplied and after recovery dimensions, suitable busbar sizes

Order ref. Number	As supplied		After recovery		Suitable for rectangular Bus bar (mm)	Suitable for Circular Bus bar (mm)
Order ref. Number	ID (mm)	Wall Thickness (mm)	ID (mm)	Wall Thickness (mm)	Suitable for rectangular Bus bar (mm)	Suitable for Circular Bus bar (mm)
Ф25	≥25	2.0	≤10	4.8±0.2	25	15
Ф30	≥30	2.0	≤15	4.8±0.2	30	20
Ф40	≥40	2.0	≤16	4.8±0.2	40	25
Ф50	≥50	2.0	≤20	5.0±0.2	50	25
Ф60	≥60	2.0	≤25	5.2±0.2	60	30
Ф70	≥70	2.0	≤30	5.2±0.2	70	35
Ф80	≥80	2.0	≤32	5.2±0.2	80	40
Ф100	≥100	2.0	≤40	5.2±0.2	100	75
Ф120	≥120	2.0	≤50	5.2±0.2	120	85
Ф150	≥150	2.0	≤60	5.2±0.2	150	105
Ф180	≥180	2.2	≤70	5.6±0.2	180	120
Ф210	≥210	2.1	≤80	5.6±0.2	210	130