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Clip-on silicone tubes, open insulating tubes

Clip-on silicone tubes, open insulating tubes

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Application areas:

Insulation protection for bare wires in electrified railways and power grids, and insulation protection for substations.

Product Description

This product is widely used in the insulation protection of bare wires in electrified railways and power grids. It has the characteristics of safe and reliable electrical performance, convenient installation, no need for free ends, and no open flame. It is widely used in places where bare power lines pass through trees, obstacles, and where insulation protection is strengthened.

Product Parameters

Physical, chemical, and electrical performance testing standards (Table 1)

Serial Number Testing items unit Standard requirements Test methods
1 Electrical strength test KV/mm ≥20 GB/T 1408.1-2006
2 Volume resistivity Ω·cm ≥1×10¹⁴ GB/T 1410-2006
3 Dielectric constant ≥3.0 GB/T 1409-2006
4 Shore A hardness Spend ≥60 GB/T 531-2008
5 Mechanical properties GB/T 528-2008
6 —Tensive strength MPa ≥4.0
7 —Elongation at break % ≥200
8 —Tear strength KN/mm ≥12 GB/T 529-2008
9 —Elongation at low temperature (-15℃, 2h) % ≥20 GB/T 2951.4-1997
10 High temperature crack resistance (155℃, 2h) No cracks GB/T2951.6-1997

Open insulating tube

开口绝缘管电气性能.gif


Product Selection

1. Selection Table of Corresponding Aluminum Stranded Wire Models for Clip-on Silicone Tube Specifications

Selection table of corresponding aluminum stranded wire models for snap-fit ​​silicone tube specifications
Clip-on tube specifications Nominal cross-section (mm²) of LGJ type steel-cored aluminum stranded wire, LGJF type anti-corrosion steel-cored aluminum stranded wire, LGJJ type reinforced steel-cored aluminum stranded wire, and LGJQ type lightweight steel-cored aluminum stranded wire.
Φ12 10/2, 16/3, 25/4, 35/6
Φ15.6 50/8, 50/30
Φ17 70/10, 70/40, 95/15, 95/20
Φ20 95/55, 120/7, 120/20, 120/25, 120/70, 150/8, 150/20, 150/25, 150/35
Φ24.2 185/10, 185/25, 185/30, 185/45, 210/10, 210/25, 210/35, 210/50, 240/30, 240/40, 240/55, 240/60
Φ30 300/15, 300/20, 300/25, 300/40, 300/50, 300/70
Φ32 400/20, 400/25, 400/35, 400/50, 400/65, 400/95
Φ35 500/35, 500/45, 500/65
Φ39.8 600/70, 700/90, 800/55, 800/70, 800/100

Voltage rating and its thickness (mm)

≤10KV 10KV~27.5KV 27.5KV~35KV 35KV~110KV 110KV~220KV
2.3 3 3 4 6

2. Selection Table for Open Insulating Tubes

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