High-Voltage Insulated Tightener – Dielectric Protection up to 15kV | Non-Conductive Nylon Construction | For Live Line Maintenance
Introduction
The Insulated Tightener is a critical safety tool for electrical workers, designed to adjust, tension, and secure cables while providing full dielectric protection against accidental contact with live circuits. Made from non-conductive materials (fiberglass, nylon, or rubber), it ensures safe operation in high-voltage environments, substations, and telecom installations. Unlike metal tools, it eliminates the risk of electrical shock, making it indispensable for live line maintenance and emergency repairs.
Key Features
✅ Dielectric Protection – Rated for 1kV to 15kV+ (depending on model)
✅ Non-Conductive Materials – Fiberglass core, rubber-coated handles, or nylon construction
✅ Adjustable Tensioning – Ratchet, screw, or lever mechanisms for precise control
✅ Lightweight & Ergonomic – Reduces fatigue during prolonged use
✅ Tangle-Free Operation – Smooth swivel head or anti-slip jaws
Working Principle
The insulated tightener functions via:
Non-Conductive Core – Prevents current flow through the tool.
Tensioning Mechanism – Ratchet, screw, or cam-lock for controlled tightening.
Secure Grip – Rubberized handles or ergonomic contours enhance control.
This ensures:
✔ Safe live-line work without de-energizing circuits.
✔ Precise tension adjustment for cables, ropes, or conductors.
✔ Durability in harsh weather conditions.
Applications
Live Line Maintenance – Tensioning conductors without shutdowns.
Substation Work – Securing busbars and jumpers safely.
Telecom & Fiber Optics – Non-conductive cable management.
Emergency Repairs – Quick fixes on downed power lines.
Renewable Energy – Solar farm and wind turbine installations.
Explain:The Insulated tightener uses non-conductive FRP insulated handle and soft corrosion-resistant and high tension woven belt to replace the steel wire rope.It is used for wire tightening during live line operation, and the voltage resistance is 15kV (3 minutes).
Item No. | Model | Rated Lifting/Pulling | Webbing thickness*length(mm) | Min length(mm) | Max length(mm) | Weight(kg) |
14105 | SJJY-1 | 10/5 | 5*2300 | 410 | 1210 | 3.3 |
14106 | SJJY-1.5 | 15/7.5 | 6*2300 | 480 | 1400 | 4.2 |
14107 | SJJY-2 | 20/10 | 6*2300 | 480 | 1400 | 4.5 |