CATU CF-5-90 Insulating Stick with Protective Apron For Substation Earthing
Standards
EC 61235
An insulating stick, also called a hot stick or insulating rod, is an essential tool used in substations for earthing and for ensuring safety when working near live electrical equipment. In substations, these sticks allow operators to maintain a safe distance while working on or around energized components, especially when grounding or earthing conductors need to be applied to de-energize parts of the electrical system.
| SKU | Operating Voltage AC | Length (mm) | Tube Diameter (mm) | Fitting | Pack Size | Each Weight (g) | |
|---|---|---|---|---|---|---|---|
|
CF-5-90-C | 90 kV | 2000 | 36 | C | Each | 1420 |
|
CF-5-90-E | 90 kV | 2000 | 36 | E | Each | 1610 |
|
CF-5-90-K | 90 kV | 2000 | 36 | K | Each | 1300 |
Application:
- Standard stick for substation earthing and short-circuiting equipment.
- Outdoor use (under wet conditions) is permitted thanks to the presence of a protective skirt.
Features:
- Material: insulating tube made of epoxy resin, glass fiber reinforced.
- Insulating polycarbonate skirt Ø 100 mm, height 90 mm, shock-resistant.
Composition:
Here’s a breakdown of how they work and what to consider when using them for substation earthing:
1. Purpose of the Insulating Stick
- The insulating stick is used to establish a temporary earth or ground connection on substation equipment that is usually disconnected or isolated for maintenance.
- It protects personnel from accidental electrical discharge or unexpected energization of the equipment.
2. Construction and Material
- Insulating sticks are typically made from high-dielectric-strength materials, such as fiberglass or epoxy resin, which resist electrical conductivity.
- They are often layered with UV-resistant coating to withstand outdoor exposure and prevent degradation over time.
3. Components
- Grip Hook or Clamp: The end of the stick has a hook or clamp that securely attaches to the grounding cable.
- Length: They vary in length to provide adequate distance based on the voltage of the substation equipment.
- Telescoping Option: Some sticks are telescoping, allowing them to be extended or retracted as needed.
4. Using the Insulating Stick for Earthing
- Before using the stick, the operator must ensure the stick is rated for the voltage level present in the substation.
- The grounding cable connected to the stick is attached to a safe earthing point to discharge any residual or induced voltage in the equipment.
- The insulating stick allows the operator to attach or remove the grounding conductor while keeping a safe distance.
5. Safety Precautions
- Inspection: Before each use, inspect the stick for cracks, wear, or contamination that could compromise insulation.
- Dielectric Testing: Regular testing ensures that the insulating properties are maintained.
- Proper Handling and Storage: Store the sticks vertically in a dry area to prevent bending and avoid contact with conductive materials.
Insulating sticks are vital tools for safe maintenance in substations, ensuring that workers are protected from accidental electrical shocks. Proper training and adherence to safety protocols are essential for their effective use.
