Ceramic Rod SL
Solid porcelain rods with metal fittings at both ends, used as tension members on overhead lines and for busbar support in substations.
- Rated voltage
- 10 and 15 kV
- Tensile load
- 20–40 kN
- Creepage
- 260–360 mm
- Weight
- 4.0–5.2 kg
A ceramic rod is one solid porcelain body with a fitting cemented into each end. It works in tension only, so it is used where a suspension string would swing: guyed poles, wind-loaded sections, and busbar support inside a substation.
With no cap-and-pin joint there is no internal air space to puncture, and no shed to collect water between two metal parts. Five types are made, at 10 kV and 15 kV, with tensile ratings from 20 kN to 40 kN.
Reading the Type Code
The type reads as body variant, voltage and tensile load:
- XS / XSC / SL
- Ceramic rod insulator; XSC is supplied without iron fittings
- 10 / 15
- Rated voltage, kV
- 20 / 30 / 40
- Tensile load, kN
Specifications
Values published for each type.
| Type | Rated voltagekV | Tensile loadkN | Creepagemm | Lightning impulse withstandkV | Dry power-frequency withstandkV | Wet power-frequency withstandkV | Weightkg |
|---|---|---|---|---|---|---|---|
| XS-10/30 | 10 | 30 | 260 | 105 | 75 | 45 | 5.2 |
| XS-10/20 | 10 | 20 | 360 | 105 | 75 | 45 | 4.8 |
| XSC-10/20 | 10 | 20 | 310 | 105 | 75 | 45 | 4.5 |
| SL-15/30 | 15 | 30 | 260 | 105 | 75 | 45 | 4 |
| SL-15/40 | 15 | 40 | 260 | 105 | 75 | 45 | 4 |
XS types are supplied with iron fittings at both ends; XSC is the all-porcelain body with none. The tensile figure is the rated load, not a proof test value.
Choosing a Type
Rod or String
A rod takes tension and nothing else. Where the fitting must also articulate — line strings on a tower — a cap-and-pin string is the right part.
Fitting Count
XS carries iron fittings at both ends. XSC is the bare porcelain body for customers who cement their own.
Every rod is tensile-tested before it is packed, and each type is type-tested before it is offered for supply.
Ask about Ceramic Rod SL
Send the type designation, the quantity and the standard the project is working to. We reply with a price and a delivery date.
We usually reply within one working day.