Composite insulators
EGU – HV Laboratory a.s. has been performing testing of composite insulators since 90th. Our laboratory can offer together with other cooperating accredited laboratories a full range of design and type testing of composite insulators.
Testing facility:
- Composite insulators: tension / suspension, line post, station post, hollow core, railway, hybrid
Tests:
- Electrical and mechanical design and type testing
- Thermal-mechanical testing:
tension - 250 kN / 2 400 m
post - 50 kN / 1850 mm - Mechanical testing:
tension - 600 kN / 5 000 m
post - 20 kN / 900 mm
Housing material testing:
- salt fog, tracking wheel testing including leakage currents monitoring
- Housing material testing: fl ammability, UV, X-ray SEM / EDX – in cooperation with other external accredited labs.
Special mechanical testing:
- cantilever, torsion, compression and special mechanical testing in cooperation with an external accredited testing lab in Prague
Standards:
- IEC, EN, ANSI, AS, CAN
Activities at IEC and CIGRE:
- IEC TC 36/SC36C/PT
- IEC TC36/MT15
- CIGRE C4.3.03
- Cigre D1.44 / CIGRE D1.45