Suspension or tension (dead-end) composite insulators			Back to index
Specification inEnglish Español Français Portuguese			ANSI electrical standard (USA, Canada ...) IEC electrical standard (Europe ...) Both ANSI & IEC electrical standards (Latin America ...)
feet meters Max altitude above the sea level			max 52 kV max 72.5 kV max 100 kV max 127 kV max 145 kV max 170 kV max 245 kV max 330 kV max 420 kV max 550 kV Highest system voltage
ANSI - 15,000 Lbs IEC - 70 kN ANSI - 20,000 Lbs IEC - 100 kN ANSI - 25,000 Lbs IEC - 120 kN ANSI - 30,000 Lbs IEC - 160 kN ANSI - 40,000 Lbs IEC - 210 kN ANSI - 50,000 Lbs IEC - 300 kN IEC - 320 kN Specified Mechanical Load (SML)			End-fittings twisted 90 degres
Convex side (usually the tower)			Concave side of the sheds (usually near the conductor)
yoke socket oval eye clevis tongue ball Metallic end-fitting			ball oval eye tongue yoke socket clevis Metallic end-fitting
ring only if needed 1 ring imperative			ring only if needed 1 ring imperative
Length mm Inches Arcing distance			Leakage distance (US) = creepage dist. (GB)
ANSI flashover			IEC withstand
power frequency, wet			power frequency, wet 1 min
power frequency, dry			power frequency, dry 1 min
lightning impulse test voltage, (lowest absolute value)			lightning impulse test voltage
B.I.L. (ANSI impulse withstand)			switching impulse, wet

instructions to operate the program.
limits of the program.
guaranty on the results.
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