Isolateur bobine is the French, the means that spool insulators in English. The Spool insulators are manufactured, tested and designed in accordance with ANSI C29.1 and C29.3 standards.
The drawing of Isolateur bobine/spool insulators
The technical parameters of Isolateur bobine/spool insulators
Identification | Catalog number | 53-1 | 53-1SP | 53-2 |
NBR 6249 class | R900-1 | R900-1 | R1350-2 | |
ANSI C29.3 class | 53-1 | 53-1 | 53-2 | |
Electrical | Estimation / rating voltage, KV | 1.2 | 1.2 | 1.2 |
Low-frequency wet withstand horiz. , KV | 9 | 9 | 13.5 | |
Low-frequency wet withstand vert., KV | 7 | 7 | 10 | |
Low-frequency dry withstand, KV | 18.5 | 18.5 | 22 | |
Low-frequency dry flashover, KV | 20 | 20 | 25 | |
Low-frequency wet flashover horiz. , KV | 10 | 10 | 15 | |
Low-frequency wet flashover vert. , KV | 8 | 8 | 12 | |
Mechanical | Minimum cantilever strength, daN | 900 | 900 | 1350 |
Dimension | Leakage (creepage) distance, mm | 48 | 48 | 71 |
Insulator diameter - D, mm | 57 | 57 | 80 | |
Total height – H, mm | 54 | 54 | 76.2 | |
Neck diameter – A, mm | 38 | 38 | 45 | |
Hole diameter – B, mm | 17.5 | 14.3 | 17.5 | |
Side groove radius R1 | 11 | 11 | 18 | |
Packing | Weight (lbs/ea) | 0.44 | 0.55 | 1.12 |
Units per package (un.) | 100 | 48 | 24 |
Isolateur bobine, spool insulators are one of LV insulators used in distribution systems, such as electrical poles or family lines to support and insulate.
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