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Porcelain insulators for overhead power lines 3,000 - 150,000 volts.
STANDARD published on 11.5.1922
Designation standards: BS 137:1922
Note: WITHDRAWN
Publication date standards: 11.5.1922
SKU: NS-59327
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS
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Latest update: 2026-08-25 (Number of items: 2 298 362)
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