Provide Direct Grounding Where High Induced Voltage is Experienced


  • Aluminum alloy or ductile iron rollers
  • Block grounds are available for most S+R blocks
  • Equipped with grounding studs
  • Arm and rollers can be rotated to facilitate stringing in either direction


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Provides direct grounding to the conductor or pulling line via an aluminum or steel sheave to maintain voltage drain for safer working conditions. This sheave applies constant contact against the conductor via spring-action from underneath the wire which prevents the block from “yawing”. Block grounds are available for 72, 74 and 78 Series Transmission Blocks.