Reference boundary

Bend-radius reference only. It does not set a universal rule, replace cable manufacturer instructions, or approve field bends.

Reference table

Compare common cable-family bend-radius multipliers for preliminary routing conversations.

Reference basis summarizes common manufacturer multiplier patterns for preliminary layout checks.
Cable familyReference multiplierExample at 20 mm OD (mm)Boundary
Armoured cable6x cable OD120Planning reference only; cable markings and manufacturer instructions govern bends
Portable/flexible cable6x cable OD120Planning reference only; cable markings and manufacturer instructions govern bends
Large power cable8x to 12x cable OD160 to 240Planning reference only; cable markings and manufacturer instructions govern bends
Manufacturer-specific cableUse product dataproduct dataPlanning reference only; cable markings and manufacturer instructions govern bends
Use notes
  • Use this table for preliminary reference and arithmetic checks only.
  • Confirm equipment ratings, product markings, installation conditions, utility requirements, and the local authority requirements before design or field use.