RCDD · Question #26
Assuming the total fill capacity of a pathway is 100 cables (all of the same cable type and size), the MAXIMUM number of cables to be installed during the initial installation, without exceeding the…
The correct answer is B. 40. BICSI pathway fill standards limit initial cable installation to 40% of total capacity to preserve space for future cabling additions.
Question
Assuming the total fill capacity of a pathway is 100 cables (all of the same cable type and size), the MAXIMUM number of cables to be installed during the initial installation, without exceeding the fill ratio is:
Options
- A25
- B40
- C50
- D60
How the community answered
(42 responses)- A2% (1)
- B79% (33)
- C7% (3)
- D12% (5)
Why each option
BICSI pathway fill standards limit initial cable installation to 40% of total capacity to preserve space for future cabling additions.
25% is overly conservative and does not correspond to the BICSI-recommended 40% initial fill ratio.
BICSI TDMM specifies a 40% initial fill ratio for pathways, meaning only 40 of 100 available cable positions should be used during the first installation. This practice ensures adequate space remains for future cable pulls without exceeding recommended fill density, which can cause heat buildup and installation difficulty.
50% exceeds the recommended 40% initial fill ratio and would not leave adequate space for future cable additions per BICSI guidelines.
60% significantly exceeds the 40% initial fill guideline and would leave insufficient pathway capacity for future growth.
Concept tested: Pathway fill ratio for initial cable installation
Source: https://www.bicsi.org/standards/tdmm
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