I N N O V A T I O N A N D F L E X I B I L I T Y
T H E
I N S T A L L A T I O N A N D M A I N T E N A N C E T R A I N I N G M A N U A L
3 Outdoor Installation
3.2 Loose Protected Microduct (LPM)
Using four standard duct sizes, and usually 10mm or 12mm m/d, in any reasonable combination: eg:
3.3 Different ways to create a fi bre route:
a) A PVC duct carrying other sub-ducts in turn carrying large fibre cables (eg FEEDER networks)
b) Buried PE duct, used to carry either a fibre cable, or a DI bundle. The DI bundle is lightweight and flexible, and relies on the PE duct for its main
protection.
c) Buried PE duct with loose protected m/d (LPM) inside. The advantage is that almost any combination of m/d numbers and sizes can be
accommodated, as above.
d) A simple method to bury bundles of m/d for FU blowing or mini-cable blowing: The DB bundle.
Emtelle provide all these solutions, but the SIZE of the optical element usually determines the carrier duct or micro-duct: Eg:
For heavy fibre cable, eg 300 fibres, install them directly into a buried PE duct
For mini-cables, between 24f and 96f, blow these into 10mm or 12mm bundles in either LPM or TPM versions.
“This document is intended as a guide only. Whilst the information it contains is believed to be correct, Emtelle can take no responsibility for actions taken based on the information contained in this document. Emtelle reserves the
right to make changes to this document without notice. All sales of product are subject to Emtelle’s terms and conditions of sale only, which can be found on Emtelle’s website.”
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