Installation Instruction
20201210/ML/01
Nestor Optimus DB Reducers
Page 2 of 6
©
Nestor Cables Ltd. 2020.
10.12.2020
The information contained within this document must not be copied, reprinted or reproduced in any form, either wholly or in part, without the
prior written consent of Nestor Cables Ltd. The information is believed to be correct at the time of issue. Nestor Cables Ltd. reserves the right
to amend this specification without notice. This specification is not contractually valid unless specifically authorized by Nestor Cables Ltd.
Application
Reduction connectors for DB (Direct Buried) microducts. Suitable for direct buried installation or
installation in protective pipes or cable shafts.
Installation Instruction
We recommend the installer to read and follow all the instructions, precautions and warnings
contained in this document before using the products in pressurized systems. Unfollowing all
instructions, precautions and warnings may result in injuries or property damage. Nestor Cables Ltd.
disclaims any responsibility in the case of damage caused by product misusing or incorrect
installation.
Preparations
•
Prepare the microducts and duct bundles so that there is enough duct overlap at the
connection point. In principle, all microducts must overlap by at least 60 cm.
•
When using duct bundles, the connectors should be staggered so that the connectors are
not in the same position. For example, a duct bundle with 12 microducts must overlap more
than 60 cm to have enough space for staggered connectors.
•
To avoid any possible problem during the cable blowing process, the connectors must be
installed in straight sections of the microduct route.
•
Never install connectors to a curved section of a microduct with a tight bend radius.
•
Before installation work, check microducts compatibility to the connectors by checking the
external diameters of the microducts and push-in system sizes of the connector.
•
When coupling two microducts together, it is recommended that the microducts inner
diameters are same in both sides of the reduction connector. If it is not possible to use
microducts with same inner diameters in both sides of the connector, the cable blowing
direction should be from smaller inner diameter to bigger inner diameter.
•
The duct end must be round, and it must be cut to 90° angle by using the correct duct cutter.
Never use saw, pliers or knife.
•
When necessary, deburr and break off sharp edges of the microduct end before inserting it
into the connector using the correct tool.
