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FREMCO A/S
ELLEHAMMERVEJ 14
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DK9900 FREDERIKSHAVN, DENMARK
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VAT NO.: DK30815416
TEL45 7230 1213
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WWW.FREMCO.DK
2. Perform a pressure test
Perform a pressure test by blocking the duct at the opposite end and applying max.
10 bar of air pressure. Check for pressure loss. The duct should be able to hold the
pressure for a minimum of 5 minutes.
9.3.
INITIATING FIBER BLOWING
1. Lubricating the duct
1. Apply one sponge at the desired depth (See guideline on FlowLUB).
2. Add desired amout of FlowLUB
3. Apply one more sponge (creating three layers with sponges and lubrication)
4. Add air pressure pushing sponges and FlowLUB all the way through to the end
2. Remember the airflow principle
Start the fiber blowing installation according to the airflow principle
A)
Start feeding the cable into duct without applying air.
B) Check with your hand that you can hold/stop the cable at all times.
This should make the wheel/chain spin while the cable is not moving.
C) Apply the air in ¼ amounts as the speed is decrease. Reduce speed in all cases of
obstacles during full airflow.