- Details
- Written by: Keith Norgate
- Category: Cables and Conduit
- Hits: 557
Following testing of the cables it was noticed that some of the cables were not halogen free.
This could be due to the fact that SANS 10139 does not specify low smoke, halogen free and manufacturers have taken the gap to reduce costs.
- Details
- Written by: Keith Norgate
- Category: Cables and Conduit
- Hits: 636
The FDIA were becoming increasingly concerned with the amount of different fire-resistant cables appearing on the market and decided to conduct tests on these cables.
Tests were conducted in line with the required standard EN 50200 to primarily determine if these cables can withstand temperatures of 840o for 30 minutes.
- Details
- Written by: Keith Norgate
- Category: Cables and Conduit
- Hits: 715
The National Standard is very clear regarding cable support:
“Cables which are directly fixed to surfaces should be neatly run and securely fixed at suitable intervals”.
- Details
- Written by: Keith Norgate
- Category: Cables and Conduit
- Hits: 672
Some contractors cannot get passed the habit of securing cables with plastic cable ties.
PH 30 cables are installed providing 30 minutes resistance to fire and then secure it with plastic cable ties that in a fire condition will allow the cable to fall to the floor pulling out terminations in the detector and acting as a safety hazard to persons fleeing from the property.