Cable trays encased with calcium silicate insulating panels with calcium silicate sleepers to hold cables away from bottom of the cable tray.Īnyway it is no mention of cable tray in sand filled trench. The use of cable tray systems designed to protect the cables from fire.Ĭ. If routed through the fire area, it should be protected with fireproofing material in accordance with API Publication 2218, Fireproofing Practices in Petroleum and Petrochemical Processing.Ħ.1.8.1 Electrical Power and Instrument CableĪ.
Cable tray systems include ladders, troughs, channels, solid bottom trays, and other similar structures.
NFPA 850/2010 Recommended Practice for Fire Protection for Electric Generating Plants and High Voltage Direct Current Converter Stations:ġ3.5.2.4.2 Electrical power, control, and instrument cabling required for safe shutdown of critical equipment during emergency plant shutdown should be routed outside the fire area. According to OSHA 1910.399, a cable tray system is a unit or assembly of units or sections and associated fittings forming a rigid structural system used to securely fasten or support cables and raceways. The support system will depend on the type of installation, whether it will be suspended in the concrete slab, or install on a wall or install them on a floor. Cable Containment shall be installed surfaced-run in the concrete slab / wall according to construction co-ordination drawings.
