Cable fireproof coating is generally composed of tertary propylene emulsion water-based materials adding various fireproof flame retardants, plasticizers, etc., and the coating can generate a uniform and dense sponge-like foam insulation layer when it is fired, which can effectively inhibit and block the spread and spread of flames, and protect wires and cables. It is mainly used for the flame retardant treatment of wires and cables in power plants, industrial and mining, telecommunications and civil buildings, and can also be used for the fire protection of objects such as combustible substrates such as wood structures and metal structure buildings.
1 Basis for inspection.
GB 28374-2012 "Fire retardant coatings for cables".
2 Number of samples.
The number of type test samples is 2 barrels, 25kg per barrel. The number of samples for supervision and inspection is 2 barrels, each barrel is 25kg. The number of samples for change confirmation inspection is determined according to the actual inspection items.
3 Inspection items.
3.1. The type test items are: GB28374-2012 "Cable Fire Retardant Coatings" 5 Table 1 of the applicable items except 1.
3.2. The supervision and inspection items are: bending resistance and flame retardancy.
3.3. The change confirmation inspection items shall be carried out according to the change confirmation plan.
4 Inspection cycle.
The type test inspection cycle is 60 days, the supervision and inspection cycle is 50 days, and the change confirmation inspection and inspection cycle is determined according to the actual inspection items, and the type test inspection cycle cannot be exceeded.