Standard covering type BN-OF
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Forge-welded gratings | Pressure-locked gratings | GRP-gratings | Chequer plates | Spiral staircases Stairtreads | Ladder rungs | Steel Service | Galvanizing Fire-retarding covering Standard covering type BN-OF

Viewing platform with pressure-locked gratings Fountain covering with coated gratings High-bay warehouse with perforated metal planks Lichtgitter – Everything from one source A bright outlook since 1929 Lichtgitter was established in 1929 in order to carry out the specialized manufacturing of gratings. By the continuous monitoring of our performance, and quality systems, together with innovation in manufacturing techniques, we have ensured Lichtgitter’s place in the forefront of manufacturers of industrial floor coverings. Besides the production of pressurelocked gratings, forge-welded...

Loose elements before final assembly Connected elements Lichtgitter Transformer coverings Environment protection – Up to date and safe Energy suppliers are using oil for the cooling of aggregates in transformer units. Normally pans which have to collect the oil are installed beneath the aggregates. The pan should avoid that in case of an accident oil could reach the ground and could pollute the groundwater. There is always a danger that a fire could arise due to the relatively low flashpoint of the oil and the high operating temperature. Bearing this background on mind it is more and more...

Inspection opening open Inspection opening closed Fire retarding covering type BN-OF The economic alternative against conventional coverings The fire-retarding covering BN-OF was developed as an alternative to the conventional coverings. The basis is the well-known perforated metal plank type BN-O, which Lichtgitter is producing and distributing for quite some years. The advanced type BN-OF is especially suitable as a covering for the oil collecting pans beneath the transformer units. In case of fire the flames are restrained by the limited air permeability, but not stifled. The capability...

Transformer covering type BN-OF Inspection opening Use at transformers with drainage Further test have shown that the BN-OF elements can even be used in transformers with drainage under the pre-condition that the distance between the aggregate and the drainage of the pit will be at least 1,5 m. Is the distance smaller then 1,5 m it is necessary to install a safety device according to DIN EN 12874 to avoid that the flames can break through. Protection against corrosion The BN-OF elements are galvanized according to DIN EN ISO 1461 and offer therefore a sufficient protection against...

Perforated metal planks type BN-OF Material Surface Sheet thickness Structural module R Production lengths L Widths B Heights H Benting tu1 Benting tu2 The elements are edged at one underside outwards so that a support area of approx. 20 mm is reached. Both front sides are closed. 2,5 mm 125 mm if possible n x R 150, 200, 250, 300 mm 40, 50, 75, 100 mm approx. 10 mm approx. 20 mm Production possibilities on the demands of the clients Fire-retarding covering type BN-OF 3D sketch – Fire-retarding covering type BN-OF

Transformer covering BN-OF Off-shore Transformer station Lichtgitter fire-retarding coverings haven proven effectually for many years their availability for the use for transformer stations even in the offshore sector. Besides the usual Lichtgitter quality, the lower assembly and disassembly times as well as the advantages of our own galvanizing plants, we are especially focusing on the demands of our clients. Custom-made production and other special requirements like cutouts are certainly possible.

Loadtable BN-OF Key to symbols Fv = Load value at uniformly distributed load in kN/m² f = Deflection in cm at load Fv Fp = Single load in kN on an area of 200 x 200 mm f1 = Deflection in cm at load Fp The mentioned values are characteristically. Type BN-OF Galvanized weight in kg/m² Load/ Deflection

Load limit: According to German instruction Elastic deflection (in loaded state) not >1/200 of the span but max. 4 mm at a moving single load of 1,5 kN on an area of 200 x 200 mm. Under the precondition of a distributed payload of 5 kN/m² the max. deflection at this load limit is 4 mm.

Range of products Lichtgitter – Product overview All from one source Everything from one source Lichtgitter-Service all-round carefree package Your All-Inclusive-Package Please have a look at our complete product range regarding industrial floor coverings We offer you competent, product and project linked advices with a high level of technical know-how. We support you from the beginning to the end of the project realization, i.e. from the planning to the delivery of the goods. On request we also do the overmeasure on site. For our clients positive and reliable measurement on site. For our...