The city of Ratingen, represented by Amt 25 "Gebäudemanagement", is improving safety-relevant facilities and fundamentally renovating the municipal theatre at Europaring 9 in 40878 Ratingen. Furthermore, the gymnasium, which is housed in the same building complex, will be fundamentally renovated and will receive an extension to house the new foyer with vestibule.

Lightning protection and earthing system (KG 446)

grounding

Construction of an earthing system according to DIN EN 62305-3 (VDE 0185-305-3) and DIN 18014 as foundation earth for the new foyer. By means of an insulated floor slab or floor slab with a white tub, a second earth level is erected conductively in the ground (so-called functional or ringed earthing). Grounding fixed point at two points, design in foundations in strip steel, 30x3.5mm, galvanized, outside foundations in the ground in V4A as strip steel 30x3.5mm or round material Rd10. Railings and other conductive components of the building construction are integrated into the protective equipotential bonding.

The periodic inspection revealed deteriorating readings on parts of the separation points. As a result, strip earth sections are inserted around the gymnasium, with a connection to the existing earth system.

Lightning protection

Creation of a complete external lightning protection, consisting of a safety device (on the roof) in aluminum wrought alloy Rd8 and deflector device in Rd10, visible on the exposed aggregate concrete façade. Within the foyer façade, the arresters are designed to be insulated. Design according to the lightning protection ball method; Classification of the building in the lightning protection class (BSK) III according to

VdS 2010. Both parts of the building will be equipped with a photovoltaic system, which must be included in the protected area of the safety gear.

The internal lightning protection (surge protection) is advertised in the LV Elektro and is not part of this tender.