DNV DNVGL-CP-0106 PDF

This CP gives a description of the procedures and requirements related to documentation, design and type testing applicable for TA of fastening devices of sacrificial anodes.

This CP does not set the design requirements for the fastening devices of sacrificial anodes. TA is based on compliance with design requirements given in [1.1]. The CP describes how to document compliance with the requirements in order to obtain a TA certificate for the equipment. This includes, where relevant, technical requirements for how the type tests shall be performed.

The Society's type approval certificate will normally cover one main type of anode design (grade), with the possibility of including variants, e.g. series with different dimensions and mass. Other arrangement may be agreed upon.

For anode fastening devices this means:

Grade: the anode and fastening device design

Variants: different dimensions and mass.

This type approval programme concerns primarily the safety aspect of fixing of sacrificial anodes to steel structures. Anodes shall not fall down and cause incendive sparking in gas hazardous area. Of secondary concern is that the anode shall not be lost and cause reduced protective effect.

The Society's type approval certificate is limited to one manufacturer at one production site unless otherwise agreed.

Type tests as specified in Sec.2 [3], shall be carried out and verified in one of the following ways:

at one of the Society's laboratories

at a recognised and independent laboratory or a laboratory accepted by the Society

at the manufacturer’s premises in the presence of a surveyor.