IEC／IEEE 61886-1:2021 pdf download – Subsea equipment – Part 1: Power connectors, penetrators and jumper assemblies with rated voltage from 3 kV (U max = 3,6 kV) to 30 kV (U max = 36 kV).
3.1.1 5 pressure integrity seal sealing element of a penetrator assembly that prevents leakage between the two sides of the wall/partition to which the penetrator is mounted 3.1.1 6 primary pressure integrity seal pressure integrity seal closest to the side with the highest rated absolute pressure (RAP) Note 1 to entry: If only one value for RAP is specified (pressure balanced conditions), the primary pressure integrity seal is the seal closest to the side with the most aggressive/conductive medium. Note 2 to entry: This definition applies to penetrators only. 3.1.1 7 rapid gas decompression extreme depressurisation event from high pressure (hundreds of bar) to low pressure (tens of bars down to atmospheric) in order of seconds Note 1 to entry: Rapid gas decompression can occur in a production system when in presence of gas. The phenomenon is also known as “explosive decompression”. 3.1.1 8 rated absolute pressure maximum absolute pressure that a connector assembly has been designed to operate at under the specified conditions of use Note 1 to entry: For connector assemblies that are designed to operate under pressure balanced conditions, only one value of rated absolute pressure shall be specified. For penetrators that are designed to operate with different pressures on either side of a wall or partition, two values of rated absolute pressure shall be specified. RAP-1 shall be used to refer to the maximum rated absolute pressure on the external or outboard side of the partition and RAP-2 shall be used to refer to the maximum rated absolute pressure on the internal or inboard side of the partition. Note 2 to entry: The rated absolute pressure shall not be confused with the maximum test pressure to which the assembly shall be subjected in order to qualify it for service.
3.1.1 9 rated differential pressure maximum differential pressure that a connector assembly has been designed to operate at under the specified conditions of use Note 1 to entry: For connectors and penetrators that are designed to operate under pressure balanced conditions, only one value of rated differential pressure shall be specified and shall be the same in both directions. For penetrators that are designed to operate with different pressures on either side of a wall or partition, the two values RAP-1 and RAP-2 shall be the rated differential pressure in each direction Note 2 to entry: The rated differential pressure value shall be used to describe the differential pressure rating of the connector assembly and it should not be confused with the maximum differential test pressure to which the assembly shall be subjected in order to qualify it for service. 3.1.20 rated current I r maximum RMS value of current which the connector assembly can carry continuously at rated frequency and at maximum ambient temperature, as given by the temperature class Note 1 to entry: For connector assemblies operating at other environmental conditions, the rated current and corresponding operational ambient conditions shall be clearly specified in the data sheet. For penetrators and bulkhead mounted connectors, rated current may be given by operational conditions in the tank/housing to which it is mounted; these conditions shall be clearly specified in the data sheet.
3.1.23 routine test tests performed by the manufacturer on each connector assembly to verify that the specified requirements are met 3.1.24 sample test tests performed by the manufacturer on samples of connector assemblies or components taken from a connector assembly, at a specified sampling frequency, so as to verify that the finished product meets the specified requirements 3.1 .25 secondary pressure integrity seal pressure integrity seal closest to the side with the lowest rated absolute pressure (RAP) Note 1 to entry: If only one value for RAP is specified (pressure balanced conditions), the secondary pressure integrity seal is the seal closest to the side with the less aggressive/conductive medium. Note 2 to entry: This definition applies to penetrators only. 3.1.26 shell continuity electrical connection between two metallic connector housings when connected together 3.1.27 special test test other than a routine, sample or type test, agreed between manufacturer and purchaser 3.1.28 subsea protection cap device connected to a connector half for protection when unmated subsea Note 1 to entry: The subsea protection cap provides mechanical protection and prevents marine growth on critical/sealing surfaces.