BS IEC IEEE 61886-1-2021 pdf free 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).
5.4.2Rapid gas decompression
Connector assemblies or parts of connector assemblies that will be in contact with productionfluids shall be tested for rapid gas decompression.Allowable operational changes in pressuresand tolerance to rapid gas decompression(RGD) shall be documented where applicable.Tolerance to RGD shall be stated in the data sheet.
5.4.3External forces
Rotational forces, vibrations, tensions, compressions shall not impair the function or quality ofthe connector assembly, throughout design ‘service life.
A retaining mechanism for securing sheaths, screens and armour shall be incorporated in theconnector assembly design, in order to verify mechanical and electrical suitability.
The connector assembly shall have an impact protection rating, lK10,according to lEC 62262.5.5 Material requirements
5.5.1 General material requirements
The connector assemblies shall meet the following requirements.
a) The connector assembly shall comprise proven materials and components，which are
qualified and suitable for relevant equipment，applications and environments，and thedesign life.The connector assembly shall be compatible throughout design service life withthe relevant interfacing medium and materials as defined in the operational requirementsspecification.
b) Seal materials shall be compatible with all applicable interfacing materials and media, evenif one seal should fail.
c) All polymeric materials shall be compatible with the service environment.
d)The connector assembly shall be designed to be cathodically protected or made of a sea
water resistant material. Due consideration shall be given to chosen materials and systemdesign; to ensure correct material protection in order to reduce the possibility of corrosion,calcareous build-up and hydrogen embrittlement.
e) A materials selection report including type test reports shall be prepared and presented to
the purchaser, before construction of connector assemblies for type testing.
Consequence of potential migration or ingress of conductive media into the connector assemblyshall be considered during the design phase,also considering densities of internal fluidcompared with the external conductive media (and where conductive media may accumulate).
5.5.2Material certification requirements
All connector and penetrator assemblies shall have traceable manufacturing records to allowidentification and subsequent rectification of defects after delivery.Manufacturing records andtest results shall be traceable to each assembly by a unique identifier (e.g. product serialnumber).Traceability of components from a common batch is permitted.
For well pressure retaining equipment, the traceability requirements for individual componentsused in the assembly shall be according to the latest edition of APl Spec 6A for the requiredPSL level of the component in question.Where the component PSL level requires traceabilityto a specific heat treatment lot, a unique means of identification of the component to the heatrun shall be provided.
The composition of all metallic components used for process (well) containment shall be verifiedby PMl according to the manufacturer’s procedure. The PMl shall be performed as late aspossible in the assembly process and the result documented.
Certificates of conformity for metallic components shall be supplied with the product accordingto Type 3.1 of EN 10204. Records shall be retained by the manufacturer for a minimum of10 years.
5.6Connector specific requirements5.6.1 General requirements
The following requirements shall apply to all types of connectors.
a) Efforts shall be made to maximize the duration which a connector half can remain unmated
in the operational environment.Minimum product requirement is 28 days over the lifetime,with a minimum of 7 consecutive days.
b) Physical contact between electrical contacts of opposing connector assembly halves during
primary engagement of the connector assembly shall not be possible. This is to preventdamage due to exposure to primary alignment forces.
Connector assemblies shall be designed:
c) to be capable of vertical, tilted and horizontal operation inclusive of mating and de-mating.or as specified in the datasheet,
d) with a robust locking mechanism, to prevent accidental or vibration-induced de-mating or
malfunction, and
e) to have a housing and latch mechanism tolerant to silt and fine sand deposits.BS IEC IEEE 61886-1 pdf download.