Offshore Platform Cable Glands
Offshore platforms, such as oil and gas refineries, can be dangerous environments, with the presence of extreme temperatures, moving parts, direct sunlight and UV, and potentially explosive materials.
Platforms contain many cables and wires that require adequate protection to ensure long-term performance in the face of potentially damaging factors such as harsh environmental conditions.
Cable glands provide protection in various ways, including:
- Sealing the inner and outer cable sheaths
- Fire and flame-proofing the cables
- Water-proofing the cables
- Preventing electrical fires or sparks
- Protecting from chemicals, UV, dust and other external contaminants
- Protecting from vermin, termites, and other animals
It’s of utmost importance that all cables and wires are sufficiently protected, preventing unexpected downtimes due to premature failure, equipment damage, fires, and explosions. Sufficient protection can lead to increased staff and machinery safety, lower repair and maintenance costs, reduced likelihood of operation disruptions, and as an overall benefit; increased profitability.
Requirements for Cable Glands in Offshore Platforms
Offshore platform cable glands must withstand tough conditions and specifications, due to being in an extreme marine environment. These requirements range from:
- Corrosion resistance – due to being in a high water-exposure environment
- Water and humidity resistance – to prevent water damage or ingress
- UV resistance – to prevent damage from direct sunlight
- Wide service temperature range – to be resistant to extreme temperatures found in offshore platforms around the world
- Fire and flame-proof – preventing chances of sparks or fire
The solutions used to lubricate and protect the cable glands must provide all of these features to ensure the full protection of the cables.
Offshore Platform Cable Gland Protection & Lubrication
Lubricants and electronic protection solutions provide various advantages when it comes to offshore platform cable gland protection. In addition to matching the requirements listed above, they also improve the durability of components, keep key parts clean from contaminants, reduce weight compared to traditional solutions and manage stresses exerted onto the equipment.
Molykote 111 is a lubricant and sealant ideal for outdoor equipment subjected to an aggressive environment. It is compatible with plastics and elastomers, provides excellent water washout properties for outdoor environments, and operates within a wide service temperature range. Our technical experts have successfully used this product for the lubrication of cable glands within offshore platforms.
Araldite CW 1312/Aradur HY 1300 is an optimally filled casting system that can be used to protect electrical devices in potentially explosive environments. It provides low water absorption, great thermal endurance and flammability UL94 V-0 rating.
Araldite CW 2250-1/Aradur HY 2251 is an optimally filled casting and impregnation system that is suitable for devices exposed to thermal shock and vibration. It provides high thermal conductivity, dielectric properties and flammability UL94 V-0 rating.
Dowsil 3145 / Dow Corning 3145 RTV is a silicone adhesive sealant that can be used for sealing in and around wired and electrical leads. It provides high-temperature stability and high tensile strength and elongation. Due to silicones‘ diverse characteristics that protect against moisture, chemicals and other potential environments, Dowsil silicones are a primary option for top manufacturing, maintenance and repair teams working in marine environments.
SYLGARD 182 is a silicone elastomer that can be used for electronic assembly protection. It provides good dielectric properties, high transparency and UL 94 V-1 flammability rating.
For more reading, see how Molykote lubricants have effectively been used in managing vibrational loads, reducing thread failure, lubricating bearings, avoiding microwelding of pipes, and sealing industrial furnaces; proving their reliable performance in extremely challenging environments.