That distinction matters. A vehicle tether is primarily engineered for excursion, manoeuvrability and repeated movement. It must transmit the required services while limiting the drag, weight, stiffness and mechanical disturbance imposed on the ROV. It should not be treated as a lifting cable unless the assembly has been expressly designed and qualified for that duty.<\/p>\n
Fibron designs and manufactures bespoke ROV tether cables around the requirements of the complete system. Our engineers develop the conductor configuration, optical package, strength members, lay geometry, fillers and outer jacket as one coordinated construction. This supports new ROV developments, upgrades, replacement requirements and specialist vehicles for which an off-the-shelf tether is unsuitable.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00bbfull_width_content\u00bb full_screen_row_position=\u00bbmiddle\u00bb column_margin=\u00bbdefault\u00bb equal_height=\u00bbyes\u00bb content_placement=\u00bbmiddle\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb bg_color=\u00bb#f2f2f2\" scene_position=\u00bbcenter\u00bb top_padding=\u00bb4%\u00bb bottom_padding=\u00bb4%\u00bb left_padding_desktop=\u00bb10%\u00bb right_padding_desktop=\u00bb10%\u00bb top_padding_tablet=\u00bb8%\u00bb bottom_padding_tablet=\u00bb8%\u00bb text_color=\u00bbdark\u00bb text_align=\u00bbleft\u00bb row_border_radius=\u00bbnone\u00bb row_border_radius_applies=\u00bbbg\u00bb row_position_desktop=\u00bbdefault\u00bb row_position_tablet=\u00bbinherit\u00bb row_position_phone=\u00bbinherit\u00bb overflow=\u00bbvisible\u00bb overlay_strength=\u00bb0.3\" gradient_direction=\u00bbleft_to_right\u00bb shape_divider_position=\u00bbbottom\u00bb bg_image_animation=\u00bbnone\u00bb][vc_column column_padding=\u00bbpadding-4-percent\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bbright\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][vc_custom_heading text=\u00bbElectrical, optical and mechanical functions in one cable\u00bb font_container=\u00bbtag:h2|text_align:left|color:%23353535\" use_theme_fonts=\u00bbyes\u00bb css=\u00bb\u00bb][vc_column_text]Depending on the vehicle and payload, an ROV tether can incorporate:<\/p>\n
These functions cannot be designed independently. Conductor area influences voltage drop, current capacity and diameter. The number and arrangement of optical fibres affect space, bend performance and termination design. Strength-member selection influences breaking load, axial stiffness, weight and flexibility. Component lay and jacket construction affect how the tether bends, twists and behaves on a reel or within a TMS.<\/p>\n
The aim is not simply to fit every service into the smallest possible diameter. It is to produce a balanced cable that remains practical to manufacture, terminate, deploy and operate throughout its intended duty cycle. Fibron\u2019s wider composite<\/strong><\/a> and electro-optical cable<\/strong><\/a> capabilities allow electrical, optical and mechanical requirements to be considered together rather than as separate subsystems.<\/p>\n[\/vc_column_text][\/vc_column][vc_column column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][image_with_animation image_url=\u00bb13109\" image_size=\u00bbfull\u00bb max_width=\u00bb100%\u00bb max_width_mobile=\u00bbdefault\u00bb animation_type=\u00bbentrance\u00bb animation=\u00bbNone\u00bb animation_movement_type=\u00bbtransform_y\u00bb hover_animation=\u00bbnone\u00bb alignment=\u00bb\u00bb border_radius=\u00bbnone\u00bb box_shadow=\u00bbnone\u00bb image_loading=\u00bbdefault\u00bb][\/vc_column][\/vc_row][vc_row type=\u00bbfull_width_content\u00bb full_screen_row_position=\u00bbmiddle\u00bb column_margin=\u00bbdefault\u00bb equal_height=\u00bbyes\u00bb content_placement=\u00bbmiddle\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb bg_color=\u00bb#ffffff\u00bb scene_position=\u00bbcenter\u00bb top_padding=\u00bb4%\u00bb bottom_padding=\u00bb4%\u00bb left_padding_desktop=\u00bb10%\u00bb right_padding_desktop=\u00bb10%\u00bb top_padding_tablet=\u00bb8%\u00bb bottom_padding_tablet=\u00bb8%\u00bb text_color=\u00bbdark\u00bb text_align=\u00bbleft\u00bb row_border_radius=\u00bbnone\u00bb row_border_radius_applies=\u00bbbg\u00bb row_position_desktop=\u00bbdefault\u00bb row_position_tablet=\u00bbinherit\u00bb row_position_phone=\u00bbinherit\u00bb overflow=\u00bbvisible\u00bb overlay_strength=\u00bb0.3\" gradient_direction=\u00bbleft_to_right\u00bb shape_divider_position=\u00bbbottom\u00bb bg_image_animation=\u00bbnone\u00bb][vc_column column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][image_with_animation image_url=\u00bb13145\" image_size=\u00bbfull\u00bb max_width=\u00bb100%\u00bb max_width_mobile=\u00bbdefault\u00bb animation_type=\u00bbentrance\u00bb animation=\u00bbNone\u00bb animation_movement_type=\u00bbtransform_y\u00bb hover_animation=\u00bbnone\u00bb alignment=\u00bb\u00bb border_radius=\u00bbnone\u00bb box_shadow=\u00bbnone\u00bb image_loading=\u00bbdefault\u00bb][\/vc_column][vc_column column_padding=\u00bbpadding-4-percent\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bbleft\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][vc_custom_heading text=\u00bbControlling diameter, drag and buoyancy\u00bb font_container=\u00bbtag:h2|text_align:left|color:%23353535\" use_theme_fonts=\u00bbyes\u00bb][vc_column_text]Tether behaviour in the water can directly affect ROV performance. A larger outside diameter creates more area for current to act upon. Excessive submerged weight can reduce mobility, promote seabed contact and transfer unwanted load to the vehicle. Too much positive buoyancy can also create an unsuitable tether shape or complicate management.<\/p>\n Fibron therefore designs to defined targets for diameter, weight in water and buoyancy rather than treating neutral buoyancy as a universal requirement. Neutral or positive buoyancy can be developed where needed, but the construction must also satisfy requirements for tensile strength, flexibility, operating depth, abrasion resistance and handling.<\/p>\n Fibron can process Vectran\u2122 and other high-performance synthetic fibres together with specialist polymeric materials. This gives our engineers scope to adjust the balance between strength, mass, flexibility and outside diameter around the vehicle, depth, current environment, excursion length and deployment method.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00bbfull_width_content\u00bb full_screen_row_position=\u00bbmiddle\u00bb column_margin=\u00bbdefault\u00bb equal_height=\u00bbyes\u00bb content_placement=\u00bbmiddle\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb bg_color=\u00bb#f2f2f2\" scene_position=\u00bbcenter\u00bb top_padding=\u00bb4%\u00bb bottom_padding=\u00bb4%\u00bb left_padding_desktop=\u00bb10%\u00bb right_padding_desktop=\u00bb10%\u00bb top_padding_tablet=\u00bb8%\u00bb bottom_padding_tablet=\u00bb8%\u00bb text_color=\u00bbdark\u00bb text_align=\u00bbleft\u00bb row_border_radius=\u00bbnone\u00bb row_border_radius_applies=\u00bbbg\u00bb row_position_desktop=\u00bbdefault\u00bb row_position_tablet=\u00bbinherit\u00bb row_position_phone=\u00bbinherit\u00bb overflow=\u00bbvisible\u00bb overlay_strength=\u00bb0.3\" gradient_direction=\u00bbleft_to_right\u00bb shape_divider_position=\u00bbbottom\u00bb bg_image_animation=\u00bbnone\u00bb][vc_column column_padding=\u00bbpadding-4-percent\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bbright\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][vc_custom_heading text=\u00bbDynamic performance and tether management\u00bb font_container=\u00bbtag:h2|text_align:left|color:%23353535\" use_theme_fonts=\u00bbyes\u00bb][vc_column_text]ROV tethers can experience cyclic bending, fluctuating tension, reeling, twisting, local compression and repeated deployment and recovery. Damage may concentrate at connectors, terminations, clamping points and bend-transition zones.<\/p>\n The tether should therefore be considered alongside the equipment that controls it. Fibron can review minimum bend radius, reel and sheave geometry, TMS routing, termination envelopes, expected line loads and operating cycles. Lay configuration, strength-member arrangement and jacket selection can then be developed for the required flexibility and mechanical stability.<\/p>\n The optimum balance varies by ROV class. A compact observation or inspection vehicle may place a premium on low drag, low weight and manual handling. A larger or work-class vehicle may require more power, additional fibres, greater tensile capacity and compatibility with a powered TMS. Specialist survey, research, defence<\/strong><\/a> or intervention systems may add further requirements for payload communications, depth or environmental resistance. Fibron supplies cables and umbilicals across observation, inspection, medium and work-class ROV applications<\/strong><\/a>.<\/p>\n[\/vc_column_text][\/vc_column][vc_column column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][image_with_animation image_url=\u00bb13133\" image_size=\u00bbfull\u00bb max_width=\u00bb100%\u00bb max_width_mobile=\u00bbdefault\u00bb animation_type=\u00bbentrance\u00bb animation=\u00bbNone\u00bb animation_movement_type=\u00bbtransform_y\u00bb hover_animation=\u00bbnone\u00bb alignment=\u00bb\u00bb border_radius=\u00bbnone\u00bb box_shadow=\u00bbnone\u00bb image_loading=\u00bbdefault\u00bb][\/vc_column][\/vc_row][vc_row type=\u00bbfull_width_content\u00bb full_screen_row_position=\u00bbmiddle\u00bb column_margin=\u00bbdefault\u00bb equal_height=\u00bbyes\u00bb content_placement=\u00bbmiddle\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb bg_color=\u00bb#ffffff\u00bb scene_position=\u00bbcenter\u00bb top_padding=\u00bb4%\u00bb bottom_padding=\u00bb4%\u00bb left_padding_desktop=\u00bb10%\u00bb right_padding_desktop=\u00bb10%\u00bb top_padding_tablet=\u00bb8%\u00bb bottom_padding_tablet=\u00bb8%\u00bb text_color=\u00bbdark\u00bb text_align=\u00bbleft\u00bb row_border_radius=\u00bbnone\u00bb row_border_radius_applies=\u00bbbg\u00bb row_position_desktop=\u00bbdefault\u00bb row_position_tablet=\u00bbinherit\u00bb row_position_phone=\u00bbinherit\u00bb overflow=\u00bbvisible\u00bb overlay_strength=\u00bb0.3\" gradient_direction=\u00bbleft_to_right\u00bb shape_divider_position=\u00bbbottom\u00bb bg_image_animation=\u00bbnone\u00bb][vc_column column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][image_with_animation image_url=\u00bb13127\" image_size=\u00bbfull\u00bb max_width=\u00bb100%\u00bb max_width_mobile=\u00bbdefault\u00bb animation_type=\u00bbentrance\u00bb animation=\u00bbNone\u00bb animation_movement_type=\u00bbtransform_y\u00bb hover_animation=\u00bbnone\u00bb alignment=\u00bb\u00bb border_radius=\u00bbnone\u00bb box_shadow=\u00bbnone\u00bb image_loading=\u00bbdefault\u00bb][\/vc_column][vc_column column_padding=\u00bbpadding-4-percent\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bbleft\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][vc_custom_heading text=\u00bbInformation needed to specify an ROV tether\u00bb font_container=\u00bbtag:h2|text_align:left|color:%23353535\" use_theme_fonts=\u00bbyes\u00bb][vc_column_text]Early technical engagement helps prevent the cable becoming an interface problem late in an ROV programme. A useful specification will normally define:<\/p>\n Where every value is not yet known, Fibron can work with the customer\u2019s engineering team to identify the governing parameters and establish a practical design basis. Considering the cable alongside connectors, mechanical terminations, deployment equipment and other interfaces at an early stage can prevent one part of the system constraining another.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00bbfull_width_content\u00bb full_screen_row_position=\u00bbmiddle\u00bb column_margin=\u00bbdefault\u00bb equal_height=\u00bbyes\u00bb content_placement=\u00bbmiddle\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb bg_color=\u00bb#f2f2f2\" scene_position=\u00bbcenter\u00bb top_padding=\u00bb4%\u00bb bottom_padding=\u00bb4%\u00bb left_padding_desktop=\u00bb10%\u00bb right_padding_desktop=\u00bb10%\u00bb top_padding_tablet=\u00bb8%\u00bb bottom_padding_tablet=\u00bb8%\u00bb text_color=\u00bbdark\u00bb text_align=\u00bbleft\u00bb row_border_radius=\u00bbnone\u00bb row_border_radius_applies=\u00bbbg\u00bb row_position_desktop=\u00bbdefault\u00bb row_position_tablet=\u00bbinherit\u00bb row_position_phone=\u00bbinherit\u00bb overflow=\u00bbvisible\u00bb overlay_strength=\u00bb0.3\" gradient_direction=\u00bbleft_to_right\u00bb shape_divider_position=\u00bbbottom\u00bb bg_image_animation=\u00bbnone\u00bb][vc_column column_padding=\u00bbpadding-4-percent\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bbright\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][vc_custom_heading text=\u00bbPrototypes, replacements and production manufacture\u00bb font_container=\u00bbtag:h2|text_align:left|color:%23353535\" use_theme_fonts=\u00bbyes\u00bb css=\u00bb\u00bb][vc_column_text]Tether development often proceeds in parallel with the ROV, telemetry package, topside equipment and TMS. Fibron can manufacture prototypes and short qualification lengths so that electrical, optical and mechanical assumptions can be tested before the production design is frozen. Results can feed directly into conductor sizing, component layout, strength-member design, jacket selection and termination details.<\/p>\n For an existing vehicle, available interface data, operational history, reel or TMS constraints and the revised service schedule can be reviewed together. This allows a replacement or upgraded tether to be engineered for the system in which it will operate, rather than selected solely by matching an outside diameter or conductor count. Fibron\u2019s wider ROV capability<\/strong><\/a> includes replacement cable and umbilical systems as well as products for new vehicles.<\/p>\n Once agreed, the design moves into controlled manufacture at Fibron\u2019s UK facility, with cable engineering, production, testing and project coordination remaining closely connected. Fibron has designed and manufactured specialist cables and umbilicals in the UK since 1986.<\/p>\n[\/vc_column_text][\/vc_column][vc_column column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][image_with_animation image_url=\u00bb13121\" image_size=\u00bbfull\u00bb max_width=\u00bb100%\u00bb max_width_mobile=\u00bbdefault\u00bb animation_type=\u00bbentrance\u00bb animation=\u00bbNone\u00bb animation_movement_type=\u00bbtransform_y\u00bb hover_animation=\u00bbnone\u00bb alignment=\u00bb\u00bb border_radius=\u00bbnone\u00bb box_shadow=\u00bbnone\u00bb image_loading=\u00bbdefault\u00bb][\/vc_column][\/vc_row][vc_row type=\u00bbfull_width_content\u00bb full_screen_row_position=\u00bbmiddle\u00bb column_margin=\u00bbdefault\u00bb equal_height=\u00bbyes\u00bb content_placement=\u00bbmiddle\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb bg_color=\u00bb#ffffff\u00bb scene_position=\u00bbcenter\u00bb top_padding=\u00bb4%\u00bb bottom_padding=\u00bb4%\u00bb 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phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][image_with_animation image_url=\u00bb13115\" image_size=\u00bbfull\u00bb max_width=\u00bb100%\u00bb max_width_mobile=\u00bbdefault\u00bb animation_type=\u00bbentrance\u00bb animation=\u00bbNone\u00bb animation_movement_type=\u00bbtransform_y\u00bb hover_animation=\u00bbnone\u00bb alignment=\u00bb\u00bb border_radius=\u00bbnone\u00bb box_shadow=\u00bbnone\u00bb image_loading=\u00bbdefault\u00bb][\/vc_column][vc_column column_padding=\u00bbpadding-4-percent\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bbleft\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][vc_custom_heading text=\u00bbTesting, qualification and complete assemblies\u00bb font_container=\u00bbtag:h2|text_align:left|color:%23353535\" use_theme_fonts=\u00bbyes\u00bb][vc_column_text]The test programme should reflect the risks and duty of the particular tether. Depending on the construction, Fibron can undertake electrical verification, optical continuity or attenuation measurement, tensile or break-load testing, cyclic bend or bend-over-sheave testing, crush and clamp assessment, bend-stiffness measurement and torque or rotation evaluation. Testing may be performed on samples, prototype lengths or the completed terminated assembly, with independent testing coordinated where required.<\/p>\n For development programmes, qualification is part of the engineering process rather than simply a final pass-or-fail exercise. The results can be used to refine the design and demonstrate that the manufactured tether meets its specified electrical, optical and mechanical requirements.<\/p>\n Fibron can also coordinate the cable with mechanical terminations, electrical and optical connectors, bend protection and associated interface hardware. Treating these elements as one assembly helps manage load transfer, bend control, sealing, connector alignment and installation space while giving the customer a single engineering partner for the cable and its interfaces.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00bbfull_width_content\u00bb full_screen_row_position=\u00bbmiddle\u00bb column_margin=\u00bbdefault\u00bb equal_height=\u00bbyes\u00bb content_placement=\u00bbmiddle\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb bg_color=\u00bb#f2f2f2\" scene_position=\u00bbcenter\u00bb top_padding=\u00bb4%\u00bb bottom_padding=\u00bb4%\u00bb left_padding_desktop=\u00bb10%\u00bb right_padding_desktop=\u00bb10%\u00bb top_padding_tablet=\u00bb8%\u00bb bottom_padding_tablet=\u00bb8%\u00bb text_color=\u00bbdark\u00bb text_align=\u00bbleft\u00bb row_border_radius=\u00bbnone\u00bb row_border_radius_applies=\u00bbbg\u00bb row_position_desktop=\u00bbdefault\u00bb row_position_tablet=\u00bbinherit\u00bb row_position_phone=\u00bbinherit\u00bb overflow=\u00bbvisible\u00bb overlay_strength=\u00bb0.3\" gradient_direction=\u00bbleft_to_right\u00bb shape_divider_position=\u00bbbottom\u00bb bg_image_animation=\u00bbnone\u00bb][vc_column column_padding=\u00bbpadding-4-percent\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bbright\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][vc_custom_heading text=\u00bbA specialist ROV cable-system partner\u00bb font_container=\u00bbtag:h2|text_align:left|color:%23353535\" use_theme_fonts=\u00bbyes\u00bb css=\u00bb\u00bb][vc_column_text]Fibron\u2019s experience spans ROVs<\/strong><\/a>, deep-ocean research, defence<\/strong><\/a>, offshore energy and other applications in which electrical, optical and mechanical performance must be maintained in harsh environments. For tether projects, that experience is combined with flexible manufacturing, in-house materials processing, prototype support, testing and termination engineering.<\/p>\n This makes Fibron more than a supplier of an individual length of cable. We can support the development of the tether as part of the wider ROV system\u2014from the initial service schedule and mechanical design basis to prototype manufacture, qualification, terminations and the final production assembly.<\/p>\n[\/vc_column_text][\/vc_column][vc_column column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/2\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][image_with_animation image_url=\u00bb13139\" image_size=\u00bbfull\u00bb max_width=\u00bb100%\u00bb max_width_mobile=\u00bbdefault\u00bb animation_type=\u00bbentrance\u00bb animation=\u00bbNone\u00bb animation_movement_type=\u00bbtransform_y\u00bb hover_animation=\u00bbnone\u00bb alignment=\u00bb\u00bb border_radius=\u00bbnone\u00bb box_shadow=\u00bbnone\u00bb image_loading=\u00bbdefault\u00bb][\/vc_column][\/vc_row][vc_row type=\u00bbfull_width_content\u00bb full_screen_row_position=\u00bbmiddle\u00bb column_margin=\u00bbdefault\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb bg_color=\u00bb#ffffff\u00bb scene_position=\u00bbcenter\u00bb top_padding=\u00bb4%\u00bb bottom_padding=\u00bb4%\u00bb left_padding_desktop=\u00bb10%\u00bb right_padding_desktop=\u00bb10%\u00bb text_color=\u00bbdark\u00bb text_align=\u00bbleft\u00bb row_border_radius=\u00bbnone\u00bb row_border_radius_applies=\u00bbbg\u00bb row_position_desktop=\u00bbdefault\u00bb row_position_tablet=\u00bbinherit\u00bb row_position_phone=\u00bbinherit\u00bb overflow=\u00bbvisible\u00bb overlay_strength=\u00bb0.3\" gradient_direction=\u00bbleft_to_right\u00bb shape_divider_position=\u00bbbottom\u00bb bg_image_animation=\u00bbnone\u00bb][vc_column column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/1\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][vc_custom_heading text=\u00bbROV tether cable FAQs\u00bb font_container=\u00bbtag:h2|text_align:center|color:%23353535\" use_theme_fonts=\u00bbyes\u00bb][toggles style=\u00bbdefault\u00bb border_radius=\u00bbnone\u00bb][toggle color=\u00bbDefault\u00bb heading_tag=\u00bbdefault\u00bb heading_tag_functionality=\u00bbdefault\u00bb title=\u00bbWhat is the difference between low drag and neutral buoyancy?\u00bb][vc_column_text]Neutral buoyancy describes a tether\u2019s net weight in water. Low drag is influenced mainly by outside diameter, current speed and the length exposed to flow. A neutrally buoyant tether can still create significant drag, so both properties need to be addressed.<\/p>\n[\/vc_column_text][\/toggle][toggle color=\u00bbDefault\u00bb heading_tag=\u00bbdefault\u00bb heading_tag_functionality=\u00bbdefault\u00bb title=\u00bbHow is the correct ROV tether length determined?\u00bb][vc_column_text]Tether length is not always the same as operating depth. It depends on whether the vehicle is free-swimming or TMS-deployed, the required excursion, routing through the handling system and allowances for terminations and maintenance. Excess length can add drag and handling complexity; insufficient length restricts the operating envelope.<\/p>\n[\/vc_column_text][\/toggle][toggle color=\u00bbDefault\u00bb heading_tag=\u00bbdefault\u00bb heading_tag_functionality=\u00bbdefault\u00bb title=\u00bbWhat causes fatigue in an ROV tether cable?\u00bb][vc_column_text]Fatigue can result from repeated bending, tension cycling, torsion, crushing, local over-bending or stress concentration near a termination. The dominant mechanisms depend on the cable and handling system, which is why duty-cycle information and representative mechanical testing are important.<\/p>\n[\/vc_column_text][\/toggle][\/toggles][\/vc_column][\/vc_row][vc_row type=\u00bbfull_width_background\u00bb full_screen_row_position=\u00bbmiddle\u00bb column_margin=\u00bbdefault\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb bg_color=\u00bb#f2f2f2\" scene_position=\u00bbcenter\u00bb top_padding=\u00bb3%\u00bb bottom_padding=\u00bb3%\u00bb text_color=\u00bbdark\u00bb text_align=\u00bbleft\u00bb row_border_radius=\u00bbnone\u00bb row_border_radius_applies=\u00bbbg\u00bb row_position_desktop=\u00bbdefault\u00bb row_position_tablet=\u00bbinherit\u00bb row_position_phone=\u00bbinherit\u00bb overflow=\u00bbvisible\u00bb overlay_strength=\u00bb0.3\" gradient_direction=\u00bbleft_to_right\u00bb shape_divider_position=\u00bbbottom\u00bb bg_image_animation=\u00bbnone\u00bb][vc_column column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb centered_text=\u00bbtrue\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb column_position=\u00bbdefault\u00bb gradient_direction=\u00bbleft_to_right\u00bb overlay_strength=\u00bb0.3\" width=\u00bb1\/1\" tablet_width_inherit=\u00bbdefault\u00bb animation_type=\u00bbdefault\u00bb bg_image_animation=\u00bbnone\u00bb border_type=\u00bbsimple\u00bb column_border_width=\u00bbnone\u00bb column_border_style=\u00bbsolid\u00bb][nectar_highlighted_text text_color=\u00bb#000000\" scribble_color=\u00bb#ef7f3c\u00bb style=\u00bbscribble\u00bb scribble_shape=\u00bbbasic-underline\u00bb scribble_thickness=\u00bbregular\u00bb scribble_speed=\u00bb1.8s\u00bb scribble_easing=\u00bbease_in_out\u00bb]\n If you need an ROV tether cable and cannot immediately see the exact construction you require, please get in touch. Most Fibron products are bespoke to individual projects, so the full extent of our capability cannot be shown online. Our engineering team can help develop a tether around the required vehicle, voltage, communications, buoyancy, strength, length and handling requirements.<\/p>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=\u00bbdefault\u00bb column_direction=\u00bbdefault\u00bb column_direction_tablet=\u00bbdefault\u00bb column_direction_phone=\u00bbdefault\u00bb text_align=\u00bbleft\u00bb row_position=\u00bbdefault\u00bb row_position_tablet=\u00bbinherit\u00bb row_position_phone=\u00bbinherit\u00bb overflow=\u00bbvisible\u00bb pointer_events=\u00bball\u00bb][vc_column_inner column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb centered_text=\u00bbtrue\u00bb desktop_text_alignment=\u00bbdefault\u00bb 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size=\u00bbjumbo\u00bb button_style=\u00bbregular\u00bb button_color_2=\u00bbAccent-Color\u00bb color_override=\u00bb#ff8b00\" icon_family=\u00bbnone\u00bb text=\u00bbPhone Us\u00bb url=\u00bbtel:01992471444\"][\/vc_column_inner][vc_column_inner column_padding=\u00bbno-extra-padding\u00bb column_padding_tablet=\u00bbinherit\u00bb column_padding_phone=\u00bbinherit\u00bb column_padding_position=\u00bball\u00bb flex_gap_desktop=\u00bb10px\u00bb column_element_direction_desktop=\u00bbdefault\u00bb column_element_spacing=\u00bbdefault\u00bb centered_text=\u00bbtrue\u00bb desktop_text_alignment=\u00bbdefault\u00bb tablet_text_alignment=\u00bbdefault\u00bb phone_text_alignment=\u00bbdefault\u00bb background_color_opacity=\u00bb1\" background_hover_color_opacity=\u00bb1\" column_backdrop_filter=\u00bbnone\u00bb column_shadow=\u00bbnone\u00bb column_border_radius=\u00bbnone\u00bb column_link_target=\u00bb_self\u00bb overflow=\u00bbvisible\u00bb gradient_direction=\u00bbleft_to_right\u00bb 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