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Product

Linear Heat Detection (LHD) Sensor CablesEN 54-28 / UL 521AISI 304/316 SS BraidCrush & Rodent Resistant

SS-LDS Stainless-Steel-Protected Linear Heat Detection CableAISI 304/316 stainless-steel wire braided armoured digital linear heat detection cable

SS-LDS armours the digital linear heat detection sensor core (or PA12 nylon-jacketed core) with a high-coverage woven AISI 304 / AISI 316 stainless-steel wire braid. Designed for coal and ore conveyors, mining roadways, road/rail tunnels, steelworks and heavy

68–138 °C Calibrated

SS304/316 Wire Braid

Mining & Tunnel LHD

Alarm Temp & Armour

Order designation: SS-LDS-85 (85 °C + SS304 Braid)
Outer Ø ≈: 4.5 mm
Copper weight: 12 kg/km
Total weight ≈: 38 kg/km
Min. bend R: 72 mm

All sizes (12)

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Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Alarm ratings: 68 / 85 / 105 /
Armour braid: AISI 304 / 316 S
Sensing cores: 2 × spring steel
Loop resistance: ≈100 Ω/km
Ambient range: -40 to +105 °C
Min. bend radius: 75 mm (≈16×OD)

Typical values for this cable type, based on EN 54-28 / UL 521 — confirmed in the datasheet and quotation for your order.

Application fit

Is SS-LDS right for your machine?

Engineered for underground coal and hard-rock conveyors, port bulk-handling stacker/reclaimers, highway/metro tunnels, steel rolling mills and rodent-exposed cable trenches.

Mine roadway & tunnel wall hangers

Suitable

Stainless-steel braid resists falling ore, coal dust abrasion and mechanical pinching along belt conveyors.

TBM gantry & advancing tunnel reel

Suitable

Withstands high-pressure tunnel washing jets, rodent attack and vibration on tunnel ceiling brackets.

Fixed installation

Suitable

Clamped directly above conveyor idler rollers, transformer bunds and heavy cable ladders.

Motorised monospiral reel

Not suitable

Calibrated spring-steel thermal switch pair is designed for fixed installation only.

S07HXCHX-F screened flex

Typical machinesUnderground & surface mining conveyorsBulk port terminals & silosRoad, rail & utility tunnelsSteelworks & foundriesPower station coal bunkers

Construction

Layer by layer

Two twisted spring-steel sensing conductors + calibrated thermo-reactive polymer insulation + flame-retardant inner sheath + optional PA12 barrier + woven AISI 304/316 stainless-steel wire braid.

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Spring-steel sensing conductors	Two twisted high-tensile tinned copper-clad spring-steel wires held under radial spring forceEN 54-28
2	Calibrated thermo-reactive polymer	Temperature-sensitive polymer compound calibrated to yield at 68, 85, 105 or 138 °CEN 54-28
3	Flame-retardant inner jacket	Extruded PVC, LSZH or PA12 nylon environmental barrier sheathEN 54-28
4	Stainless-steel wire braid armour	Close-woven AISI 304 (or marine AISI 316) stainless-steel wire braid providing crush, impact, rodent and EMC protectionEN 54-28

SS-LDS (PVC/LSZH + AISI 304 Braid)

Standard stainless-steel braided LHD cable for conveyors, tunnels, car parks and industrial cable trays.

SS-LDNS (PA12 Nylon + AISI 316 Braid)

Combines a chemical/UV-resistant PA12 nylon jacket with marine-grade AISI 316 stainless-steel braid for offshore and petrochemical zones.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on EN 54-28 / UL 521. Values for your order are confirmed in the datasheet and quotation.

Electrical

Max. operating voltage: 42 VDC / 30 VAC
Nominal DC resistance: ≈100 Ω/km per conductor (200 Ω/km loop)
Braid earthing: Stainless-steel outer braid must be earthed at one end to drain induced EMI

Thermal

Alarm temperature classes: 68 °C · 78 °C · 85 °C · 105 °C · 138 °C
Max. continuous ambient temp.: 45 °C (68 °C) · 65 °C (85 °C) · 85 °C (105 °C) · 105 °C (138 °C)
Min. operating temp.: -40 °C

Mechanical

Nominal outer diameter: 4.6 mm ± 0.2 mm (4.9 mm on PA12+SS)
Min. installation bend radius: 75 mm
Crush & cut-through resistance: >1500 N radial crush resistance without false trip

Resistance

Rodent & abrasion resistance: Woven AISI 304/316 stainless-steel wire armour
Corrosion resistance: Salt-mist, acid-mine water & industrial washdown resistant
Flame retardancy: IEC 60332-1-2

Reference standards

Detection standard: EN 54-28 & UL 521
Intrinsic safety compatibility: Simple apparatus per IEC 60079-11 with Ex ia barrier

Identification

Outer appearance: Bright woven stainless-steel braid over colour-coded inner sheath
Tagging: Stamped stainless-steel or colour-coded marker sleeves at 5 m intervals

Sizes

12 standard configurations (SS-LDS)

Nominal dimensions, masses and electrical ratings for SS-LDS according to EN 54-28 / UL 521.

Dimensions & masses
Designation	Alarm Temp & Armour	Core Ø mm	Outer Ø ≈ mm	Copper kg/km	Total weight ≈ kg/km	Min. bend R fixed mm
SS-LDS standard series
SS-LDS-68 (68 °C + SS304 Braid)	68 °C SS304 (Amb ≤45 °C)	2×0.85 mm	4.5	12	38	72
SS-LDS-78 (78 °C + SS304 Braid)	78 °C SS304 (Amb ≤55 °C)	2×0.85 mm	4.5	12	38	72
SS-LDS-85 (85 °C + SS304 Braid)	85 °C SS304 (Amb ≤65 °C)	2×0.85 mm	4.5	12	38	72
SS-LDS-95 (95 °C + SS304 Braid)	95 °C SS304 (Amb ≤70 °C)	2×0.85 mm	4.5	12	38	72
SS-LDS-105 (105 °C + SS304 Braid)	105 °C SS304 (Amb ≤85 °C)	2×0.85 mm	4.6	12	39	74
SS-LDS-138 (138 °C + SS304 Braid)	138 °C SS304 (Amb ≤105 °C)	2×0.85 mm	4.7	12	41	75
SS-LDNS-68 (68 °C PA12 + SS316)	68 °C PA12+SS316	2×0.85 mm	4.9	12	44	78
SS-LDNS-85 (85 °C PA12 + SS316)	85 °C PA12+SS316	2×0.85 mm	4.9	12	44	78
SS-LDNS-105 (105 °C PA12 + SS316)	105 °C PA12+SS316	2×0.85 mm	5.0	12	45	80
SS-LDNS-138 (138 °C PA12 + SS316)	138 °C PA12+SS316	2×0.85 mm	5.1	12	47	82
SS-LDS-85-LSZH (85 °C LSZH + SS304)	85 °C LSZH+SS304	2×0.85 mm	4.6	12	40	74
SS-LDS-105-LSZH (105 °C LSZH + SS304)	105 °C LSZH+SS304	2×0.85 mm	4.7	12	41	75

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Nominal outer diameters and weights are subject to manufacturing tolerances per EN 54-28 / UL 521.

Electrical data
Alarm Temp & Armour	Max. DC R @ 20 °C Ω/km	Current in air A	Current in duct/tray A
68 °C SS304 (Amb ≤45 °C)	98.000	1	1
78 °C SS304 (Amb ≤55 °C)	98.000	1	1
85 °C SS304 (Amb ≤65 °C)	98.000	1	1
95 °C SS304 (Amb ≤70 °C)	98.000	1	1
105 °C SS304 (Amb ≤85 °C)	98.000	1	1
138 °C SS304 (Amb ≤105 °C)	98.000	1	1
68 °C PA12+SS316	98.000	1	1
85 °C PA12+SS316	98.000	1	1
105 °C PA12+SS316	98.000	1	1
138 °C PA12+SS316	98.000	1	1
85 °C LSZH+SS304	98.000	1	1
105 °C LSZH+SS304	98.000	1	1

Current ratings apply at +30 °C ambient in free air and +25 °C in enclosed tray/conduit.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
500 VAC core-to-core & core-to-braid dielectric test	Zero fault between sensing cores and stainless braid	100 % of reels
Sample tests
Radial crush & thermal activation bath test	No false trip under mechanical load; trips accurately at rated °C	Every batch
EN 54-28 thermal response & salt-spray corrosion test	Braid and inner sheath pass ISO 9227 neutral salt spray	Type qualification

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

EN 54-28 CompliantUL 521 DesignIEC 60079-11 Simple ApparatusISO 9227 Salt-Spray Tested

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX SS-LDS-85 STAINLESS STEEL BRAIDED LHD CABLE 85C AISI 304 EN 54-28

Delivery form: Fumigated export wooden drums or shrink-wrapped coils
Standard drum lengths: 500 m · 1000 m standard drums (cut lengths on request)
MOQ: 100 m (stock sizes) · 300–500 m (production)
Lead time: 2–4 weeks ex-works
Incoterms: EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFSS-LDS Stainless-Steel-Protected Linear Heat Detection Cable – technical datasheet12 sizes · construction, technical data, approvals XLSXSS-LDS spec data (Excel)All 12 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-20
Updated: 2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

Why is stainless-steel wire braid armour needed on conveyor and tunnel LHD installations?

Along belt conveyors and underground roadways, spilled rock, tool impacts, vibration against steel brackets or rodent biting can pinch unarmoured LHD insulation and cause a false short-circuit alarm. The woven AISI 304/316 stainless-steel wire braid absorbs mechanical impact while conducting heat rapidly to the inner core.

How must the stainless-steel braid be terminated inside junction boxes?

When stripping SS-LDS at an end-of-line or splice junction box, trim back and sleeve the stainless-steel braid so no stray steel filaments can touch the two spring-steel sensing terminals, and earth the braid at the controller end only.

Does the metallic braid improve thermal conductivity or slow down alarm response?

Because AISI 304/316 stainless steel has much higher thermal conductivity than polymer jacketing and forms a thin woven mesh, heat transfers rapidly into the inner jacket, keeping activation time well within EN 54-28 limits.

When should SS-LDNS (PA12 nylon + AISI 316 braid) be chosen over standard SS-LDS?

Select SS-LDNS when the installation faces both mechanical impact and corrosive chemical or marine exposure—such as offshore oil platforms, sulphur/potash conveyors, refinery pipe racks and coastal coal-loading piers.

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03Message for our engineers

SS-LDS Stainless-Steel-Protected Linear Heat Detection Cable

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Reel & motion:
- Reel type: 
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- Travel speed (m/min): 
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Datasheet Request a quote

SS-LDS Stainless-Steel-Protected Linear Heat Detection CableAISI 304/316 stainless-steel wire braided armoured digital linear heat detection cable

Mine roadway & tunnel wall hangers

TBM gantry & advancing tunnel reel

Fixed installation

Motorised monospiral reel

SS-LDS (PVC/LSZH + AISI 304 Braid)

SS-LDNS (PA12 Nylon + AISI 316 Braid)

Electrical

Thermal

Mechanical

Resistance

Reference standards

Identification

Inspection certificate

Product approvals

Company certificates

01Selected sizes

02Reel & motion

03Message for our engineers

SS-LD Digital LHD

SS-LDN Nylon LHD

Securiton SEC 15 / SEC 20

BS 7846 SWA F2/F120