Showing posts with label elevator control cable supplier. Show all posts
Showing posts with label elevator control cable supplier. Show all posts

Monday, January 6, 2014

Halogen Free Elevator Cables



When it comes to elevator safety, cable fire performance is just as important as mechanical durability. In the event of a fire, standard PVC cables can release dense black smoke and toxic halogen gases (like hydrogen chloride), which obstruct evacuation and harm passengers.

The 05Z1Z1H6-F Halogen Free Elevator Cable is specifically designed to solve this problem. This post explains what these cables are, why they matter.


What Are HFFR and FRNC?

Both terms refer to cables with superior fire safety properties:

TermFull FormMeaning
HFFRHalogen Free Flame RetardantNo halogens (chlorine, fluorine, bromine, iodine) in the material; flame propagation is limited
FRNCFlame Retardant Non CorrosiveSimilar to HFFR – during a fire, gases emitted are non-corrosive and low in toxicity

These cables use special polyolefin compounds instead of PVC. When exposed to fire, they produce:

  • Very low smoke – Improves visibility for evacuation

  • No halogen acids – Protects equipment from corrosion

  • Low toxicity – Reduces health risks for passengers and firefighters


Why Use Halogen Free Low Smoke Cables in Elevators?

Elevator shafts are vertical chimneys. In a fire, smoke and toxic gases rise rapidly, filling the shaft and spreading to other floors. Standard PVC cables can make this deadly.

FeatureBenefit
Low smoke emissionEvacuation routes remain visible
Halogen freeNo corrosive gases – protects elevator electronics and building infrastructure
FRNC ratingMeets strict fire safety standards (EN 50267, EN 61034, IEC 60754)
Self-extinguishingPrevents fire spreading along the cable

These cables are mandatory or highly recommended in:

  • Hospitals, schools, airports, train stations

  • High-rise residential and commercial buildings

  • Underground installations and tunnels

  • Any building with strict fire codes (e.g., EU CPR, BS 7629-1)


Identifying HFFR/FRNC Elevator Cables

Below are the typical visual characteristics of a Halogen Free Low Smoke HFFR / FRNC Elevator Cable.

Halogen Free Elevator Cables
Halogen Free Elevator Cable

05Z1Z1D3H6-F Halogen Free Lift Cables
Halogen Free Elevator Cable with 2x Steel Wire Support




1. Overall Cable Appearance

  • Color: Usually white, gray, or orange (not the dark gray/black of PVC cables)

  • Flat profile (for traveling cables) or round (for static sections)

  • Smooth, matte finish – unlike glossy PVC 

2. Cable Marking

Look for printing on the sheath:

  • HFFR

  • FRNC

  • LSZH (Low Smoke Zero Halogen – similar standard)

  • IEC 60754-1/2 (corrosivity test)

  • EN 61034 (smoke density test)

3. Cross-Section (Internal Construction)

If you cut the cable:

  • No halogen smell when burned with a lighter (test carefully)

  • Sheath and insulation are stiffer than PVC but remain flexible

  • Often white or natural color insulation on wires

4. Burning Behavior 

When exposed to a flame and removed:

  • Self-extinguishes within a few seconds

  • Very little smoke – clear or light gray smoke, not thick black

  • No dripping of burning material


Technical Specifications (Typical)

ParameterValue
Cable typeFlat elevator traveling cable (or static)
Halogen statusHalogen free (Cl, F, Br, I < 0.1% by weight)
Smoke density (EN 61034)Light transmittance ≥ 60% (typical)
Corrosivity (IEC 60754-2)pH ≥ 4.3; conductivity ≤ 10 µS/mm
Flame retardancyEN 60332-1-2 (vertical flame test)
Temperature range-15°C to +70°C (dynamic)
ApplicationsControl, power, data, coaxial, CAT6 in elevator shafts

Common Types Available in HFFR/FRNC

Many elevator cable types can be manufactured with halogen free low smoke compounds:

  • H05V3V3H6-F (halogen free version) – Flat flexible control cable

  • H05V3V3H6-F + TV HF 75 – With coaxial for video

  • Elevator CAT6 / LAN cable (LSZH version) – For data networks

  • Composite traveling cables – Power + control + data + fiber optic


Installation Tips for Halogen Free Cables

HFFR/FRNC cables are slightly less flexible than PVC cables at low temperatures. Follow these tips:

  1. Use proper flat cable hangers – Ensure smooth edges to avoid abrasion on the soft sheath.

  2. Minimum bending radius – Typically 8× cable thickness (more than PVC).

  3. Avoid sharp cable ties – Use rounded, non-snagging supports.

  4. Do not pull over sharp edges – HFFR sheaths can be more susceptible to cutting damage.

  5. Label clearly – Mark that the cable is halogen free for future maintenance.

Final Verdict

The Halogen Free Elevator Cable is the safest choice for modern buildings where human life and equipment protection are priorities. While slightly more expensive than PVC, the fire safety benefits are undeniable – reduced smoke, no toxic halogens, and non-corrosive fumes.

Need a specific halogen free cable for your elevator project? Contact a MKS KABLO NOW!

Wednesday, December 18, 2013

H05VVH6-F 24X0,75 Elevator Traveling Cables


Every lift in service has one cable that never gets to sit still. While the fixed wiring in the shaft is clipped down and forgotten about, the elevator travelling cable hangs in a loop between the car and the controller and flexes for every single trip — hundreds of times a day, for fifteen or twenty years. It carries the car light, the alarm, the door operator signals, the intercom and the position data, and when it fails, the lift stops.

The most widely used cable for that job in Europe is H05VVH6-F: a flat, PVC-insulated, PVC-sheathed flexible cable built to EN 50214. This page explains what it is, how to read the size tables, and how to pick the right configuration without over-specifying.

What a travelling cable actually has to survive

A travelling cable is not a control cable that happens to be hanging up. Three things make its life unusual:

  • Continuous bending in one plane. The loop rolls up and down as the car moves. A round multicore cable would twist and eventually corkscrew; a flat cable with its cores laid side by side bends along one axis and stays flat.
  • Its own weight. The cable hangs freely for the whole travel height. The conductors carry that load, which is why free suspension length is a hard limit, not a suggestion.
  • Contact with the shaft. Wall guides, brackets and the occasional draught mean the sheath has to take abrasion without splitting.

That combination is why lift cables have their own standard rather than being covered by general flexible-cable specifications.

Reading the H05VVH6-F designation

The type code is not a model name — each part of it means something under the harmonised European system:

  • H – harmonised type, built to a recognised European specification
  • 05 – rated voltage 300/500 V
  • V – PVC insulation
  • V – PVC outer sheath
  • H6 – flat cable construction for lift/elevator use
  • -F – fine-wire flexible conductor (class 5)

You will also see the higher-voltage sibling H07VVH6-F (450/750 V) where the same flat cable has to carry power as well as control circuits.

What "G" and "×" mean in the size code

This trips people up more often than it should. In 12G0.75, the G means one of the twelve cores is the green/yellow protective conductor. In 24×0.75, the × means there is no green/yellow core — all twenty-four are numbered. If you order a "G" type expecting 24 usable numbered cores, you will be one short.

Construction

ConductorBare copper, flexible stranded (class 5)
InsulationPVC
Core identificationColour coded, or black cores with printed numbers; green/yellow earth core carries no number
Outer sheathPVC, black or grey
Core arrangementParallel cores in a flat, non-divisible profile

Technical data

StandardEN 50214 (JIS C 3408 for selected sizes)
Rated voltage U0/U300/500 V (0.75–1 mm²)
Test voltage2 kV for 15 minutes
Operating temperature−15 °C to +70 °C
Maximum car speed4 m/s
Minimum bending radius10 × cable thickness
Maximum free suspension length30 m (0.50 mm²) · 45 m (0.75 and 1 mm²)
Typical applicationElevator control and command circuits; lifts, hoists and similar vertically travelling equipment

The temperature range is the cable's own limit, not the shaft's. Unheated shafts in cold climates and machine rooms above +70 °C both push PVC outside its comfort zone — check the extremes before you specify, not after the first winter.

Sizes, dimensions and weights

Flat cables grow sideways. Thickness stays close to 4 mm across the whole range while width increases by roughly 2.6–2.9 mm per core, which is what you need to know when you size the hanging bracket and the shaft clearance.

0.50 mm²

Cores × mm²Width × thickness (mm)Weight (kg/km)Standard
12 G 0.5031.5 × 4.1165EN 50214
16 G 0.5042.5 × 4.1289EN 50214
18 G 0.5047.1 × 4.1330EN 50214
20 G 0.5053.0 × 4.1369EN 50214
24 G 0.5063.5 × 4.1441EN 50214
30 G 0.5078.0 × 4.1415EN 50214
32 G 0.5083.0 × 4.1440
Maximum free suspension length for 0.50 mm² sizes: 30 m. Supply lengths 500 m or 1000 m.

0.75 mm²

Cores × mm²Width × thickness (mm)Weight (kg/km)Standard
4 G 0.7512.6 × 4.291EN 50214
6 G 0.7518.4 × 4.2143EN 50214
8 G 0.7523.2 × 4.2175EN 50214
9 G 0.7526.6 × 4.2201EN 50214
12 G 0.7533.8 × 4.2260EN 50214
14 G 0.7539.6 × 4.2305EN 50214
16 G 0.7544.4 × 4.2337EN 50214
18 G 0.7549.2 × 4.2384EN 50214
20 G 0.7555.0 × 4.2429EN 50214
24 G 0.7565.6 × 4.2513EN 50214
24 × 0.7555.2 × 4.0416JIS C 3408
30 G 0.7581.0 × 4.2610EN 50214
32 G 0.7587.3 × 4.2650
36 G 0.7545.8 × 8.5690EN 50214
Maximum free suspension length: 45 m. Note the 36-core version — it is built as a double layer, so it is half the width but twice the thickness, which changes the bending radius you have to allow for.

1 mm²

Cores × mm²Width × thickness (mm)Weight (kg/km)Standard
7 G 123.2 × 4.3198EN 50214
9 G 127.8 × 4.3226EN 50214
12 G 135.0 × 4.3295EN 50214
18 G 151.0 × 4.3435EN 50214
20 G 157.0 × 4.3487EN 50214
24 G 168.0 × 4.3583EN 50214
Maximum free suspension length: 45 m. Supply lengths 500 m or 1000 m.

Dimensions and weights are nominal and differ slightly between manufacturers. Confirm against the datasheet for the reel you are actually buying.

How to choose the right configuration

1. Start with travel height, not core count

Free suspension length is the first filter and the least forgiving one. If the car travels more than 45 m, plain H05VVH6-F is out — you need a version with an integrated supporting element, or a mid-shaft support arrangement. Below that, 0.50 mm² covers up to 30 m and 0.75 mm² up to 45 m.

2. Count the cores, then add spares

Add up what the car actually needs — door operator, car light, alarm, intercom, load weighing, inspection box, position sensors — and then add 10–20% spare cores. Replacing a travelling cable is a shaft job with the lift out of service; adding four spare cores at order time costs almost nothing by comparison. This is why 18G and 24G are the sizes that move fastest.

3. Pick the cross-section from current and length

Most command and signal circuits are happy on 0.50 mm². Move up to 0.75 or 1 mm² where you have a real load (car lighting, a door motor, a fan) or where volt drop over the full loop starts to matter. Remember the loop is roughly one and a half times the travel height, not the travel height itself.

4. Check the environment

PVC is the default and it is fine for the vast majority of installations. Buildings with public-safety fire requirements — hospitals, airports, metro stations, high-rise residential in many jurisdictions — often call for a halogen-free type instead, so check the fire specification before you settle on PVC.

Installation and handling

  • Let the cable hang naturally. Pay it out from the reel and give it time to settle before you cut to length. Cable that is forced into a loop keeps the memory of the twist.
  • Respect the bending radius. Minimum 10 × the cable thickness — about 42 mm for a 4.2 mm thick cable. The natural hanging loop is usually far larger; the risk is at the fixing points and inside the car apron, where cable gets pushed into a tight corner.
  • Take the strain at the hanger, not the terminals. Use proper wedge-type hangers at both the car and shaft ends. A cable carrying its own weight through the terminal screws will fail at the terminal screws.
  • Bend flatwise only. The cable is designed to flex across its thickness. Twisting it on its edge shortens its life dramatically.
  • Keep clear of the counterweight path. Obvious, but still the most common cause of shredded travelling cables.

When to specify something else

TypeUse it when
H05VVD3H6-FTravel height exceeds the free suspension limit of plain PVC flat cable. It carries an integrated supporting element that takes the mechanical load off the conductors.
05Z1Z1H6-F (halogen-free)The building's fire specification requires low smoke and zero halogen — typical in hospitals, transport hubs, data centres and tall buildings.
H07VVH6-FThe same flat cable is needed at 450/750 V for power circuits rather than 300/500 V control circuits.
Flat cable with data coresThe installation needs screened pairs or coax in the same profile, for CCTV, intercom or bus systems on the car.

Frequently asked questions

What does H05VVH6-F stand for?

A harmonised (H), 300/500 V (05), PVC-insulated and PVC-sheathed (VV), flat lift cable (H6) with fine-stranded flexible conductors (F), manufactured to EN 50214.

How long can an H05VVH6-F travelling cable hang?

30 m of free suspension for 0.50 mm² sizes and 45 m for 0.75 and 1 mm². Beyond that, use a type with an integrated supporting element.

Why is elevator travelling cable flat instead of round?

A flat profile bends in one plane and does not twist as it rolls through the hanging loop. It also lets the cores be identical in length, which keeps them equally loaded, and it packs neatly against the shaft wall.

What is the difference between 24G0.75 and 24×0.75?

"G" means one core is the green/yellow protective conductor, leaving 23 numbered cores. "×" means all 24 cores are numbered and there is no earth core.

What maximum lift speed is H05VVH6-F rated for?

4 m/s. Faster installations need a cable specifically rated for high-speed travel.

Can it be used outdoors or in an unheated shaft?

The rated range is −15 °C to +70 °C. PVC stiffens as it gets cold, so for shafts that regularly go below −15 °C, or for outdoor and UV-exposed runs, a cable specified for those conditions is the better choice.

Summary

H05VVH6-F is the default flat elevator travelling cable for standard passenger and goods lifts: 300/500 V, EN 50214, −15 °C to +70 °C, up to 4 m/s, and available from 4 cores up to 36. Get the travel height and the core count right at the specification stage, allow a few spare cores, hang it properly, and it will outlast most of the equipment around it.