THE WORLD JUST GOT BRIGHTER
+44 (0)121 457 6340
2020
EMERGENCY LIGHTING
CORE RANGE
www.nvcuk.com
EMERGENCY
RANGE
NVC LIGHTING EMERGENCY BROCHURE 2020
1
EMERGENCY LIGHTING
CORE RANGE
Emergency lighting you don’t have a choice
Emergency lighting - you buy it because you have to, not because you want to. Our aim is to make the process as simple and painless as possible, providing a one-stop shop for a comprehensive range of emergency lighting that meets all your requirements: •
Covers every application area from office, through corridors and stairwells to the warehouse and workshop.
•
Complies with all the current regulations
•
Signage, functional emergency lighting (twinspots & bulkheads) and emergency conversions (panels & downlights)
•
Manual test, self-test or addressable self-test
We are here to help you comply
Are you still using nickelcadmium batteries?
NVC is cadmium-free. You can be too Cadmium was banned under the RoHS directive in 2006 because it is so toxic and very persistent in the environment, but the emergency lighting business continued to use cadmium batteries (NiCd) because of the lack of alternatives.
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2
Emergency lighting is highly regulated. It’s not good enough just to have some; the light fixtures have to be compliant, their location and spacing must be compliant and then they must be regularly tested to the appropriate standard.
That has now changed.
• Our fixtures are compliant with BS EN 60598
Lithium iron phosphate (LiFePO4, or LFE) batteries are now so much better than NiCd in every respect that we are replacing the NiCd batteries in in our emergency range with LFE. Most of our range is cadmium free already (Q4 2020), and the process will be completed by the end of 2021. NVC will then be cadmium-free.
• We offer emergency lighting design compliant with BS EN 1838 / BS 5266-4
Come with NVC and let’s all be cadmium-free. (More information on page 14)
• Our signage is compliant with the European Signs Directive, ISO7010 & BS 5266
LiFePO4
LITHIUM IRON PHOSPAHTE
NVC LIGHTING EMERGENCY BROCHURE 2020
NiCd NICKELCADMIUM
• Our self-test fittings are compliant with BS 5266-8
EMERGENCY LIGHTING
CORE RANGE
CONTENTS INTRODUCTION
P2/3
ARLINGTON
P4/5
LEXINGTON SLIM
P6
LEXINGTON
P7
SENECA RECESSED
P8
SENECA SURFACE
P9
KANSAS
P10
NEBRASKA
P11
PLUG-IN CONVERSION
P12
SELF-TEST and MANUAL TEST
P13
ISO and EURO LEGENDS
P13
CADMIUM FREE/LITHIUM
P14/15
BACK COVER
P16
Lithium iron phosphate (LiFePO4 or LFE) the superior battery technology LFE out-performs NiCd on almost every count: • LFE lasts twice as long o The NiCd batteries in an emergency fitting should last for 4 years – if you treat them well and don’t use them too much. o Our LFE batteries will last for 8-10 years. Double the life, half the maintenance. • LFE save >40% energy compared to NiCd o NiCd batteries are losing charge all the time – about 20% per month – so the charging circuit is working 24/7 to keep them topped-up. o LFE only lose 3-5% per month, so we charge them in a short burst every 1 or two months. A typical IP65 bulk head using NiCd batteries using an extra 12.8 kWh per year compared to the same fitting with LFE batteries. LFE works better at high and low temperatures o High temperatures: NiCd is rated up to 55ºC. LFE rated up to 60ºC o Low temperatures: NiCd will not perform to the required specification below 0ºC, whereas LFE will perform to -20ºC
+44 (0)121 457 6340
•
• LFE is safe o There are many types of lithium battery. Lithium iron phosphate is the safest. o LFE will not catch fire, explode or leak
NVC LIGHTING EMERGENCY BROCHURE 2020
www.nvcuk.com
• LFE is the environmentally responsible choice o We can expect that cadmium will be completely banned before long. Why wait to be forced? Act now! o LFE batteries are fully recyclable
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EMERGENCY LIGHTING
CORE RANGE
ARLINGTON LITHIUM
Versatile LED exit sign with drop blade with multitude of fixing options, for 3 hour maintained operation
I R O N P H O S P H AT E
£ 2X
ON ING iCd SAV N 50% STS v O T O C UP NING , RUN LIFE NAL ATIO AINTAIN R E M OP THE COST TO BLE DOU ALF THE S SO H NCE STA URE SUB T XIC NUFAC O T MA NO D IN USE X IC D N O N -T O CLE ECY BE R CAN LI-ION
HEAD POSTIONED SO IT CAN BE MOUNTED TO THE CEILING
HEAD ROATATED 90O SO IT CAN BE MOUNTED TO A WALL
SCAN FOR DIGITAL COPY
APPLICATIONS
CONSTRUCTION
OPTIONS
- Corridors - Exits - Escape routes
- Injection moulded white pc body - 5mm thick clear acrylic blade - Changeable 0.25mm thick acrylic screen printed exit legends - Supplied complete with arrow down running man - Lithium Iron Phosphate (LiFePO4) 3.2V 1500mAh battery (not suitable for use below 0oC) - Main body rotates 90 degrees to allow direct fixing to ceiling or a wall
LEGENDS Alternative legends available as listed - to be ordered as separate items. For “man running through door”, use suffix V2, as listed.
SPECIFICATION - 3 hours operation on battery power after mains power failure - Can be wired up for either Maintained or Non-Maintained operation - Charge indicator lamp fitted - 30m maximum viewing distance - Self-test version, compliant with BS5266 available. Suffix STM3 as listed
FIXING ATTACHMENTS Optional fixing attachments to allow: • Recessed fixing • Wire Suspension • Side wall mounting See opposite
+44 (0)121 457 6340 www.nvcuk.com
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NVC LIGHTING EMERGENCY BROCHURE 2020
ORDER CODE
DESCRIPTION
NAL/M3
Arlington LED Maintained 3Hr Blade Exit Sign
NAL/STM3
Arlington LED Maintained 3Hr Blade Exit Sign Self Test
ARLINGTON ATTACHMENTS Range of optional attachments
RECESSED CEILING KIT
SIDE WALL MOUNTED BRACKET
WIRE SUSPENSION KIT
NAL/RMK
Arlington Recessed Mounting Kit
NAL/SWMK
Arlington Side Wall Mounting Kit
NAL/WSK
Arlington Wire Suspension Kit
Legends available as listed - to be ordered as separate items.
LEGENDS Arlington Legend Running Man Left Right Pack
NAL/LE/UP
Arlington Legend Running Man Up Pack
NAL/LE/DOWN/V2
Arlington V2 Legend Man Running Thru Door Down Pack
NAL/LE/LR/V2
Arlington V2 Legend Man Running Thru Door Down Pack
NAL/LE/UP/V2
Arlington V2 Legend Man Running Thru Door Up Pack
www.nvcuk.com
NAL/LE/LR
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LEGENDS
ATTACHMENTS
EMERGENCY LIGHTING
CORE RANGE
NVC LIGHTING EMERGENCY BROCHURE 2020
5
EMERGENCY LIGHTING
CORE RANGE
LEXINGTON SLIM
LITHIUM
Slim LED 3 hour maintained/ non-maintained exit box
ON VING NiCd % SA v O 50 COSTS T P U NING IFE, RUN AL L TION INTAIN ERA A P M O THE COST TO BLE DOU ALF THE S H O S NCE STA URE SUB T XIC NUFAC O T MA NO D IN USE XI C D N O N -T O CLE ECY BE R CAN
I R O N P H O S P H AT E
£ 2X
LI-ION
V2 LEGEND “MAN RUNNING THROUGH DOOR”
SCAN FOR DIGITAL COPY
APPLICATIONS
TECHNICAL DETAILS
OPTIONS
- Corridors - Exits - Escape routes
- 3 hours operation on battery power after mains power failure - Can be installed as maintained or non-maintained. Details in instructions. - 30m maximum viewing distance - Self-test version, compliant with BS5266 available. Suffix STM3 as listed
LEGENDS Alternative legends available as listed - to be ordered as separate items. For “man running through door”, use suffix V2, as listed.
CONSTRUCTION - Injection moulded White Polycarbonate body construction - Acrylic lit panel - Changeable PVC legend panel - Supplied complete with arrow-down legend as shown - Lithium Iron Phosphate (LiFePO4) battery cells (not suitable for use below 0oC)
+44 (0)121 457 6340
DESCRIPTION
NLE/SLIM/M3
Lexington Slim LED Exit Box Maintained 3Hr
NLE/SLIM/STM3
Lexington Slim LED Exit Box Maintained 3Hr Self Test
ATTACHMENTS
www.nvcuk.com
6
ORDER CODE
NVC LIGHTING EMERGENCY BROCHURE 2020
NLE/SLIM/LE/UP
Lexington Slim Legend Up
NLE/SLIM/LE/DOWN
Lexington Slim Legend Down
NLE/SLIM/LE/LEFT
Lexington Slim Legend Left
NLE/SLIM/LE/RIGHT
Lexington Slim Legend Right
NLE/SLIM/V2/LE/UP
Lexington Slim V2 Legend Up
NLE/SLIM/V2/LE/DOWN
Lexington Slim V2 Legend Down
NLE/SLIM/V2/LE/LEFT
Lexington Slim V2 Legend Left
NLE/SLIM/V2/LE/RIGHT
Lexington Slim V2 Legend Right
LEXINGTON LED 3 hour maintained/non-maintained exit box
EMERGENCY LIGHTING
CORE RANGE
LITHIUM
ON VING d % SA TS v NiC 0 5 S O UP T ING CO N IFE, RUN AL L TION INTAIN A R MA OPE THE COST TO BLE DOU ALF THE CES SO H TAN UBS CTURE IC S TOX MANUFA O N D IN USE XI C D N O N -T O CLE ECY BE R N A C
I R O N P H O S P H AT E
£ 2X
LI-ION
V2 LEGEND “MAN RUNNING THROUGH DOOR”
SCAN FOR DIGITAL COPY
APPLICATIONS
TECHNICAL DETAILS
OPTIONS
- Corridors - Exits - Escape routes
- 3 hours operation on battery power after mains power failure - Can be installed as maintained or non-maintained. Details in instructions. - Momentary manual test button fitted - 30m maximum viewing distance - Self-test version, compliant with BS5266 available. Suffix STM3 as listed
LEGENDS Alternative legends available as listed - to be ordered as separate items. For “man running through door”, use suffix V2, as listed.
CONSTRUCTION - Robust steel body - White gloss powder coated finish - Polycarbonate legend panel - Supplied complete with arrow-down legend as shown - Lithium Iron Phosphate (LiFePO4) 3.2V 1500mAh battery (not suitable for use below 0oC )
DESCRIPTION
NLE/M3
Lexington LED Exit Box Maintained 3Hr
NLE/STM3
Lexington LED Exit Box Maintained 3Hr Self Test
+44 (0)121 457 6340
ORDER CODE
ATTACHMENTS Lexington Legend Down
NLE/LE/LEFT
Lexington Legend Left
NLE/LE/RIGHT
Lexington Legend Right
NLE/LE/UP
Lexington Legend Up
NLE/V2/LE/DOWN
Lexington V2 Legend Down
NLE/V2/LE/LEFT
Lexington V2 Legend Left
NLE/V2/LE/RIGHT
Lexington V2 Legend Right
NLE/V2/LE/UP
Lexington V2 Legend Up (Ahead)
www.nvcuk.com
NLE/LE/Down
NVC LIGHTING EMERGENCY BROCHURE 2020
7
EMERGENCY LIGHTING
CORE RANGE
SENECA SURFACE Dedicated LED emergency fittings for surface mounting
LITHIUM
WITH OVAL LENS FITTED
N GO d AVIN iC 0% S STS v N 5 O UP T ING CO N , RUN LIFE NAL ATIO AINTAIN R E M OP THE COST TO BLE DOU ALF THE S H SO NCE STA E SUB ACTUR IC X F TO MANU NO IN D USE XI C D N O N -T O CLE ECY BE R CAN
I R O N P H O S P H AT E
£ 2X
LI-ION
SENECA SURFACE COMES WITH BOTH WIDE AND OVAL LENSES WHICH TWIST AND LOCK IN POSITION
WITH WIDE LENS FITTED
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APPLICATIONS
TECHNICAL DETAILS
- Corridors - Escape routes
- 186 lumens - Non-maintained operation - Choice of two lenses for different light distributions: • Wide, giving a circular distribution • Oval, giving an oval light distribution. - Momentary manual test button fitted - Self-test version, compliant with BS5266
CONSTRUCTION - Moulded polycarbonate body construction - Acrylic lens - Lithium Iron Phosphate (LiFePO4) 3.2V 3000mAh battery (not suitable for use below 0oC)
WIDE VERSION Light distribution 360° symmetric. Suitable for open areas.
OVAL VERSION Light distribution elongated in one dimension, short in the other. Suitable for corridors.
+44 (0)121 457 6340 www.nvcuk.com
8
NVC LIGHTING EMERGENCY BROCHURE 2020
ORDER CODE
DESCRIPTION
NSC/SURF/NM3
Seneca LED Non-Maintained 3Hr Surface Mount
NSC/SURF/STNM3
Seneca LED Non-Maintained 3Hr Surface Mount Self Test
SENECA RECESSED Dedicated LED emergency fittings for recessed mounting
LITHIUM
ON ING iCd SAV N 50% STS v O T CO UP NING IFE, RUN AL L IN ION RAT MAINTA E P O THE COST TO BLE DOU ALF THE H CES SO TAN RE UBS IC S UFACTU X O T MAN NO D IN USE XI C D N O N -T O CLE ECY BE R CAN
I R O N P H O S P H AT E
£ 2X
EMERGENCY LIGHTING
CORE RANGE
LI-ION
MODULE AND LIFEPO4 BATTERY
CHANGEABLE LENS - COMES WITH BOTH WIDE & OVAL DISTRIBUTION OPTIONS
APPLICATIONS
TECHNICAL DETAILS
- Corridors - Escape routes
- 190 lumens - Non-maintained operation - Choice of two lenses for different light distributions: • Wide, giving a circular distribution • Oval, giving an oval light distribution. (supplied loose in the box). - Momentary manual test button fitted - Self-test version, compliant with BS5266
CONSTRUCTION - Moulded polycarbonate body - Acrylic lens - Lithium Iron Phosphate (LiFePO4) 3.2V 3000mAh battery (not suitable for use below 0oC)
WIDE VERSION Light distribution 360° symmetric. Suitable for open areas.
OVAL VERSION Light distribution elongated in one dimension, short in the other. Suitable for corridors.
+44 (0)121 457 6340
DESCRIPTION
NSC3/REC/NM3
Seneca 3W LED Non-Maintained Recessed
NSC3/REC/STNM3
Seneca 3W LED Non-Maintained Recessed Self Test
www.nvcuk.com
ORDER CODE
NVC LIGHTING EMERGENCY BROCHURE 2020
9
EMERGENCY LIGHTING
CORE RANGE
NEBRASKALITHIUM IP65 LED slim emergency bulkhead with a range of attachments
NEBRASKA SEMI-RECESSED MOUNTING KIT
STANDARD LEGENDS GEAR TRAY FIXED TO DIFFUSER FOR FASTER AVAILABLE AS UP, DOWN, LEFT & RIGHT INSTALLATION
“MAN RUNNING THROUGH DOOR” V2 LEGENDS AVAILABLE AS UP, DOWN, LEFT & RIGHT
SCAN FOR DIGITAL COPY
APPLICATIONS
TECHNICAL DETAILS
OPTIONS
- Corridors - Exits - Escape routes
- 175 lm on mains 133 lm on battery supply - 1.9W - 3 hours operation on battery power after mains failure - 20m maximum viewing distance with standard legends - 30m maximum viewing distance with drop-down attachment - Can be installed as maintained or non- maintained. Wiring diagrams are supplied in the instruction leaflet.
DROP DOWN ATTACHMENT Polycarbonate drop down signage attachment available, c/w legends. Order as separate item.
CONSTRUCTION - Polycarbonate base and cover - Cover fitted to base with stainless steel screws in threaded brass inserts - Gear tray fixed to diffuser for instant access to terminal block & fixing points for faster installation - Supplied with standard (“Man running towards door”) legend pack. - 20mm conduit entry - Lithium (LiFePO4) battery cells (not suitable for use below 0oC)
+44 (0)121 457 6340
NEBRASKA WITH DROP DOWN ATTACHMENT
NEBRASKA
RECESSED MOUNTING KIT Semi-recessed mounting kit available. Cut-out 360 x 120mm. Order as a separate item. LEGENDS Spare legend packs available. Alternative legend pack available as listed - to be ordered as a separate item. For “man running through door”, use suffix V2, as listed.
ORDER CODE
DESCRIPTION
NNE/2/LED/M3/LITH/V3
Nebraska V3 2W LED IP65 Maint. 3Hr Lithium
ATTACHMENTS www.nvcuk.com
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NVC LIGHTING EMERGENCY BROCHURE 2020
NNE/DDA/V3
Nebraska Drop Down Attachment C/W Legend Packs
NNE/RMK/V3
Nebraska V3 Recessed Mounting Kit
NNE/V2/LEP4
Nebraska V2 Legend Pack Of Up Down Left Right
NNELEP4
Nebraska Legend Pack Of Up Down Left Right
KANSAS IP65 Twinspot LED IP65 with Self Test
LITHIUM
ON VING d % SA TS v NiC 0 5 S O UP T ING CO N , N RU LIFE NAL ATIO AINTAIN R E M OP THE COST TO BLE DOU ALF THE S SO H NCE STA E SUB ACTUR IC TOX MANUF NO IN D USE XI C D N O N -T O CLE ECY BE R N A C
I R O N P H O S P H AT E
£ 2X
EMERGENCY LIGHTING
CORE RANGE
LI-ION
SCAN FOR DIGITAL COPY
APPLICATIONS
TECHNICAL DETAILS
- Suitable for general industrial use, 0°C - +35°C
- 3-hour Non-Maintained - 2 x 3W body & heads - 380 total lumen output - Self-Testing compliant with BS5266 comprising of a monthly functional test & an annual 3-hour duration test - LED indicators show the status of the Luminaire
CONSTRUCTION - Injection moulded ABS body - Polycarbonate heads, including lens - Lithium Iron Phosphate (LiFePO4) 3.2V 5500mAh battery - Suitable for mounting in any orientation - Heads can be rotated & tilted - Piano key terminal block for ease of installation
DESCRIPTION
NKS2X3/IP65/STNM3
Kansas Twinspot IP65 2X3W LED Non-Maint. 3Hrs Self Test
www.nvcuk.com
ORDER CODE
+44 (0)121 457 6340
2 x 3W LED
NVC LIGHTING EMERGENCY BROCHURE 2020
11
EMERGENCY LIGHTING
CORE RANGE
M3 RECESSED CONVERSION PACK
LITHIUM IRON PHOSPHATE BATTERY (LiFePO4) Battery Pack, 2 cell 6.4V 1500mAh with dedicated protection circuit.
Plug & Play option for a range of LED fittings
USED WITH THE FOLLOWING PRODUCTS For further information speak to our Sales Team.
+44 (0)121 457 6340 www.nvcuk.com
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INSTALLATION Comes complete with loop in loop out connectors for ease of installation Twist lock Connectors are provided on the M3 pack to make it easy to convert suitable existing fittings into emergency luminaires for maximum flexibility.
ORDER CODE
DESCRIPTION
N/REC/M3/PACK/V2
M3 Pack For NST, NFU, NBI, NDR, NWK, NWP Rec Product Ranges
NVC LIGHTING EMERGENCY BROCHURE 2020
SCAN FOR DIGITAL COPY
EMERGENCY LIGHTING TESTING BS 5266 requires a short functional test every month and an annual 3-hour test. We offer 3 ways to test emergency lighting:
Manual testing A key-switch is used to disconnect the permanent live supply to the emergency fitting. When this is disconnected the fitting switches to battery operation. It is necessary to observe the fitting to check it is working correctly and for the required duration. We supply a log sheet for recording the results. Manual testing is ideal for small installations, but the burden of record keeping and remembering to do the test every month will be impractical for larger buildings. All the fittings in this presentation/brochure are available in manual test versions.
There are TWO STYLES of emergency exit sign ...that are valid for use in the UK, and we supply them both
EUROPEAN SIGNS DIRECTIVE The European Signs Directive calls for the following legends, which are sometimes also referred to as “Euro legends”. They are easily distinguished by their use of an image of a man running towards a door. This is the style of legend supplied as standard with all our exit sign fittings.
The three Euro legends in common use are:
Self-test
Exit to the left
Some fittings can carry out their own test without human intervention or the need for a key-switch and the associated wiring. A self-testing emergency fitting is autonomous; it is operating on its own without any communication with neighbouring fittings or a central control point. A tri-colour (red, yellow and green) LED will indicate if the fitting is working correctly (green) or if it has an LED fault (yellow) or a battery fault (red).
Exit straight ahead
Self-test has great advantages: • Simpler to install than manual test - no key switch required • Simpler to install than addressable self-test (see below) because there is no communications wiring • Unlike an addressable self-test system, no commissioning by the installer is required …and disadvantages: • Manual test records are still required.
The self-test versions of our emergency products can be ordered as follows: ORDER CODE
DESCRIPTION
NAL/STM3
Arlington LED Maintained 3Hr Blade Exit Sign Self Test
NLE/SLIM/STM3
Lexington Slim LED Exit Box Maintained 3Hr Self Test
NLE/STM3
Lexington LED Exit Box Maintained 3Hr Self Test
NSC/SURF/STNM3
Seneca LED Non-Maintained 3Hr Surface Mount Self Test
NSC3/REC/STNM3
Seneca 3W LED Non-Maintained Recessed Self Test
NKS2X3/IP65/STNM3
Kansas Twinspot IP65 2X3W LED Non-Maint. 3Hrs Self Test
N/REC/M3/PACK/V2
M3 Pack For NST, NFU, NBI, NDR, NWK, NWP Rec Product Ranges
Exit to the right
The European Signs Directive is not explicit concerning the use of either an up or downarrow to indicate “straight ahead”. Both are acceptable, but we supply the arrow-down legend as standard.
ISO7010 & BS5266 These 2 standards both use a single set of legends, sometimes referred to as “ISO7010” legends. They are easily distinguished by their use of an image of a man running through a door. These legends are available as optional extras with all our exit signs fittings.
There are three ISO7010 legends in common use:
Exit to the left
For larger sites we recommend an addressable self-test system. Addressable selftest emergency luminaires are all connected together and to a central point on a communications bus (usually DALI) and each fitting has a unique address.
We work with several leading suppliers of this specialized equipment and we will propose solutions that we consider to be most appropriate for a particular client or project.
Exit to the right
Note that ISO7010 and BS5266 are explicit that “straight ahead” is to be indicated with an up-arrow. NVC LIGHTING EMERGENCY BROCHURE 2020
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Periodically, the central controller will command each emergency luminaire to start a test sequence and report the results back to the central controller.
Exit straight ahead
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Addressable self-test
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WHAT ARE LITHIUM IRON PHOSPHATE (LiFePO4) BATTERIES AND WHY DO WE USE THEM? THE BASICS
SIZE MATTERS
Lithium-ion. A lithium-ion cell is a secondary (rechargeable) cell in which lithium-ions move from the anode to the cathode when charging and from the cathode to the anode when discharging. There are several types of lithium-ion cells.
The NiCd battery pack traditionally used for emergency lighting is large and heavy. It has to be – because NiCd batteries suffer from the “Memory effect”. Partial discharge and recharging causes them to “forget” part of their capacity, so they store less energy every time they are used or tested.
Lithium iron. A lithium iron cell is one particular type of lithium-ion cell and it uses lithium iron phosphate (LiFePO4) chemistry.
CHARGER
I
e-
+
e-
I
LOAD
I
I
-
e-
+
I
-
I
Li+ POSITIVE ANODE
e-
POSITIVE CATHODE
NEGATIVE ANODE
DISCHARGE
CHARGE
Key:
I I
Li+ NEGATIVE CATHODE
HOW A LITHIUM IRON CELL WORKS
Therefore, as new, the NiCd batteries are larger than they need to be to compensate for the fact that they will store less and less energy as they age.
CURRENT
Li+ LITHIUM-ION
e-
ELECTRON
TYPES OF LITHIUM-ION CELLS
There are many types of lithium-ion cells, including •
Lithium cobalt oxide (LiCoO4, or LCO). This is widely used for mobile phones, computers and cameras because of its high power density (it stores a lot of power for its size and weight). However, it is not as long lasting as some chemistries, is expensive due to the high cobalt content and may exhibit thermal runaway under some fault conditions.
•
Lithium nickel manganese cobalt oxide (LiNiMnCoO4, or NMC). In many respects an improvement on LCO, but still carrying a risk of thermal runaway under fault conditions. This is widely used for power tools.
•
Lithium iron phosphate (LiFePO4, or LFE). The power density is slightly less than the LCO and NMC, but it is lower cost, longer lasting and does not have the thermal runaway properties that have caused problems with other types of lithium ion cells. It is an ideal choice for emergency lighting.
IMAGE
LFE batteries don’t suffer from the memory effect, so their capacity stays almost constant through their life. Therefore we need fewer of them to deliver the power required.
80% ENERGY SAVING +44 (0)121 457 6340 www.nvcuk.com
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NiCd batteries lose power at the rate of 10-20% per month (depending on temperature), so they have to be constantly on-charge, keeping them topped-up to c 100%. LFE batteries only lose 3-5% per month, so they are recharged in short bursts every 1 or 2 months. LFEs benefit from 95% charging efficiency - 95% of the power entering the charger is stored in the battery. By contrast, NiCd batteries have a charge efficiency of only 85% - meaning that 15% of the power they consume while charging is lost as heat. To assess their overall energy efficiency we tested the performance of our own (very popular) IP65 emergency bulkhead using NiCd batteries and using LFE batteries. On average the NiCd version consumes 1.83 W while the LFE version consumes just 0.37W, an energy saving of 80%. [Picture & graph from web article] NVC LIGHTING EMERGENCY BROCHURE 2020
IMAGE
THE GREEN QUESTION Lithium v Cadmium which is better for the environment?
• Cadmium is classed as a heavy metal, alongside lead and mercury and like them it is highly toxic. It is banned under the RoHS Directive, but emergency lighting has an exemption because of the lack, till now, of viable alternatives. Lithium is not under similar restrictions. • Cadmium is highly persistent in the environment. Recent studies in the river Thames have found cadmium in the sediment at the bottom of the river dating back to London’s industrial heyday many decades ago. • Lithium batteries are much more energy efficient than NiCd, so they are contributing to our efforts to reduce our greenhouse gas emissions.
+44 (0)121 457 6340
• Lithium batteries last twice as long as NiCd, so there is less material to dispose of. • Lithium batteries are smaller (because they don’t have the NiCd memory effect), so there is less material being consumed and less to be disposed of. [Javed – we could summarise these last 2 points in a graph. Can you get the samples (1 x NiCd and 1 x LFE) weighed? Then I can create something.]
www.nvcuk.com
NVC LIGHTING EMERGENCY BROCHURE 2020
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Owned by one of the world’s largest lighting manufacturers, NVC UK has been operating from the West Midlands since 2007. The company supplies a wide range of LED lighting products for internal and external applications to virtually all industry sectors, which are all designed and manufactured to meet local/sector standards and are subjected to rigorous inspection and testing that results in 99.5% right-first-time performance. NVC UK has achieved ISO 9000, 14001 and 45001 certifications.
CERTIFIED
FS 690066
EMS 716023
OHS 716024
NVC Lighting Limited NVC Park 201, Hollymoor Way, Rubery, Birmingham B31 5HE UK T +44 (0)121 457 6340
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E sales@nvcuk.com
NVC LIGHTING EMERGENCY BROCHURE 2020
BRO/EMG/OCT2020