TECHNICAL SPECIFICATIONS:
1. PV modules
2. Deep cycle battery
3. White LED with lamp holder and lampshade
4. Exterior luminary including lampholder
5. DC switch
6. DC plug box
7. Fuse holder and fuse
8. Outdoor cabling
- Cabtyre cable: 2x2.5mm2 and 2x4mm2
- Illumination cable: 2x2.5mm2 and 2x4mm2
9. Indoor cabling
- Special Ripcord: 2 x 0.75mm2, 2 x 1.5mm2, 2 x 2.5mm2 and 2 x 4mm2
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Subject
Description
Value
To be filled by supplier
PV MODULES
1
2
Electrical characteristics
Voltage
Peak Power (Pp)
3
4
Tolerance
Number of cells
5
Construction / design
Material
6
Encapsulation (glass)
7
By-pass diode
8
Frame
9
Junction boxes
Specifically manufactured for effectively charging 12 V batteries
Pp required is the minimum peak power guaranteed by the supplier.
At least 95 Wp (i.e. +10% of the nominal Wp)
Positive tolerance is preferred. See Row above
Typically comprising 36 solar cells in series. For any other number of cells,
the tender will demonstrate how the module can effectively charge a 12 V
battery in the local conditions of temperature.
12 V
95 Wp
>= 36
Silicon (Mono-crystalline or poly-crystalline)
PV cells encapsulated in a protective tempered and smooth glass material
which should be at least 3.2 mm thick.
Glass-film (Tedlar or equivalent) laminate.
located in the module junction box so that it can be replaced. Minimum
qty :
Aluminum edge reinforced frame with holes for secure mounting to a sub
structure. All modules with the same frame that withstand the duration of
the module power output warrantee.
Positive and negative terminals should be enclosed with either:
a) in a weather proof junction box with sealing glands and robust
metallic screws, accepting a cable up to 2 x 4 mm². Plastic screws are
not accepted.
3.2 mm
1 for 18
PV cells
IP 54
b) output cable that connects the module via a sealed weather proof
termination.
10
11
Labeling of product
Each unit must be labeled
with :
a. Manufacturer, Model Number
b. Serial Number with RFID (active or passive)
c. Pp (Wp +- tolerance), UmppSTC, ImppSTC, Uoc STC, Isc STC
STC : 1000W/m²; Cell temperature 25°C; AM 1.5
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12
Subject
Serial number
Description
Value
To be filled by supplier
Clearly visible, incorporated / engraved inside the laminate,
A “NuRa” logo is required along with a specific number and text “if stolen,
please call ………….”)
Guarantee
13
Performance guarantee
After 20 years of operation, the remaining peak power should be least
14
Product guarantee
In years of operation.
15
International norms
The applicable standards are; certificates will be required

16

Additional requirements
18
Local norms
Must be respected if any exists. (Laws to comply with during
manufacturing)
19
Recycling
20
Local environment
conditions
Documentation requested
(for each module type)
A certificate of membership to the Association PV Cycle (PV module
recycling) will be appreciated if supplied by the tenderer.
Tropical – temperature minimum and maximum
22
Dimensions
23
Comments
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10 years
IEC 61215 (2005-04): “Crystalline silicon terrestrial photovoltaic (PV)
modules – Design qualification and type approval”
IEC 61730 (module electrical safety)
17
21
80 %
a. Manufacturer, Model Number
b. Pp, UmppSTC, ImppSTC, Uoc STC, Isc STC
c. Temperature coefficients for : MPP Power (%/K), MPP Voltage (mV/K
or %/K) and Isc (mA/K or %/K), Uoc (mV/K or %/K)
d. Number of bypass diode
e. I-V curve at STC and NOCT
10°C
45°C
In English
Physical dimensions: 123.1 x 55.6 x 2.5 cm
Maximum width of the module is 55.6 cm
Upon delivery and for final acceptance : The minimum peak power will be
checked with the flash test results of PV modules to be supplied (excel
format)
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24
Subject
Option
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Description
Value
To be filled by supplier
Simple and effective anti-theft system for modules
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DEEP CYCLE BATTERIES
1
2
Electrical characteristics
Voltage
Capacity
3
Life cycle at I20
4
5
Self-discharge rate
Distilled water
consumption
Construction / design
6
7
In case : VRLA are offered
8
9
10
In case : OV are offered
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6 cells of 2 V
Initial C20 capacity rated at 25°C, at the C20 discharge rate and 1,75 V
/ cell.
Before its residual life drops below 80 percent of the rated Ah capacity
when discharged down to an average depth of discharge (DOD) of 20
percent at the discharge rate of 20 hours.
Maximum permissible at 25°C / month
For open vented battery only : should be minimal (less than 0.33 ml
water distilled /Ah during boost charge)
12 V
96 Ah
>1500
3%
Lead-acid battery; Open Vented (OV)or Valve Regulated Lead Acid
(VRLA)
VRLA : Maintenance free deep-cycle battery, with a nominal voltage of
12 V and immobilized electrolyte.
Valve regulated lead acid (VRLA)
 Gel type
 AGM type
 Or combination of both
OV : With electrolyte level clearly visible (from side or top).
OV: Electrolyte reservoir to exceed at least 20% of the volume covering
the plates (i.e. minimum 4 cm above the plates)
OV: Topping-up of electrolyte no more frequently than once or twice
per annum
OV : may be supplied wet-charged condition.
If dry-charged, electrolyte must be supplied in accordance with battery
supplier specifications. Battery and associated containers should be
packaged to handle transport down rough dirt roads. The procedure
for initial charge shall be provided at time of tender, and shall be
tested prior to acceptance of the batteries. Batteries are to be charged
according to the manufacturer’s specifications
OV: Distilled water, funnel, hydrometer, protective gloves, eye
protection, danger signage (acid spills, no smoking, etc.)
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11
12
IP ratings
13
Connection terminals
OV: enclosure and battery room ventilation shall be designed
according to IEC62485-2 “Safety requirements for secondary batteries
and battery installations – Part 2: stationary batteries”.
Casing should be non corrosive, robust.
IP64
Corrosion resistant terminals to secure the connection of electrical
wires of 2 x 4 mm2
Labeling of product
14
Each unit labeled
indicating:
15
Serial number
a) Name and country of manufacturer
b) Month and Year of manufacture or batch number
c) Model or Type number (Gel, AGM, etc.)
d) Rated voltage and capacity at C/n (best C/10 or C/100)
Serial number (it would be an advantage if batteries are supplied with
indelible serial numbers) example: Battery type-yy-ww-unique
number
Guarantee
16
>2 years
Lifetime Warranty
International norms
18
The applicable standards are; certificate will be required







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IEC 61427 Ed. 2.0 (2004-05): “Secondary Cells and Batteries for
Photovoltaic Energy Systems (PVES) – General Requirements and
Methods of Test”
IEC 60896-11; Ed 1.0 (2002): “Stationary lead-acid batteries General requirements and methods of test. Part 1: Vented types”
IEC 60896-21 and 22 Ed 1(2004); “Stationary lead-acid batteries General requirements and test methods : Valve regulated types”
PV GAP, PVRS 5A “Lead-acid batteries for solar photovoltaic energy
systems – General requirements and methods of test for modified
automotive batteries”.
Universal Technical Standard for Solar Home Systems - Thermie B:
SUP 995-96, ECDGXVII, 1998. Version 2, revised 2001.
Battery Guide for Small Stand Alone PV systems IEA PVPS Task III
991223
Where standards are in conflict, the local or international
standards will take precedence (which ever applied upon NuRa
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discretion). Batteries which have not been certified as meeting the
above standards need to be tested according to the General test
conditions and Method as listed in IEC 61427 (2004-05), section 7
and 8.
Additional requirements
19
Local norms
Must be respected if any exists
20
Battery recycling
21
Local environment
conditions
Documentation requested
Would be an advantage if recycling can be organized by supplier and a
residual scrap value with battery offered.
Tropical – Minimum and maximum operating temperature
22
15°C
45°C
a) Nominal capacity at discharge rates ( I10, I20, I100 )
b) Cycle number versus DOD at C20 discharge rate at 20°C.
c) Cycle number versus DOD at a C20 discharge rate at 30°C.
d) A curve with charging voltage versus temperature (-10°C to 40°C).
e) Charging current versus charging time.
f) Capacity versus battery temperature (-10 to 40°C).
g) Self-discharge versus storage temperature (-10 to 40°C).
h) Battery cycle life versus temperature
i) Shelf life versus temperature (operating temperature: -10°c to
40°C).
j) Curve with SOC versus electrolyte density (for OPVB)
k) Operating and maintenance manual
23
Additional comment
White LED lamp with lamp holder and
lampshade
1
Electrical characteristics
Voltage
2
Power
3
Luminous efficiency
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Nominal Voltage
Voltage Range of (11V – 13V)
Nominal power with a range between 90% and 110% of the nominal
voltage value.
Under rated voltage, without cover and reflector
12 V
1-3 W
>100 lm/W
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Should be not less than 100% of this rated value throughout a voltage
range of 10.5 to 15 V and stated with the light temperature (warm,
cool)
Total initial lumen output should be 85 percent of nominal and
specified value after 100 hours of operation.
Should not produce interference, either radiated or conducted, in the
following radio frequencies: AM 530 kHz – 1600 kHz; SW1: 2.3 MHz – 7
MHz; SW2: 7 MHz – 22 MHz, and in any operating condition.
4
5
Construction / design
White LED protection
6
Lamp fitting
7
8
Switching lifetime
9
Covered by a highly transparent diffuser (Bare LEDs will not be
accepted)
Screw mounted
Integrated power supply must ensure safe, flicker free and stable
operation in the whole range of voltage (10.5 V to 15 V Rated voltage)
in the whole range of temperatures (see section: local environment
operating conditions)
Minimum number of cycles (at nominal voltage and 2 hours 45 minutes
on and 15 minutes off). Manufacturer/supplier must supply test
report.
Protected against reversed polarity.
E 27
>8000
10
Acoustic noise
At 1 m from the lamp under full load conditions
<30dB
11
IP ratings
For indoor use (for outdoor use : IP 54)
IP 42
Labeling of product
12
Each unit labeled
indicating:
Model number; rated voltage, wattage
and date of manufacture or batch number.
13
Serial number
If possible
Guarantee
14
Design lifetime
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Between 10.5 to 15 V operation and with lumen output of 80% or
rated value ((PVRS11A Sections 6.3.4.2 and 6.4.5.2 for conditions of
test).
>15000 hrs
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15
2 years
Product guarantee
International norms
The applicable standards are; certificate will be required

16
CE norms and ISO 9001
Additional requirements
17
Local norms
18
19
20
Local environment
operating conditions
Documentation requested
21
Additional comment
Lampshade
Must be respected if any exists
Each lamp must be supplied with a E27 holder in plastic (metallic
holder will not be acceptable)
Minimum and maximum operating temperature
15°C
45°C


Product brochure
Certificate of test of luminous efficacy over time (at least over
15000 hrs)
It will be an advantage to supply lamps with a dedicated permanent
marking that will differentiate these lamps with the lamp available on
the local market
PVC
This is an example of suitable
product (picture)
22
Exterior luminaire including lamp holder
1
2
Electrical characteristics
Voltage
>12V
The luminaire must allow the E27 3W LED lamp to be fitted inside
Construction / design
3
comprises the casing, diffuser and E27 lampholder
4
light diffuser may be made of glass or heavy duty transparent acrylic,
UV resistant (not polycarbonate)
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E27
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5
This is an example of suitable
product (picture below)
6
IP ratings
7
8
Connection terminals
Protection against rain and insect
IP 54
Lamp holder fitting
E 27
Screw types (for cables connections)
Labeling of product
9
Each unit labeled
indicating:
Guarantee
Model number,rated voltage, maximum allowed lamp wattage
10
Design lifetime
Weather and UV resistant
11
Product guarantee
International norms
10 years
>2 years
The applicable standards are; certificate will be required
CE norms and ISO 9001
12
Additional requirements
13
Local norms
Must be respected if any exists
14
Minimum and maximum operating temperature
16
Local environment
operating conditions
Documentation requested
17
Additional comment

15°C
45°C
Product brochure
Lampshade (In-door)
DC Switch
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1
2
3
Electrical characteristics
Voltage
Rated for DC service (24 V minimum)
12 V
Current
Rated for DC service
5A
Construction / design
4
Suited for wall mounting and be of surface mounted type
5
Should include a clear visual indication of their state (ON/0FF or I/O).
6
Wires in switches should be fixed with screwed terminals (tighten with
a screw, not spring).
Brandname
Labeling of product
Guarantee
Switching lifetime
7
Design lifetime
8
Product guarantee
International norms
Minimum number of cycles (at nominal voltage and 2 hours 45 minutes
on and 15 minutes off)
>16000
10 years
>2 years
The applicable standards are; certificate needed
IEC
9
Additional requirements
10
Local norms
Must be respected if any exists
11
Minimum and maximum operating temperature
12
Local environment
operating conditions
Documentation requested
13
Additional comment
Switching lifetime

15°C
45°C
Product brochure
>16000
DC Plug Box
1
Electrical characteristics
Voltage
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Rated for DC service (12V)
12 V
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2
3
4
Current
Rated for DC service
Comprise three pin-plugs and one car cigarette lighter holder
Only special DC sockets and plugs are allowed. No AC units acceptable.
10 A
3 +1
Construction / design
5
Suited for wall mounting and be of surface mounted type.
6
Designed to prevent reverse polarity connection.
7
Labeling of product
Marked during manufacturing: rated current and voltage,
manufacturer.
8
Guarantee
9
Design lifetime
10
Product guarantee
International norms
10 years
2 years
The applicable standards are; certificate needed
IEC
11
Additional requirements
12
Local norms
Must be respected if any exists
13
Minimum and maximum operating temperature
14
Local environment
operating conditions
Documentation requested
15
Additional comment
Example is supplied by Specialized Solar Systems
(www. specializedsolarsystems.co.za)
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
15°C
45°C
Product brochure
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To be filled by supplier
Fuse holder (supplied with a fuse)
1
2
Electrical characteristics
Voltage
Current
Construction / design
Rated for DC service (24 V)
Nominal (rated at least 150% above maximum loads output)
3
Fuse is to be installed about 10 cm from the battery positive terminal
4
Should be suited for blade fuses (automotive car fuse).
Wiring of the fuse holders should have a current rating of at least 30 A
at a voltage of 12 V (at least 4 mm2)
Have a protection cover to avoid electrolyte corrosion
5
6
12 V
20 A
The item is suitable (picture
on the right):
Labeling of product
Nothing required
7
Guarantee
8
Design lifetime
9
Product guarantee
International norms
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10 years
2 years
The applicable standards are; certificate needed
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Connectors, fuses and circuit-breakers should meet the specifications
given in 8.4 and 8.5 of IEC 61214 ed.1.
10
Additional requirements
11
Local norms
Must be respected if any exists
12
Minimum and maximum operating temperature
13
Local environment
operating conditions
Documentation requested
14
Additional comment

15°C
45°C
Product brochure
Outdoor cabling
Cabtyre (2.5mm2 or 4mm2)
Construction / design
1
Flexible (multistrand wire), 2-core.
2
Weatherproof and outer insulation must be sunlight (UV)-resistant:
- sheath of neoprene, UPVC, or hard PVC,
- “black surfix” with aluminium foil shield hard PVC sheath
(E.g : rubber-coated and PE-coated cables, Solar cable, or HO7RNF)
Temperature resistance of all interconnecting cables should be
3
4
color-code
Positive : Red or brown,
>75°C
Negative : Black or blue
Labeling of product
Marked during manufacturing : rated voltage, cross-section
5
Guarantee
6
Design lifetime
7
Product guarantee
International norms
8
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20 years
2 years
The applicable standards are; certificate needed

IEC 60811. (Common test methods for insulating and sheathing
materials of electric and optical cables)
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Additional requirements
9
Local norms
Must be respected if any exists (Applicable SABS/SANS standards)
10
Minimum and maximum operating temperature
11
Local environment
operating conditions
Documentation requested
12
Additional comment

-5°C
75 °C
Product brochure
Illumination Cable (2.5mm2 or 4mm2)
Construction/Design
Flexible (multistrand wire), 2-core
3
Color Code
Weatherproof and outer insulation must be sunlight (UV)-resistant:
- sheath of neoprene, UPVC, or hard PVC,
- “black surfix” with aluminium foil shield hard PVC sheath
(E.g : rubber-coated and PE-coated cables, Solar cable, or HO7RNF)
Positive : Red or brown, Negative : Black or blue
4
Labeling of product
Marked during manufacturing : rated voltage, cross-section
5
Design lifetime
1
2
6
7
20 years
2 years
Product guarantee
International norms
The applicable standards are; certificate needed
IEC 60811. (Common test methods for insulating and sheathing
materials of electric and optical cables)
8
9
Additional requirements
10
Local norms
Must be respected if any exists (Applicable SABS/SANS standards)
11
Minimum and maximum operating temperature
12
Local environment
operating conditions
Documentation requested
13
Additional comment
Document1
-5°C
75 °C
Product brochure
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Indoor Cabling
Special Ripcord (0.75, 1.5, 2.5 and 4 mm2)
3
Construction / design
Flexible insulated copper wires and cables, 2-core
4
Flat twin (parallel configuration) PVC insulated
5
Temperature resistance of cables should be :
6
color-code
Positive : Red or brown
>75°C
Negative : Black or blue
Labeling of product
Marked during manufacturing : rated voltage, cross-sections
7
Guarantee
8
Design lifetime
9
Product guarantee
International norms
20 years
2 years
The applicable standards are; certificate needed

10

IEC 60811. (Common test methods for insulating and sheathing
materials of electric and optical cables
IEC 60227-1:1993, Polyvinyl chloride insulated cables of rated
voltage up to and including 450 V/750 V-Part 1: General
requirements
Additional requirements
11
Local norms
Must be respected if any exists (Applicable SABS/SANS standards)
12
Minimum and maximum operating temperature
13
Local environment
operating conditions
Documentation requested
14
Additional comment
Document1

-5°C
75°C
Product brochure
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List of abbreviations:

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DOD : Depth of discharge
OV : Open Vented batteries (battery thats need distilled water topping up,
Mppt : maximum power point tracking
Mpp : maximum power point
Noct: Nominal operation cell temperature
SOC : State of charge (battery)
STC: standard test conditions
VRLA : Valve Regulated Lead Acid (maintenance freelead acid battery):
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