SOLAR STREET LIGHT TECHNICAL SPECIFICATION

1. GENERAL SOLAR STREET LIGHT DESIGN REQUIREMENT GENERAL

The solar street light scope of supply shall consist of the design, production of materials, manufacturing, drawings and data, assembly, painting, testing, inspection and all all in accordance with applicable codes and standards and any additional requirements of this specification,the Solar street light operates from Dusk to Dawn i.e., the lamp automatically switches ON after the sunset and switches OFF after sunrise.

SOLAR STREET LIGHT DIAGRAM

SOLAR STREET LIGHT DIAGRAM

The solar street lighting system basically consists of:

a) Solar photovoltaic Module
b) Luminaire/LED sreet light
c) Low maintenance battery
d) Pole and solar panel bracket
e) Battery box
f) Interconnecting cables

The solar photovoltaic module is fixed firmly on top of the pole with suitable tilt and inclination so as to receive maximum sunlight throughout the day. The solar photovoltaic module thus produces suitable voltage and current, which is used to charge the battery inside the battery box. This energy stored in the battery is used to light up the LED which is housed inside the luminaire during night time.

Energy efficient LED street lamps of at suitable watts with 25 Lux requirements, an inverter and charge controller card, which is used to convert the stored DC energy in the battery to suitable AC voltage to ignite the LED. A reflector is provided in the LED street light to increase and spread the light uniformly.

The charge controller protects the battery from over charge and deep discharge.

The Solar photovoltaic module, led street lamp and the battery box are fixed on to the Pole and are interconnected through the cables. The solar street light operates in the stand alone mode.

The solar battery is housed inside a battery box, which is underground or fixed on to the pole at a suitable height from the ground for easy maintenance and replacement. The battery provided shall be low maintenance tubular lead acid type. This requires minimal maintenance and has a long life with regular use. Periodical maintenance of the battery includes topping up distilled water once in 2-3 months and applying petroleum jelly to the terminals to prevent corrosion.

The Street lighting system shall be equipped with the following:

solar street light lux

solar street light lux

> 12V/24V Solar Module Energy efficient LED street lamps of suitable Watts with min 25 Lux.
> 1 or 2nos. of low/negligible maintenance batteries in an IP 65 enclosure.
> Pole with pedestal/mounting accessories
> Automatic On/Off operation
> Any other accessories not mentioned here but required for completion of the work and proper Functioning of the solar street lighting system

1.1 SOLAR MODULE OF THE LIGHTING SYSTEM

High efficiency, mono/multi crystalline silicon. Solar module designed to withstand tough environment conditions with test certificate.

1.2 LUMINAIRE/ LED street light

Luminaire with transparent acrylic cover, housing a high efficiency LED street lamp fitted with gasket and accessories for weather and insect proof operation.

1.3 SOLAR STREET LIGHT CHARACTERISTIC

LED street lamp design shall be lighting area covered along the road is more compared to across the road i.e, at least 25 Lux/m at certain height of the pole.

1.4 BATTERY

One or Two battery, 12V or 24V spill proof, maintenance free batteries.

solar street light

solar street light

1.5 SOLAR STREET LIGHT POLES

The solar street light pole must be made of MS and hot dip galvanized with powder coated. The pole shall be heavy duty and suitable for rural applications.

1.6 INPUT POWER CONSUMPTION

The led street lamp power achieve desired lux level.

1.7 INPUT OPERATING VOLTAGE

12 / 24 VDC nominal system voltages.

1.8 LIGHT OUTPUT OF THE SOLAR POWER LIGHTING SYSTEM

Minimum of 25 LUX at certain required height of pole choice

2. SOLAR STREET LIGHT INSPECTION AND TESTING

Inspection and Testing as per standards shall be performed on Solar System module for the prescribed lighting requirements.

3. SOLAR STREET LIGHT PAINTING AND SHIPPING PREPARATIONS

Material used for Lighting columns, brackets and anchor bolts shall conform to applicable international standards and shall be hot dip galvanized.

4. SOLAR STREET LIGHT TRACEABILITY

A proper coding schedule, showing all relevant options for each type of solar lighting system so that any third party can “decode” an ordering code and determine the exact properties and options of the material.
This coding system must guarantee that any installed material can be checked for compliance to the relevant standards without the need for removal dismantling.

5. SOLAR STREET LIGHT GUARANTEE

5.1 General of solar street lighting system guarantee

5.1.1 Solar street light supplier shall guarantee the item in term of design, materials and workmanship for the period specified in the Purchase Order. The equipment shall be guaranteed to operate satisfactorily at rated conditions and all other conditions within the specified range as indicated in the relevant data sheets and applicable codes and specification referenced at origin sheet.

5.1.2 All equipment and materials within solar street light supplier scope of work shall be designed for a 25 years Design Life.

5.2 Make-Good

5.2.1 In case of any item and/or any components are demonstrated not to meet the required guarantees at the operating/design conditions, solar street light manufacture shall provide at his care and cost any necessary corrective action to comply with the required performance values.

5.2.2 Corrective actions shall include, but not limited to, design modification of supplied equipment, substitution or repairing of the involved materials.

6. SOLAR STREET LIGHT ENVIRONMENTAL CONDITIONS

The environmental conditions that shall be taken into account in the design, are as herein resumed:

Ambient temperature
* minimum 0°C
* maximum 55°C
* surface exposed to sun 82 °C (Black Bulb Temp)

Rainfall
* annual negligible mm
* maximum hourly 25 mm
Relative humidity
* maximum 98%
* minimum 30%
* mean 74%
Seismic conditions
* ASCE-7/05 provisions not applicable

Climatic Area Classification
* Desert region with very low rainfall, very hot temperature, low humidity and frequent heavy sandstorms.

7. SOLAR STREET LIGHT QUALITY

7.1 Solar street light supplier shall plan and Implement for execution of the scope of work an effective Quality Solar Lighting System according to latest edition of ISO 9001. Solar street light factory shall define the QA/QC activities, including the identification of critical materials that will require specific inspection and testing.

7.2 Manufacture of solar street light shall submit for review and approval by COMPANY a set of project specific Inspection and Test Plans (ITP) covering all main components and equipment of the Packages,
Inspection and Testing before shipping from Manufacturer workshop shall be performed and witnessed or observed as indicated in the Material requisition.

7.3 The ITP(s) shall be structured in a sequential manner, including the following requirements against each activity to be carried out

Applicable procedure
Applicable Codes & Standards or Specifications
Acceptance criteria
Records to be issued
Definition of Quality Surveillance Points of the involved COMPANY and COMPANY representatives.

8. SOLAR STREET LIGHT PACKING

solar street light package

solar street light package

8.1 All materials of the solar powered system shall be packed and protected for transport and storage gt site conditions as specified in the COMPANY Specification referenced at chapter.

8.2 All loose materials shall be delivered with plastic labels (Indelible painted) indicating the lags of the items and the relevant erection drawing numbers.

8.3 Poles/enclosures shall be protected against corrosion during shipping and at fabrication yard.

8.4 Materials shall be packed for an outside storage period of 12 months.

8.5 Seaworthy packing is required.

A minimum of 12 months storage periods shall be assumed. All equipment shall be securely packaged and protected against external damage; each internal component shall be securely fixed but, as necessary, temporary additional supports must be provided to avoid any equipment detach or break during transportation. Solar street light manufacture shall advise any requirements for preservation of equipment and materials for long term storage after delivery.

9. SOLAR STREET LIGHT DOCUMENTATION

Solar street light provider shall provide as a minimum, but not limited to, all documentations listed below. All documentation shall be in the English language.

10. SOLAR STREET LIGHT International Codes and Standards:

Explosive atmospheres . IEC 60079

Explosive atmospheres Equipment protection by increased safety IEC 60079-7

Surge arresters IEC 60099

Semiconductor convertors – General requirements and line commutated convertors IEC 60146

Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V IEC 60227

Basic and safety principles for man-machine interface, marking and identification 一 Identification of equipment terminals, conductor terminations and conductors IEC 60445

Degrees of protection provided by enclosures {IP code) IEC 60529

Crystalline silicon terrestrial photovoltaic (PV) modules — Design qualification and type approval IEC 61215

Low voltage switchgear and controlgear» Circuit-breakers IEC 60947-2

Electromagnetic Compatibility (EMC) Generic standards 〜Immunity for industrial environments IEC 61000-6-2


 

Author: Eric Cao
sales manager at Top Solar Industrial