Solar Junction box PV-JB003 ST01

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PV-Junction box,Due to highly robustness,UV-resistance,the touch protection a high grade connection is guaranteed for many years


PV-Junction box

Rated voltage                                                                1000 V

Rated current                                                                30 A

Contact resistance                                                        ≤5mΩ
Dia of pin or socket                                                        3mm /4mm

Protection degree(mated,junction box closed/unmated)     IP65/IP2X

Operating temperature                                                    -40 C  to +85C


Insulation material                                                          PPO

Contact material                                                            Copper,silver plated

Max.Heat dissipation      Assessment should be make after final assembly of junction box


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Q:Rooftop solar system
2013 PV industry in Europe and the United States antitrust investigation, overcapacity led to the collapse of a large number of photovoltaic industry in Zhejiang, solar prices have fallen. This can be checked at any time online
Q:What are the main features of solar photovoltaic systems
Compared with the commonly used thermal power generation system, the advantages of photovoltaic power generation:No danger of depletion; safe and reliable, no noise, no pollution, absolutely clean (pollution-free); not subject to geographical distribution of the resources, can take advantage of the building roof; for example, areas without electricity, and complex terrain area; no fuel consumption and the erection of transmission line can be on-site power supply high quality energy;; users emotionally receptive; the construction period is short, get energy to spend a short time.
Q:Solar PV systems
Second distributed photovoltaic power generation refers to the user in the vicinity of the site or the construction of the operation, to the user side of the spontaneous use of their own, the excess electricity and the balance of the distribution network system for the characteristics of the photovoltaic power generation facilities.
Q:What are the devices needed for PV systems?
Controller。 Device for regulating and controlling electric energy.
Q:Solar photovoltaic system
Analysis of economic benefits: 50kW distributed photovoltaic PV power plant total operating period: 25 years of this project on average generating capacity: the annual average generating capacity of 200kWh: 73000kWh, 25 years of total power: 1825000kWh residential electricity price: 0.55 yuan /kWh local coal-fired power benchmark price: 0.44 yuan /kWh (the case): Total investment the total investment of about 450 thousand yuan, equivalent to 9 yuan / watt.
Q:How to calculate the income of photovoltaic system
There are two kinds of algorithms, one for the total solar energy and the total electricity consumption, a solar photovoltaic power generation in real-time and real-time electricity.
Q:I want to install a full set of domestic solar heating equipment does not know how much money to spend, please.
According to the annual use of 280 square meters of construction area of the average daily consumption of 11 square meters, energy saving rate of more than 50% of the total energy consumption of more than 11 square meters. Cost: 38000 yuan (excluding heating part); system design life: 20 years; saving ratio: 280 square housing annual use of wall mounted gas boiler is about 3000 cubic meters of natural gas per cubic, an average of 2.2 yuan, a total of 6600 yuan.
Q:Solar power generation system suitable for home, how much is the cost of a set?
The use of solar power system has many parts, have the power of this parameter, he said 500W1000W is a parameter which kind of accessories, and electricity related degree is large, panels, solar power systems, accessories, solar panels for electricity generating capacity of the inverter board and the two parts of the largest correlation under normal circumstances, the board 1000W day power of 4
Q:What are the advantages and disadvantages of small-scale solar power generation system?
There are intermittent and random ground application, power generation and climatic conditions in the night or rainy days have little or no power; lower power density, under standard conditions, the solar radiation intensity on the ground received for 1000W/M^2. Large scale use, the need to occupy a larger area; the price is still more expensive, for conventional power generation 3~15 times, the initial investment is high.
Q:What are the components of the solar photovoltaic system?
TPT: on the back of the solar battery cover of fluorine plastic film is white, the sun has reflection function, so the efficiency of components increased slightly, and because of its high infrared emissivity, can reduce the working temperature of the component, but also conducive to improve the efficiency of the component. Of course, the fluorine plastic film with the first solar cell packaging materials required for aging, corrosion resistance, air permeability and other basic requirements.

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