AXITEC AC-340M/72V Manual de instalação - Página 10

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4. Electrical Installation

The electrical characteristics are within ±3% percent of the indicated values of Isc, Voc, and Pmax

under standard test conditions (irradiance is 100 mW/cm2, AM 1.5 spectrum, and a cell

temperature of 25°C (77°F). A module with exposed conductive parts is considered to be in

compliance with UL 1703 only when it is electrically grounded in accordance with the instructions

presented below and the requirements of the National Electrical Code (NEC).

For installations in Canada, shall be in accordance with CSA C22.1, Safety Standard for Electrical

Installations, Canadian Electrical Code, Part 1.

4.1.

Modules should be mounted to maximize direct exposure to sunlight and to eliminate

or minimize shadowing. Even partial shadowing can substantially reduce module and

system output. Furthermore, partial shadowing can elevate the shaded portion's

internal temperature, which may lower output and shorten module life. Bypass diodes

are factory installed. Blocking diodes should be installed in series with each module or

series string to prevent possible back flow of energy through the modules when

modules or strings are connected in parallel or used in conjunction with a battery.

4.2.

Whenever necessary to comply with local codes, use a listed fuse or circuit breaker,

rated for the maximum series fuse rating of the module and the system voltage.

4.3.

All electrical components should have ratings equal or greater to the system rating. Do

not exceed the maximum allowable system voltage as listed on the module label. All

module frames should be grounded for safety.

4.4.

Under normal conditions, a photovoltaic module may experience conditions that

produce more current and/or voltage than reported at Standard Test Conditions.

Accordingly, the values of short circuit current, and open circuit voltage, marked on

modules should be multiplied by a factor of more than 1.25 when determining

component voltage ratings, conductor capacities, fuse sizes, and size of controls

connected to the module output. Rated electrical characteristics are more than 10

percent of measured values at Standard Test Conditions of: 1000 W/m

temperature and solar spectral irradiance per ASTM E 892.

4.5.

Axitec LLC modules are equipped with factory-installed wires and quick connectors.

These modules have been designed to be easily interconnected in series. Each module

has two single-conductor wires, one positive and one negative, that are pre-wired

inside the junction box. The connectors at the opposite end of these wires allow easy

series connection of adjacent modules by firmly inserting the male connector of a

module into the female connector of an adjacent module until the connector is fully

seated. For more information, please See module literature for appropriate mating

connectors.

4.6.

A separate return wire or wires may be required to run the positive and negative

terminations of the series string of modules to the load. Male and/or female

connectors pre-attached to wires may be used at the string terminations for return

wire connections and/or for source circuit box terminations.

4.7.

All modules have (3) by-pass diodes installed.

Installation Manual

, 25℃ cell

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