Installation Guide

MODULE INSTALLATION AND USER MANUAL – PERC AND MONO SERIES
REVISION DATE:
06/19/2017
DOCUMENT #
GE- SA1- 0006
PAGE:
12 OF 14
MISSION SOLAR ENERGY - MSE CONTROLLED- PROPRIETARY & CONFIDENTIAL - RELEASED
Reproduction, dissemination, copying, modification, distribution and/or publication of this material is STRICTLY PROHIBITED. Disclosure of this document,
in any manner to a third party, requires prior written consent from MISSION SOLAR ENERGY LLC.
REVISION: R4 RELEASE DATE: 11/16/2016
11.0 ELECTRICAL INSTALLATION
11.1. LOCAL/NATIONAL CODE AND LOCAL REGULATIONS
To carry out installation, local regulations that may apply should be taken into account such as NEC
(USA) or Canadian Electrical Code (Canada). Wiring should be performed by a qualified and licensed
professional. Wiring should be protected to help ensure personal safety and to prevent its damage. All
modules connected in series should be of same model number and/or same type. Do not connect
modules in parallel without using a combiner box or equivalent.
Under normal conditions, a photovoltaic module is likely to experience conditions that produce current
and/or voltage than reported at standard test conditions. The requirements of the National Electric
Code (NEC) in Article 690 shall be followed to address these increased outputs. In installations not
under the requirements of the NEC, the values of I
SC
and V
OC
marked on this module should be
multiplied by a factor of 1.25 when determining component voltage ratings, conductor capacities, over
current device ratings and the size of controls connected to the PV output.
11.2. WIRING
Mission Solar PV modules come with factory assembled J-Box. Do not open junction box in any case.
Wiring must be done in accordance with local/national code and regulations; wear protective gloves
and shoes to avoid electric shock. Address the following recommendations.
 The modules combined in parallel will produce a specific current output. Each series string or
module will be required to be fused. Table 1 describes the maximum fuse size allowed.
 Do not connect the modules if the connectors are wet.
 Be sure to put the cables away from sharp edges
 If you need additional cables you must use exclusively solar cable of 12AWG/4mm
2
minimum
cross-sections, with ability to work in a temperature range of at least -40
o
C and 90
o
C.
 Install the modules so that water from rain or condensation cannot penetrate inside the cable
conduits.
 Fix cables to the structure so that the connectors are protected from water ingress. Cables should
be held by UV resistant clamps or ties.
 To minimize possible effects of lightning induced voltages, the surface of all conductive loops
must be as small as possible.
 Check that the wiring is correct before starting operating the installation by verifying that the
open voltage is within expected values.
 Unprotected cables that could suffer mechanical damage must be protected.
 Avoid direct sunlight on cables.
 Maximum series fuse rating is 15A.
 Details for wiring in accordance with the NEC, and that the grounding method of the frame of
arrays shall comply with the NEC, article 250.
 Installation shall be in accordance with CSA C22.1, Safety Standard for Electrical Installations,
Canadian Electrical Code, and Part 1.
 Modules may be connected in series (voltage additive) and/or in parallel (current additive) to
produce the appropriate electrical output. When connecting modules in parallel, each module