Definition
An electrical wiring harness manufacturer is an electrical company specialising in the design and manufacture of electrical wiring harnesses. An electrical wiring harness is a kit designed to make electrical installation easier. To find out more, you can read our article on the subject.
They work in new-build and building renovation projects in the residential, collective and individual housing, and commercial sectors. Their customers include building professionals (house builders, property developers, installers), self-employed tradespeople and private individuals. Their service includes the electrical installation study, supply of equipment (electrical wires, conduits, electrical panel, GTL, etc.) and workshop prefabrication. Some companies offer installation or verification of the installation depending on the type of service selected.
The design office
Within an electrical wiring harness manufacturing company, the design office determines the electrical requirements of the building. They use the NF C 15-100 and RT 2012 standards as a basis for defining requirements, which depend mainly on the number of rooms in the house and the floor area of the dwelling. They also review the details of the customer’s project and personal requirements (additional electrical sockets, switches, heaters, lighting points, RJ45 sockets, etc.) with the customer in order to refine the specification.
During the study, they define the diameter of electrical wires for low-current and high-current networks. They specify the required conduit diameters according to the number of electrical wires to be run inside them and their position in the home. They can therefore determine the number of wiring harnesses required for the electrical installation.
Using the house plans, the design office produces the electrical wiring harness plans using software dedicated to wiring, such as SchemBat, Desa or M-ElecDWG.
They then prepare a quotation for the electrical wiring harness kit. If the customer carries out the installation themselves, savings of 50% can be achieved compared with a conventional installation fitted by an electrician.
Equipment and prefabrication
Using an electrical wiring harness manufacturer can help you save money on electrical equipment. These companies have substantial purchasing volumes, enabling them to offer competitive prices on electrical equipment (electrical panels, electrical wires, ICTA conduit, etc.).
An electrical wiring harness designer works with machines dedicated to optimising production time, such as an automatic pre-wiring machine, which saves a considerable amount of time when inserting wires into electrical conduits.
During the workshop manufacturing phase, the electrical wiring harness manufacturer prepares the kit with all the central junction boxes (the heads of the electrical wiring harnesses), junction boxes, labelled pre-wired conduits, etc. The entire assembly is put together and connected, and the electrical panel is wired and tested before being sent to the customer together with an installation plan.
Allow approximately two weeks for an electrical wiring harness manufacturer to produce the electrical wiring harness kit.
