LV 123 EMC for High-Voltage Vehicle Components- 3CTEST

LV 123 Standard Introduction

Inquiry function description Comparison Function Description

LV 123 belongs to the family of joint requirements drawn up by several German vehicle manufacturers, which is the origin of the LV prefix and the reason the document is so widely cited: a component qualified against it satisfies the equivalent requirement of every manufacturer that adopted it, and a supplier working for more than one European programme can avoid repeating the qualification. Its subject is the high-voltage system of a vehicle, the traction circuit in which the voltage is high enough to be hazardous, and that changes the character of the testing. The equipment operates with a high voltage present, so the test arrangement must be safe for the technician; the switching of the traction inverter generates disturbance in a frequency range and at a level that does not occur in a conventional vehicle; and the measurement of emissions from a high-voltage cable requires radio frequency current probes and an anechoic environment. The requirements cover both emission and immunity.

LV 123 standard satisfiable test: Low-Voltage Supply Micro-Interruption Testing 、 EV High-Voltage Electrical Performance Testing 。

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Inquiry function description

• Using the product inquiry function can help you quickly learn about the product's price and other related information.

• You can either inquire about a single product directly, or select multiple products to add to the inquiry bar and inquire about them together.

• How to make an inquiry

1. How to add a product to the inquiry bar

1） Select from any product list

2） Select from any product detail page

2. How to access the inquiry bar

1） Click the floating "Inquiry" button on the right side of any page

2） Then fill in your information on the inquiry page

3. How to inquire directly

1） Go to any product detail page, click "Inquiry Now", and then leave your information in the pop‑up window

Comparison Function Description

1. Using the product comparison function can help you find the target product you need for selection more quickly and easily.

2. You can add up to 5 products for comparison. Product models and parameters may vary across different series. It is recommended to compare products within the same series.

3. How to use the comparison bar.

1. How to add a product to the comparison bar.

1） Select from any product list

2） Select from any product detail page

2. How to perform a comparison.

1） Click the floating "Compare" button on the right side of any page.

2） After confirming the products you have selected for comparison, click "Start Comparison" to view the comparison results.