حماية واجهات LED من الارتفاعات العابرة: تنسيق AC و24V DC وDMX

دليل هندسي لتحديد الواجهات والأحمال وحدود الحماية.

ثلاث طبقات حماية

Map AC supply, 24V DC branches and DMX signalling as separate conductive interfaces. IEC treats AC and signalling SPDs in distinct application standards [S2][S4].

مثال 24 وحدة إنارة

Illustrative case: 24 fixtures × 36W = 864W. Eight fixtures per 24V group equal 288W and an ideal 12A load. Audit 11 conductive interfaces; this is an interface count, not a device prescription.

خطوات التنسيق

1. Draw protection boundaries and cable routes.
2. Obtain equipment surge-withstand data.
3. Select interface-compatible protection.
4. Verify short direct connections, bonding and maintenance.

الأسئلة الشائعة

A cabinet SPD does not automatically prove remote fixtures are protected. Final device ratings, quantities and locations are 待确认.

المصادر

1. IEC 62305-4
2. IEC 61643-11
3. IEC 61643-21
4. LIKELIGHT product reference

Author: LikeLight Tom, Operations. Technical reviewer: 待确认. Evidence reviewed August 23, 2026.