The copper clad aluminum busbar is made of copper and aluminum. The bonding strength is very high. However, if the processing method is improper, it is easy to stratify. In the surface processing of copper clad aluminum busbar, pay attention to the following items:
Fastening
When bolting the copper clad aluminum busbar with bolts, an extra large washer is required. When there is a butterfly spring, a 2-3 mm thick steel plate is placed in the butterfly spring to disperse the pressure applied to the copper clad aluminum busbar. Do not tighten the bolts too hard.
Surface passivation process
• The surface of the copper clad aluminum bus bars is smooth and smooth.
• Drain the copper clad aluminum bus bars into a passivation bath with a concentration of three thousandths of a passivation tank for 3-5 seconds.
• Remove the copper clad aluminum bus bars for drying. The passivation solution is a CH-910 copper passivator with a chemical composition of benzotriazole, which does not cause chemical reaction to aluminum.

Category	Copper clad aluminum busbar specification（mm）	The maximum length（mm）	Weight per meter（kg）	Ampacity（A）
conventional	3*25	6000	0.28
	3*30	6000	0.32
	3*40	6000	0.44
	3*50	6000	0.54
	4*30	6000	0.44	221
	4*40	6000	0.575	272
	4*50	6000	0.72	340
	4*60	6000	0.86	408
	4*80	6000	1.18	544
	4*100	6000	1.52
	4*120	6000	1.82
	5*30	6000	0.54	255
	5*40	6000	0.72	340
	5*45	6000	0.81	381
	5*50	6000	0.915	425
	5*60	6000	1.09	510
	5*80	6000	1.45	680
	5.5*35	6000	0.69
	5.5*45	6000	0.9
	5.5*55	6000	1.1
	5.5*70	6000	1.5
	5.5*85	6000	1.8
	5.5*110	6000	2.2
	5.5*120	6000	2.5
	6*30	6000	0.65	306
	6*40	6000	0.86	408
	6*50	6000	1.09	510
	6*60	6000	1.31	780
	6*70	6000	1.52	714
	6*80	6000	1.74	816
	6*85	6000	1.85	867
	6*100	6000	2.18	1020
	6*110	6000	2.4
	6*120	6000	2.61	1224
	6*140	6000	3.05	1428
	6*150	6000	3.26
	8*40	6000	1.16	544
	8*50	6000	1.45	680
	8*60	6000	1.74	816
	8*70	6000	2.03	952
	8*80	6000	2.35	1088
	8*85	6000	2.52
	8*100	6000	2.9	1360
	10*40	6000	1.45
	10*50	6000	1.81	850
	10*60	6000	2.18	1020
	10*70	6000	2.54	1190
	10*80	6000	2.9	1360
	10*100	6000	3.63	1700
	10*120	6000	4.36	2040
	10*125	6000	4.54	2125
	10*140	6000	5.1	2380
	12*120	6000	5.23	2448
	10*150	6000	5.7
	12*150	6000	6.8