Aluminium alloy strain clamp and insulation cover(Bolted type,Type NLL)

●Application:

NLL series aluminium alloy strain clamp (Blot type ) is suitable for aerial line up to 10kV,fixing aluminium wire or steel core aluminium wire on the strain pole ,aerial insulation aluminium conductor and insulation aluminium cover are being used together, It’s action is insulation protection.

●Structure feature

1,The body is made of high-strength aluminium alloy

2,Smooth surface long servile life

3,Easy installation

4,No waste electric energy

●Specification

Type	Applicable conductor	U-bolt		Rated failure load kN	Insulation conductor (mm2)
		No of U bolt	Dia		1KV	10KV
NLL-1	5.0~10.0	2	M12	40	25-70	10-25
NLL-2	10.1~14.0	2	M12	40	50-120	25-50
NLL-3	14.1~18.0	3	M14	70	120-240	70-120
NLL-4	18.1~23.0	3	M14	90	185-300	150-240
NLL-5	23.0~29.0	5	M16	100		300

 

●Insulation cover performance feature

1,Withstand voltage: ≥18kV keep voltage one minute not break down

2,Insulation resistance: >1.0×10¹⁴Ω

3,Environments temperature: -30℃~90℃

4,Weather proof performance: have good performanced after 1008 hours artifical climate aging test.

●Specification