NLL ikurikirana ya aluminium alloy stain clamp (ubwoko bwa Bolt) ikwiranye numurongo wikirere ugera kuri 35KV, gutunganya insinga ya aluminium cyangwa ibyuma bya minium wire kuri pole yanduye, umuyoboro wa aluminiyumu yo mu kirere hamwe na aluminiyumu ya insulasiyo ikoreshwa hamwe ibikorwa ni ukurinda insulasiyo.