Mounting lights on trunking

Some of these IP65 anti corrosive things come with a variety of extras for differing application. The most helpful ones come with a pair of hook/eyelet things that attach to the top surface. Usually the couple of M4 bolts/screws come with a steel washer and a plastic, neoprene type gasket. This mitigates the hole "opening up" and cracking as the weight is spread, though the LED ones are very lightweight anyhow. IP65 is then maintained. Usually a IP65 20mm stuffing gland is supplied for one of the ends. So you have power trunking rather than lighting trunking [ as your lid is up ], so you need your own pair of "hooks" on the bottom face of the trunking, or you can use hammer on type hangers say off any angled unistrut or any available purling, if they exist. Appropriate length of chain and a way into the trunking for the flex to the light. That could be a Terminal Box on the bottom of the trunking with a stuffing gland [ compression gland] in the thread. There would be nothing wrong with using a nylon 20mm stuffing gland, instead, straight into trunking unless someone on-site is going to play "consultants inquisition". That nylon gland has added benefit of no sharp edges into the trunking.


Those "springy clip" things are ok, but do not give a lot of confidence. A good tug or twist and they fail, though if there is a tight stuffing gland and flex at least it will stop it falling totally out of the sky!

Some of these IP65 anti corrosive things come with a variety of extras for differing application. The most helpful ones come with a pair of hook/eyelet things that attach to the top surface. Usually the couple of M4 bolts/screws come with a steel washer and a plastic, neoprene type gasket. This mitigates the hole "opening up" and cracking as the weight is spread, though the LED ones are very lightweight anyhow. IP65 is then maintained. Usually a IP65 20mm stuffing gland is supplied for one of the ends. So you have power trunking rather than lighting trunking [ as your lid is up ], so you need your own pair of "hooks" on the bottom face of the trunking, or you can use hammer on type hangers say off any angled unistrut or any available purling, if they exist. Appropriate length of chain and a way into the trunking for the flex to the light. That could be a Terminal Box on the bottom of the trunking with a stuffing gland [ compression gland] in the thread. There would be nothing wrong with using a nylon 20mm stuffing gland, instead, straight into trunking unless someone on-site is going to play "consultants inquisition". That nylon gland has added benefit of no sharp edges into the trunking.


Those "springy clip" things are ok, but do not give a lot of confidence. A good tug or twist and they fail, though if there is a tight stuffing gland and flex at least it will stop it falling totally out of the sky!