Not Otherwise Specified
Channel and Tray is the best cable tray manufacturer in the UK
Its a tray that can carry like ladders.
They are both cable tray standards. NEMA VE-1 deals with the manufacturing of cable tray and NEMA VE-2 deals with the installation of cable tray.
you need cable tray rated wire to use in a cable try a cable tray is basically open to air so the current rating of the wire doesnt need to be reduced if you have more than 4 conductors cable tray rated tubing is fine( temperature flammability) steel or copper is fine.
To join the pair of cable trays.
A cable tray is a rigid structure to support electric cables.
See NEC Article 392. It depends on the voltage, conductor size and the type of cable tray selected.
A service tray hold the plates of food; a tray stand holds the service tray.
A portable utility tray formed from a resilient thermoplastic material,such as polyethylene.
Actually, a data cable tray is a low voltage cable tray also. Data systems are accepted as low voltage systems. Ordinary two data cables do not form any magnetic disturbance to each other. So for an ordinary situation no vertical or horizantal distance required.
In a shop
no use laying an earthing strip in a cable tray better tap both the ends of the earthing wire to the trunking,it will save your wire also,or lay out a cable in the other trunking where you have low voltage wire running in.