I suppose that one to be said about the non-gland method illustrated is that it provides considerable redundancy (many belts and/or braces), since six terminals would have to 'become loose' before the armour would totally lose its connection to the ancillary earth bar (it would be even better if all connections were to the same earth bar, since the illustrated arrangement is at the mercy of the single connection between the two earth bars)!
it would be even better if all connections were to the same earth bar, since the illustrated arrangement is at the mercy of the single connection between the two earth bars!
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