Has anyone ever had customers complaining that they find it impossible to operate 45/50 Amp. ceiling shower cord switches. They just haven't got the strength.
Was was your solution?
Z.
Jaymack:
20.9 The operating member of a cord-operated switch shall have adequate strength.
Compliance is checked on a new specimen by the following test:
The switch is mounted on a support as in normal use.
A pull of 100 N is applied for 1 min on the operating member as in normal use, after which a
pull of 50 N is applied for 1 min in the most unfavourable direction within a conical surface with the centre being the operating cord and the angle not exceeding 80 ° to the vertical.
After the test the switch shall show no damage within the meaning of this standard. The operating member shall not have broken and the cord-operated switch shall still operate.
That means that if you attach a 10 kg weight, the cord won't snap, the switch will not fall apart, and the screws will not pull out of the ceiling.
I have just tested a light switch, which took a bit under 1.5 kg (the weight of a small lump hammer) to operate. I see no reason why a higher rated switch should require more force.
I fear that the old codger is very confused. He may be pulling down, but not letting go, in which case the switch will not operate.
So the operating force is only 1.5 kgf and is going downwards, it isn't even necessary to pull. That's 'cos an arm weighs significantly more than 1.5 kg. If you wrap the cord around a finger and just let the arm go floppy, the switch will operate.
Jaymack:
20.9 The operating member of a cord-operated switch shall have adequate strength.
Compliance is checked on a new specimen by the following test:
The switch is mounted on a support as in normal use.
A pull of 100 N is applied for 1 min on the operating member as in normal use, after which a
pull of 50 N is applied for 1 min in the most unfavourable direction within a conical surface with the centre being the operating cord and the angle not exceeding 80 ° to the vertical.
After the test the switch shall show no damage within the meaning of this standard. The operating member shall not have broken and the cord-operated switch shall still operate.
That means that if you attach a 10 kg weight, the cord won't snap, the switch will not fall apart, and the screws will not pull out of the ceiling.
I have just tested a light switch, which took a bit under 1.5 kg (the weight of a small lump hammer) to operate. I see no reason why a higher rated switch should require more force.
I fear that the old codger is very confused. He may be pulling down, but not letting go, in which case the switch will not operate.
So the operating force is only 1.5 kgf and is going downwards, it isn't even necessary to pull. That's 'cos an arm weighs significantly more than 1.5 kg. If you wrap the cord around a finger and just let the arm go floppy, the switch will operate.
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