UL 122:2019 pdf download.Photographic Equipment.
7.1.10 With reference to the requirements in 7.1.2 and 7.1.3. insulated brush caps are not required to be additionally enclosed.
7.1.11 If an interlock is prOvided to reduce the risk of contact with parts involving a risk of electric shock, the interlock shall comply with the requirements in Marking, Section 44.
7.2 Pin terminals
7.2.1 Pin terminals that involve a risk of electric shock shall be guarded or recessed to reduce the risk of a pin from being contacted unintentionally by persons while the cord-connector or plug is fully seated or is being removed from or placed on the pins. The guard or recess is to be evaluated as described in Zl_2 and 7.23.
7.2.2 With no plug or cord-connector on the pins, a straightedge placed in any position across and in contact with the guard or recess shall not touch any pin.
7.2.3 With the contact openings In the cord-connector aligned with the pins, and with the face of the plug or connector located rn the plane perpendicular to the end of the farthest projecting pin, it shall not be possible by means of a probe, illustrated in Figure 7.1 to touch any pin.
7.2.4 The plug specified in 7.21 is to be either;
a) A standard flatiron or appliance plug if the pins on the appliance are of standard flatiron- or appliance-plug configuration or
b) The plug supplied with the appliance. if the pins on the appliance are not of a standard flatironor apptance-plug configuration.
8 MechanIcal Assembly
8.1 An appliance shall be assembled so that it will not be affected adversely by vibration during its
intended operation.
8.2 Properly tightened screws, with or without a lock washer, and staked and upset screws are
considered not subject to loosening.
8.3 A switch, fusehokier, lampholder, attachment-plug receptacle, motor-attachment plug, or similar device, shall be secure4y mounted and prevented from turning or shifting in position, If such motion results in a reduction of spacings below the applicable values specified in Spacings, Section 30.
Exception: A switch or lamphokier is not required to be mounted as specified if they comply with the requirements in 8.4 and .
7.1.11 If an interlock is prOvided to reduce the risk of contact with parts involving a risk of electric shock, the interlock shall comply with the requirements in Marking, Section 44.
7.2 Pin terminals
7.2.1 Pin terminals that involve a risk of electric shock shall be guarded or recessed to reduce the risk of a pin from being contacted unintentionally by persons while the cord-connector or plug is fully seated or is being removed from or placed on the pins. The guard or recess is to be evaluated as described in Zl_2 and 7.23.
7.2.2 With no plug or cord-connector on the pins, a straightedge placed in any position across and in contact with the guard or recess shall not touch any pin.
7.2.3 With the contact openings In the cord-connector aligned with the pins, and with the face of the plug or connector located rn the plane perpendicular to the end of the farthest projecting pin, it shall not be possible by means of a probe, illustrated in Figure 7.1 to touch any pin.
7.2.4 The plug specified in 7.21 is to be either;
a) A standard flatiron or appliance plug if the pins on the appliance are of standard flatiron- or appliance-plug configuration or
b) The plug supplied with the appliance. if the pins on the appliance are not of a standard flatironor apptance-plug configuration.
8 MechanIcal Assembly
8.1 An appliance shall be assembled so that it will not be affected adversely by vibration during its
intended operation.
8.2 Properly tightened screws, with or without a lock washer, and staked and upset screws are
considered not subject to loosening.
8.3 A switch, fusehokier, lampholder, attachment-plug receptacle, motor-attachment plug, or similar device, shall be secure4y mounted and prevented from turning or shifting in position, If such motion results in a reduction of spacings below the applicable values specified in Spacings, Section 30.
Exception: A switch or lamphokier is not required to be mounted as specified if they comply with the requirements in 8.4 and .
